Cummins 3932180 Exhaust Manifold Assembly

The Cummins 3932180 exhaust manifold is a direct replacement component designed for the Cummins C-series 8.3 liter diesel engines, including 6CT, 6CT8.3, ISC, ISL, and QSC8.3 configurations. Manufactured from high-silicon ductile iron or austenitic nodular iron to withstand thermal cycling and corrosion resistance requirements. The assembly collects exhaust gases from the six cylinder exhaust ports and directs flow to the turbocharger inlet or exhaust aftertreatment system. Critical mounting flange flatness and port alignment are machined to OEM tolerances to ensure sealing integrity with cylinder head gaskets (typically part number 3929012) and turbocharger mounting hardware. This part supersedes previous casting number 3906741 and incorporates updated metallurgy for improved fatigue life in heavy equipment duty cycles.