Cummins 3929012 Exhaust Manifold Gasket

The Cummins 3929012 exhaust manifold gasket is designed for non-certified automotive and industrial 8.3 liter C series engines, including 6CT and 6C configurations. It seals the interface between the exhaust manifold and cylinder head, preventing exhaust gas leakage under extreme thermal cycling. Constructed from stainless steel in multi-layer or single-layer variants, the gasket withstands temperatures exceeding 800°C and maintains clamp load retention. This part replaces OE numbers 3932063, 3921787, and 3937479. It is supplied individually or in sets of six for complete engine service. Applications span heavy-duty trucks, construction equipment, agricultural machinery, and power generation units equipped with Cummins 8.3L engines.