HD Starter - Hemi Pro Mod 168 Tooth 12-Pitch

The MEZIERE HD Starter - Hemi Pro Mod 168 Tooth 12-Pitch (TS406H) is a high-torque gear reduction starter engineered for Mopar V8 engines demanding maximum cranking power. This True Start unit combines proven Hemi compatibility with adjustable block mounting, making it the preferred choice for serious performance builds where reliable cold-start capability and fast engine spin-up are non-negotiable. The 168-tooth 12-pitch flywheel engagement delivers aggressive gear reduction without sacrificing durability or longevity.

Weighing 14.63 lbs and measuring 7.5 x 7 x 11 inches, this starter incorporates MEZIERE's 400 Series True Start technology—a design philosophy centered on rapid engine rotation and consistent performance across wide temperature ranges. The gear reduction architecture multiplies cranking torque, enabling superior engagement even in high-compression or supercharged applications. Adjustable block mounting ensures proper pinion-to-ring-gear clearance, a critical factor for preventing engagement noise and extending starter life in heavily modified engines.

Purpose-built for Hemi-powered muscle cars, hot rods, and street performance applications, this starter addresses the real-world challenge of reliably turning over high-compression or forced-induction motors. Engine builders and restoration shops specify MEZIERE starters when factory units cannot provide the cranking speed required for tuned Mopar V8s. The 168-tooth specification ensures proper load sharing across the ring gear, critical for engines running aggressive ignition timing or solid mechanical components.

For anyone building or rebuilding a classic or modern Hemi, starter selection directly impacts both startup reliability and long-term durability. The adjustable block design gives installers precision control, eliminating guesswork during mounting and ensuring optimal meshing geometry from first turn. This is the component that bridges the gap between a fully assembled engine and a proven runner.