{"product_id":"namura-na-10002k-73-95-mm-standard-bore-11-1-top-end-kit-for-honda-trx300-fourtrax","title":"Namura NA-10002K 73.95 mm Standard Bore 11:1 Top End Kit for Honda TRX300 Fourtrax","description":"\u003cp\u003eRestore top-end performance on your Honda TRX300 Fourtrax with the Namura NA-10002K Top End Kit. Designed for the 73.95 mm standard-bore application with an 11:1 compression ratio, this kit includes the essential components needed for a complete top-end rebuild, including a piston, piston rings, wrist pin, circlips, top-end bearing, and gasket kit.\u003c\/p\u003e\u003cp\u003eThe piston features a MOS2, or Teflon and molybdenum, coated skirt applied through a rolled-on process for a bond reported to be 10 times stronger than many spray-on coatings. This coating helps promote heat transfer, reduce friction, and minimize the risk of cold seizures. The machined smooth head reflects combustion heat and helps reduce carbon buildup, supporting piston protection and efficient engine operation.\u003c\/p\u003e\u003cp\u003eAn anodized dome improves heat resistance and durability, while the hypereutectic casting process increases silicon content to reduce expansion and improve wear resistance. These features help the piston withstand elevated cylinder temperatures while maintaining dependable service in demanding riding conditions. The Namura manufacturer part number is NA-10002K, and the vendor part number is 186-1002.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e This Namura top-end kit fits 1988–1997 Honda TRX300 Fourtrax models. Verify the year, model, bore size, compression ratio, and engine specifications before ordering to ensure proper installation.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete top-end kit includes piston, rings, wrist pin, circlips, top-end bearing, and gasket kit\u003c\/li\u003e\n\u003cli\u003e73.95 mm standard-bore piston with an 11:1 compression ratio for compatible Honda TRX300 Fourtrax applications\u003c\/li\u003e\n\u003cli\u003eMOS2 Teflon and molybdenum coated skirt helps reduce friction, improve heat transfer, and minimize cold-seizure risk\u003c\/li\u003e\n\u003cli\u003eMachined smooth piston head helps reflect combustion heat and reduce carbon buildup\u003c\/li\u003e\n\u003cli\u003eAnodized piston dome improves heat resistance and durability\u003c\/li\u003e\n\u003cli\u003eHypereutectic casting process provides increased silicon content, reduced expansion, and enhanced wear resistance\u003c\/li\u003e\n\u003cli\u003eFits 1988–1997 Honda TRX300 Fourtrax models\u003c\/li\u003e\n\u003cli\u003eBrand: Namura; manufacturer part number: NA-10002K; vendor part number: 186-1002\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n1988 Honda TRX300 Fourtrax\u003cbr\u003e\n1988 Honda TRX300FW Fourtrax 4X4\u003cbr\u003e\n1989 Honda TRX300 Fourtrax\u003cbr\u003e\n1990 Honda TRX300 Fourtrax\u003cbr\u003e\n1990 Honda TRX300FW Fourtrax 4X4\u003cbr\u003e\n1991 Honda TRX300 Fourtrax\u003cbr\u003e\n1991 Honda TRX300FW Fourtrax 4X4\u003cbr\u003e\n1992 Honda TRX300 Fourtrax\u003cbr\u003e\n1992 Honda TRX300FW Fourtrax 4X4\u003cbr\u003e\n1993 Honda TRX300 Fourtrax\u003cbr\u003e\n1993 Honda TRX300FW Fourtrax 4X4\u003cbr\u003e\n1994 Honda TRX300 Fourtrax\u003cbr\u003e\n1994 Honda TRX300FW Fourtrax 4X4\u003cbr\u003e\n1995 Honda TRX300 Fourtrax\u003cbr\u003e\n1995 Honda TRX300FW Fourtrax 4X4\u003cbr\u003e\n1996 Honda TRX300 Fourtrax\u003cbr\u003e\n1996 Honda TRX300FW Fourtrax 4X4\u003cbr\u003e\n1997 Honda TRX300 Fourtrax\u003cbr\u003e\n1997 Honda TRX300FW Fourtrax 4X4\u003cbr\u003e\n1998 Honda TRX300 Fourtrax\u003cbr\u003e\n1998 Honda TRX300FW Fourtrax 4X4\u003cbr\u003e\n1999 Honda TRX300 Fourtrax\u003cbr\u003e\n1999 Honda TRX300FW Fourtrax 4X4\u003cbr\u003e\n2000 Honda TRX300 Fourtrax\u003cbr\u003e\n2000 Honda TRX300FW Fourtrax 4X4","brand":"NAMURA","offers":[{"title":"Default Title","offer_id":67559413383403,"sku":"186-1002","price":115.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/b8bc-5d76d54b7cc76_ec0f3814-6e77-4634-bac2-62fa5b720100.jpg?v=1790772207","url":"https:\/\/ctracingservices.com\/products\/namura-na-10002k-73-95-mm-standard-bore-11-1-top-end-kit-for-honda-trx300-fourtrax","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}