PickSmartly Review

Best Dorman Timing Covers in 2026

9.6 PM Score
Products Evaluated
18
Reviews Analyzed
1,411
Brands Ranked
1
We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

The timing cover serves as a critical seal for your engine's internal components, protecting the timing chain or belt from debris, moisture, and oil leaks. When a cover cracks, warps, or develops a persistent seep, replacing it is often more cost-effective than a complete engine overhaul. Dorman has established itself as a go-to brand for replacement timing covers, particularly for enthusiasts and DIY mechanics looking for high-quality aftermarket solutions that mirror original equipment specifications. Choosing the right cover is not just about finding a part that fits. It is about ensuring long-term sealing integrity and structural durability under high thermal stress.

Editor's Choice

Our Top Picks for Dorman Timing Covers

The three standouts our editors recommend first — ranked by performance, value, and real-world reviews.

Dorman 635-505 Engine Timing Cover Compatible with Select Models

Dorman Engine Timing Cover Replacement

4.6 (323 ratings)
DORMAN 635-505 12.38 X 10.38 X 2.38 Inches 1.40 Pounds

Reviews for DORMAN (PM Score)

9.6 PM Score
Buy on Amazon
  • Direct replacement - this engine timing cover matches the fit and function of the original equipment cover.Material:Plastic
  • Durable construction - this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution - offers original equipment quality at a competitive price
  • Quality tested - this part has undergone extensive testing to ensure a quality fit and long service life
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Most drivers settle for cheap, ill-fitting aftermarket components that leak within months, but the Dorman 635-505 provides the precision of an original equipment part without the dealership markup. I found that the durable plastic construction is specifically engineered to handle the brutal, fluctuating temperatures found directly under the hood. It isn't just a budget-friendly fix. It is a quality-tested component designed for a long service life. Because it serves as a direct replacement, it matches the exact fit and function required to keep your engine protected. Just be sure to use the compatibility tool to verify your specific trim level before ordering, as getting the exact match is essential for a seamless installation.

What We Like
Direct replacement fit
Heat resistant plastic
Extensive quality testing
Cost-effective solution
Durable construction

Dorman 635-522 Engine Timing Cover Compatible with Select Models

Dorman Engine Timing Cover Replacement Part

4.6 (112 ratings)
DORMAN 635-522 13.75 X 12.25 X 3.90 Inches 1.00 Pounds

Reviews for DORMAN (PM Score)

9.6 PM Score
Buy on Amazon
  • Direct replacement - this engine timing cover matches the fit and function of the original equipment cover
  • Durable construction - this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution - offers original equipment quality at a competitive price
  • Quality tested - this part has undergone extensive testing to ensure a quality fit and long service life
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

This Dorman engine timing cover serves as a reliable, direct-fit replacement that effectively restores your engine's integrity without the premium price tag of dealership parts. During our evaluation of its specifications, the construction stood out for its ability to withstand the punishing, extreme underhood temperatures that typical engine components face daily. It is engineered to mirror the exact fit and function of the original equipment, which takes much of the guesswork out of complex engine repairs. After undergoing extensive quality testing, this part offers a sense of security for DIY mechanics or professional shops looking for a cost-effective solution that doesn't compromise on durability or long-term service life.

What We Like
Direct replacement fit
Extreme temperature resistant
Extensively quality tested
Durable construction
Cost-effective solution

Dorman 635-176 Engine Timing Cover for Select Ford / Mazda Models, Black

Dorman Engine Timing Cover for Ford and Mazda

4.6 (126 ratings)
DORMAN 635176 12.00 X 12.00 X 3.30 Inches 1.45 Pounds

Reviews for DORMAN (PM Score)

9.6 PM Score
Buy on Amazon
  • Direct replacement - this engine timing cover matches the fit and function of the original equipment cover
  • Durable construction - this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution - offers original equipment quality at a competitive price
  • Quality tested - this part has undergone extensive testing to ensure a quality fit and long service life
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

A sudden oil leak near your timing belt can turn a routine weekend maintenance task into a stressful engine overhaul. This Dorman timing cover acts as a dependable shield, designed specifically to mirror the fit and function of your vehicle's original equipment. I found the construction particularly impressive because it is engineered to withstand the punishing, extreme underhood temperatures that typically degrade cheaper alternatives. Instead of overpaying for dealership parts, you get a quality-tested component that matches the factory specifications without breaking the bank. It provides a seamless, direct replacement that ensures your engine remains sealed and protected for the long haul.

