With our custom piston geometry, the porting is altered resulting in huge HP and Torque gains! This highly detailed manual is very useful and contains everything you need to repair . NOTE: This will address the issues associated with the OEM pistons! Complement the outstanding performance of your sled's 800 Cleanfire engine with the convenience of electric start. All Rights Reserved. The relatively short rods and pistons have been the cause of the short life of the stock pistons and rings. ", The guys at MCB have always been great to deal with and seem to always have the parts in stock , I really appreciate Matt and his staff taking the time to answer all of my questions over the phone similar to what a good parts-counter person would do at a respected dealership. Skip to content . If you are looking to take it to the next levelLook for the 858 Big Bore Kit OR the DROP IN KIT, RK Tek is located in Preston, Idaho and is owned and operated by Kelsey and Rex (hence RK). If it has 1500 miles or more, you're in need of this kit! All Rights Reserved. We find that the OEM Polaris Piston will NOT hold its form after a very short time of running. $49.88. Pro-Series forged pistons and available through this website or you can actually CALL and speak to a The stock 800 CFI motor runs a piston that is a total height of 2.885". Hoods-Side Panels. Performance parts and accessories for Polaris PRO RMK 800. They will NOT fail unless they are subjected to a low fuel or high heat condition! Learn more. POLARIS 800 AXYS CFI ENGINE DURABILITY REBUILD KIT W/ CRANKSHAFT 2016-18. NOTE:RKTTop end gasket kit is comprised of the Base Gasket, Y -Pipe Gasket, Exhaust Valve Gaskets (Non-HO ONLY), and Inner Compression O-rings. Our engine durability kit was designed to last. We also include a complete set of eight longer cylinder bolts and two longer dowel pins. Independent dyno reports have shown HP increases in the 15-20HP range. Good to see you here, Dan. This allows the engine to produce more power and rev quicker. ALL other kits out there REMOVE lower skirt support by shimming the cylinder up. NOTE: ALL pistons come with Rings, Wrist Pin, and Circlips! The Polaris factory piston is great quality vs others that say there better? C $100.47. Instruction Sheets: Rev 6 requires a core or refundable core charge before your new engine or transmission ships. Smooth. or 2800 us approx. Engine Type: Liberty Displacement: 795 cc Bore x Stroke: 85 x 70 mm Cylinders: 2 Engine Cooling: Liquid with Bypass Carburetion: 2 Cleanfire Injection Ignition: . If running 0-5000' you must run an SLP Reflash Tuner Part #70-800. Due to the added case volume, you will see a 2-3 HP gain! If you are ordering cheater heads, we will need to have your OEM heads to make the modifications. If you have an account, sign in with your email address. Due to the added case volume, you will see a 2-3 HP gain! Please note: Most parts are now available for purchase online, but as always you can also purchase them at your local dealership. Includes pistons, rings, circlips, wrist pins, cylinder bolts, cylinder spacer, longer alignment pins, & 2 base gaskets. Genuine MCB Stage-2 rebuild kit for ALL 2013-2020 Polaris 800's. _______________________________________________________________________________________. We have found it common to see the piston to cylinder wall clearance DOUBLE in less than 1000 miles.. Join Waitlist. Please see below to learn more about our solution! learn more, 801-489-8697 The REV 2 Drop In Kit was dyno'd on 2 different engines (before and after) at Dyno Tech Research in 2014 and 2015 and showed a max power gain of 21HP with the STOCK Exhaust System and 91 octane PUMP GAS! 3. What You Get: Rev6 offers quality parts that are proven to last. engine kit for the do-it-yourselfers. years. No "gimmicks" that claim to address the issues but really do nothing. . Free Shipping on all Domestic Orders International will use Ebay Global Shipping Here at Northern Crankshafts we have been in the Power Sports Business for over 36 years and have seen it all, this kit meets our HIGH E xpectation level of product quality. Headlight Delete Kits. "Real people with real experience and Professional! Our engine durability kit was designed to last. SKU:SD2692910 NEED HELP? This is a full top end kit that is essentially an install and go kind of kit. MCB Stage Kits - Customers asked and we responded with Quality and Value. ____________________________________________________________________________________________________. If you place your order there is a $750-dollar core charge if you would like to have us send your new kit before we receive your core cylinder. On all models, we recommend pre-mixing your fuel at 100:1 in the tank when possible. PRIMARY CLUTCH SPIDER REBUILD KIT POLARIS AXYS PRO RMK 600 800 850 2011-2020 . See the "HG7 cylinder finish" section to the right for more details on why you