Polaris 15-20 RZR 900 Engines
We make RZR 900 engines better than new
We know your RZR 900 engine
Every RZR 900 engine we build is done by one of our master technicians. With over 35 years of experience, your RZR 900 engine is in great hands.
All RZR 900 Engines Include:
- A full inspection of engine core
- Clean, blasted/inspected engine cases
- Remanufactured cylinder head
- Crankshaft
- Intake camshaft
- Exhaust camshaft
- Connecting rods
- Nickel Plated Cylinders
- Counterbalance shaft
- Counterbalance bearings
- Main bearings
- Crankshaft bearings
- Crankshaft bearings
- Valve Guides
- Intake & exhaust valves
- Valve stem Seals
- Valve Seats
- Valve springs
- Timing chain
- Oil pump chain
- Oil pump
- Timing guides
- Timing tensioner
- Seals & gaskets
- Assembly by a master technician
- Quality control inspection
All RZR 900 engines include the following upgrades:
- Upgraded moly pistons
- Upgraded manganese bronze valve guides
- Better main bearing specifications
- Better Connecting rod bearing specifications
- Better Piston to cylinder wall tolerances
- Upgraded timing guides
- Modified cam caps (better oiling capabilities)
- High temperature valve stem seals
We have RZR 900 engine options to fit your needs:
High Performance Engines
Rev6 Mud Mayhem
This engine is for our hard core mudders!Need as much bottom end power as possible? our mud mayhem engine is designed for just this.Engines come with larger duration camshafts to improve throttle response, lower engine exhaust temperatures and increase horsepower.
11.1 High comp forged pistons that improve engine response horsepower and efficiency.
Special KPMI Bronze valve guides are improved for less friction and wear at high rpms.
( Recommended clutch kit specifically designed for your riding style )
Customers are responsible for establishing their own tuning for all upgraded engines.
Rev6 Dune Reaper
Dune reaper is tailored specifically for our sand & dune riders!
Increased bottom end threw top end horsepower and torque that will allow you to tackle any dunes you point your RZR at!
The dune reaper engine package will include CNC porting that is designed for 15-20+ horsepower, efficiency and torque.
High compression 11.1 forged pistons that are lighter, stronger that will also increase horsepower and torque.
High duration stage 2 camshafts for better heat transfer intake and exhaust flow while improving horsepower.
Bronze nickel valve guides improved for less friction at high rpms.
( Recommended clutch kit specifically designed for your riding style )
Customers are responsible for establishing their own tuning for all upgraded engines.
Rev6 Trail King
This engine is specifically designed for the avid trail rider!
Increased bottom end threw top end horsepower and torque that will allow you to tackle any dunes you point your RZR at!
The Rev 6 trail boss engine package will include CNC porting that is designed for 13-15+ horsepower, efficiency and torque.
High compression 11.1 forged pistons that are lighter, stronger that will also increase horsepower and torque and low end response.
Bronze nickel valve guides improved for less friction at high rpms.
( Recommended clutch kit specifically designed for your riding style )
Customers are responsible for establishing their own tuning for all upgraded engines.
625cc Power House Big Bore
Stock engine with Big bore +5 over cylinder.
that improves horsepower and efficiency 20% over stock with huge power gains.
Upgraded crankshaft for more durability to handle the extra horsepower.
Special Bronze valve guides for improved performance, less friction and wear at high rpms.
( Recommended clutch kit specifically designed for your riding style )
Customers are responsible for establishing their own tuning for all upgraded engines.
Rev6 Rock King
Engine was designed for guys that like to rock crawl and hit the trails!
High comp pistons for more Horsepower, better throttle response and efficiency.
Custom designed clutch kit for your elevation, tire size and riding style. improves belt life and performance immensely.
Manganese bronze valve guides improved for less friction at high and low rpm’s.
No tuning required.
Rev6 Big Turbo
This engine is designed to hold up to 28+ pounds of boost.
Looking for an aftermarket turbo kit that your stock engine cannot hold up to? Rev6 offers a complete long-block engine upgraded with Cp-Carrillo 4430 carrillology designed rods with stoutest rod H beam configuration offered on the market, Increased beam thickness, and durability.
Forged 2618 Cp-Carrillo pistons that will withstand high boost scenarios. Built with chromoly wrist pins, duel forced pin oilers, gas ports.
Upgraded Manganese Bronze valve guides are improved for less friction and wear at high and low RPMS.
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We are so confident in our craftsmanship that each Polaris 15-20 RZR 900engine 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 15-20 RZR 900 engine.
we build better engines!
Call Now 801-489-8697