The Best Parts • The Best Performance • The Best Price

RZR800 RZR 800 Big Bore Kit 83mil Cylinder +3 820cc Complete Top End Rebuild Kit

FITS ALL POLARIS RZR800 AND SPORTSMAN 800 YEARS AND MODELS!

83mm cylinder NO CORE REQUIRED!!
CP or JE forged big bore pistons**
Hi temp piston rings
Wristpins
Circlips
Head stud kit
Gasket kit
Valve stem seals
Installation instructions*
Stickers

**WE STOCK THE SAME PISTONS FROM JE CP AND WISECO SO THAT WHEN, NOT IF, BACK ORDERS OCCUR LIKE THE HAVE BEEN FOR THE LAST YEAR WE HAVE AN ALTERNATE PISTON TO SEND YOU THAT IS THE SAME QUALITY AND PRICE. THIS COSTS US A LOT OF MONEY BUT WE DO IT TO SERVE OUR CUSTOMERS ONLY. IF YOU WANT ONLY A CERTAIN BRAND PISTON JUST ASK!! Using head studs instead of the weaker OEM head bolts are a must with hi compression applications. Never buy new head bolts again after purchasing this kit! Pistons are designed for turbo application. Everything is new in the original packaging. Original manufacturers warranty applies*.

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Please check your order thoroughly when receiving it. If for any reason at all you are not 100% happy please contact us right away so we can help resolve the issue.

*We recommend that this be installed by a qualified mechanic with experience doing this type of work. Warranty does not cover any failure that is a result of improper installation, improper break in, improper tuning, or misuse. For any warranty to be considered the part(s) in questions must first be sent to us for inspection. We can not warranty anything based on phone calls or photos alone.

Photos Are For Example Only Images show product quality, components, and visual reference. Exact parts, brands, finishes, quantities, or packaging may vary by kit. Please read the full product description for exact details before purchasing.

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Professional Installation Required

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Notice Regarding Photos: Product photos used in our listings are for example only to show item quality, components, and visual reference. You will receive the correct quantity, size, and fitment for the specific kit listed. Exact brands, finishes, packaging, or small components may vary when equivalent-quality parts are used. Please read the full product description for exact details before purchasing.

Bearing Notice: In some cases, you may receive sealed bearings. If your application requires an open bearing, the seals can be removed when appropriate for the application.

Emissions & Race Use Only: Some products may be exempt from emission standards and requirements under 40 C.F.R. § 1051.620 and/or applicable California law. Certain parts are sold only for use with EPA-certified, purpose-built, nonroad vehicles used solely for closed-course, nonroad competition/racing. Installation may void the vehicle manufacturer's warranty and/or may be illegal in some locations. Buyer is responsible for confirming legal use in their application and location.

Warranty & Liability: Due to the nature of high-performance and racing applications, components may be sold without express or implied warranty of merchantability or fitness for a specific purpose except where specifically stated. BPRATV LLC shall not be liable for special, incidental, or consequential damages including loss of property, equipment, profits, or revenue resulting from sale, installation, or use of these parts. High-performance parts are not DIY items; work should be performed by a qualified, experienced mechanic.

Returns: Returns are accepted within 30 days for eligible items that are 100% complete, brand new, unused, uninstalled, and in original packaging. Items that have been installed, prepped, lubricated, sealed, modified, or used are not eligible. For warranty consideration, parts must be sent back for physical inspection. We do not warranty based on photos, emails, or third-party assessments.

Specialty Warranties: Certain specialty items, such as Cub cylinders or titanium fasteners, may have separate warranty terms. Any warranty does not cover improper tuning, installation, maintenance, or misuse.

Interchangeable Parts: Some kits may include interchangeable components or equivalent-quality substitutions to prevent backorder delays. Prices, included items, and listings are subject to change without notice.

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