Harley Crankshafts and Parts

Kit includes right and left side crankshaft races with the left side thrust washers, These Feuling press on races have a precision ground outer diameter finish and are designed to be true to size producing the correct OD after proper press on installation

Kit includes right and left side crankshaft races with the left side thrust washers, These Feuling press on races have a precision ground outer diameter finish and are designed to be true to size producing the correct OD after proper press on installation

A quality bearing kit is the foundation of reliable drivetrain performance, and this Eastern Motorcycle Parts bearing assembly delivers the precision fit and durability your build demands. Whether you're rebuilding a transmission, replacing worn races,...

Precision-engineered bearings are fundamental to reliable engine performance and longevity. The EASTERN MOTORCYCLE PARTS Race Bearing A-24605-07 delivers the tight tolerances and durability demanded by competitive riders and high-performance builds...

Race-grade bearings demand precision engineering and minimal runout to deliver the reliability your engine or transmission needs under sustained high RPM operation. The EASTERN MOTORCYCLE PARTS A-24004-RACE bearing is engineered to tighter tolerances...

Worn bushings compromise your bike's handling precision and introduce play into critical suspension components. This OEM-spec bushing restores proper alignment and eliminates unwanted movement, delivering the responsive feedback you need whether you're...

If you're running a high-performance S&S Cycle engine build, drivetrain durability depends on precision-engineered internal components. The Pinion Shaft Conversion Kit 33-4148 ensures proper gear engagement and load distribution, eliminating weak points...

A crankpin is the foundation of your engine's rotating assembly—if it fails, your entire bottom end is compromised. The S&S Cycle Crankpin for Big Twin engines is precision-manufactured to exacting tolerances, ensuring reliable power transfer and...

A quality crankpin is the foundation of reliable big twin engine performance. Whether you're rebuilding a classic motor or maintaining a high-mileage engine, S&S Cycle's precision-engineered crankpin ensures proper crank assembly geometry and eliminates...

A worn or damaged crankpin is a ticking time bomb for your Big Twin engine—it directly impacts rod bearing life, crankshaft alignment, and overall power delivery. The S&S Cycle Crankpin 34-2102 is a precision-engineered replacement that restores proper...

A worn or damaged crankpin compromises the entire rotating assembly, leading to catastrophic engine failure. The S&S Cycle Crankpin is precision-engineered to OEM specifications and built from premium materials, ensuring reliable power transfer and...

The S&S Cycle Crankpin 34-2503 is an essential replacement component for high-mileage big-twin engines or custom builds where factory tolerances have worn beyond serviceable limits. This precision-manufactured crankpin restores proper journal clearances...

The S&S Cycle Crankpin is a precision-engineered component engineered to withstand the extreme stresses of high-RPM operation and forced induction applications. This OEM-quality crankpin restores critical clearances and tolerances, ensuring reliable...

The S&S Cycle Pinion Shaft is engineered for Big Twin engines that demand reliability under sustained load and high RPM conditions. A worn or damaged pinion shaft compromises primary drive efficiency and can lead to catastrophic drivetrain failure. This...

The S&S Cycle Pinion Shaft is engineered for Big Twin engines that demand reliable, precision-machined drivetrain components. A quality pinion shaft ensures smooth power delivery and longevity under high-stress racing and performance conditions. This...

The S&S Cycle Pinion Shaft is a critical drivetrain component for Big Twin engines, engineered to handle the increased torque loads of performance builds. Whether you're upgrading your primary drive or rebuilding after a failure, this domestically...

A worn or damaged crankpin directly compromises engine reliability and performance in your Big Twin—this OEM-specification replacement restores proper crank geometry and eliminates excess bearing play. S&S Cycle's precision-manufactured crankpin ensures...

The S&S Cycle Motor Sprocket Shaft Assembly is engineered for Big Twin engines that demand reliable power transfer and precise timing control. This domestically manufactured component ensures consistent performance whether you're running a stock...