1503 Complete Crankshaft Assembly for Sea-Doo Challenger SE 310 2008-2011

Complete Crankshaft Assembly for Sea-Doo Challenger / SE 310 1503

This complete crankshaft assembly is built for the Sea-Doo Challenger and SE 310 1503 models, providing the rotating core that converts piston motion into drive output for your marine engine.

Overview

The complete crankshaft assembly for Sea-Doo Challenger and SE 310 1503 delivers the connecting rod and bearing setup needed to restore engine rotation. This crankshaft assembly suits rebuilders and riders replacing a worn or damaged bottom end. Each unit is machined to factory tolerances for a dependable fit during reassembly.

Built For Performance

• Complete assembly with connecting rods and bearings pre-installed
• Machined journals for consistent bearing clearance and oil flow
• Heat-treated steel construction for high-rpm marine use
• Balanced rotating mass to reduce vibration at speed
• Built to OEM dimensional specifications for the 1503 engine

Fits These Machines

• for Sea-Doo Challenger 1503
• for Sea-Doo SE 310 1503

On-The-Job Use

• Bottom-end rebuilds on 1503 marine engines
• Replacing a scored or seized crankshaft
• Restoring compression and driveline performance
• Seasonal maintenance on jet-driven boats

Specs At A Glance

Good To Know

Q: Does this assembly include rods and bearings? A: Yes, this complete crankshaft assembly includes the connecting rods and bearings for the 1503 engine, ready to install during a bottom-end rebuild.

Q: Will this fit both the Challenger and SE 310? A: This crankshaft assembly is intended for the listed Challenger and SE 310 models with the 1503 engine, so verify your model and year before ordering.

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