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POLARIS 11-17 RANGER 800 ENGINES

A Ranger 800 usually earns its keep long before engine wear starts showing up. If your Polaris Ranger 800 UTV is using oil, starting harder than normal, smoking, or losing the pulling power it used to have, it may be time to refresh the engine before downtime grows.

REV6 offers rebuild options built around how you use your side-by-side. Many customers choose to send in their original engine core because it often keeps the rebuild process moving, while refundable core options may be available when inventory allows. Every engine moves through evaluation, rebuild work, careful assembly, and final quality checks before shipment.

Every rebuilt engine includes our industry-leading 1-year no-fault warranty, with the option to upgrade to a 2-year no-fault, no-questions-asked warranty. Tracking information is provided after shipment so you can stay informed through delivery.

Answers Ranger 800 Owners Look For Before Rebuilding

What are early signs my Ranger 800 engine may need service?

Changes usually happen gradually. Lower compression, increased oil consumption, harder starts, reduced power under load, smoke, or unusual engine noise can all be signs it is time to evaluate the engine.

What rebuild path do most Ranger owners choose?

Many customers send in their original engine core because it often helps keep rebuild timing moving. Depending on inventory and project timing, refundable core options may also be available.

What should I expect during the first hours after installing a rebuilt engine?

Early operation matters. Monitor oil level before startup, avoid holding steady RPM for extended periods, vary engine speed during use, and follow recommended oil and break-in practices based on operating conditions.

How does REV6 help reduce uncertainty during the rebuild process?

Clear communication matters. Our customer service and sales teams help answer questions, explain next steps, and provide updates throughout the rebuild process.

What warranty protection comes with a rebuilt Ranger 800 engine?

Every rebuilt engine includes REV6’s 1-year no-fault warranty. Customers who want longer-term protection can also upgrade to the available 2-year no-fault, no-questions-asked warranty.

How will I know when my engine is coming back?

Once your rebuilt engine ships, tracking information is provided so you can follow delivery progress and better plan for installation and return to service.

WE KNOW YOUR RANGER 800 ENGINE

Every engine we build is done by one of our master technicians. With over 35 years of experience, your engine is in great hands.
All Polaris Ranger 800 Engines Include:
  • Full inspection of engine core
  • Clean, blasted/inspected engine cases
  • Remanufactured cylinder head
  • Nickel plated mono cylinder
  • Pistons & rings
  • Valve guides
  • Intake & exhaust valves
  • Valve seats
  • Valve stem seals
  • HD crankshaft
  • HD crankshaft
  • Crankshaft main bearings
  • Balance shaft bearings
  • Balance shaft
  • Camshaft
  • Lifters
  • Pressure relief dowel
  • Pressure relief spring
  • Complete gasket set
  • Water pump mechanical seal kit
  • Seals
  • Assembly by a master technician
  • Quality control inspection
All Polaris Ranger 800 Engines Include the Following Upgrades:
  • Upgraded moly pistons
  • Heat treated camshaft
  • HD twin Crankshaft
  • Modified pressure relief system
  • Better piston to cylinder wall specifications
  • High performance lifters
  • High temp valve stem seals

We have Polaris Ranger 800 engine options to fit your needs:
1-2 year warranty badge
We are so confident in our craftsmanship that each Polaris 11-17 Ranger 800 engine comes with a 1-year warranty. We offer free shipping inside the 48 continuous states and Canada.

Work with the best when it comes to your Polaris 11-17 Ranger 800 engine.

The REV6 Powersports team standing side by side in our REV6 shop in Utah

we build better Ranger 800 engines!

rev6sports logo

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