Complete Crankshaft Assembly for Sea-Doo Islandia SE 155 1503 2007

Complete Crankshaft Assembly for Sea-Doo

This complete crankshaft assembly is a direct replacement component for the Rotax 1503 engine used in Sea-Doo watercraft, restoring the core rotating assembly that converts piston motion into drive power.

Overview

This complete crankshaft assembly fits the 1503 engine platform found in Sea-Doo models, delivering the rotating core that carries connecting rods and drives the driveline. It suits riders and shops rebuilding a 155-horsepower powerplant that has spun a bearing, seized, or worn past service limits. As a complete crankshaft assembly, it replaces the original unit as one balanced piece rather than sourcing individual components.

Built For Performance

• Complete assembly includes crankshaft, connecting rods, and bearings in one unit
• Machined journals sized for the 1503 engine platform
• Balanced construction to support 155-horsepower output
• Built to withstand continuous high-RPM marine use
• Drop-in replacement for a rebuild or engine refresh

Fits These Machines

• for Sea-Doo Islandia
• for Sea-Doo SE 155
• for Sea-Doo 1503 engine models
• for Sea-Doo 2007 model year applications

On-The-Job Use

• Engine rebuilds after a spun bearing or seizure
• Bottom-end refresh during a top-end overhaul
• Restoring a watercraft that has lost compression or cranking
• Shop-level repair of 155-horsepower Rotax powerplants

Specs At A Glance

Good To Know

Q: Does this assembly include the connecting rods and bearings? A: As a complete crankshaft assembly, it is designed to supply the full rotating group for the 1503 engine. Confirm the exact included components with the listing before ordering.

Q: Will this crankshaft fit any 1503 engine by model year alone? A: Fitment depends on the specific Sea-Doo model and serial number, not just the year. Verify your machine's engine code and serial range before purchase.

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