Starter Clutch Assembly 11-Tooth 12 Pitch Pinion

The Starter Clutch Assembly 11-Tooth 12 Pitch Pinion by POWERMASTER is a precision-engineered component designed for reliable engine starting in performance and stock applications. This assembly serves as the critical interface between the starter motor and the engine flywheel, engaging and disengaging automatically to deliver consistent torque multiplication during cold starts and demanding conditions. Built for technicians and enthusiasts who demand OEM-quality performance, this Mastertorque Starter component is essential for maintaining optimal starting reliability.

The 11-tooth, 12-pitch pinion configuration is engineered to provide smooth engagement with the flywheel ring gear while minimizing wear and noise during the starting cycle. The clutch mechanism employs spring-loaded rollers that automatically disengage once the engine fires, preventing backdriving damage and protecting the starter motor from excessive rpms. This design allows the pinion to mesh precisely with the flywheel, ensuring maximum power transfer when needed most while the compact footprint—measuring just 2.4 x 2.2 x 5.7 inches—fits within tight engine compartment spaces without compromising functionality or durability.

Mechanics and rebuilders rely on this POWERMASTER starter clutch assembly when overhauling or upgrading starter systems in street engines, race builds, and restorations where dependable cold-start performance is non-negotiable. Proper installation requires alignment with your specific engine's flywheel configuration and starter housing, making it critical to verify tooth count and pitch specifications during fitment. At 1.6 lbs, the assembly integrates seamlessly into complete Mastertorque Starter systems, delivering the holding power and engagement characteristics that separate reliable restarts from chronic starting issues.