{"product_id":"prox-01-6019-b-50cc-piston-kit-39-47-mm-gas-gas-husqvarna-ktm-2021-2025","title":"PROX 01.6019.B 50cc Piston Kit – 39.47 mm – Gas Gas | Husqvarna | KTM 2021–2025","description":"\u003cp data-start=\"328\" data-end=\"767\"\u003eRevitalize your 50cc race bike with the \u003cstrong data-start=\"368\" data-end=\"451\"\u003ePROX 01.6019.B 50cc Piston Kit – 39.47 mm – Gas Gas | Husqvarna | KTM 2021–2025\u003c\/strong\u003e. Crafted in Japan, this \u003cstrong data-start=\"476\" data-end=\"512\"\u003ehigh-performance 50cc piston kit\u003c\/strong\u003e delivers OEM precision, durability, and reliability for Gas Gas, Husqvarna, and KTM mini motocross models. Designed from a \u003cstrong data-start=\"636\" data-end=\"667\"\u003ehigh-silicon aluminum alloy\u003c\/strong\u003e, it provides superior heat resistance and reduced friction for consistent race-ready performance.\u003c\/p\u003e\n\u003cp data-start=\"769\" data-end=\"1219\"\u003eThe \u003cstrong data-start=\"773\" data-end=\"807\"\u003ePROX 01.6019.B 50cc piston kit\u003c\/strong\u003e includes everything needed for a rebuild—piston, ring kit, wrist pin, and circlips—ensuring a perfect fit and smooth engine operation. CNC-machined to tight tolerances, this kit guarantees optimal compression and longevity. Whether you’re rebuilding for the track or maintaining a young rider’s first race bike, this \u003cstrong data-start=\"1125\" data-end=\"1144\"\u003ePROX piston kit\u003c\/strong\u003e is the dependable choice trusted by professionals and enthusiasts alike.\u003c\/p\u003e\n\u003chr data-start=\"1221\" data-end=\"1224\"\u003e\n\u003ch3 data-start=\"1226\" data-end=\"1246\"\u003e\u003cstrong data-start=\"1230\" data-end=\"1246\"\u003eFitment List\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003cdiv class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"1247\" data-end=\"1389\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"1247\" data-end=\"1270\"\u003e\n\u003ctr data-start=\"1247\" data-end=\"1270\"\u003e\n\u003cth data-start=\"1247\" data-end=\"1254\" data-col-size=\"sm\"\u003eYear\u003c\/th\u003e\n\u003cth data-start=\"1254\" data-end=\"1261\" data-col-size=\"sm\"\u003eMake\u003c\/th\u003e\n\u003cth data-start=\"1261\" data-end=\"1270\" data-col-size=\"sm\"\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"1296\" data-end=\"1389\"\u003e\n\u003ctr data-start=\"1296\" data-end=\"1327\"\u003e\n\u003ctd data-start=\"1296\" data-end=\"1308\" data-col-size=\"sm\"\u003e2021–2025\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1308\" data-end=\"1318\"\u003eGas Gas\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1318\" data-end=\"1327\"\u003eMC 50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1328\" data-end=\"1361\"\u003e\n\u003ctd data-start=\"1328\" data-end=\"1340\" data-col-size=\"sm\"\u003e2017–2025\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1340\" data-end=\"1352\"\u003eHusqvarna\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1352\" data-end=\"1361\"\u003eTC 50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1362\" data-end=\"1389\"\u003e\n\u003ctd data-start=\"1362\" data-end=\"1374\" data-col-size=\"sm\"\u003e2009–2025\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1374\" data-end=\"1380\"\u003eKTM\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1380\" data-end=\"1389\"\u003e50 SX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-start=\"1391\" data-end=\"1394\"\u003e\n\u003ch3 data-start=\"1396\" data-end=\"1416\"\u003e\u003cstrong