SPI Power / Exhaust Valve for Ski-Doo many 1999-20 600 non-HO Replaces 420854371

Power/Exhaust Valve for Ski-Doo

This power/exhaust valve for Ski-Doo fits many 1999-2000s 600 non-HO models, replacing OEM part number 420854371, controlling exhaust port timing. It optimizes engine performance across the RPM range.

Overview

This power/exhaust valve is designed for Ski-Doo 600 non-HO snowmobile engines from the late 1990s through early 2000s. It replaces OEM part 420854371 and regulates exhaust flow to improve power delivery.

Built For Performance

• Direct replacement for OEM 420854371
• Improves throttle response and mid-range power
• Durable construction withstands exhaust heat
• Restores proper valve operation

Fits These Machines

• for Ski-Doo 600 non-HO (1999-2000s)

On-The-Job Use

• Replacing failed power valves on Ski-Doo snowmobiles
• Restoring lost engine performance
• Rebuilding top end of 600 non-HO engines

Specs At A Glance

Good To Know

Q: Does this valve include the solenoid or cable? A: No, this is just the valve assembly. The solenoid and cable must be reused or purchased separately.

Q: Will this fit Ski-Doo 600 HO models? A: No, this is specifically for non-HO models. HO models use a different valve design.

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