AKMI CORP AK-3968060 Aftermarket Cummins B-Series Flywheel

The AKMI AK-3968060 flywheel is built for Cummins B-Series 3.9L and 5.9L engines and uses an 8-bolt mounting pattern with an SAE #3 clutch size for proper fitment. Designed for strength and consistent performance, it delivers smooth power transfer in demanding heavy-duty applications. This aftermarket flywheel offers solid durability and dependable operation, and Wofford Truck Parts supplies it as a reliable replacement option for fleet repairs and service-shop needs.

AKMI CORP Part No: AK-3968060

$215.94

Specifications

The AKMI AK-3968060 flywheel is a heavy-duty replacement for Cummins B-Series 3.9L and 5.9L engines, built for reliability and long service life. It features an 8-bolt flat-style design, an SAE #3 clutch size (330 mm), a 396 mm outer-diameter ring gear with 152 teeth, and a 25.4 mm pilot bearing bore. The included ring gear, part number AK-3910903 (also referenced as 3946391), ensures proper engagement with the clutch system. Engineered for smooth operation under high-torque conditions, this flywheel meets aftermarket performance standards, and Wofford Truck Parts provides dependable sourcing for fleet repairs and rebuilds.

Weight

53.2

Compatibility

Heavy-duty trucks equipped with Cummins B-Series 3.9 L (ISB) engines
Heavy-duty trucks equipped with Cummins B-Series 5.9 L engines
Trucks paired with the NV4500, NV5600, or G56 manual transmissions with above engines