Are you looking for the best rear main seals to keep your engine leak-free? This guide offers a curated list of top picks, ensuring durability and performance for a worry-free driving experience.
A leaking rear main seal can cause major headaches for any car owner. It’s a crucial part that keeps your engine’s oil where it belongs. Finding the best rear main seal is key to ensuring your engine stays healthy and your car runs smoothly.
This guide will help you choose the right seal. We’ve looked at many options. Our goal is to make your choice easy.
We’ll explore top picks that offer durability and performance. Get ready to discover the perfect seal that will keep your engine protected and your driving worry-free.
Imagine the relief of knowing your engine is leak-free and running like new. This guide is your roadmap to achieving just that, making sure you can drive with confidence.
List of Top 10 Rear Main Seals
| Image | Title | Best For | Price |
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Dorman 635-518 Engine Rear Main Seal Cover Compatible with Select Models |
This Dorman 635-518 Engine Rear Main Seal Cover is perfect for car owners who need a reliable and durable fix for their vehicle’s rear main seal. It’s easy to install and built to last, making it ideal for DIY repairs or professional mechanics. |
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A-Premium Engine Rear Main Seal Cover Kit [OHV, 8Cyl 4.8 5.3 5.7 6.0 6.2 7.0L] Compatible with Chevy, GMC, Cadillac, Hummer, Isuzu, Pontiac, Saab & Buick, fits Express, Silverado, Sierra & More Models |
This A-Premium Engine Rear Main Seal Cover Kit is perfect for anyone who owns a Chevy, GMC, Cadillac, Hummer, Isuzu, Pontiac, Saab, or Buick vehicle. It’s ideal for models like the Express, Silverado, Sierra, and more, ensuring a perfect fit and reliable performance. |
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DNJ RM145A Rear Main Seal for 2007-2011 Chrysler, Dodge, Jeep, Volkswagen Grand Caravan, Routan, Town & Country 3.3L-3.8L V6 12V OHV 3778cc |
This DNJ RM145A Rear Main Seal is perfect for car owners who need a reliable replacement part. It’s ideal for 2007-2011 Chrysler, Dodge, Jeep, and Volkswagen models with 3.3L-3.8L V6 engines. |
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Engine Rear Main Seal Cover Kit with Gasket & Bolt Compatible with Cadillac Escalade, GMC Yukon Sierra, Chevy Suburban Silverado Tahoe Express 4.8 5.3 6.0 6.2L Replace# 635-518 12633579 12639250 |
This Engine Rear Main Seal Cover Kit is perfect for anyone who owns a Cadillac, GMC, or Chevy vehicle with a 4.8, 5.3, 6.0, or 6.2L engine. It’s easy to install and built to last, ensuring your car runs smoothly. |
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RADHLBNIU Rear Main Seal Kit Compatible with Chevy Tahoe Suburban Silverado Express Avalanche Cadillac Escalade GMC Yukon Sierra Savana 4.8L 5.3L 6.0L 6.2L Replaces# 635-518 12633579 12639250 |
This RADHLBNIU Rear Main Seal Kit is perfect for vehicle owners who need a reliable and durable solution for their Chevy, Cadillac, or GMC models. It’s ideal for those looking to replace worn-out parts and ensure a leak-free fit with high-quality materials. |
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FEL-PRO BS 40592 Rear Main Seal Set |
The FEL-PRO BS 40592 Rear Main Seal Set is perfect for Ford owners who need a reliable replacement part. It’s designed to fit specific Ford models, ensuring a perfect match for your vehicle. |
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Bar’s Leaks Rear Main Seal Repair, 16.9 oz |
Bar’s Leaks Rear Main Seal Repair is perfect for anyone with an oil leak. It’s easy to use and works fast to stop leaks in your engine. |
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BS40640 Rear Main Seal Kit for Chevy Silverado 1500 1997-2016 GM LS Engines 4.8L 5.3L 5.7L 6.0L 6.2L – Replacement Crankshaft Seal & Metal Gasket Set, Fits Tahoe, Suburban |
This BS40640 Rear Main Seal Kit is perfect for Chevy and GMC owners who need a reliable replacement for their GM LS engines. It fits many popular models like the Silverado, Tahoe, and Sierra, ensuring a tight seal and long-lasting performance. |
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FEL-PRO BS 40661 Rear Main Seal Set |
The FEL-PRO BS 40661 Rear Main Seal Set is perfect for car owners who need a reliable replacement part. It’s ideal for Toyota, Chevrolet, and Pontiac models listed, ensuring a perfect fit and trusted quality. |
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FEL-PRO BS 40694 Rear Main Seal Set |
This FEL-PRO BS 40694 Rear Main Seal Set is perfect for Nissan Altima owners who need a reliable replacement part for their engine’s crankshaft seal. It’s designed for a perfect fit and meets original equipment standards, ensuring unsurpassed quality for your vehicle. |
Detailed Reviews
Discover the top 10 Rear Main Seals carefully selected for quality, durability, and performance. Each product is expert-reviewed and backed by customer feedback, ensuring you find the perfect fit for your vehicle. Whether you need leak prevention, easy installation, or affordability, this guide has you covered—read on to make the best choice for your engine.
1. Dorman 635-518 Engine Rear Main Seal Cover Compatible with Select Models

