Best Gates Automotive Replacement Engine Timing Parts in 2026

Daisy
Last Updated: Jul 19, 2026

At a Glance: Our Top Picks for Gates Automotive Replacement Engine Timing Parts

ACDelco Gold 38158 Drive Belt Tensioner Assembly with Pulley
#TOP1
Acdelco Gold 38158 Drive Belt Tensioner Assembly With
9.8
PM SCORE
ACDelco Gold 38103 Drive Belt Tensioner Assembly with Pulley
#TOP2
Acdelco Gold 38103 Drive Belt Tensioner Assembly With
9.8
PM SCORE
GM Genuine Parts 12605175 Drive Belt Tensioner
#TOP3
Gm Genuine Parts 12605175 Drive Belt Tensioner
8.7
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Gates Automotive Replacement Engine Timing Parts of 2026

Market Overview
Gates Automotive Replacement Engine Timing Parts Reviewed
  • Reviews Analyzed: 3553 Items
  • PM Avg. Rating: 6.0 / 10
19 Products Evaluated
  • Highest Price: $210.29
  • Lowest Price: $28.92
  • Avg. Price: $74.40

Acdelco Gold 38158 Drive Belt Tensioner Assembly With Pulley

ACDELCO
38158
8.80 X 4.80 X 3.60 Inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Acdelco Gold 38103 Drive Belt Tensioner Assembly With Pulley

ACDELCO
38103
8.80 X 4.80 X 3.60 Inches
1.52 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

#TOP3

Gm Genuine Parts 12605175 Drive Belt Tensioner

GENERAL MOTORS
12605175
8.70 X 4.80 X 3.00 Inches
1.52 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Helps keep drive belt at correct tension to help maintain proper function

Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)

GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.

GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle

GM regularly updates production and service part designs to integrate new materials and technologies

Acdelco Gold 39112 Drive Belt Tensioner Assembly With Pulley

ACDELCO
39112
6.30 X 6.30 X 4.60 Inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Acdelco Gm Original Equipment 12560345 Air Conditioning Drive Belt Tensioner

ACDELCO
12560345
4.80 X 3.90 X 2.60 Inches
0.93 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Restores accessory drive belt system, eliminate noisy tensioner pulley

GM-recommended replacement part for your GM vehicle’s original factory component

Offering the quality, reliability, and durability of GM OE

Manufactured to GM OE specification for fit, form, and function

Gm Genuine Parts 12577655 Air Conditioning Compressor And Power Steering Pump Belt Tensioner

GM
12577655
8.70 X 4.80 X 3.00 Inches
1.76 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)

GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle

Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type

GM regularly updates production and service part designs to integrate new materials and technologies

#TOP7

Acdelco Gm Original Equipment 12595289 Air Conditioning Drive Belt Tensioner

ACDELCO
12595289
6.20 X 3.20 X 3.10 Inches
1.03 pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Restores accessory drive belt system, eliminate noisy tensioner pulley

GM-recommended replacement part for your GM vehicle’s original factory component

Offering the quality, reliability, and durability of GM OE

Manufactured to GM OE specification for fit, form, and function

Acdelco Gold Ack060841K1 Serpentine Drive Belt Tensioner Kit

ACDELCO
ACK060841K1
8.00 X 10.00 X 6.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
BarMac Automotive 9.05

Features

Does the job right the first time and reduces comebacks by always replacing the serpentine belt, idlers, and tensioners at the same time

Has a lineup of parts that include 78 kits covering more than 1,300 vehicle applications for both import and domestic applications

Includes a serpentine belt, idler(s), tensioner(s), and supporting hardware with detailed installation instructions

Professional, premium aftermarket replacement

Provides the performance and dependability you expect from ACDelco

Gm Genuine Parts 12563084 Drive Belt Tensioner

GM
12563084
11.25 X 4.75 X 4.75 Inches
2.06 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Helps keep drive belt at correct tension to help maintain proper function

Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)

GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.

GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle

GM regularly updates production and service part designs to integrate new materials and technologies

Acdelco Gold 39084 Drive Belt Tensioner Assembly With Pulley

ACDELCO
39084
6.00 X 6.00 X 5.00 Inches
2.45 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Acdelco Gold 38115 Drive Belt Tensioner Assembly With Pulley

ACDELCO
38115
8.80 X 4.80 X 3.60 Inches
1.90 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Dayco 89611 Belt Tensioner

DAYCO
89611
16.31 X 16.06 X 8.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Hires Automotive 9.70

Features

This Dayco 89611 Accessory Drive Belt Tensioner Assembly replaces Gates 38404, ACDelco 38404, CARQUEST 38404, BMW 11.28.7.509.476-03, Duralast 305611, Goodyear 49387, NAPA 38404, OEM parts and is

REDUCE VIBRATIONS: Between smooth belt routing and accurate tensioning, the tensioner assembly assists in vehicle air conditioning compressors, alternators, power steering pumps, water pumps, and other various engine accessories that are critical to vehicle performance. This heavy-duty, durable Drive Belt Tensioner Assembly is an exact OE replacement designed to reduce wear, friction, vibration, and harshness

EXTEND SERVICE LIFE: These assemblies feature smoother surfaces and tighter dimensional tolerances to prolong belt life. Lubricated bearings and high temperature seals assure peak performance. Built to last, this Tensioner Assembly has superior tolerance to dirt, salt, chemicals, and other under-the-hood grime

RELY ON QUALITY AUTO PARTS: Dayco's essential engine parts and drive system solutions offer engine economy, efficiency, and exceptional performance while minimizing noise, vibration, and harshness. They strive to be first-to-market with built-to-last products such as high-quality engine timing belts, serpentine belts, drive belts, belt tensioners, and more

TRUST IN DAYCO: Dayco is a global leader in the automotive parts manufacturing industry and has built a reputation for high-quality Dayco belts since 1905. The supplier is guided by their primary business strategy to anticipate and satisfy the needs of their customers through reliable products and services

Acdelco Gold 38174 Drive Belt Tensioner Assembly With Pulley

ACDELCO
38174
8.80 X 4.80 X 3.60 inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Acdelco Gold 38179 Drive Belt Tensioner Assembly With Pulley

ACDELCO
38179
8.80 X 4.80 X 3.60 Inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Acdelco Gold 39074 Drive Belt Tensioner Assembly With Pulley

ACDELCO
39074
6.30 X 6.30 X 4.60 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Acdelco Gold 39191 Drive Belt Tensioner Assembly With Pulley

ACDELCO
39191
6.20 X 6.20 X 4.50 Inches
1.75 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Acdelco Gold 38184 Drive Belt Tensioner Assembly With Pulley

ACDELCO
38184
8.80 X 4.80 X 3.60 Inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Autoplicity ✅ 9.71

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Acdelco Gold 39370 Drive Belt Tensioner Assembly With Pulley

ACDELCO
39370
6.20 X 6.20 X 4.50 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Acdelco Gold 39351 Drive Belt Tensioner Assembly With Pulley

ACDELCO
39351
6.00 X 6.00 X 5.00 Inches
1.31 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Shark Motorsports 6.05

Features

Designed to keep drive belt at proper tension

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Premium aftermarket replacement part

Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Top 10 automotive replacement engine timing parts Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Acdelco 15
Gm 2
Dayco 1
General Motors 1

Top 10 automotive replacement engine timing parts Brands Pie Chart


We've carried out a comprehensive analysis of 3,553 reviews on automotive replacement engine timing parts, using our selection criteria to identify the best options in the automotive tools & equipment. Our findings reveal that most customers typically select automotive replacement engine timing parts priced around $74.40, with top brands including yuesstloo, eccpp, gm, x autohaux, mopar, aisin, hyundai, philtop and scitoo and uro parts

Our team of expert editors reviewed these high-quality items and handpicked the top 19 automotive replacement engine timing parts for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the automotive tools & equipment category. These include hangzhou mt-tools co., ltd, qinchye, amazon.com, uxcell, gm ford chrysler jeep dodge ram oem parts, mtq inc, scitoo auto and autoplicity ✅ and mango s .

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