1503 Complete Crankshaft Assembly for Sea-Doo Speedster 310 2008

Complete Crankshaft Assembly for Sea-Doo Speedster 310 1503

This complete crankshaft assembly is a direct replacement engine component for the Sea-Doo Speedster 310 equipped with the 1503 engine, restoring the rotating core of the 2008 powerplant.

Overview

This Complete Crankshaft Assembly for Sea-Doo Speedster 310 1503 is a full rotating assembly that transfers piston force into rotational power inside the engine. Built as a replacement crankshaft for the 1503 four-stroke platform, it suits rebuilders, marine mechanics, and owners reviving a 2008 Sea-Doo Speedster 310. The Complete Crankshaft Assembly includes the crank and matching connecting rods so the bottom end can be serviced as one unit.

Built For Performance

• Complete assembly with crankshaft and connecting rods for one-step bottom end service
• Machined journals sized for the 1503 four-stroke engine platform
• Balanced rotating mass to support smooth high-rpm operation
• Constructed from heat-treated steel for wear and fatigue resistance
• Designed as a direct-fit replacement for the original crankshaft

Fits These Machines

• for Sea-Doo Speedster 310 with 1503 engine, 2008

On-The-Job Use

• Engine rebuilds after crankshaft bearing or rod failure
• Bottom end refreshes during off-season maintenance
• Marine repair shops handling 1503 four-stroke service
• Restoring a stored or non-running Speedster 310 to service

Specs At A Glance

Good To Know

Q: What does a complete crankshaft assembly include? A: It ships as a crankshaft with connecting rods already matched to it, so the rotating assembly can be installed as one unit during a rebuild.

Q: Should I have this installed by a professional? A: Crankshaft replacement requires splitting the engine cases and precise torque sequencing, so professional installation is recommended for correct bearing clearances.

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