The Dorman 635-518 Engine Rear Main Seal Cover is a direct replacement for select vehicle models. It comes with a new gasket, installation hardware, and an updated seal design for leak prevention.
This cover is made of strong die-cast aluminum. It fits exactly. It lasts a long time.
This kit is tested for quality and durability. Check your vehicle fit using the Amazon Confirmed Fit tool before buying.
| Pros | Cons |
|---|---|
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Perfect For:
This Dorman 635-518 Engine Rear Main Seal Cover is perfect for car owners who need a reliable and durable fix for their vehicle’s rear main seal. It’s easy to install and built to last, making it ideal for DIY repairs or professional mechanics.
Ready to Purchase?
2. A-Premium Engine Rear Main Seal Cover Kit [OHV, 8Cyl 4.8 5.3 5.7 6.0 6.2 7.0L] Compatible with Chevy, GMC, Cadillac, Hummer, Isuzu, Pontiac, Saab & Buick, fits Express, Silverado, Sierra & More Models
![A-Premium Engine Rear Main Seal Cover Kit [OHV, 8Cyl 4.8 5.3 5.7 6.0 6.2 7.0L] Compatible with Chevy, GMC, Cadillac, Hummer, Isuzu, Pontiac, Saab & Buick, fits Express, Silverado, Sierra & More Models](https://m.media-amazon.com/images/I/41gRkRB2CrL._SL500_.jpg)
Keep your engine running smoothly with the A-Premium Engine Rear Main Seal Cover Kit. This essential kit is designed for a wide range of vehicles, ensuring a perfect fit for your Chevy, GMC, Cadillac, and many more.
This kit includes critical seals for your engine. It’s built for durability and performance. Drive with confidence knowing your vehicle is protected.
| Pros | Cons |
|---|---|
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Perfect For:
This A-Premium Engine Rear Main Seal Cover Kit is perfect for anyone who owns a Chevy, GMC, Cadillac, Hummer, Isuzu, Pontiac, Saab, or Buick vehicle. It’s ideal for models like the Express, Silverado, Sierra, and more, ensuring a perfect fit and reliable performance.
Ready to Purchase?
3. DNJ RM145A Rear Main Seal for 2007-2011 Chrysler, Dodge, Jeep, Volkswagen Grand Caravan, Routan, Town & Country 3.3L-3.8L V6 12V OHV 3778cc

