Horner Powersports

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Premium Quality

Wide Parts Range

Namura Top End Kit NA-50026K Polaris Sportsman 400 450 Ranger 400

Namura Top End Kit NA-50026K Polaris Sportsman 400 450 Ranger 400

Namura Top End Kit NA-50026K Polaris Sportsman 400 450 Ranger 400

Namura Top End Kit NA-50026K Polaris Sportsman 400 450 Ranger 400



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

2008 Polaris Sportsman 400 HO 2X4 | 2009 Polaris Sportsman 400 HO 2X4 | 2010 Polaris Sportsman 400 HO 2X4 | 2011 Polaris Sportsman 400 HO 2X4 | 2012 Polaris Sportsman 400 HO 2X4 | 2006 Polaris Sportsman 450 | 2007 Polaris Sportsman 450 | 2010 Polaris Ranger 400 4X4 [Midsize] | 2011 Polaris Ranger 400 4X4 [Midsize] | 2012 Polaris Ranger 400 4X4 [Midsize] | 2013 Polaris Ranger 400 4X4 [Midsize] | 2014 Polaris Ranger 400 4X4 [Midsize] | 2014 Polaris Hawkeye 400 HO 2X4 | 2013 Polaris Hawkeye 400 HO 2X4 | 2012 Polaris Hawkeye 400 HO 2X4 | 2001 Polaris Sportsman 400 4X4 | 2002 Polaris Sportsman 400 4X4 | 2003 Polaris Sportsman 400 4X4 | 2004 Polaris Sportsman 400 4X4 | 2005 Polaris Sportsman 400 4X4

 

We ship daily Monday through Friday. All new parts ship from the closest warehouse to your address and they typically arrive between 1-3 business days.

We ship internationally through ebays global shipping program. Delivery time varies.

***California Residents*** Some items we are unable to ship to California. (ex. Exhaust, High performance parts, Fuel controllers) If you place an order for a item that can not be sent to you we will cancel your order and refund you. Please contact us prior to purchasing if you have any questions.

All items returned must have a return mechandise authorization number (rma). Items returned without a rma will not qualify for a refund. All items must be returned in the original undamaged packaging within 30 days.

We accept PayPal, and all major credit cards and debit cards. Please message us for details if needed.

Why Customer Love Us ?

The product I ordered is perfect exactly what I expected. The gasket showed up with great packaging to protect the gasket. The price was great. I will buy from these people again.
Buyer: o***0 (545)
Excellent selection of quality VINTAGE parts. Great communication and shipping time 10/10 recommend this seller. A+++
Buyer: p***a (82)
Great guy. Accurate description fair pricing and amazing customer service. My part was shipped safe and sound with no damages in perfect condition.
Buyer: j***i (14)
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