420931670 Power Valve O-Ring for Sea-Doo GTX DI 951 2001-2003

Power Valve O-Ring for Sea-Doo

This power valve O-ring (OEM cross-reference 420931670) seals the power valve assembly on 951 DI engines to keep exhaust timing consistent and prevent leaks.

Overview

This power valve O-ring is a replacement seal for the power valve system on Sea-Doo 951 DI engines. It helps maintain a tight seal at the power valve so exhaust gases stay contained and the valve operates as intended. This power valve O-ring is a direct-fit service part for riders maintaining their 2001 to 2003 GTX DI.

Built For Performance

• OEM cross-reference 420931670 for accurate fitment
• Seals the power valve assembly against exhaust gas leaks
• Helps maintain consistent power valve operation
• Fits 951 DI engine power valve applications
• Sold as a single replacement O-ring

Fits These Machines

• for Sea-Doo GTX DI 951, 2001-2003

On-The-Job Use

• Routine power valve maintenance
• Top-end rebuilds on 951 DI engines
• Replacing worn or hardened seals
• Restoring proper valve sealing after service

Specs At A Glance

Good To Know

Q: What does this O-ring do? A: It seals the power valve assembly on the 951 DI engine to prevent exhaust leaks. A worn O-ring can cause inconsistent valve operation.

Q: Should I replace more than one? A: Power valves are typically serviced in pairs, so inspect all seals during the job. Replace any that are cracked or hardened.

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