The DNJ RM145A Rear Main Seal is brand new and ready to install. It fits 2007-2011 Chrysler, Dodge, Jeep, and Volkswagen vehicles with 3.3L-3.8L V6 engines.
This seal is backed by a 1-year warranty and designed for durability. DNJ Engine Components is a trusted provider of high-quality engine parts.
Easy to install, long-lasting, and affordable. Keep your vehicle running smoothly with this reliable seal.
| Pros | Cons |
|---|---|
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Perfect For:
This DNJ RM145A Rear Main Seal is perfect for car owners who need a reliable replacement part. It’s ideal for 2007-2011 Chrysler, Dodge, Jeep, and Volkswagen models with 3.3L-3.8L V6 engines.
Ready to Purchase?
4. Engine Rear Main Seal Cover Kit with Gasket & Bolt Compatible with Cadillac Escalade, GMC Yukon Sierra, Chevy Suburban Silverado Tahoe Express 4.8 5.3 6.0 6.2L Replace# 635-518 12633579 12639250

This Engine Rear Main Seal Cover Kit is designed for a wide range of vehicles. It fits many Chevy, GMC, Cadillac, and Buick models. Make sure to check the part number to ensure compatibility.
It is made of high-quality aluminum. This ensures long-lasting corrosion resistance and durability.
This kit includes the gasket and bolts needed for installation. It perfectly matches OEM specifications. Get your vehicle running smoothly with this high-quality replacement part.
| Pros | Cons |
|---|---|
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Perfect For:
This Engine Rear Main Seal Cover Kit is perfect for anyone who owns a Cadillac, GMC, or Chevy vehicle with a 4.8, 5.3, 6.0, or 6.2L engine. It’s easy to install and built to last, ensuring your car runs smoothly.
Ready to Purchase?
5. RADHLBNIU Rear Main Seal Kit Compatible with Chevy Tahoe Suburban Silverado Express Avalanche Cadillac Escalade GMC Yukon Sierra Savana 4.8L 5.3L 6.0L 6.2L Replaces# 635-518 12633579 12639250

The RADHLBNIU Rear Main Seal Kit fits many Chevy and GMC models. It is made of strong die-cast aluminum for a tight, leak-free fit.
This kit comes with a new gasket. It has installation hardware. It keeps your engine running smoothly.
| Pros | Cons |
|---|---|
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Perfect For:
This RADHLBNIU Rear Main Seal Kit is perfect for vehicle owners who need a reliable and durable solution for their Chevy, Cadillac, or GMC models. It’s ideal for those looking to replace worn-out parts and ensure a leak-free fit with high-quality materials.
Ready to Purchase?
6. FEL-PRO BS 40592 Rear Main Seal Set

Keep your Ford F-150 running smoothly with the FEL-PRO BS 40592 Rear Main Seal Set. This quality part is designed for a perfect fit. It meets or exceeds original equipment standards.
This engine crankshaft seal kit is built for unsurpassed quality. It’s the right part to ensure your vehicle’s performance.
| Pros | Cons |
|---|---|
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Perfect For:
The FEL-PRO BS 40592 Rear Main Seal Set is perfect for Ford owners who need a reliable replacement part. It’s designed to fit specific Ford models, ensuring a perfect match for your vehicle.
Ready to Purchase?
7. Bar’s Leaks Rear Main Seal Repair, 16.9 oz

Bar’s Leaks Rear Main Seal Repair is a powerful solution for stubborn oil leaks. It seals timing covers, cam seals, and rear mains. Just add it to your engine oil.
This 16.9 oz bottle is easy to use. It’s specially designed for rear main leaks. It also works better than regular stop leaks for other leaks.
Pour the entire bottle into your engine crankcase. Most leaks will stop within 100 miles or 2 days of driving. No overfilling needed.
| Pros | Cons |
|---|---|
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Perfect For:
Bar’s Leaks Rear Main Seal Repair is perfect for anyone with an oil leak. It’s easy to use and works fast to stop leaks in your engine.
Ready to Purchase?
8. BS40640 Rear Main Seal Kit for Chevy Silverado 1500 1997-2016 GM LS Engines 4.8L 5.3L 5.7L 6.0L 6.2L – Replacement Crankshaft Seal & Metal Gasket Set, Fits Tahoe, Suburban

