Protorque 1.4 Kw High Torque Starter For Harley Features: 12 Volt 1.4kw High Torque Starter Jackshaft with Big Hole 1/4 20 Thread Will Replace Older 1.2kw 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 31553-90 A