A3660320105
Flywheel Ring Gear - OM904 Euro 4/5
Detroit Diesel

The ring gear associated with flywheel assemblies is critical for the smooth transfer of torque from the engine to the transmission system. Precision-machined from chromium molybdenum steel, this gear provides exceptional strength and durability to withstand the high stresses of engine operation. Its inner diameter of 392 mm and outer diameter of approximately 444 mm are designed to fit specific flywheel configurations, ensuring seamless engagement with starter components for reliable engine cranking. The gear features 146 teeth, which are carefully shaped to promote even wear and optimal meshing with the starter motor pinion. Proper installation of this ring gear is vital for consistent engine starting and efficient power transfer. Its robust construction helps resist cracking, deformation, and wear over thousands of cycles. For quality assurance and proper fitment, this part is available through Source One Parts Center, ensuring your engine's starting system remains dependable and effective.