The BS40640 Rear Main Seal Kit is made for Chevy Silverado 1500 and other GM vehicles. It fits LS engines from 1997 to 2016. This kit includes a crankshaft seal and a metal gasket set.
It works with Chevrolet, GMC, Cadillac, Buick, Pontiac, and Hummer vehicles. The kit fits many engine sizes, including 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L.
The kit is a replacement for OEM parts. It ensures a tight seal and prevents leaks in your engine.
| Pros | Cons |
|---|---|
|
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Perfect For:
This BS40640 Rear Main Seal Kit is perfect for Chevy and GMC owners who need a reliable replacement for their GM LS engines. It fits many popular models like the Silverado, Tahoe, and Sierra, ensuring a tight seal and long-lasting performance.
Ready to Purchase?
9. FEL-PRO BS 40661 Rear Main Seal Set

Keep your engine running smoothly with the FEL-PRO BS 40661 Rear Main Seal Set. This engine crankshaft seal kit is designed for a perfect fit on a wide range of Toyota, Chevrolet, and Pontiac vehicles.
It meets or exceeds original equipment specifications. You get unsurpassed quality you can trust. Get the right part for your vehicle today!
| Pros | Cons |
|---|---|
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Perfect For:
The FEL-PRO BS 40661 Rear Main Seal Set is perfect for car owners who need a reliable replacement part. It’s ideal for Toyota, Chevrolet, and Pontiac models listed, ensuring a perfect fit and trusted quality.
Ready to Purchase?
10. FEL-PRO BS 40694 Rear Main Seal Set

The FEL-PRO BS 40694 Rear Main Seal Set is a reliable engine crankshaft seal kit. It’s designed for Nissan Altima and other compatible vehicles. This set ensures a perfect fit for your car’s needs.
It works with many Nissan and Suzuki models. Check your vehicle’s year, make, and model before buying. This ensures the part fits correctly and works well.
The seal set meets high standards and is built to last. Trust it for quality and performance in your vehicle.
| Pros | Cons |
|---|---|
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Perfect For:
This FEL-PRO BS 40694 Rear Main Seal Set is perfect for Nissan Altima owners who need a reliable replacement part for their engine’s crankshaft seal. It’s designed for a perfect fit and meets original equipment standards, ensuring unsurpassed quality for your vehicle.
Ready to Purchase?
Buying Guide
A leaking rear main seal can cause big problems. Finding the best rear main seal keeps your engine safe and your car running well.
Choosing the right seal is easy with this guide. We’ve picked top options for durability and performance. Get ready to find the perfect seal for a leak-free engine and worry-free driving.
Here’s what to consider when buying:
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Vehicle Compatibility:
Make sure the seal fits your car’s make, model, and year. Check the part number for a perfect match. -
Material Quality:
Look for seals made of strong materials like die-cast aluminum or high-grade rubber. They last longer and resist leaks. -
Kit Inclusions:
Some kits come with gaskets, bolts, or hardware. These extras make installation easier and ensure a tight fit. -
Brand Reputation:
Choose trusted brands known for quality and reliability. They often offer warranties for added peace of mind. -
Ease of Installation:
Pick a seal that’s easy to install. Some come with clear instructions or are ready to use right out of the box. -
Leak Prevention:
Look for seals with updated designs or special coatings. These features help prevent leaks and keep your engine dry. -
Price and Value:
Compare prices to find the best value. A higher price doesn’t always mean better quality, so check reviews and features.
With these tips, you’ll find the perfect rear main seal for your car. Drive with confidence and keep your engine leak-free!