Crankshaft Assembly for Sea-Doo SP 720 1997

Crankshaft Assembly for Sea-Doo SP 720

This crankshaft assembly is a replacement engine component for the Sea-Doo SP 720, built to transfer piston motion into rotational power through the engine bottom end.

Overview

This crankshaft assembly is a complete bottom end component for the Sea-Doo SP 720 personal watercraft. It converts the up and down movement of the pistons into the rotating force that drives the impeller. Riders and mechanics rebuilding a 720 engine will find this crankshaft assembly a practical replacement for a worn or failed original.

Built For Performance

• Complete assembly with connecting rods and crank throws configured for the 720 engine layout
• Machined journals sized to accept standard 720 main and rod bearings
• Balanced rotating mass to help reduce vibration through the rev range
• Constructed from hardened steel for resistance to the loads seen in marine two stroke operation
• Designed as a drop in replacement for the 720 bottom end during a rebuild

Fits These Machines

• for Sea-Doo SP 720
• for Sea-Doo models equipped with the 720 engine for the 1997 model year

On-The-Job Use

• Bottom end rebuilds on the 720 engine
• Replacing a crank with worn rod bearings or damaged journals
• Restoring a watercraft that has suffered a bottom end failure
• Refresh builds before the riding season begins

Specs At A Glance

Good To Know

Q: Does this crankshaft assembly come with bearings installed? A: This is a crankshaft assembly, so check the listing photos and details for exactly what is included before ordering. Reuse or replace bearings according to the condition of your existing parts.

Q: Can I install this crankshaft assembly myself? A: Installing a crankshaft requires splitting the cases and setting proper clearances, so it is best handled by someone with two stroke marine engine experience. Confirm the engine model and year match before starting the job.

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