Complete Crankshaft Assembly for Sea-Doo Challenger SP 310 1503 2010-2011

Complete Crankshaft Assembly for Sea-Doo Challenger SP 310

This complete crankshaft assembly is a direct replacement component built for the Sea-Doo Challenger SP 310 1503, restoring the rotating core of the 1503 engine so the driveline turns true again.

Overview

This complete crankshaft assembly is built to replace a worn or damaged crank in the Sea-Doo Challenger SP 310 1503 engine covering the 2010 to 2011 model years. It transfers piston force into rotation, drives the balance and oil pump systems, and keeps the 1503 powerplant operating smoothly. It suits riders and shops handling a full engine rebuild or crank replacement on a Sea-Doo Challenger SP 310 1503.

Built For Performance

• Complete assembly arrives ready for installation with rod and bearing components in place
• Constructed from hardened steel for durability under sustained marine RPM loads
• Precision machined journals support correct bearing clearance and oil flow
• Balanced to reduce vibration through the 1503 engine block
• Designed as a direct fit replacement for the Sea-Doo Challenger SP 310 1503 crankshaft

Fits These Machines

• for Sea-Doo Challenger SP 310 1503, 2010
• for Sea-Doo Challenger SP 310 1503, 2011

On-The-Job Use

• Full engine rebuilds after bottom end failure
• Replacing a scored or seized crankshaft
• Shop service work on jet drive watercraft
• Seasonal maintenance on 1503 powered boats

Specs At A Glance

Good To Know

Q: Does this come as a complete assembly? A: Yes, it is supplied as a complete crankshaft assembly for the listed 1503 application. Confirm your exact hull and engine code before ordering.

Q: Can I install this myself? A: Crankshaft replacement requires engine removal and precision reassembly, so professional installation is recommended. Verify torque specs and clearances during the rebuild.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.