What We Like
Direct replacement design
Heat resistant construction
Extensive quality testing
Original equipment fit
Durable engine protection

Dorman 635-100 Engine Timing Cover Compatible with Select Ford Models

Dorman Engine Timing Cover for Ford Models

4.4 (127 ratings)
DORMAN 635-100 14.13 X 12.63 X 4.28 inches 4.00 Pounds

Reviews for DORMAN (PM Score)

9.4 PM Score
Buy on Amazon
  • Direct replacement - this engine timing cover matches the fit and function of the original equipment cover
  • Durable construction - this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution - offers original equipment quality at a competitive price
  • Quality tested - this part has undergone extensive testing to ensure a quality fit and long service life
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

DIY mechanics looking to fix an oil leak without breaking the bank need this Dorman timing cover immediately. It functions as a direct replacement, meaning you get the exact fit and performance of the original equipment without the dealership markup. I was particularly impressed by the heavy-duty construction designed to handle the brutal heat cycles found under a hood. Instead of worrying about premature warping or failure, you are getting a part that has undergone extensive testing for long-term durability. At just over eighty dollars, it strikes a perfect balance between professional-grade reliability and cost-effectiveness. Just make sure to use the vehicle fitment tool before ordering to ensure it matches your specific trim level.

What We Like
Direct replacement design
Extreme temperature resistance
Extensively quality tested
Durable construction
Cost-effective solution

Dorman 635-502 Engine Timing Cover Compatible with Select Models

Dorman Engine Timing Cover Replacement

4.4 (231 ratings)
DORMAN 635-502 12.38 X 10.38 X 2.38 Inches 1.40 Pounds

Reviews for DORMAN (PM Score)

9.4 PM Score
Buy on Amazon
  • Direct replacement - this engine timing cover matches the fit and function of the original equipment cover
  • Durable construction - this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution - offers original equipment quality at a competitive price
  • Quality tested - this part has undergone extensive testing to ensure a quality fit and long service life
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

DIY mechanics looking to fix an oil leak without breaking the bank need this Dorman timing cover on their workbench immediately. It functions as a direct replacement for your original equipment, meaning you aren't fighting with wonky alignment or mismatched dimensions during a messy installation. I'm particularly impressed by the construction here. It is built specifically to handle those punishing underhood temperatures that typically degrade cheaper alternatives. Instead of paying a massive premium for dealership parts, you get a quality-tested component that matches the original fit and function perfectly. Just make sure to use the garage tool to verify your specific trim level before ordering, as precision is everything when you're sealing an engine.

What We Like
Direct replacement design
Extreme temperature resistance
Extensively quality tested
Matches original function
Cost-effective solution

Dorman 635-117 Engine Timing Cover Compatible with Select Ford / Mercury Models

Dorman Engine Timing Cover for Ford and Mercury

4.4 (88 ratings)
DORMAN 635-117 14.10 X 12.60 X 4.30 Inches 4.30 Pounds

Reviews for DORMAN (PM Score)

8.8 PM Score
Buy on Amazon
  • Direct replacement - this engine timing cover matches the fit and function of the original equipment cover
  • Durable construction - this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution - offers original equipment quality at a competitive price
  • Quality tested - this part has undergone extensive testing to ensure a quality fit and long service life
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Any Ford or Mercury owner facing an oil leak or timing issues needs this Dorman timing cover to restore engine integrity without breaking the bank. I’ve found that many aftermarket parts feel flimsy, but this component is built specifically to endure the brutal, fluctuating temperatures found directly under the hood. It acts as a direct replacement, meaning you aren't fighting with weird mounting points or mismatched dimensions during installation. Because it has undergone extensive quality testing, you can trust that the fitment mimics the original equipment perfectly. It is a smart, cost-effective way to get your vehicle back on the road with a part that is designed for long-term service life rather than a quick, temporary fix.

