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Dorman 635-518 Engine Rear Main Seal Cover Compatible with Select Models

Free shipping on orders over $29.99

$50.93

$ 21 .99 $21.99

In Stock

About this item

  • Direct replacement - this rear main seal cover kit matches the factory design, and includes a new gasket, installation hardware, and an updated seal design for superior leak prevention
  • Durable construction - the timing cover in this kit is made of die-cast aluminum for a leak-free fit and durability
  • Convenient solution - this kit includes a new gasket and installation hardware for a complete repair
  • 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
  • Please check the “Amazon Confirmed Fit” bar at the top of this page before buying product to ensure this product works for your vehicle. If the “Amazon Confirmed Fit” bar has an “i” in a blue circle, this product has additional notes. Please hover over the “i” on the bar to see notes before making your purchase.


This direct replacement rear main seal cover kit matches the fit and function of the original equipment cover for a reliable repair. This part has undergone extensive testing to ensure adherence to precise design standards.


Charles J.
2025-08-16 10:13:29
This item completely fixed my oil leak problem, direct fit. For those of us with vintage Silverado trucks I strongly recommend replacing your rear main seal and plate. Also use gasket sealer along/across the bottom.
JK Gear and Gadgets
2025-07-26 12:17:23
Installed on an 05 5.3. Great quality and no issues! No leaks, fit like oem.
Raymond S.
2025-06-06 14:45:27
Good product
Nick G
2025-04-29 14:55:21
Stopped it from leaking and very easy install! Going strong for about a month now.
David A. Hulten
2025-04-25 16:23:26
I was a little concerned after I repalced the seal as I was still getting drips of oil. It turned out to be residual oil and completely went away after running the engine for 30 mins. Very happy that I wont be staining driveways anymore and wont have to be perpetually adding oil!
Mark McDonald
2025-04-09 12:40:25
Product comes with the seal installed. Careful installation allows it to work properly. With the crankshaft cleaned very well, no rust or sharp edges you slip the new seal in place dry and clean. No Oil or grease because this is a teflon seal. Once fully in place by hand start all the upper bolts and then install the lower pan two long bolts leaving all bolts loose. Slowly tighten the upper bolts working around the seal area first, letting the seal be put in place centered on the crankshaft so you get long life. Now torque the upper bolts first and finish by tightening the lower bolts and torqueing them. You read of lots of guys saying this does not work and leaks. They installed it wrong in most cases. IF you tighten the lower 2 long bolts first the seal will egg shape on the crankshaft and leak. If you don't tighten the upper bolts slowly working your way around the seal and gradually bringing the entire plate tight against the block you will cause issues and maybe even break the new plate. Follow procedure and it works.
Chad stillman
2025-04-04 14:04:41
Wow fixed my oil leak and fit perfect no issues on the install great product A+++++
APR
2025-03-17 10:55:39
I was going to replace just the seal but I opted for the whole assembly. It's been 2 weeks and no oil drops. Take your time and follow the instructions.
Jordy V.
2025-01-28 16:32:07
Didnt need the centering tool for this kit.Followed torque sequence and no leaks.
Matteo
2024-12-31 15:26:04
This product worked amazing no more leaks!!!
Dave
2024-12-26 15:28:12
So far so good perfect fit very happy
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