Skip to main content

Confirm this item fits

Add your vehicle details to make sure this item fits.

Picture 1 of 3

Namura Technologies NA-50003-2K Piston Kit 0.50mm Oversize to 74.97mm 186-50032 - Picture 1 of 3
Namura Technologies NA-50003-2K Piston Kit 0.50mm Oversize to 74.97mm 186-50032 - Picture 2 of 3
Namura Technologies NA-50003-2K Piston Kit 0.50mm Oversize to 74.97mm 186-50032 - Picture 3 of 3

Namura Technologies - NA-50003-2K - Top End Repair Kit, 0.50mm Oversize to 74.97mm

5.02 product ratings
OEM Cycle Shop (573665)
98.9% positive feedback
Price:
US $107.73
ApproximatelyAU $165.18
+ $6.31 postage
Estimated delivery Mon, 16 Jun - Mon, 23 Jun
Sent today if you order in the next Sent today if you order in the next 3h 51m
Returns:
30-day returns. Buyer pays for return postage. If you use an eBay postage label, it will be deducted from your refund amount.
Condition:
Brand New
Machined smooth piston crown to reflect combustion heat while reducing carbon buildup. Hard anodized piston crown with a hardness of HRB 105. MOS2 coating to draw heat through piston walls and out the bottom.

About this product

Product Identifiers

BrandNamura Technologies
Manufacturer Part NumberNA-50003-2K
eBay Product ID (ePID)209949599

Additional Product Features

Part TypeTop End Repair Kit

All listings for this product

Buy It Now
New
Namura Technologies NA-50003-2K Piston Kit 0.50mm Oversize to 74.97mm 186-50032
item 1 Namura Technologies NA-50003-2K Piston Kit 0.50mm Oversize to 74.97mm 186-50032
AU $165.19
+AU $9.68 postage
1996-1999 POLARIS 300 XPLORER Namura Top End Repair Kit Polaris .020 NA-50003-2K
Last one
item 2 1996-1999 POLARIS 300 XPLORER Namura Top End Repair Kit Polaris .020 NA-50003-2K
AU $147.83
+AU $31.37 postage
Namura .020 Over Bore Top End Repair Kit for Polaris 300 2-Stroke ATV's 75mm
item 3 Namura .020 Over Bore Top End Repair Kit for Polaris 300 2-Stroke ATV's 75mm
AU $160.14
+AU $31.74 postage
Namura Top End Repair Kit, 0.50mm Oversize to 74.97mm | NA-50003-2K
item 4 Namura Top End Repair Kit, 0.50mm Oversize to 74.97mm | NA-50003-2K
AU $175.54
+AU $32.18 postage
Namura Technologies NA-50003-2K Top End Repair Kit - 0.50mm Oversize to 74.97mm
item 5 Namura Technologies NA-50003-2K Top End Repair Kit - 0.50mm Oversize to 74.97mm
AU $177.92
+AU $32.26 postage
Namura +0.50mm Top End Kit NA-50003-2K for Big Boss Xplorer Xpress 300 94-00
item 6 Namura +0.50mm Top End Kit NA-50003-2K for Big Boss Xplorer Xpress 300 94-00
AU $178.76
+AU $32.28 postage
Namura-Top End Repair Kit-for Polaris-Xpress 300
item 7 Namura-Top End Repair Kit-for Polaris-Xpress 300
AU $184.11
+AU $32.43 postage
Namura Piston Kit 0.50mm Oversize to 74.97mm NA-50003-2K
item 8 Namura Piston Kit 0.50mm Oversize to 74.97mm NA-50003-2K
AU $187.74
+AU $31.46 postage
Namura Top End Repair Kit NA-50003-2K
item 9 Namura Top End Repair Kit NA-50003-2K
AU $160.46
+AU $75.34 postage
Namura Top End Repair Kit, 0.50Mm Oversize To 74.97Mm Na-50003-2K NA-50003-2K
item 10 Namura Top End Repair Kit, 0.50Mm Oversize To 74.97Mm Na-50003-2K NA-50003-2K
AU $195.33
+AU $58.54 postage
NAMURA TOP END REPAIR KIT NA-50003-2K
item 11 NAMURA TOP END REPAIR KIT NA-50003-2K
AU $206.59
+AU $53.87 postage
NAMURA 1996-1999 Xplorer 300 4X4 Polaris TOP END KIT TWO STROKE 74.97/+0.50 POL
item 12 NAMURA 1996-1999 Xplorer 300 4X4 Polaris TOP END KIT TWO STROKE 74.97/+0.50 POL
AU $206.59
+AU $64.06 postage
NAMURA 1996-1999 Xpress 300 Polaris TOP END KIT TWO STROKE 74.97/+0.50 POL NA-50
item 13 NAMURA 1996-1999 Xpress 300 Polaris TOP END KIT TWO STROKE 74.97/+0.50 POL NA-50
AU $206.59
+AU $71.55 postage
listings for this product

Ratings and reviews

Learn more
5.0
2 product ratings
  • 2 users rated this 5 out of 5 stars
  • 0 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Most relevant reviews

  • by maxr1980
    04 Jun, 2025

    Perfect fit and the instructions were ve...

    Perfect fit and the instructions were very clear and easy to understand for the break in process.

    Verified purchase: YesCondition: New

  • by vettemanz51
    07 Sep, 2019

    Good deal

    Worked perfect

    Verified purchase: YesCondition: New

Best Selling in Engine Rebuild Kits & Components

You may also like