Description

Do a full internal refresh with one kit using the REV6 Master Engine Refresh Kit for 2016–2025 Outlander 850 models. This kit covers both bottom and top end parts, giving you a thorough refresh in one package.

Every included part matches factory tolerances and is inspected for quality. As a result, you’ll rebuild with confidence, restore smooth performance, and reduce potential wear. The crank, bearings, gaskets, piston kits, seals, and cam chains all work together to keep your engine running tight. You’ll receive a 1-year warranty on your kit, and you can optionally choose a 2-year no-fault upgrade.

Because REV6 has built countless Powersports engines and parts, we know what works in the field. Need torque specs or guidance? Head over to our REV6 Blog for tutorials or check our FAQ section for quick answers. If you need direct help, use the Contact page. Therefore, whether you’re doing a full rebuild or a strategic refresh, this kit gives you all the parts and peace of mind you need.

This Kit Includes:

• (1) Complete Gasket Kit — Replaces OEM#: 420684167
• (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) Cam Chains — Replaces OEM#: 420297063
• (1) Water Pump Seal — OEM-matched
• (2) Piston Kits — Replaces OEM#: 420686310

Take Action

Order your Master Engine Refresh Kit now and get everything necessary to rejuvenate your Outlander 850’s engine. For more details about coverage and returns, view our warranty policy or our core return program.

If you want flexible payment or shipping help, check out our financing options or visit the Help Center. Because your rebuild matters, we support you every step from order to install.

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