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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
1991 Polaris Big Boss 250 6X6 | 1992 Polaris Big Boss 250 6X6 | 1991 Polaris Trail Boss 250 2X4 | 1992 Polaris Trail Boss 250 2X4 | 1993 Polaris Trail Boss 250 2X4 | 1989 Polaris Big Boss 250 4X6 | 1990 Polaris Big Boss 250 4X6 | 1991 Polaris Big Boss 250 4X6 | 1992 Polaris Big Boss 250 4X6 | 1992 Polaris Trail Blazer 250 | 1993 Polaris Trail Blazer 250 | 2003 Polaris Trail Blazer 250 | 2004 Polaris Trail Blazer 250 | 2005 Polaris Trail Blazer 250 | 2006 Polaris Trail Blazer 250 | 1990 Polaris Trail Blazer 250 | 1991 Polaris Trail Blazer 250 | 1994 Polaris Trail Blazer 250 | 1995 Polaris Trail Blazer 250 | 1996 Polaris Trail Blazer 250 | 1997 Polaris Trail Blazer 250 | 1998 Polaris Trail Blazer 250 | 1999 Polaris Trail Blazer 250 | 2000 Polaris Trail Blazer 250 | 2001 Polaris Trail Blazer 250 | 2002 Polaris Trail Blazer 250 | 2000 Polaris Xplorer 250 4X4 | 2001 Polaris Xplorer 250 4X4 | 2002 Polaris Xplorer 250 4X4 | 1994 Polaris Trail Boss 250 2X4 | 1995 Polaris Trail Boss 250 2X4 | 1996 Polaris Trail Boss 250 2X4 | 1997 Polaris Trail Boss 250 2X4 | 1998 Polaris Trail Boss 250 2X4 | 1999 Polaris Trail Boss 250 2X4
Item Specifics
| Brand | NAMURA |
| Manufacturer | NA-50000K |
| Manufacturer Part Number | NA-50000K |
| Manufacturer Part No. | NA-50000K |
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| Condition | New |
| Fitment | 1991 Polaris Big Boss 250 6X6 | 1992 Polaris Big Boss 250 6X6 | 1991 Polaris Trail Boss 250 2X4 | 1992 Polaris Trail Boss 250 2X4 | 1993 Polaris Trail Boss 250 2X4 | 1989 Polaris Big Boss 250 4X6 | 1990 Polaris Big Boss 250 4X6 | 1991 Polaris Big Boss 250 4X6 | 1992 Polaris Big Boss 250 4X6 | 1992 Polaris Trail Blazer 250 | 1993 Polaris Trail Blazer 250 | 2003 Polaris Trail Blazer 250 | 2004 Polaris Trail Blazer 250 | 2005 Polaris Trail Blazer 250 | 2006 Polaris Trail Blazer 250 | 1990 Polaris Trail Blazer 250 | 1991 Polaris Trail Blazer 250 | 1994 Polaris Trail Blazer 250 | 1995 Polaris Trail Blazer 250 | 1996 Polaris Trail Blazer 250 | 1997 Polaris Trail Blazer 250 | 1998 Polaris Trail Blazer 250 | 1999 Polaris Trail Blazer 250 | 2000 Polaris Trail Blazer 250 | 2001 Polaris Trail Blazer 250 | 2002 Polaris Trail Blazer 250 | 2000 Polaris Xplorer 250 4X4 | 2001 Polaris Xplorer 250 4X4 | 2002 Polaris Xplorer 250 4X4 | 1994 Polaris Trail Boss 250 2X4 | 1995 Polaris Trail Boss 250 2X4 | 1996 Polaris Trail Boss 250 2X4 | 1997 Polaris Trail Boss 250 2X4 | 1998 Polaris Trail Boss 250 2X4 | 1999 Polaris Trail Boss 250 2X4 |
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| Universal Fitment | |
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| Vintage Part | |
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| Weight | 1.7900 |
| Dimensional Weight | 0.00 |
| Box Length | 9.50 |
| Box Width | 4.40 |
| Box Height | 8.20 |
| Box Weight | 0.00 |
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| California Prop 65 Warning | |
| Legal Disclaimer | |
| Compatibility Disclaimer | |
| Photo Disclaimer | |
| Authorized Dealer | |
| Free Shipping | |
| eBay Global Shipping | |
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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.
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