Cylinder Works Big Bore 82.00mm Cylinder Kit 61002-K02 — Polaris Ranger / Sportsman 800 2011-2016

Cylinder Works Big Bore Cylinder Kit -  82.00mm - 61002-K02 — Polaris Ranger / Sportsman 800 2011-2016

Product Description

Unlock more power for your machine with the Cylinder Works Big Bore Cylinder Kit. Engineered to provide a significant performance boost, this 82.00 mm kit increases your displacement to 808cc, giving your Polaris Ranger or Sportsman the extra torque and horsepower needed for demanding terrain. Designed for riders who refuse to compromise on quality, this kit is the perfect solution for a complete engine overhaul.

Every kit includes high-quality Vertex pistons, specifically matched to the cylinder to ensure exceptional longevity, optimized performance, and significantly reduced engine noise. The aluminum cylinders feature a durable nickel silicon carbide (NSC) plating, offering superior heat dissipation and wear resistance that rivals OEM standards. With a simple drop-in installation that requires no machine work, this U.S.-made kit is the professional's choice for reliable engine upgrades.

Top Features: Cylinder Works Big Bore Cylinder Kit
o 82.00 mm Big Bore kit increases displacement to 808cc
o Includes matching Vertex pistons for superior longevity and quiet operation
o Durable nickel silicon carbide (NSC) cylinder sleeve plating
o Complete kit: includes cylinder, pistons, rings, pin, clips, and top-end gaskets

Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.

Fitment List

Year Range	Vehicle Brand	Vehicle Model & Sub-Model
2011	Polaris	Ranger 800 MVRS
2011-2016	Polaris	Ranger 6x6 800
2011-2014	Polaris	Ranger 800 Crew
2011-2014	Polaris	Sportsman 800 EFI
2011	Polaris	Sportsman 800 EFI 6x6 Big Boss
2012	Polaris	Ranger 800 XP
2012	Polaris	Sportsman Forest 800
2012-2014	Polaris	Sportsman 800 6x6 Big Boss
2013	Polaris	Ranger 800 4x4
2013	Polaris	Ranger 800 EFI Mid-Size LE
2013-2014	Polaris	Ranger 800 EFI Mid-Size
2014	Polaris	Ranger 800 EFI

Frequently Asked Questions

Q: Does this kit require any machine work to the crankcase?
A: No, this Cylinder Works kit is designed as a drop-in upgrade. It is machined to fit your stock crankcase without any additional modification, making the installation process straightforward.

Q: What is the compression ratio with this big bore kit?
A: This kit maintains a 10.2:1 compression ratio, which provides an excellent balance of increased power while remaining reliable for trail and utility use.

Expert Pro-Tip: When installing a big bore kit, always ensure your fuel system is clean and consider a fuel controller adjustment if necessary to accommodate the increased displacement. Break in the new cylinder properly by varying the RPMs during the first few hours of operation—this is critical for seating the rings to the cylinder wall for a long-lasting, high-compression seal.

Recommended Pairings:
o All Quads/ATV Performance Parts
o Premium Motorcycle Chemicals & Coolants
o Motorcycle Tools for Engine Rebuilds

At Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.

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