Free Shipping On Orders Over $75. Details

Talk to a Sierra Enthusiast
M-F 8:30A-11P, Sat-Sun 8:30A-9P
$12k Summer Sweeps, 3 Chances to Win! Enter Now >
$10 OFF – Truck Show View Deal

GMC Sierra Gaskets & Seals

2.7L I4, 3.0L I6 Duramax, 4.3L V6, 4.8L V8, 5.3L V8, 6.0L V8, 6.0L V8 Hybrid, 6.2L V8

Tell us about your vehicle

And we'll show you items that fit

Sierra 1500
How To
Find your bed length; Measure from bulkhead to tailgate
Don't see Delete Question 1 of 3
Ownership does not affect chances of winning
Please complete your Sierra 1500 info

Best Selling Engine for your Sierra

Recently Added: Sierra;Gaskets and Seals

GMC Sierra Gaskets & Seals

Adjustments and modifications to the engine can cause a risk of leaks, especially when gas or fluid pressures increase – so having the correct 2014-2017 gaskets & seals for your GMC Sierra is an important part of certain upgrades. Working on the cylinder heads of your truck so that they won’t leak the increased pressures of a powered-up engine, for example, means that stronger head gaskets are useful and maybe crucial. The 2007-2013 gaskets & seals carried by AmericanTrucks includes head gaskets made from steel with fluoroelastomer semi-rubber coating that can endure boosted pressures, plus temperatures up to 482° F. Oil pump installation kits also include upgraded gaskets to contain the bigger pressures and make sure they do their job – all using parts made to high quality standards by leading aftermarket companies.


Shop All Truck Accessories & Parts


Fitment Includes

  • Base, C3, Classic, HT, Hybrid, Nevada Edition, SL, Z71, Denali, SLE, 1500, SLT and WT Sierras
  • Engines: 4.3L Vortec V6, 4.8L Vortec V8, 5.3L Vortec V8, 5.3L Flex-Fuel Vortec V8, 5.3L Vortec V8 Hybrid, 6.0L Vortec V8, 6.2L VVT Vortec V8, 4.3L EcoTec3 V6, 5.3L EcoTec3 V8, 6.2L EcoTec3 V8 Sierras

*Please see Sierra parts pages for any exceptions.