Original GM valve stem seals which fit these applications. Replace your seals with genuine GM original parts. 12 required for 6 cylinder and 16 required for 8 cylinder.
1990 GMC K2500 Parts - Intake Manifold Gaskets
Classic Industries offers a wide selection of Engine Gaskets for your 1990 GMC K2500. Classic Industries offers 1990 GMC K2500 Head Gaskets, 1990 GMC K2500 Intake Manifold Gaskets, 1990 GMC K2500 Oil Pan Gaskets, 1990 GMC K2500 Rebuild Sets, 1990 GMC K2500 Timing Cover, 1990 GMC K2500 Valve Cover Gaskets, and 1990 GMC K2500 Water Pump Gaskets.