KR 150 Full Matel Crankshaft (15pin)

Full coverage. Precision stroke. Reliable foundation.

This Full Metal Crankshaft for Kawasaki KR150 is available in two stroke lengths: 54.4 mm (standard) and 55.4 mm (+1.0 mm), both with a 15 mm piston pin. The full-coverage counterweight design ensures balance and durability under high load, making it suitable for both OEM replacement and mild displacement upgrades. Each crankshaft is precision-machined for consistent fitment, ensuring smooth rotation and long service life.

Highlights

  • Two Stroke Options54.4 mm (STD) for OEM spec; 55.4 mm (+1.0 mm) for added stroke and torque potential.

  • 15 mm Piston Pin — Strength-focused size for performance reliability.

  • Full Coverage Design — Reinforced counterweights for stability at higher RPM.

  • Precision Machined — Tight tolerances for smooth rotation and consistent sealing.

  • OEM-Compatible — Direct fit for KR150 engine cases without modification.

Product Specifications
Stroke: 54.4 mm (STD) / 55.4 mm (+1.0 mm)
Piston Pin: Ø15 mm
Type: Full Metal Crankshaft (full-coverage design)
Fitment: Kawasaki KR150
Package Includes: Full Metal Crankshaft ×1

Installation Notes

  • Confirm stroke specification (STD / +1.0 mm) before purchase.

  • For +1.0 mm stroke, check squish clearance, compression ratio, and jetting.

  • Always use new bearings and oil seals during installation.

  • Recheck crankshaft end play and torque after initial run-in.

Power You Can Trust.