Best Fel Pro Main Seals in 2026
Daisy
Last Updated: Feb 9, 2026
Daisy
Last Updated: Feb 9, 2026
* 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.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| GWA Auto Parts | 9.89 | ✅ | ✅ | ✅ |
Replacement Axle Shaft Seal Installer - This special tool allows you to install and insert the axle shaft seal of your vehicle in its proper depth, distance and position by driving it in with a rubber mallet or hammer onto the wheel knuckle assembly. This is applicable for your 1999 F-250, 2000 F-350, 2001 F-450, 2002 F-550 and 2003 Excursion 4x4 vehicle.
Compatible Replacement for Ford Vehicles - 2000, 2001 , 2002, 2003, 2004 Excursion 4x4 | 98, 99, 00, 01, 02, 03, 04 F250 | 98, 99, 00, 01, 02, 03, 04 F350 | 98, 99, 00, 01, 02, 03, 04 F450 | 1998, 1999, 2000, 2001, 2002, 2003, 2004 F550 |. Replacement of the axle shaft seal is necessary after removal when servicing the front-end parts like the u-joints to avoid having issues when engaging 4WD. Installation can be tricky and with a proper tool like this, it will be perfect everytime.
Replaces Part# 6695 commonly found on popular vehicles including year models 1998, 1999, 2000, 2001, 2002, 2003, 2004. This axle shaft seal tool is constructed with high quality steel, black finished and designed with handle and the correct ridges compatible with Ford vehicles. This is applicable to your Excursion 4x4, F-250, F-350, F450 and F-550 vehicles only.
OEM Fit, Quality, Finish - While this is not a genuine OEM part, it is a direct replacement and will look, fit and work exactly like the factory part. Vacuum seals delicately works with the axle shaft and this axle shaft seal tool is produced to ensure proper installation to the wheel knuckle assembly, prevents damages on the new seal, saves time and a lot easier.
Lifetime Warranty - This vacuum seal installer comes complete with a lifetime warranty. If the part ever fails on your 01 Excursion, 2003 F250, 99 F350, 04 F450 or 1998 F550 simply contact us for a replacement. Save time and money off of dealer prices by purchasing this part and taking advantage of our warranty.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Sunluway Direct | 9.89 | ✅ | ✅ | ✅ |
FITMENT: Fit for Ford 2005-2019 F-250 F-350 4X4s having the vacuum-operated front axle. Similar to OTC 6697
HIGH QUALITY: Machined from heavy duty steel with excellent mechanical and physical properties, this seal installer is good in corrosion resistance and durability
APPLICATION: Installing the seal onto the axle shaft and into the wheel knuckle, this tool makes seal replacement much easier
A MUST-HAVE TOOL: Prevents front hub vacuum leaks that would cause the 4WD not engage
100% SATISFACTION: If you're not 100% satisfied with our Oil Seal Installer Tool, simply return it for a full refund in 30 days. Premium Support & 12-Month Warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Bird's wings | 9.88 | ✅ | ✅ | ✅ |
303-770 Rear Main Seal Installer – Use for installation & removal of crankshaft rear seal wear ring fit for Ford 4.5L, 6.0L & 6.4L Powerstroke Diesel Engine, Low Cab Forward, F-Super Duty 250-550, E-Series.
303-1259 Front Seal Installer – Use to install crankshaft front seal/ wear sleeve fit for Ford 6.4L Powerstroke Engines, include F-250/350/450/550;Super Duty 2008, 2009, 2010; 365-MaxxForce7. This tool is needed to prevent your seal from leaking.
Superior Quality – Constructed from high standard forged steel for strength, durability, and longevity; coated with black oxide finish for resistance to rust and corrosion. Never worry wear or damage to the tool!
Direct Replacement – Replace ZTSE4515C ZTSE4515 303-770 and 303-1259 ZTSE4691. Meet the OE quality and performance, makes your work easier while saving money.
100% Satisfaction Guarantee – If you're not 100% satisfied with your tools, simply return it for a full refund in 30 days, guarantee with 12 months’ warranty.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Bird's wings | 9.88 | ✅ | ✅ | ✅ |
APPLICATION – Fit for Ford 4.5L, 6.0L & 6.4L Powerstroke Diesel Engine, Low Cab Forward, F-Super Duty 250-550, E-Series.（Specific application reference as following）.
FUNCTION -- Use for installation & removal of crankshaft rear seal wear ring for your Ford. Preventing your seal from leaking.
SUPERIOR MATERIAL -- Constructed from high standard forged steel for strength, durability, and longevity; coated with black oxide finish for resistance to rust and corrosion. Never worry wear or damage to the tool!
DIRECT REPLACEMENT-- Replace ZTSE4515C ZTSE4515 303-770. This rear main seal installer tool makes this job easier!
100 SATISFACTION GUARANTEE -- We are responsible for our products and service. If you're not 100% satisfied with this Tool, simply return it for a full refund in 30 days, guarantee with 1-year warranty.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Truck Repair US | 9.90 | ✅ | ✅ | ✅ |
【High Quality Material】Made from quality carbon steel, is with great strength, corrosion resistance, anti-rust, impact resistance, wear resistance and durable.