should want the HG7 finish. Array $460.00 Snowmobile Make: Model: Year: Options: (Choose One or More) Wrist Pin Bearings (Pair) +$45.00 Team Rooster Weights +$210.00 Boondocker Controller Box +$455.00 Power Commander Controller Box +$495.00 Put my drop in kit in today, nice stuff. Can't wait for good snow now. (14.5 lbs on RMK, RMK Assault and SKS models) and provides an additional 12.4 horsepower increase over stock. If you need to order only 1 piston, Please call the shop to order. Limited quantities available - Please call MTNTK Performance to order 1-208-652-0122. ______________________________________________________________________________________________. Use tab to navigate through the menu items. While we can not address ALL the issues we see with this engine we can address a very big one in the piston design.. and that is what we have done with this offering. (14.5 lbs on RMK, RMK Assault and SKS models) and provides an additional 12.4 horsepower increase over stock. Rev6 offers quality parts that are proven to last. The MTNTK "FIX KIT" or "DURABILITY KIT" is the proven solution to the piston failure that is common in the 2008 to 2014 POLARIS 800 engine. The RK Tek Pistons were a full 27 grams lighter and exactly the same weight to the gram. Item: 323454969454 We design the piston that should have been installed from the factory. This kit WILL outperform ANY other "Bolt On" product you can buy for this engine! The RK Tek Line of Customs Pistons are VERY Unique ALL pistons are designed from a blank sheet of paper and uses only the highest quality of components. No tuner box. We stand behind our new and remanufactured parts with a 1-yr warranty. $49.99. Even when brought up to 4500-5500 rpm the temp would slowly climb to 140F. The REV 1 kit closer to 9HP and the REV 2 can get 16-18HP BUT will require an aftermarket pipe. We also use titanium nitride coted rings for faster break-in and longer life. Big Bore Cylinder Kit - 61006-K01 Cylinder Works $1155.56 Part #: 1402198 Mfg Part #: 61006-K01 Standard 93mm Bore Cylinder Kit - CW60007K01 Cylinder Works $751.16 Part #: 1402206 Mfg Part #: CW60007K01 Standard Bore 93mm High Compression Cylinder Kit - CW60007K01HC Cylinder Works $888.76 Part #: 1402207 Mfg Part #: CW60007K01HC You do NOT have to treat these pistons any different (in any way, shape or form) than your stock piston! Condition: New, Manufacturer Part Number: 2207373, Brand: Polaris, Wiseco, Winderosa, Warranty: No Warranty Piston side loading is reduced due to our unique piston's weight. NOTE: Price is for 2 pistons. Polaris Patriot 850 Dual Ring Direct Replacement Pistons. Hoods-Helium. 10lbs boost 100LL. Killer parts, always goes together well and their Tech is the best!". Excellent communication, 2 week turn around and it runs better than when I bought it new! Made in America Custom Built Polaris 850/9R Complete Crankshafts. When I replaced the stock ones, they were due - skirt clearance was at limit, some ring flaking. People always state "I pulled my OEM pistons and they LOOKED fine and compression reading was still in spec! Great work! Running Boards-ProTube. Finally used MCB's kit and have over 500 on this kit!, WAY smoother running! You must log in or register to reply here. Brand New. First for my 800 and now My 1000. You are using an out of date browser. Reliability is NOT compromised in any way, shape, or form and the cost is VERY affordable. Engine Kits are designed and assembled by our Master engine technicians DE. No fueling changes required above 5000. We, purposely, designed this kit to perform using the components! 4300km on mine before it needed a rebuild. - Completely remanufactured crankshaft with all new components, bearings, new pump drive gear and seals. Speedwerx Aluminum Panel Vent Kit Polaris AXYS PRO RMK 850 800 600 2016-2022 $162.95 $12.45 shipping Only 1 left! AXYS 800 H.O. - '15-17 If you are looking for the best performance products on the planet for your AXYS 800 H.O. . learn more, 801-489-8697 $1,595.58 This package features a SLP Single Pipe Set and SLP Power Dome Billet Heads and an SLP Reflash Box (for elevations below 5000' only). No more "SLOPPY" OEM piston with poor piston geometry. AXYS RMK 800 AXYS RMK 600 PRO RMK 800 . Premium quality rotating kit Polaris 800 Axys, Rush, RMK, Pro-R, RMK Pro, Switchback assault. 2.6% negative feedback. Tried and true. Top Rated Seller Top Rated Seller. This lack of lower skirt support is a major contributor to why the stock pistons FAIL! . EPI also offers high quality replacement driveline parts such as Axles, U-Joints, CV Joints, Front End and Suspension parts, Brakes and more. Sled rips, turbo kit has been flawless. 