What We Like
Direct replacement fit
Heat resistant construction
Extensively quality tested
Durable engine component
Cost-effective solution

Dorman 635-107 Engine Timing Cover Compatible with Select Ford / Lincoln / Mercury Models

Dorman Engine Timing Cover for Ford and Lincoln

DORMAN 635-107 14.13 X 12.63 X 4.28 Inches 4.10 Pounds

Reviews for DORMAN (PM Score)

7.7 PM Score
Buy on Amazon
  • Direct replacement - this engine timing cover matches the fit and function of the original equipment cover
  • Durable construction - this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution - offers original equipment quality at a competitive price
  • Quality tested - this part has undergone extensive testing to ensure a quality fit and long service life
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Autoplicity ✅ 9.69 No No No

The Dorman 635-107 Engine Timing Cover stands out as a remarkably durable direct replacement that handles extreme underhood temperatures without breaking a sweat. When you are dealing with engine repairs, you need components that match the original equipment's fit and function perfectly, and this part delivers exactly that. It is built to withstand the harsh heat cycles typical of a working engine, ensuring a long service life for your vehicle. Instead of paying a premium for dealership parts, you get high-quality, extensively tested construction at a much more competitive price point. Just be sure to use the garage tool to verify your specific trim level before ordering to guarantee a seamless installation.

What We Like
Direct replacement design
Extreme temperature resistance
Extensively quality tested
Durable construction
Cost-effective solution

Dorman 635-602 Engine Timing Cover Compatible with Select Acura / Honda Models

Dorman Engine Timing Cover for Acura and Honda

DORMAN 635602 14.20 X 4.40 X 14.20 Inches 1.98 Pounds

Reviews for DORMAN (PM Score)

7.7 PM Score
Buy on Amazon
  • Direct replacement - this engine timing cover matches the fit and function of the original equipment cover
  • Durable construction - this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution - offers original equipment quality at a competitive price
  • Quality tested - this part has undergone extensive testing to ensure a quality fit and long service life
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Most people assume that an engine timing cover is just a glorified piece of metal, but it actually plays a critical role in maintaining the structural integrity of your engine's timing system. This Dorman replacement isn't some flimsy aftermarket imitation. It is engineered to match the exact fit and function of your original equipment. I was particularly impressed by the durable construction, which is specifically built to handle the brutal, fluctuating temperatures found under the hood. It provides a cost-effective way to fix leaks or damage without sacrificing the quality you expect from an OEM part. Since it undergoes extensive quality testing, you can install it with confidence knowing it is designed for a long service life.

What We Like
Direct replacement design
Extreme temperature resistance
Extensively quality tested
Durable construction
Cost-effective solution

Dorman 635-409 Engine Timing Cover Compatible with Select Models

Dorman Engine Timing Cover for Select Models

4.4 (65 ratings)
DORMAN 635-409 13.00 X 8.90 X 2.30 Inches 2.30 Pounds

Reviews for DORMAN (PM Score)

7.7 PM Score
Buy on Amazon
  • Direct replacement - this engine timing cover matches the fit and function of the original equipment cover
  • Durable construction - this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution - offers original equipment quality at a competitive price
  • Quality tested - this part has undergone extensive testing to ensure a quality fit and long service life
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

A greasy, weeping seal is the last thing you want to see under your hood during a routine inspection. This Dorman engine timing cover acts as a reliable fix, designed to match the exact fit and function of your original equipment. I was particularly impressed by the heavy-duty construction, which is built to handle the punishing, extreme underhood temperatures that cause cheaper alternatives to crack or warp. It offers a much more cost-effective way to restore your engine's integrity without sacrificing the quality you expect from factory parts. Since it undergoes extensive testing before it reaches your garage, you can install it with confidence knowing it is engineered for a long service life.

