QSB6.7 Engine Gasket Kit 4955229 For Cummins Engine Parts

A complete gasket kit for Cummins 6.7L engines manufactured between May 2007 and 2024 and later includes an upper (cylinder head) gasket and a lower (modified) gasket, typically using an MLS (multi-layer steel) cylinder head gasket. Key specifications include a standard thickness of 0.052 inches (or a thicker gasket for machined cylinder heads), a 4.312-inch bore, a high-temperature exhaust manifold gasket, and, depending on the kit, may include valve stem oil seals.

Description

Key Components and Specifications

Upper Components (Cylinder Head Gasket Kit): Includes multi-layer sheet metal (MLS) cylinder head gasket, exhaust manifold gasket, intake manifold gasket, valve cover gasket, exhaust gas recirculation (EGR) gasket, and injector O-rings.

Lower Components (Aftermarket Kit): Includes oil pan gasket, front and rear crankshaft oil seals, timing cover gasket, and oil cooler gasket.

Material: Multi-layer sheet metal (MLS), suitable for high-pressure sealing.

Thickness: Standard thickness 0.052 inches; custom thickness available based on engine block height.

Compatibility: Due to changes in the exhaust gas recirculation (EGR) system and mounting hardware, only applicable to 2007.5-2018 or 2019-2024 and later models.

Common Part Numbers

Upper (07.5-18): Cummins 4955354, Mahle HS54774; Lower (07.5-17): Mahle CS54774

Upper (2019+): Mahle HS55525

Lower (2019+): Mahle CS55525