Description

Restore your engine from top to bottom with the REV6 Engine Rebuild Kit for the Can-Am Outlander 850 (2016–2025). This all-inclusive kit gives you everything needed to rebuild the entire internals of your motor and return it to reliable operation.

All parts are manufactured to factory tolerances and inspected for quality before shipment. Because of that, you gain smoother rotation, restored compression, and reduced leakage. The kit includes crankshaft, piston kits, bearings, gaskets, seals, and cam chains. In addition, your order ships nationwide and carries a 1-year warranty, with an option to upgrade to a 2-year no-fault plan.

With years of experience in Powersports engines and parts, REV6 guarantees performance you can count on. Need torque specs or walkthroughs? Head to our REV6 Blog or check our FAQ section. You can also contact our team via the Contact page. Therefore, whether you’re in your garage or professional shop, this kit has the parts you need to complete the build with confidence.

This Kit Includes:

• (1) Complete Gasket Kit — Replaces OEM#: 420684167
• (1) Crankshaft — Replaces OEM#: 420219745
• (2) PTO Bearings — Replaces OEM#: 420233995
• (2) Main Case Bearings — Replaces OEM#: 4202233960
• (2) Case Bearings — Replaces OEM#: 420233965
• (1) Oil Seal Set — OEM-matched
• (2) Piston Kits — Replaces OEM#: 420686310
• (2) Cam Chains — Replaces OEM#: 420297063
• (1) Water Pump Seal — OEM-matched

Take Action

Order your Engine Rebuild Kit today and rebuild your Outlander 850 with confidence. Check our warranty policy and core return program for full coverage details.

Need help paying or shipping your kit? Explore our financing options or visit our Help Center. Because your build matters, we support you from order to install.

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