We know your Polaris 800 engine. this kit makes 25-30 more horsepower on pump gas with torque numbers in the mid teens! Every Polaris RMK engine we build is done by one of our master technicians. Deep powder, tight trees and long days are what this 2012 Polaris 800 Pro RMK 155 is used to. it may be lower on stock power but the 860 brings it to life where it should be! With over 35 years of experience, your snowmobile engine is in great hands. Hi, I have a 2012 pro rmk 800 163, I have 2500 miles on the engine and looking to do a top end rebuild but not sure what the best brand to go with for the kit, I've seen a lot on spi and wiesco, does anybody have any thoughts or preferences on which one I should do? After this we suggest our Tied stage 2 clutch kit, BMP Pipe, and Power Commander 5. For your first mod we would suggest our billet head kit as the stock Polaris head has a very inefficient design. We offer free shipping inside the 48 continuous states and Canada. Polaris 08-10 RZR 800 Premium Engine $2500 We are so confident in our craftsmanship that each of our Polaris 08-10 RZR 800 engines come with a 1 year warranty. Find everything you need to maintain and repair your Polaris snowmobile. All Engines Include: Newly rebuilt crankshaft (indexed and trued to better than OEM specifications) ... 11-15 Polaris Pro 800 Engine $3050. Access the maintenance schedule, lube specifications chart, maintenance checklist and shop for snowmobile OEM service and replacement parts including lubricants, oil, brake fluid, all season grease, antifreeze and fogging oil. (2) 2 product ratings - 2008-2009 POLARIS 800 REPLATED CYLINDER RMK PRO ASSAULT DRAGON 3021843 08 09 C $706.05 HPR WISECO TOP END FIX KIT 2015-2018 POLARIS 800 AXYS RMK RUSH PRO EDGE ASSAULT This is a complete Stage 3 rebuild kit for the 2012-2015 Polaris 800 monoblock Switchback / RMK all 2012/15 monoblock CFI motors. I have always been very impressed with my Pro when it came to handling, comfort for the price. the polaris motor has a lot of potential! Full Gasket Kit contain all necessary engine gaskets for a complete rebuild: includes all head, base, intake, exhaust gaskets or O-rings, plus crankshaft end seals and power valve gaskets if required. Any help is appreciated, thanks $799.99. THIS LISTING IS FOR 1 POLARIS 800 CFI ENGINE REBUILD KIT WITH CRANKSHAFT FOR 2011-2016 ENGINES. View Details. This kit is designed for improving the reliability / … Free shipping. This head kit can be combined with the durability kith without an EFI controller (ethanol setting recommended). THIS CRANKSHAFT WAS PURCHASED FROM MY FRIEND MR. HEDLUND IN MN. Full Gasket Kit by Winderosa®. HE SAYS THIS CRANKSHAFT IS A REMAN WITH ALL NEW OEM POLARIS PARTS. Polaris Snowmobile Rebuild Kit : View Cart Empty Cart Check Out : ... 800 PRO RMK 13-15 800 DRAGON RMK 13-15 ELECTRA COATED. it has killer throttle response for boon docking, and the horsepower pulls hard up the mountain! 2011-2015 Polaris PRO RMK 800 New Crankshaft Upgraded Assault Crank Assembly. Living in Idaho has spoiled me with some of the best riding on the planet.