1503 Complete Crankshaft Assembly for Sea-Doo Speedster 1 x 155 2012

Complete Crankshaft Assembly for Sea-Doo Speedster

This complete crankshaft assembly is a replacement engine component for the Sea-Doo Speedster 1503 platform, restoring the rotating core that converts piston motion into drive power.

Overview

This complete crankshaft assembly is built to serve as the rotating heart of the 1503 engine used in the Sea-Doo Speedster. The crankshaft assembly ties the connecting rods to the crankcase so the engine can produce reliable thrust on the water. It suits riders and mechanics rebuilding a 2012 Sea-Doo Speedster powerplant who need a complete crankshaft assembly rather than loose components.

Built For Performance

• Complete assembly supplied ready for installation into the 1503 engine case
• Machined journals sized for the 1503 powerplant bearing set
• Balanced construction to support smooth high-rpm operation
• Built from hardened steel for marine duty cycles
• Designed as a direct replacement for the 2012 Speedster 1503 crankshaft

Fits These Machines

• for Sea-Doo Speedster 1503, 2012

On-The-Job Use

• Engine rebuilds on the 1503 powerplant
• Bottom-end repair after bearing or rod failure
• Restoring a 2012 Speedster to running condition
• Shop and DIY rebuild projects

Specs At A Glance

Good To Know

Q: Is this an original Sea-Doo part? A: This is an aftermarket complete crankshaft assembly made for the Sea-Doo 1503 platform, not an original factory unit. Confirm your engine code and serial number before ordering.

Q: What else should be replaced during a crankshaft job? A: Bearings, seals, and gaskets are typically refreshed at the same time to protect the new crankshaft assembly. Follow your service manual torque and clearance specs during assembly.

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