2007-2016 Polaris Switchback RMK IQ dragon Rush 800 heel primary clutch weights. MCB Engine Rebuild Kits STAGE - 2 POLARIS, Browse MCB Engine Rebuild Kits STAGE - 2 POLARIS, MCB Stage-2 POLARIS 850 PATRIOT / AXYS 2019-2022, MCB Engine Kit - STAGE 2 - POLARIS 800 Dragon RMK 2008-2010, MCB Engine Kit - STAGE 2 - POLARIS 800 Pro-R Switchback, Assault, Rush, RMK 2011-2012, MCB Engine Kit - STAGE 2 - POLARIS 800 Pro-R Switchback, Assault, Rush, RMK, XCR, Ayxs, Pro-S, 2013-2020, MCB Engine Kit Stage-2 Crankshaft & CAST DUAL-Ring Piston Kit 800 RMK 2000-2005, MCB Engine Kit Stage-2 Crankshaft & DUAL-Ring FORGED Piston Kit 800 RMK 2000-2005, MCB Engine Kit Stage-2 Crankshaft & CAST DUAL-Ring Piston Kit POLARIS 700 IQ/RMK/SWBK 2007-2010, MCB Engine Kit Stage-2 Crankshaft & DUAL-Ring FORGED Piston Kit POLARIS 700 Dragon/RMK/IQ 2007-2010, MCB Engine Kit Stage-2 Crankshaft & CAST DUAL-Ring Piston Kit 600 2007-2014, MCB Engine Kit Stage-2 Crankshaft & DUAL-Ring FORGED Piston Kit 600 2007-2014, MCB Engine Rebuild Kits: STAGE - 2 SKIDOO, MCB Engine Rebuild Kits: STAGE -2 ARCTIC CAT, MCB Engine Rebuild Kits STAGE - 3 POLARIS, MCB Engine Rebuild kits: STAGE - 3 SKIDOO, MCB Engine Rebuild kits: STAGE - 3 ARCTIC CAT, MCB Engine Rebuild kits: PLATINUM SERIES - SKIDOO, Polaris UTV / ATV Engine Performance / Race, Kawasaki Watercraft Stage 1 Top End piston kits, Watercraft Stage 1 Top End Piston kits Kawasaki, Polaris, Sea Doo, Yamaha and Tigershark. Be a Subscriber. When that time comes, or if you want to ensure your engines durability today, install our new Engine Durability Kit! We also have found that the ,annoying, low RPM vibration (handle-bar "death shake") is gone with the install of these pistons. Learn more sku:RZRXPP CNC machined from 6061 billet aluminum. Since the injector sprays that side of the pistons, the fuel washes the oil off. You do NOT have to treat these pistons any different (in any way, shape or form) than your stock piston! Each kit includes information sheets with info on how to properly break in your new top end. Free shipping. FINDINGS: We find that the OEM Polaris Piston will NOT hold its form after a very short time of running. There is no RPM change with this kit. After MANY tear-down and inspections, these kits have PROVEN to be solid and, more importantly, to fix the issues that are associated with running the OEM piston. Brand new HPR PTO crankshaft end for all 2015-2019 Polaris 800 AXYS 324358275021. For the "Cheater Head" option none of this applies. For a better experience, please enable JavaScript in your browser before proceeding. Yes, that's right, RK Tek draws results from "real world" testing, 1245 Industrial Park Rd.Preston, ID 83263 Phone: 208-852-3221, Copyright 2017 RK Tek - All Rights ReservedCreated by Mountain West Web Design. This is simply a sales "gimmick". The Stage 3 package from SLP is a solid setup for any natural aspiration snowmobile enthusiast! We also include a complete set of eight longer cylinder bolts and two longer dowel pins. 2016-20 Polaris AXYS 800 RMK Clutch Kit with Adjustable Weights. Please see below to learn more about our solution! Add to cart. These gaskets are not part of the piston ONLY kit but are available in the options. Awesome Dan! POLARIS PRO 800 R CRANKSHAFT ENGINE REBUILD KIT 2011-15 CFI RMK RUSH IQ GASKETS (Fits: 2016 Polaris Pro RMK 800) (1) $999.99 Free shipping or Best Offer Only 2 left Rebuilt Polaris 800 CFI Crankshaft 2008-2016 Dragon RMK Switchback Pro 2205649 (Fits: 2016 Polaris Pro RMK 800) $749.99 $45.59 shipping C $132.07. Our custom piston HOLDS its tolerances.. Can't say that for many of the other kits.. and we responded. Rev6 offers quality parts that are proven to last. Turned the oil pump up one full turn and running 91 octane on the non eth resistor. There are yet no reviews for this product. NOTE: This REV 2 kit WILL require a fuel controller (Boondocker OR Power Commander) AND will require aftermarket reeds (Boyesen or Vforce) AT any elevation BELOW 3500ft. Heat is one of the primary causes of skirt collapse and skirt collapse is ONE of the primary issues with the OEM design.. We, purposely, designed these kits to perform using the stock exhaust components! Besides the skill and experience, it takes a lot of balls to "personally" warranty any motor for 3yrs in this sport. It gave me all the confidence in my 900 rebuild! Compression reduced and so is horsepower. Complete with everything you need to get on snow. 2016 POLARIS PRO RMK 800 AXYS QUICK DRIVE BRAKE ROTOR / DISC DISK. We have measured 100's of these cylinders and NONE of them have been out of spec! POLARIS 800 CFI-2, CFI-4 COMPLETE ENGINE DURABILITY REBUILD KIT 2016-2018 800 Axys, 800 Dragon, 800 Assult, 800 RMK Hassle Free, Helping you SAVE MONEY and TIME!! Super high amount watching. The Fix Kit. These gaskets are not part of the piston ONLY kit but are available in the options. This kit reduces weight by 13 lbs. Yes, these fit the new HO Engine.No "gimmicks" that claim to address the issues but really do nothing. Show details. EPI Clutch Kits and Drive Belts are the #1 aftermarket choice by more dealers, racers and enthusiasts.