data-start=\"1400\" data-end=\"1416\"\u003eTop Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1419\" data-end=\"1500\"\u003e\n\u003cstrong data-start=\"1419\" data-end=\"1453\"\u003ePrecision Japanese Engineering\u003c\/strong\u003e – Built in Japan to exact OEM specifications\u003c\/li\u003e\n\u003cli data-start=\"1503\" data-end=\"1600\"\u003e\n\u003cstrong data-start=\"1503\" data-end=\"1533\"\u003eDurable Alloy Construction\u003c\/strong\u003e – High-silicon aluminum alloy enhances strength and heat control\u003c\/li\u003e\n\u003cli data-start=\"1603\" data-end=\"1687\"\u003e\n\u003cstrong data-start=\"1603\" data-end=\"1632\"\u003eComplete 50cc Rebuild Kit\u003c\/strong\u003e – Includes piston, ring kit, wrist pin, and circlips\u003c\/li\u003e\n\u003cli data-start=\"1690\" data-end=\"1779\"\u003e\n\u003cstrong data-start=\"1690\" data-end=\"1715\"\u003eCNC-Machined Accuracy\u003c\/strong\u003e – Perfect 39.47 mm fit ensures smooth and efficient operation\u003c\/li\u003e\n\u003cli data-start=\"1782\" data-end=\"1869\"\u003e\n\u003cstrong data-start=\"1782\" data-end=\"1805\"\u003eTrusted Performance\u003c\/strong\u003e – Ideal for both professional racing and everyday maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1871\" data-end=\"1874\"\u003e\n\u003ch3 data-start=\"1876\" data-end=\"1888\"\u003e\u003cstrong data-start=\"1880\" data-end=\"1888\"\u003eFAQs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1890\" data-end=\"2065\"\u003e\u003cstrong data-start=\"1890\" data-end=\"1971\"\u003eQ: Does this PROX 50cc piston kit include everything needed for installation?\u003c\/strong\u003e\u003cbr data-start=\"1971\" data-end=\"1974\"\u003eA: Yes. It comes with a piston, ring kit, wrist pin, and circlips for a complete rebuild.\u003c\/p\u003e\n\u003cp data-start=\"2067\" data-end=\"2240\"\u003e\u003cstrong data-start=\"2067\" data-end=\"2125\"\u003eQ: Will the PROX 01.6019.B fit my stock 50cc cylinder?\u003c\/strong\u003e\u003cbr data-start=\"2125\" data-end=\"2128\"\u003eA: Yes. It’s designed to OEM dimensions and fits Gas Gas, Husqvarna, and KTM 50cc models without modification.\u003c\/p\u003e\n\u003cp data-start=\"2242\" data-end=\"2421\"\u003e\u003cstrong data-start=\"2242\" data-end=\"2287\"\u003eQ: What makes PROX piston kits stand out?\u003c\/strong\u003e\u003cbr data-start=\"2287\" data-end=\"2290\"\u003eA: PROX uses advanced Japanese engineering, precision machining, and premium materials for unmatched reliability and performance.\u003c\/p\u003e\n\u003chr data-start=\"2423\" data-end=\"2426\"\u003e\n\u003cp data-start=\"2428\" data-end=\"2600\"\u003e\u003cstrong data-start=\"2428\" data-end=\"2598\"\u003eGet your bike race-ready with the PROX 01.6019.B 50cc Piston Kit – engineered for peak performance and long-lasting power. Order yours today and ride with confidence!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2602\" data-end=\"2723\"\u003e\u003cem data-start=\"2602\" data-end=\"2723\"\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – is located in Clermont\/Montverde, FL, the best motocross shop in Central Florida.   \u003c\/em\u003e\u003c\/p\u003e","brand":"PROX","offers":[{"title":"Default Title","offer_id":43138195947603,"sku":"0910-3270","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/prox-piston-kit-3947-mm-for-gas-gas-husqvarna-ktm-part-016019b-2969100.png?v=1760807545","url":"https:\/\/motohousemx.com\/products\/prox-01-6019-b-50cc-piston-kit-39-47-mm-gas-gas-husqvarna-ktm-2021-2025","provider":"Moto-House MX","version":"1.0","type":"link"}