Allison Transmission 29543314 M939 Transmission Flywheel Adapter Housing

Allison Transmission 29543314 is a genuine flywheel-housing adapter hub engineered to connect a Cummins C engine to an Allison M939 transmission. This part, listed as Adapter, Hub, Cummins C, is cataloged under NSN 2990-01-521-9918 and described in supplier records as an Adapter, Flywheel Housing for tractor transmissions. It serves as the mechanical interface between the Cummins C hub and the M939 transmission’s flywheel housing, ensuring correct alignment of the engine flywheel with the transmission input and secure mounting to the bell housing. Typical applications include heavy-duty tractor transmission configurations where a Cummins C powertrain is mated to an Allison gearbox, a combination encountered in military and commercial heavy equipment. As a genuine Allison component, 29543314 is referenced in parts guides and catalogs for installations requiring the Cummins C hub adapter and its flywheel-housing interface to maintain proper powertrain alignment and compatibility. End item identification is Tractor transmission, indicating its role within those powertrain assemblies.