A premium molded-rubber thermostat housing gasket built on a rigid aluminum carrier for excellent sealing stability and long service life. Designed to be fully reusable, it’s ideal for engines that are regularly serviced or disassembled. The molded sealing bead provides consistent crush and leak-free performance, and the aluminum backing prevents distortion when tightening. Compatible with both factory and aftermarket water outlets and installs without any gasket sealer.

Compatible with the following engines:
• 1955–2002 Chevrolet small block (262–400 Gen I)
• 1965–2000 Chevrolet big block (396–502)
• 1979–1992 Mopar 318/360 LA small block
• 1992–2003 Mopar 3.9L / 5.2L / 5.9L Magnum