Polaris Ace 2017-2022 900 Engine 
We guarantee your engine will be as good as new. We stand behind our engines with a 1-yr. warranty. Rev6 also offers a 2 year, no-fault, no-questions-asked warranty for an additional $450. This means that for two years, we will replace your engine free of charge, no questions asked, if anything happens! We got you covered! At Rev6, we are committed to excellence in quality control. Every part, engine, and transmission goes through a rigorous quality assurance process. Experience the confidence that comes from our dedication to superior craftsmanship and reliability that Rev6 offers!

Your refurbished Rev6 engine includes the following features: 

• Standard No-Fault 1-year warranty with an optional 2-year No-Fault Warranty upgrade.
• 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.
• All components are cleaned, dismantled, inspected and repaired as needed.
• Cylinder head inspected, cleaned, sandblasted, decked, rebuilt, shimmed to manufacturer spec and undergoes a quality inspection.
• Exhaust valve guide replaced with manganese bronze valve guides for high RPM performance.
• Intake valve guides inspected and replaced as needed.
• Valves and valve seats 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. 
• Crankshaft main bearings and rod bearing are replaced with new high-babbit coated bearings.
• Cylinders are inspected for wear and damage. Worn cylinders are replaced with refurbished and hone finished nikasil coated cylinders.
• Pistons replaced with moly coated pistons and rings.
• Timing chain and oil chain inspected for stretch and wear, replaced as needed.
• Refurbished oil pump assembly.
• Fully inspected and machined engine cases, tested for journal wear, cracks, holes, or excessive wear.
• All gaskets and seals replaced.
• Engine assembled and torqued to manufacturer specifications.

Our engines undergo a thorough multiple inspections by master technicians and pass a stringent quality control process. We have over 60+ years of combined experience in the power sports industry.

Double inspection guarantee; your engine will be assembled by one master technician and inspected by another master technician to ensure your engine is as good as new.

Core Options: To receive the Rev6 engine, you will need to provide your old core or pay a refundable core charge of $1200.00. If your core is in good condition, the charge is fully refundable! If you have a good core to return, please give us a call. We also offer alternatives if you would like to avoid paying the refundable core charge and would like the new engine first, but this only applies to customers with a qualifying core for exchange.

Looking for more performance? Let’s help put more power to the wheels! Give us a call, and we can design a vehicle that offers more power and fun! Whether you want to maintain reliability while gaining extra power or prefer something more aggressive, We got you. Contact us, and we’ll set you up with something exceptional!

Lead Time: Engines typically ship within 5 to 10 days of order. For more accurate lead times, please give us a call.

Have more questions? Rev6 has a very experienced sales team that can help guide you in the right direction!