420947573 Crankshaft Output Sleeve for Sea-Doo Spark TRIXX 2Up 900 2017-2021

Crankshaft Output Sleeve for Sea-Doo Spark TRIXX 2Up 900

This crankshaft output sleeve replaces the worn sleeve on the 900 ACE engine crank, cross-referencing OEM 420947573, so the flywheel and driveline interface back up correctly.

Overview

This crankshaft output sleeve is a direct-fit replacement for the 900 ACE engine used in the Sea-Doo Spark TRIXX 2Up, cross-referencing OEM 420947573. It restores the crank output surface so the flywheel, seals, and driveline components seat and spin as intended. This output sleeve for Sea-Doo suits riders and shops servicing 2017 through 2021 Spark TRIXX 2Up 900 models.

Built For Performance

• Machined steel sleeve for the crank output end
• Cross-references OEM part 420947573
• Precision-ground outer surface for seal and bearing contact
• Heat-treated for wear resistance under load
• Fits the 900 ACE engine crank output position

Fits These Machines

• for Sea-Doo Spark TRIXX 2Up 900 (2017-2021)
• for Sea-Doo 900 ACE engine platform

On-The-Job Use

• Crank output service on a Spark TRIXX 2Up 900
• Repairing a worn sleeve surface during bottom-end work
• Seal and flywheel fitment restoration

Specs At A Glance

Good To Know

Q: What does this sleeve do? A: It provides the contact surface at the crank output where the flywheel and seals ride, so a worn sleeve can cause seal leaks or vibration if not replaced. A: Replacing the sleeve during bottom-end service keeps the crank interface within spec.

Q: Is special tooling required? A: Crankshaft sleeve installation typically requires a press and proper support, so professional installation is recommended on the 900 ACE engine.

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