Description

When the top end of your Polaris RMK 600 snowmobile reaches its limit, you’ll notice it in every ride. The engine may lack throttle snap, cold starts take longer, and heat builds faster than usual. This Complete Top End Rebuild Kit provides the full set of high-quality components you need to get the 600 Cleanfire engine back to dependable performance.

This kit includes Nikasil-plated cylinders, matched piston kits with rings, circlips and wrist pins, needle cage bearings, and a dedicated gasket kit for the top end. Together, these parts help restore sealing, reduce friction, and improve throttle response. Some sled owners also check out our RMK 600 Master Engine Rebuild Kit as an alternate option.

Each component is built to endure deep trails and cold starts. Snowmobile riders who log long miles know these machines run best once the worn top end is rebuilt properly. For questions about fitment or rebuild steps, our FAQ page offers helpful guidance.

All parts kits include our 1-year, no-questions-asked warranty. You can find full details in our warranty policy. If you’re buying parts online for the first time, our Help Center explains shipping, ordering, and preparation. Our team is also ready via the contact page, and extra snowmobile tips are available on our blog.

THIS KIT INCLUDES

• (2) New Nikasil Plated Cylinders — Replaces OEM #: 3021718
• (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 kit now and get your Polaris RMK 600 back to strong, reliable condition. Veterans and active servicemembers can also ask about the discounts we proudly offer.