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2012 Polaris RZR 4 800 Robby Gordon Edition

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Namura Top End Piston Rebuild Kit 86.93mm STD Bore NA-50012K-672

Top End Rebuild Kit | SKU #NA-50012K-672 | MPN #NA-50012K

$249.50

  • New Part
free deliveryAverage free shipping time to your home 2-4 days
Contact us for a question. Phone: (304) 699-7572
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Availability: IN STOCK

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Specifications

ConditionNew
SKU#NA-50012K-672
MPN#NA-50012K
PartTop End Rebuild Kit
Piston Over Bore Amount0 mm
Engine Type4-Stroke
Piston TypeCast
Piston Diameter86.93 mm

Vehicle Compatibility

This part fits an additional 25 vehicles.
Please use the search box above to find your vehicle.
YearMakeModelSubmodel
PolarisScrambler XP 850Scrambler XP 850
PolarisScrambler XP 850Scrambler XP 850 LE HO EPS
PolarisScrambler XP 850Scrambler XP 850 HO

Description

Namura's Top End kit is ideal for replacing worn parts and making some upgrades. Machined Smooth heads, available for certain models, can increase horsepower and fuel economy while reducing carbon buildup.


Additional Note

Namura's Top End kit is ideal for replacing worn parts and making some upgrades. Machined Smooth heads, available for certain models, can increase horsepower and fuel economy while reducing carbon buildup.

Features

  • Top End kit includes: piston, rings, wrist pin, clips, top end bearing, and gasket kit
  • MOS2 (Teflon/Molybdenum) Coated Skirts - A rolled on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures
  • Machined Smooth Heads - Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Some tests have shown this feature can increase horsepower and fuel economy by up to 6%
  • Anodized Domes - Increases heat resistance and durability; pistons with anodized domes are 75% stronger than non-anodized pistons
  • Hypereutectic Casting Process - Provides higher silicon content for reduced expansion rates and additional wear resistance; it also has an ability to withstand higher cylinder temperatures
  • Piston Size: 86.93mm
  • Images are for reference purposes only

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