Complete Crankshaft Assembly for Sea-Doo GTXS STD 155 1503 2017

Complete Crankshaft Assembly for Sea-Doo

This complete crankshaft assembly is a replacement rotating component for the Rotax 1503 engine used in Sea-Doo GTXS watercraft, supplying the core assembly that turns piston force into drive output.

Overview

This complete crankshaft assembly fits the 1503 engine platform used in Sea-Doo models, carrying the rods and spinning the driveline that powers the craft. It serves riders and technicians rebuilding a 155-horsepower engine that has suffered bearing failure, seizure, or journal wear. As a complete crankshaft assembly, it replaces the worn core as a single balanced unit instead of sourcing separate pieces.

Built For Performance

• Complete assembly with crankshaft, connecting rods, and bearings
• Machined journals built for the 1503 engine platform
• Balanced construction that supports 155-horsepower output
• Engineered for sustained high-RPM marine operation
• Ready for a bottom-end rebuild or engine refresh

Fits These Machines

• for Sea-Doo GTXS STD 155
• for Sea-Doo 1503 engine models
• for Sea-Doo 2017 model year applications

On-The-Job Use

• Bottom-end rebuild after bearing failure or seizure
• Engine refresh during a top-end service
• Repair of a 155-horsepower Rotax powerplant
• Shop-level restoration of a watercraft driveline

Specs At A Glance

Good To Know

Q: Is this a genuine Sea-Doo crankshaft? A: This is a complete crankshaft assembly for Sea-Doo machines, not an original brand part. It is built to serve as a replacement for the 1503 engine platform.

Q: How do I confirm it fits my GTXS STD 155? A: Match your engine code and serial number to the 1503 platform and the 2017 model year. Serial-based verification avoids ordering a unit that will not seat correctly.

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