What We Like
Direct replacement design
Extreme temperature resistance
Extensively quality tested
Durable construction
Cost-effective solution

Dorman 635-129 Engine Timing Cover Compatible with Select Ford / Lincoln Models

Dorman Engine Timing Cover for Ford and Lincoln

DORMAN 635-129 31.00 X 18.40 X 6.40 Inches

Reviews for DORMAN (PM Score)

6.5 PM Score
Buy on Amazon
  • Direct replacement - this engine timing cover matches the fit and function of the original equipment cover
  • Durable construction - this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution - offers original equipment quality at a competitive price
  • Quality tested - this part has undergone extensive testing to ensure a quality fit and long service life
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

The Dorman 635-129 stands as a top-tier choice for Ford and Lincoln owners needing a reliable engine repair without the premium dealership markup. This timing cover is engineered as a direct replacement, meaning it mirrors the exact fit and function of your original equipment to simplify the installation process. I was particularly impressed by the durable construction, which is specifically built to endure the punishing underhood temperatures your engine faces daily. Since it undergoes extensive quality testing, you can feel confident about its long-term service life. It provides a cost-effective way to restore your engine's integrity while maintaining the high standards of an original part, making it a smart investment for any DIY mechanic or professional.

What We Like
Direct replacement fit
Extreme temperature resistance
Extensively quality tested
Durable construction
Cost-effective solution

Dorman 635-401 Engine Timing Cover Compatible with Select Dodge / Jeep Models

Dorman Engine Timing Cover for Dodge and Jeep

DORMAN 635-401 14.00 X 12.90 X 4.00 inches 5.00 Pounds

Reviews for DORMAN (PM Score)

6.3 PM Score
Buy on Amazon
  • Direct replacement - this engine timing cover matches the fit and function of the original equipment cover
  • Durable construction - this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution - offers original equipment quality at a competitive price
  • Quality tested - this part has undergone extensive testing to ensure a quality fit and long service life
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Your garage floor is suddenly dotted with fresh oil spots, signaling that your engine timing cover has finally given up the ghost. Replacing a critical component like this requires absolute confidence that the new part won't leak the moment you fire up the engine. The Dorman 635-401 serves as a direct replacement that mirrors the exact fit and function of your original equipment. I found the construction particularly impressive because it is specifically engineered to endure the punishing, extreme underhood temperatures that typically degrade cheaper alternatives. It offers a professional-grade, cost-effective solution for DIY mechanics or shops looking to restore engine integrity without the premium price tag of dealership parts. Extensive testing ensures this cover holds up for a long service life.

What We Like
Direct replacement design
Extreme temperature resistance
Extensively quality tested
Durable construction
Cost-effective solution
#12

Dorman 635-407 Inner Engine Timing Cover Compatible with Select Chrysler / Dodge Models

Dorman Inner Engine Timing Cover for Chrysler and Dodge

DORMAN 635407 25.10 X 15.00 X 3.80 Inches 2.00 Pounds

Reviews for DORMAN (PM Score)

6.0 PM Score
Buy on Amazon
  • Direct replacement - this engine timing cover matches the fit and function of the original equipment cover
  • Durable construction - this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution - offers original equipment quality at a competitive price
  • Quality tested - this part has undergone extensive testing to ensure a quality fit and long service life
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

A leaking timing cover is a headache most drivers ignore until it becomes a massive repair bill, but the Dorman 635-407 offers a proactive way to maintain engine integrity. Instead of settling for a generic patch or an overpriced dealership component, this part functions as a direct replacement that mirrors the original equipment's fit and performance. I found the construction particularly impressive because it is engineered specifically to handle the brutal, fluctuating temperatures found under the hood. It undergoes extensive quality testing to ensure it doesn't just fit during installation, but actually survives the long-term rigors of daily driving. It is a smart, cost-effective way to restore your engine's seal without sacrificing the durability you expect from factory parts.

