Namura Technologies NA-40013K Top End Repair Kit - Standard Bore 101.97mm

★★★★★ 4.3 18 reviews

$165.22
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$165.22
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Free shipping Free 30-day returns

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Management number 234008394 Release Date 2026/06/27 List Price $66.09 Model Number 234008394
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A top-end rebuild can help to improve the performance of your ride, keeping it running in peak condition. Namura's Top-End Kits include everything you need to get your ride operational again; pistons, a top-end gasket kit and wrist-pin bearings (where applicable) are all included in this convenient, time saving kit. Why replace your cylinder when you can replace the piston for a fraction of the cost and time? Namura offers direct replacements for the original equipment as well as hi-compression and a variety of oversizes to meet your ride’s needs. They are available in 0.25mm increments, from the -1 (0.25mm) through the -8 (2mm) oversize. We also carry B (0.01mm) and C (0.02mm) oversizes which help extend the life of your expensive coated cylinders; a selection of big bore piston kits is available for some applications. Combine this with the MOS2 coating and hard anodizing, Namura gives you a higher performance piston without the higher price. Namura piston kits come with the piston individually wrapped; a set of OEM quality rings packed in their own box, a wrist pin, and circlips. MOS2 (Teflon/Molybdenum) Coated SkirtsA 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 HeadsReflects 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 DomesIncreases heat resistance and durability; pistons with anodized domes are 75% stronger than non-anodized pistons. Hypereutectic Casting ProcessProvides higher silicon content for reduced expansion rates and additional wear resistance; it also has an ability to withstand higher cylinder temperatures.

  • See fitment guide image for additional Machines this item fits. A top-end rebuild can help to improve the performance of your ride, keeping it running in peak condition. Namura's Top-End Kits include everything you need to get your ride operational again; pistons, a top-end gasket kit and wrist-pin bearings (where applicable) are all included in this convenient, time saving kit.
  • Why replace your cylinder when you can replace the piston for a fraction of the cost and time? Namura offers direct replacements for the original equipment as well as hi-compression and a variety of oversizes to meet your ride?s needs. They are available in 0.25mm increments, from the -1 (0.25mm) through the -8 (2mm) oversize. We also carry B (0.01mm) and C (0.02mm) oversizes which help extend the life of your expensive coated cylinders; a selection of big bore piston kits is available for some
  • Namura piston kits come with the piston individually wrapped; a set of OEM quality rings packed in their own box, a wrist pin, and circlips.
  • 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%.
ASIN B07KTDX3PN
Item Weight 3.73 pounds
Manufacturer NAMURA
Product Dimensions 11.25 x 8.5 x 5 inches
Is Discontinued By Manufacturer No

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