Built for Long-Term Reliability

If your Polaris Ranger 800 (2011–2017) is ready for a fresh start, this REV6 rebuilt engine delivers the strength, durability, and quality your machine deserves. We inspect and refurbish all the key internal components and critical surfaces to ensure reliability and performance in your motor. Because you depend on your Polaris Ranger, you should be able to count on the engine inside it.

Engine Core Requirements

Send your engine core or pay a refundable $1200 core charge. If your core passes inspection, we refund the full amount. Need your replacement engine before sending your core? Learn more about our Core Exchange Process.

This Engine Includes

• Standard No-Fault 1-year warranty with an optional 2-year No-Fault Warranty upgrade.
• All components are cleaned, dismantled, inspected and repaired as needed.
• We restore and reuse as many OEM parts as possible. We inspect and refurbish all OEM parts to guarantee high quality internals that keep your machine running reliably.
• Cylinder head inspected, cleaned, sandblasted, decked, rebuilt to manufacturer spec and undergoes a quality inspection.
• Valve guides inspected and replaced as needed.
• Valves and valve seats are recut/refaced to ensure tight seal, verified with vacuum test.
• Camshafts lobes and journals cleaned and polished, replaced as needed.
• Crankshaft is inspected and verified within OEM specs and, if needed, rebuilt with new rods.
• Crankshaft main journal bearings and balance shaft bearings are replaced with new high-babbitt coated bearings.
• Worn cylinders are replaced with refurbished and hone finished nikasil coated cylinders.
• Pistons replaced with new moly coated pistons and rings.
• Fully inspected engine cases, tested for journal wear, cracks, holes, or excessive wear.
• All gaskets and seals replaced.
• Engine assembled and torqued to manufacturer specifications.

Quality You Can Count On

Every engine is assembled by one REV6 master technician and inspected by another as part of our Double Inspection Guarantee. With decades of combined powersports engine experience, our team delivers engines that run stronger, cooler, and longer than stock.

Warranty & Support

Your engine comes with our standard 1-year warranty, with the option to add a 2-year no-fault warranty for total peace of mind. For installation guidance, tech help, or general questions, explore the Help Center or browse our FAQ.

Want to learn more about powersports engine care and upgrades? Visit the REV6 Blog for expert tips, or watch install walk-throughs on our YouTube channel. You can also review our Engine Rebuild Kit Guide for future projects.

Thanks for choosing REV6 — proudly serving riders nationwide with dependable powersports engines and parts. We’re honored to support U.S. veterans and servicemembers with special discounts.