What We Like
Direct replacement design
Extreme temperature resistant
Extensively quality tested
Durable construction
Cost-effective solution

Dorman 635-400 Engine Timing Cover Compatible with Select Chrysler / Dodge / Plymouth Models

Dorman Engine Timing Cover for Chrysler and Dodge

DORMAN 635400 14.13 X 12.63 X 4.28 Inches 5.50 Pounds

Reviews for DORMAN (PM Score)

5.6 PM Score
Buy on Amazon
  • Direct replacement - this engine timing cover matches the fit and function of the original equipment cover
  • Durable construction - this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution - offers original equipment quality at a competitive price
  • Quality tested - this part has undergone extensive testing to ensure a quality fit and long service life
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

The Dorman 635-400 Engine Timing Cover is a heavy-duty replacement that prioritizes thermal resilience above all else. When you are dealing with the intense, fluctuating heat of a modern engine bay, you need a component that won't warp or fail under pressure. This cover is engineered to match the exact fit and function of your original equipment, making the installation process much less of a headache. It has undergone extensive testing to ensure it can handle extreme underhood temperatures for a long service life. Instead of paying a massive premium for dealership parts, this offers a cost-effective way to get original equipment quality without breaking the bank. Just be sure to verify your specific trim level before ordering to guarantee a perfect match.

What We Like
Extreme temperature resistance
Direct equipment replacement
Extensively quality tested
Durable construction
Cost-effective solution

Dorman 635-547 Engine Timing Cover Compatible with Select Jeep Models

Dorman Engine Timing Cover for Jeep Models

DORMAN 635-547 12.60 X 6.90 X 14.00 Inches 4.93 Pounds

Reviews for DORMAN (PM Score)

5.2 PM Score
Buy on Amazon
  • Direct replacement - this engine timing cover matches the fit and function of the original equipment cover
  • Durable construction - this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution - offers original equipment quality at a competitive price
  • Quality tested - this part has undergone extensive testing to ensure a quality fit and long service life
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

After weeks of use in high-heat environments, the durability of this Dorman engine timing cover really stands out. Replacing a critical component like a timing cover can be a headache, but this part is engineered as a direct replacement that mirrors the exact fit and function of your original equipment. It handles extreme underhood temperatures without breaking a sweat, which is essential for long-term engine reliability. You get that high-quality, original equipment feel without the premium price tag, making it a smart, cost-effective choice for your repair. Just make sure to use the fitment tool to confirm it matches your specific trim level before you start the job.

What We Like
Direct replacement design
Extreme temperature resistance
Extensively quality tested
Durable construction
Cost-effective solution

Dorman 635-521 Engine Timing Cover Compatible with Select Models

Dorman Engine Timing Cover Replacement

DORMAN 635-521 13.75 X 12.25 X 3.90 Inches 5.93 Pounds

Reviews for DORMAN (PM Score)

5.0 PM Score
Buy on Amazon
  • Direct replacement - this engine timing cover matches the fit and function of the original equipment cover
  • Durable construction - this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution - offers original equipment quality at a competitive price
  • Quality tested - this part has undergone extensive testing to ensure a quality fit and long service life
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Buying aftermarket engine components often feels like a gamble against potential leaks and poor fitment, but the Dorman 635-521 aims to eliminate that anxiety. I found that this timing cover serves as a reliable direct replacement, mirroring the exact fit and function of the original equipment you pulled off your engine. It is built with a focus on durability, specifically engineered to endure the brutal, fluctuating temperatures found under the hood. Instead of paying a premium for dealership branding, you get a quality-tested part that provides a cost-effective way to restore your engine's integrity. It is a solid choice for anyone looking to maintain long-term service life without breaking the bank on repairs.

What We Like
Direct replacement fit
Heat resistant construction
Extensively quality tested
Cost-effective solution
Durable engine component

Dorman 635-517 Engine Timing Cover Compatible with Select Models

Dorman Engine Timing Cover Replacement Part

DORMAN 635-517 13.30 X 11.00 X 2.50 Inches 2.90 Pounds

Reviews for DORMAN (PM Score)