【303-770 Crankshaft Rear Main Seal Installer】Used for installation of crankshaft rear seal wear ring for 4.5L,6.0L,6.4L power stroke.
【303-1259 Crankshaft Front Seal Installer】Used for installing crankshaft front seal/wear sleeve for Ford 6.4L power stroke engines F-series.
【Benefit】When you install crankshaft rear seal or crankshaft front seal, this combination set can help you install the seal properly and prevent your seal from leaking.
【Application】❶Crankshaft Front Seal Installer fits for Ford 6.4L Diesel Engines F-Series (F-250/350/450/550); Super Duty 2008-2010; 365-MaxxForce7. ❷Rear Main Seal Installer fits for Ford 2003-2010 F-250, F350, F-450, F-550, Excursion 2004-2007 F-650, F-750 2004-2010 E150, E-250, E-350, E-450, and Low Cab Forward 4.5L, 6.0L, 6.4L and VT365-MaxxForce7 Navistar International.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Sunluway Direct | 9.89 | ✅ | ✅ | ✅ |
Fitment: Perfectly fit for Ford 4.5L, 6.0L, 6.4L Powerstroke, F-250, F350, F-450, F-550, F-650, F-750, Low Cab Forward, E-Series, Excursion and VT 365-MaxxForce7
High Quality: Machined from heavy duty steel with excellent mechanical and physical properties, this Installer Tool is good in corrosion resistance and durability
Application: Used for installation and removal of Rear Crankshaft Seal & Wear Ring of Ford, it credibly prevents the seal from leaking
Features: Simple to use, impossible to mess up, and well built. Recommend to anyone in the service industry
100% SATISFACTION GUARANTEE: If you're not 100% satisfied with Sunluway Rear Main Seal Installer Tool, simply return it for a full refund in 30 days. Premium Support & 12-Month Warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Sunluway Direct | 9.89 | ✅ | ✅ | ✅ |
Crankshaft Front Seal Installer: Fits for Ford 6.4L Diesel F-250/350/450/550, Super Duty 2008, 2009, 2010 and 365-MaxxForce7 (NOT fit for Ford 4.5L, 6.0L Powerstroke Diesel)
Rear Main Seal Installer: Fits for Ford 4.5L, 6.0L, 6.4L Powerstroke, F-250, F350, F-450, F-550, F-650, F-750, Low Cab Forward, E-Series, Excursion and VT 365-MaxxForce7
High Quality: Machined from heavy duty steel with excellent mechanical and physical properties, this Installer Tool Set is good in corrosion resistance and durability
Application: Used for installation and removal of Rear Crankshaft Seal & Wear Ring of Ford, it credibly prevents the seal from leaking
100% SATISFACTION GUARANTEE: Our tool set is simple to use, impossible to mess up, and well built. If you're not 100% satisfied with Sunluway Rear Main Seal Installer Tool, simply return it for a full refund in 30 days. Premium Support & 12-Month Warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| SUNSUN international | 7.90 | ✅ | ✅ | ✅ |
【APPLICATION】: Fits for 2011-2019 Ford Super Duty F-250, F-350, F-450, and F-550 equipped with 6.7L Power Stroke Diesel model; 2016-2019 Ford Super Duty F-650/750 equipped with 6.7L Power Stroke Diesel model.
【MATERIAL】: Constructed from high standard forged steel for strength, durability, and longevity; coated with black oxide finish for resistance to rust and corrosion. Never worry wear or damage to the tool!
【FUNCTION】: This rear main seal remover tool can help you remove the crankshaft seal effortlessly. Perfectly remove the crank seal without any possible damage and prevent your seal from leaking.
【EASY WORK】: Replace OE Part Number ST-148 303-1513, professional-designed tool efficiently make your job easier and quicker, saving your time and money.
【Satisfaction Guarantee】: If you're not 100% satisfied with our products, simply return it in 30 days for a full refund, with unconditional refund guarantee and 12-month warranty.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| luang yutl | 9.64 | ❌ | ❌ | ❌ |
【Material】Made from quality carbon steel, is with great strength, corrosion resistance, anti-rust, impact resistance, wear resistance and durable.
【303-770 Crankshaft Rear Main Seal Installer】Used for installation of crankshaft rear seal wear ring for 4.5L,6.0L,6.4L power stroke.
【Rear Main Seal Installer】 Fits for Ford 4.5L, 6.0L, 6.4L Powerstroke, F-250, F350, F-450, F-550, F-650, F-750, Low Cab Forward, E-Series, Excursion and VT 365-MaxxForce7
【Application】 Used for installation and removal of Rear Crankshaft Seal & Wear Ring of Ford, it credibly prevents the seal from leaking
【Service quality】100% service guarantee, if you encounter any problems, please contact us in time, we will deal with you as soon as possible.
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Sunluway | 3 |
| E-Cowlboy | 2 |
| Aa Ignition | 1 |
| Bonbo | 1 |
| Castnoo | 1 |
| Dearchan | 1 |
We've carried out a comprehensive analysis of 771 reviews on main seals, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select main seals priced around $122.86, with top brands including and
Our team of expert editors reviewed these high-quality items and handpicked the top 9 main seals for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include and .
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