274000612 Power Valve Spring for Sea-Doo Challenger 1800 800 1998-1999

Power Valve Spring for Sea-Doo

This power valve spring (OEM cross-reference 274000612) fits 1998-1999 Sea-Doo Challenger 1800 boats powered by the 800 engine and works within the RAVE exhaust power valve system to control valve actuation for smoother power delivery.

Overview

This power valve spring for Sea-Doo is a direct-fit replacement for the RAVE exhaust valve assembly on the Challenger 1800 with the 800 engine. It manages valve return tension so exhaust port timing opens correctly across the rpm range. Built for jet boat owners replacing a worn, weakened, or broken power valve spring for Sea-Doo 800 engines.

Built For Performance

• Replacement power valve spring for the RAVE exhaust system
• OEM cross-reference 274000612 for direct part matching
• Maintains correct valve return tension for consistent exhaust timing
• Restores factory power delivery after spring fatigue
• Compact coil design sized for the 800 engine valve assembly
• Simple drop-in replacement during routine valve service

Fits These Machines

• for Sea-Doo Challenger 1800 1998
• for Sea-Doo Challenger 1800 1999

On-The-Job Use

• Rebuilding RAVE exhaust power valves on the 800 engine
• Restoring throttle response after a weakened spring
• Routine top-end service on Challenger 1800 jet boats
• Replacing a broken or seized power valve spring

Specs At A Glance

Good To Know

Q: How do I know if my power valve spring needs replacing? A: Symptoms include sluggish acceleration, erratic power delivery, or a valve that sticks during inspection. A spring that has lost tension or shows visible wear should be swapped out.

Q: Is this an OEM Sea-Doo part? A: This is a replacement power valve spring with OEM cross-reference 274000612, not an original Sea-Doo product. Confirm the part number against your machine before ordering.

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