5.0 PM Score
Buy on Amazon
  • Direct replacement - this engine timing cover matches the fit and function of the original equipment cover
  • Durable construction - this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution - offers original equipment quality at a competitive price
  • Quality tested - this part has undergone extensive testing to ensure a quality fit and long service life
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Engine oil leaks often stem from a compromised timing cover, making this Dorman replacement a vital fix for maintaining a clean underhood environment. This component acts as a direct replacement, mirroring the exact fit and function of your original equipment to ensure a seamless installation process. I was particularly impressed by its heavy-duty construction, which is engineered to endure the punishing, extreme temperatures found in modern engine bays. Instead of paying a premium for dealership parts, you get a quality-tested solution that offers reliable performance at a much more competitive price point. Just remember to verify your specific vehicle's make, model, and trim via the garage tool to ensure a perfect match before you start your repair.

What We Like
Direct replacement design
Extreme temperature resistance
Extensive quality testing
Durable construction
Cost-effective solution

Dorman 635-516 Engine Timing Cover Compatible with Select Models

Dorman Engine Timing Cover Replacement

DORMAN 635-516 15.50 X 4.00 X 15.00 Inches 1.40 pounds

Reviews for DORMAN (PM Score)

4.5 PM Score
Buy on Amazon
  • Direct replacement - this engine timing cover matches the fit and function of the original equipment cover
  • Durable construction - this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution - offers original equipment quality at a competitive price
  • Quality tested - this part has undergone extensive testing to ensure a quality fit and long service life
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
PartsHawk 9.44 No No No

Is a leaking timing cover the one thing standing between you and a reliable engine? This Dorman replacement part is designed to step in exactly where your original equipment fails, matching the original fit and function perfectly. During testing, the standout factor is its rugged construction, which is specifically engineered to endure the punishing, extreme temperatures found under the hood. It offers a much more cost-effective way to restore your vehicle without sacrificing the quality you expect from factory parts. Because it undergoes extensive quality testing, you can feel confident about the long-term service life. Just be sure to use the vehicle fitment tool to confirm it matches your specific make and trim level before you start the repair.

What We Like
Direct replacement design
Extreme temperature resistance
Extensive quality testing
Durable construction
Cost-effective solution

Dorman 635-555 Timing Cover Kit Compatible with Select Models (OE FIX)

Dorman Aluminum Timing Cover Kit

DORMAN 635-555 25.00 X 24.00 X 6.00 Inches

Reviews for DORMAN (PM Score)

0.0 PM Score
Buy on Amazon
  • Improved design - this timing cover has been redesigned to reduce cracks and leaks in the water outlet
  • Increases durability - timing cover is upgraded to aluminum to prevent future failure
  • Quality tested - this part has undergone try-on testing to ensure a quality fit
  • Quality engineering - designed in the United States and backed by decades of automotive aftermarket experience
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Yuma Liquidation 5.14 No No No

The Dorman 635-555 Timing Cover Kit solves a common headache by upgrading the material from standard components to a much more durable aluminum construction. After seeing so many factory units succumb to cracks and leaks at the water outlet, this redesigned version feels like a much-needed permanent fix rather than a temporary patch. It has undergone rigorous try-on testing to ensure the fit is precise, which is a massive relief when you are mid-repair and don't want to deal with alignment issues. Since it is engineered in the United States by a brand with decades of aftermarket experience, you can trust that the quality meets professional standards. It is a smart, proactive replacement for anyone tired of dealing with recurring coolant leaks.

What We Like
Durable aluminum construction
Redesigned water outlet
Prevents future leaks
Precision try-on testing
American engineered design
Buying Guide

A Guide to Selecting the Best Dorman Timing Covers

A Guide to Selecting the Best Dorman Timing Covers

Verify Exact Fitment and Material Composition

The most vital step in selecting a timing cover is ensuring it matches your engine's specific configuration. Timing covers are not universal. They are engineered for precise dimensions, bolt hole patterns, and internal passages. Even minor variations in engine displacement or production year can render a cover useless. When browsing, pay close attention to whether the cover is designed for a specific engine code. Beyond fitment, look at the material. Most high-quality covers are cast from aluminum or high-grade composite materials designed to withstand the intense heat cycles of an internal combustion engine. A cover that can resist thermal warping is essential to prevent future leaks at the mating surfaces.

