Protorque 1.8 Kw High Torque Starter For Harley Features: 12 Volt 1.8kw High Torque Starter Jackshaft with Small Hole 10-32 Thread Will Replace Older 1.2kw & 1.4kw Versions Guaranteed to Meet or Exceed OEM Performance Unit Contains Protorque Life-Time High Performance Clutch with Special Metals, Hardened Cam, Sealed Bearings, High-Temperature Springs, Oversize Rollers, and Factory Pre-Lubing Replaces OEM 31553-94 A B