Restore the primary heart of your engine with this premium Replacement Crankshaft Assembly for Vintage Vespa P/PX Series scooters. Engineered to precise factory specifications, this crankshaft delivers optimal balance, high-tensile durability, and consistent rotational inertia required to eliminate engine vibration and preserve the life of your main bearings.
A worn or out-of-true crankshaft can cause severe crankcase damage, ignition timing drops, and accelerated oil seal failure. Replacing your old crank during a full engine split ensures smooth power delivery and factory-spec compression.
This crankshaft is designed specifically for Large Frame Vespa models utilizing 125cc to 150cc engines. It is NOT compatible with Vespa P200E / PX200 models or Small Frame variants (50/90/Primavera).
Mechanic's Installation Note: Always replace your main bearings, flywheel-side oil seals, and clutch-side oil seals whenever installing a new crankshaft. Ensure your woodruff keys are fully seated before torquing down the flywheel or clutch assembly to prevent shearing.
California Prop 65 Warning
