Description

Give your Outlander’s top end a solid refresh with the REV6 Top End Refresh Kit. This kit includes both piston ring kits and a full gasket set to help restore compression, reduce blow-by, and improve performance.

All parts are built to factory tolerances and inspected before shipping. As a result, you’ll get tight, reliable sealing and long-term durability. This kit ships nationwide and includes a 1-year warranty. You can also upgrade to a 2-year no-fault plan. With years of experience in Powersports engines and parts, REV6 ensures that each component performs where it counts.

Need torque specs or install steps? Visit our REV6 Blog for guide content or check our FAQ section for quick answers. You also can contact our team directly via the Contact page. Therefore, whether it’s a routine refresh or a rebuild, this kit gives you the parts you need.

This Kit Includes:

• (1) Top End Gasket Kit — OEM-matched
• (2) Piston Ring Kits — Replaces OEM#: 420686314

Take Action

Order your Top End Refresh Kit today and bring new life to your Outlander 850’s engine. For coverage info, check our warranty policy or our core return program.

Need payment options or shipping support? See our financing options or visit our Help Center. Because your engine matters, we make the rebuild process smooth from order to install.

Thank you for choosing REV6 — trusted by riders who expect precision, durability, and performance from their Powersports engines and parts. We proudly support veterans and servicemembers with exclusive discounts as our way of showing appreciation.