Description

A weakening top end on the Polaris RMK 600 snowmobile often shows up as sluggish throttle response, harder cold starts and a noticeable drop in power. Since these symptoms usually come from worn pistons or aging bearings, replacing those parts is one of the most effective ways to bring the engine back into shape. This Top End Rebuild Kit includes the key components needed to refresh your RMK’s upper-end performance.

The kit comes with matched piston kits complete with rings, wrist pins and circlips. It also includes new needle cage bearings and a complete top-end gasket kit. These parts work together to restore compression, reduce internal wear and improve overall engine response. Riders planning a larger overhaul often compare this kit to our RMK 600 complete rebuild option when deciding how far to go.

If you need guidance on installation or model compatibility, our FAQ page covers common questions. Every parts kit includes our 1-year, no-questions-asked warranty, and you can review the details within our warranty policy. New customers can also use the Help Center for shipping and rebuild preparation. If you need direct assistance, reach out through the contact page. For more snowmobile maintenance and engine insight, explore our blog.

THIS KIT INCLUDES

• (2) Piston Kits (rings, circlips, wrist pins) — Replaces OEM #: 2204122, 2203899
• (2) Needle Cage Bearings — Replaces OEM #: 3514365
• (1) Top End Gasket Kit — Replaces OEM

FITMENT

• 2008, 2010–2011 Polaris RMK 600
• 2009 Polaris RMK Shift 600
• 2011 Polaris Shift 600

Order your RMK 600 top-end rebuild kit today and get your sled pulling strong again. Veterans and active servicemembers can also ask about the discounts we proudly offer.