Polaris 800 HD XP Complete Engine Rebuild Kit – Top & Bottom End Assembly

🛠️ Bring your Polaris 800 motor back to life with this complete top and bottom end rebuild kit, designed for strength, longevity, and performance. Whether you're riding a RZR, Sportsman, or Ranger, this kit fits all Polaris 800 models and years.

✅ What’s Included:

• Stock bore cylinder

• Wiseco, Wossner, CP, or JE forged pistons (based on availability)**

• Nitrite-coated piston rings

• Chrome wristpins & circlips

• Aftermarket RZRs camshaft

• Push rods & hydraulic lifters

• Hotrods HD crank assembly with rods

• Kibblewhite top hat valve stem seals

• Kibblewhite valve spring kit

• Kibblewhite Black Diamond intake & exhaust valves

• Oil pump with rotors

• K&N high-performance oil filter

• NGK Iridium spark plugs

• Water pump shaft & bearing

• Crank balancer with roller and plain bearings

• Crank balancer plain bearings

• Complete gasket kit

• MLS head gasket

• Full oil seal kit

• Water pump mechanical seal

• Maxlock 4135 alloy steel head stud kit – LIFETIME WARRANTY*

📦 Fitment:

• Fits all Polaris 800cc ATV and UTV models, including:

  • RZR 800 (Standard, S, 4, and XC)

  • Ranger 800 (XP, Crew, HD, 6x6, LE, and EFI)

  • Sportsman 800 (EFI, X2, Touring, and 6x6)

• Years: All production years for each model

🛡️ Warranty Info:

• 1-Year Limited Manufacturer Warranty

• Maxlock head studs come with LIFETIME WARRANTY

• All parts are new and in original packaging

• Built with proven performance components for reliability and power