290935736 Rotary Shaft Gear for Sea-Doo Sportster 720 2000

Rotary Shaft Gear for Sea-Doo Sportster 720

This rotary shaft gear is a replacement driveline component that transmits power through the jet pump assembly, and it is referenced under OEM part number 290935736.

Overview

This rotary shaft gear is made to fit the Sea-Doo Sportster 720 driveline and replaces a worn or damaged gear in the pump. The rotary shaft gear keeps power delivery smooth so the impeller turns reliably under load. It suits Sea-Doo owners servicing their own jet boat around maintenance season.

Built For Performance

• OEM cross-reference 290935736 for correct part matching
• Cut gear teeth shaped for steady load transfer
• Mounts in the rotary shaft position inside the pump
• Suited to 720 engine driveline setups
• Built to handle regular in-water marine use
• Replacement fit for the listed Sportster 720 application

Fits These Machines

• for Sea-Doo Sportster 720, 2000

On-The-Job Use

• Jet pump driveline repair and gear replacement
• Restoring propulsion after gear wear or tooth damage
• Garage or shop rebuilds on Sportster jet boats
• Routine driveline checks during seasonal service
• Swapping a noisy rotary shaft gear before shaft damage spreads

Specs At A Glance

Good To Know

Q: Is this sold as a set or individually? A: This listing covers the rotary shaft gear as described under part number 290935736. Check the mating gear and shaft while the pump is apart so worn pieces are handled at once.

Q: What should I verify before buying? A: Confirm the OEM number on your original gear and match it to your model and year. Fit can vary with pump revisions and serial number.

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