Caterpillar C12 Flywheel

The AK‑4P8515 Flywheel by Akmi Corp is a premium aftermarket replacement for Caterpillar 3176, C10, C12, and C13 diesel engines. Constructed from rugged, heat-treated cast iron, it meets OEM quality and includes a 20″ O.D. AK4N2514 ring gear with 113 teeth. Designed with an SAE #1 mounting interface, 8-bolt pattern, and 10″ center opening for a 15″ clutch, it's compatible with pilot bearing 306. Weighing approximately 85 lbs and packed in a 25″×25″×5″ box, it ships ready-to-install with no core return required. Backed by a full 1‑year warranty, this flywheel delivers reliable power transfer and clutch performance for heavy-duty applications, all supported by expert service from Wofford Truck Parts.