{"product_id":"namura-na-10046k-top-end-kit-for-honda-trx450r-and-trx450er-95-96-mm-standard-bore-11-1-compression","title":"Namura NA-10046K Top End Kit for Honda TRX450R and TRX450ER, 95.96 mm Standard Bore, 11:1 Compression","description":"\u003cp\u003eThe Namura NA-10046K Top End Kit is designed for select Honda TRX450R and TRX450ER sport ATVs with electric start. This standard-bore kit includes a piston, piston rings, wrist pin, retaining clips, top-end bearing, and gasket kit for a comprehensive upper-engine rebuild. It fits 2006–2009 and 2012–2014 Honda TRX450ER Electric Start models, along with 2006–2008 Honda TRX450R models. Verify the model year and engine configuration before installation.\u003c\/p\u003e\u003cp\u003eThe piston uses a hypereutectic casting process that increases silicon content to help control expansion, improve wear resistance, and withstand elevated cylinder temperatures. Its MOS2, or Teflon and molybdenum, coated skirts use a rolled-on application for a durable bond that helps reduce friction, improve heat transfer, and minimize the risk of cold seizures. The machined smooth head is designed to reflect combustion heat and reduce carbon buildup, helping protect the piston crown and support consistent engine performance.\u003c\/p\u003e\u003cp\u003eAn anodized dome improves heat resistance and durability compared with a non-anodized design. With a 95.96 mm standard-bore piston and an 11:1 compression ratio, the Namura NA-10046K kit is suited for restoring dependable top-end function on compatible Honda ATV engines. The included gasket kit and supporting components simplify the rebuild process while helping ensure proper fit and sealing. Manufacturer part number NA-10046K and vendor part number 186-1046 identify this Namura replacement top-end kit.\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, retaining clips, top-end bearing, and gasket kit\u003c\/li\u003e\n\u003cli\u003e95.96 mm standard-bore piston with an 11:1 compression ratio for compatible Honda TRX450R and TRX450ER engines\u003c\/li\u003e\n\u003cli\u003eMOS2 Teflon and molybdenum coated piston skirts help 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 controlled expansion, increased wear resistance, and improved high-temperature performance\u003c\/li\u003e\n\u003cli\u003eFits 2006–2009 and 2012–2014 Honda TRX450ER Electric Start models and 2006–2008 Honda TRX450R models\u003c\/li\u003e\n\u003cli\u003eBrand: Namura; manufacturer part number: NA-10046K; vendor part number: 186-1046\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2006 Honda TRX450ER Electric Start\u003cbr\u003e\n2006 Honda TRX450R\u003cbr\u003e\n2007 Honda TRX450ER Electric Start\u003cbr\u003e\n2007 Honda TRX450R\u003cbr\u003e\n2008 Honda TRX450ER Electric Start\u003cbr\u003e\n2008 Honda TRX450R\u003cbr\u003e\n2009 Honda TRX450ER Electric Start\u003cbr\u003e\n2009 Honda TRX450R\u003cbr\u003e\n2012 Honda TRX450ER Electric Start\u003cbr\u003e\n2012 Honda TRX450R\u003cbr\u003e\n2013 Honda TRX450ER Electric Start\u003cbr\u003e\n2013 Honda TRX450R\u003cbr\u003e\n2014 Honda TRX450ER Electric Start\u003cbr\u003e\n2014 Honda TRX450R","brand":"NAMURA","offers":[{"title":"Default Title","offer_id":67559262257387,"sku":"186-1046","price":194.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/a3b4-5e99ac90e7689.jpg?v=1790771281","url":"https:\/\/ctracingservices.com\/products\/namura-na-10046k-top-end-kit-for-honda-trx450r-and-trx450er-95-96-mm-standard-bore-11-1-compression","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}