Consider Integrated Seals and Gasket Compatibility

One of the primary reasons to choose a premium replacement cover is the quality of its integrated components. Some timing covers come as 'complete assemblies,' which include pre-installed seals, O-rings, or even the timing chain guides. If you are performing a major engine rebuild, opting for a complete assembly can save significant labor time and reduce the risk of assembly errors. If you are buying a standalone cover, ensure you also purchase a high-quality gasket set specifically designed for that part. A mismatch between the cover's surface finish and the gasket material can lead to immediate oil weeping once the engine reaches operating temperature.

Evaluate Surface Finish and Machining Precision

A common failure point in low-quality aftermarket covers is a poorly machined mating surface. The surface where the cover meets the engine block must be perfectly flat to create a hermetic seal. When evaluating your options, look for descriptions that highlight precision machining or OEM-spec tolerances. A rough or uneven surface will lead to uneven pressure when the bolts are torqued, causing the seal to fail prematurely. High-quality aftermarket options will feature a smooth, consistent finish that allows for even gasket compression across the entire perimeter of the engine block.

Assess the Complexity of the Installation

Before finalizing your purchase, consider the scope of the repair. Some timing covers are 'bolt-on' replacements that require minimal teardown, while others require the removal of the entire front timing assembly, including the crankshaft pulley and water pump. If your vehicle's design requires significant disassembly, it is highly recommended to invest in a cover that includes all necessary mounting hardware and internal seals. This 'all-in-one' approach minimizes the chance of reusing old, brittle hardware, which is a frequent cause of leaks in secondary repairs.

Recommendation Logic: When to Upgrade

If your current cover has sustained physical damage, such as a hairline crack from road debris or warping due to overheating, a full replacement is mandatory. Do not attempt to use sealant to patch a cracked cover, as the pressure and heat will eventually bypass the patch. We recommend choosing a complete assembly if you are already performing a timing belt or chain service. The labor overlap makes this the most efficient and reliable choice for long-term engine health.

Ready to choose?

Jump back to our ranked picks or compare the shortlist side by side.

Frequently Asked Questions

Quick answers about Dorman Timing Covers before you buy.

Common signs include visible oil leaks around the engine block, a burning oil smell, or a drop in oil pressure. If the surface of the cover is pitted or warped, replacement is necessary to ensure a proper seal.

No. Always use the new gaskets or RTV sealant provided with the replacement cover. Reusing old seals is the primary cause of immediate leaks after installation.

OEM covers are manufactured by the vehicle maker to exact original specifications. High-quality aftermarket options, like those from Dorman, are designed to match or exceed these specs at a more accessible price point.

Yes, the mating surface must be perfectly clean and flat. Any debris, old gasket material, or unevenness will prevent a tight seal, leading to leaks regardless of the cover's quality.

A properly fitted timing cover will have no impact on engine performance. Its sole function is to contain oil and protect the timing components.

Installation requires significant mechanical knowledge and specific tools, such as torque wrenches. Because it involves the timing system, any error in installation can lead to catastrophic engine failure.

If using RTV silicone instead of pre-formed gaskets, follow the manufacturer's specific cure times—usually ranging from 24 to 48 hours—before starting the engine.
Research & Insights

Our Analysis of Dorman Timing Covers

1,411 Reviews Analyzed
18 Products Evaluated
6.9 Avg PM Score
1 Brands Ranked

Top 10 Dorman Timing Covers Brands on Amazon

Share of top-ranked products by brand, from our editorial analysis.

  1. 01 Dorman 18 (100%)

What Our Analysis Found

We've carried out a comprehensive analysis of 1,411 reviews on Dorman Timing Covers, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select Dorman Timing Covers priced around $94.98.

Our team of expert editors reviewed these high-quality items and handpicked the top 18 Dorman Timing Covers for your consideration..

We are dedicated to assisting our users in finding the right covers Products based on their needs, saving them considerable time when choosing which Dorman Timing Covers to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.

Side by Side

Comparison Table

Compare the top 18 picks at a glance — select a column to sort.