Engine Timing Cover Gasket Set - Replaces TCS45993, 12633904, Compatible with Buick, Cadillac, Chevrolet, GMC, Hummer - 4.8L 5.3L 5.7L 6.0L 6.2L Rainier, Escalade, Avalanche, Sierra, Silverado, Yukon








Key features
- •Replacement Engine Timing Cover Set - Keeps the crankshaft, camshaft, timing belts and engine valves out from dirt, grime and any contaminants and also ensures a tight seal between the engine block and the engine timing cover which prevents engine oil from leaking. Regular exposure to heat and contraction between the engine block and the cover are the common causes of worn out engine timing gaskets.
- •Compatible Replacement for Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Pontiac Vehicles with 4.8L, 5.3L, 5.7L, 6.0L, 6.2L Engine - 2004-2007 Buick Rainier 5.3L | 2010-2015 Cadillac CTS 6.2L | 2002-2005 Escalade 5.3L | 2007-2014 Escalade ESV 6.2L | 2007-2013 Avalanche 5.3L | 1997, 1998, 1999, 2000 Corvette 5.7L | 2003-2014 Express 1500 5.3L | 2003-2004 SSR 5.3L | 2007 Silverado 1500 4.8L | 2007 Silverado 2500 HD Classic 6.0L | & more. See below for a full vehicle list.
- •Replaces Part# TCS45993, 12633904, TCS 45993, JV5158, JV5022, TCS10448 commonly found on popular Rainier, CTS, Escalade, Escalade ESV, EXT, Avalanche 1500, Camaro, Caprice, Colorado, Corvette, Express 1500, 2500, 3500, 4500, Impala vehicles with years 1997-2020. This kit includes the engine timing cover gasket, water pump gaskets and oil pump inlet tube o-rings for a complete and proper installation.
- •OEM Fit, Quality, Finish - While this is not a genuine OEM part, it is a direct replacement part for your factory Silverado 1500, Sierra 2500, Trailblazer, Envoy, Tahoe or Yukon engine timing gasket and will fit, work and look exactly like the factory part. Over time, the engine timing gasket starts to shrink which makes the bond go off and develop oil leaks.
- •Lifetime Warranty - This replacement part from AA Ignition comes complete with a lifetime warranty. If the part ever fails on your Corvette, Suburban, Canyon, H2, GTO or Ascender simply contact us for a replacement. Save time and money off of dealer prices by purchasing this part and installing it yourself and taking advantage of our warranty.
BrandAA Ignition
CategoryTiming Cover Gasket Sets
Engine Timing Cover Gasket Set - Replaces TCS45993, 12633904, Compatible with Buick, Cadillac, Chevrolet, GMC, Hummer - 4.8L 5.3L 5.7L 6.0L 6.2L Rainier, Escalade, Avalanche, Sierra, Silverado, Yukon
List Price: $36.84$33.16DEALYou Save: $3.68 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 25, 2026In Stock (1)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
Customer Reviews
Reviews sourced from verified Amazon purchasers4.5
out of 5
Based on 2 reviews
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I forgot to take pictures of the kit as i was installing it.
Hugo Salazar✓ Verified Purchase•September 14, 2023
The kit came with a lot of unnecessary gaskets because it's a universal kit. However, it did come with everything I needed for my 07 Cadillac Escalade. Front main seal, timing cover gasket, and water pump gaskets.
A+++++
Mark Twain✓ Verified Purchase•July 21, 2023
Good did the job no complaints or leak. :p
Literally this is an exact copy of O.E. GM LSx family of engines for these gaskets set.
The crankshaft balancer seal is a double-lip seal that "only national brand made and offered but they got bought out by timken"
So the so-called "improved design by timken" is not "improved as timken claims" The fact is that this set contains the GM "designed by national" is very remarkable.
Personally was shocked I found this design by an imported mfr.
Literally this is an exact copy of O.E. GM LSx family of engines for these gaskets set.
The crankshaft balancer seal is a double-lip seal that "only national brand made and offered but they got bought out by timken"
So the so-called "improved design by timken" is not "improved as timken claims" The fact is that this set contains the GM "designed by national" is very remarkable.
Personally was shocked I found this design by an imported mfr.







