1503 Complete Crankshaft Assembly for Sea-Doo Challenger SE 155 2007-2009

Complete Crankshaft Assembly for Sea-Doo Challenger / SE 155 1503

This complete crankshaft assembly is a direct-fit replacement engine component for Sea-Doo Challenger and SE 155 1503 models, restoring the rotating assembly that converts piston motion into the power your 4-stroke marine engine depends on.

Overview

This complete crankshaft assembly serves as the rotating heart of the 1503 4-stroke engine used in the Sea-Doo Challenger and SE 155. When a worn or damaged crank robs the engine of smooth operation, this assembly brings back the balance and durability the platform was engineered around. It is built for riders, mechanics, and rebuilders bringing a tired 155-horsepower powerplant back to life for the 2007 through 2009 model years.

Built For Performance

• Complete rotating assembly with crank, rods, and bearings ready for installation
• Designed to match the balance and stroke of the 1503 4-stroke engine
• Constructed from hardened steel for high-RPM marine service
• Precision-machined journals for reliable bearing fitment
• Replaces a worn or scored crank to restore smooth engine operation

Fits These Machines

• for Sea-Doo Challenger 155, 2007-2009
• for Sea-Doo Challenger SE 155, 2007-2009
• for Sea-Doo 1503 4-stroke engine applications, 2007-2009

On-The-Job Use

• Engine rebuilds where the crankshaft is scored or out of spec
• Bottom-end service on Challenger and SE 155 boats
• Restoring smooth idle and throttle response to a worn powerplant
• Seasonal maintenance and pre-season engine refresh work

Specs At A Glance

Good To Know

Q: Is this crankshaft assembly a direct replacement? A: Yes, it is built to match the 1503 4-stroke engine used in Challenger and SE 155 models, making it a direct replacement for the original rotating assembly.

Q: Does it include the connecting rods and bearings? A: Yes, this is sold as a complete assembly with the crank, rods, and bearings so the bottom end can be rebuilt as a unit.

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