420947573 Crankshaft Output Sleeve for Sea-Doo Spark 3Up HO 900 2017-2020

Crankshaft Output Sleeve for Sea-Doo Spark 3Up HO 900

This crankshaft output sleeve is a replacement component for the Sea-Doo Spark 3Up HO 900 engine, referencing part number 420947573, and is designed to fit over the crankshaft output to seal and mate with the drive system.

Overview

This crankshaft output sleeve is made for the Sea-Doo Spark 3Up HO 900 and carries the reference number 420947573. It fits onto the crankshaft output end where the engine meets the driveline, protecting against wear and keeping the seal surface true. Anyone servicing or rebuilding a Spark 3Up HO 900 crank assembly will find this sleeve covers the job.

Built For Performance

• Machined to fit the crankshaft output diameter
• Hardened surface to resist wear from the seal and driveline
• Reference part number 420947573 for easy cross-check
• Direct-fit design for the Spark 3Up HO 900 engine

Fits These Machines

• for Sea-Doo Spark 3Up HO 900, 2017-2020

On-The-Job Use

• Crankshaft rebuilds on 2017-2020 Spark 3Up HO 900 watercraft
• Replacing a worn or scored output sleeve
• Restoring proper seal contact on the crank end
• Driveline service that requires crank output removal

Specs At A Glance

Good To Know

Q: Do I need to remove the engine to install this sleeve? A: Replacing the crankshaft output sleeve typically requires accessing the crank assembly, so engine removal or partial disassembly is usually needed on the Spark 3Up HO 900.

Q: Is this an original Sea-Doo part? A: This is an aftermarket replacement for the Sea-Doo Spark 3Up HO 900 that references part number 420947573. It is not an original manufacturer part.

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