{"product_id":"vertex-wr101-036-complete-engine-rebuild-kit-kawasaki-kx125-2003-2004","title":"Vertex WR101-036 Complete Engine Rebuild Kit – Kawasaki KX125 (2003–2004)","description":"\u003ch2 style=\"text-align: center;\"\u003eVertex WR101-036 Complete Engine Rebuild Kit – Kawasaki KX125 (2003–2004) – Full Power Restoration Kit\u003c\/h2\u003e\n\u003cp data-end=\"983\" data-start=\"313\"\u003eThe \u003cstrong data-end=\"365\" data-start=\"317\"\u003eVertex WR101-036 Complete Engine Rebuild Kit\u003c\/strong\u003e for \u003cstrong data-end=\"400\" data-start=\"370\"\u003eKawasaki KX125 (2003–2004)\u003c\/strong\u003e is the ultimate solution for riders who want to restore their bike’s performance and reliability. This \u003cstrong data-end=\"541\" data-start=\"504\"\u003econvenient one-stop shop in a box\u003c\/strong\u003e includes nearly every component needed for a complete and professional engine rebuild. Designed with precision and built to last, each kit combines \u003cstrong data-end=\"700\" data-start=\"690\"\u003eVertex\u003c\/strong\u003e and \u003cstrong data-end=\"717\" data-start=\"705\"\u003eHot Rods\u003c\/strong\u003e components to deliver OEM-level fitment and race-proven durability. Whether you’re rebuilding after a hard season or bringing a two-stroke legend back to life, this comprehensive kit ensures smooth operation, strong compression, and dependable results every time.\u003c\/p\u003e\n\u003cp data-end=\"1595\" data-start=\"985\"\u003eFeaturing a \u003cstrong data-end=\"1018\" data-start=\"997\"\u003eVertex piston kit\u003c\/strong\u003e, \u003cstrong data-end=\"1054\" data-start=\"1020\"\u003eHot Rods heavy-duty crankshaft\u003c\/strong\u003e, and complete \u003cstrong data-end=\"1103\" data-start=\"1069\"\u003ebearing, seal, and gasket kits\u003c\/strong\u003e, the WR101-036 provides everything required for a top-to-bottom engine overhaul. It also includes a \u003cstrong data-end=\"1239\" data-start=\"1204\"\u003ewater pump bearing and seal kit\u003c\/strong\u003e for efficient cooling and leak-free performance. Built to handle the rigors of motocross and off-road riding, this all-in-one rebuild kit delivers premium quality, precise fitment, and long-term reliability. With \u003cstrong data-end=\"1487\" data-start=\"1453\"\u003eVertex performance engineering\u003c\/strong\u003e, you can rebuild your KX125 with confidence and experience that crisp, powerful two-stroke feel you love.\u003c\/p\u003e\n\u003cp data-end=\"2006\" data-start=\"1880\"\u003e🔥 \u003cstrong data-end=\"2006\" data-start=\"1883\"\u003eRebuild it right—ignite your KX125’s full potential and feel that factory-fresh snap every time you twist the throttle!\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-end=\"2011\" data-start=\"2008\"\u003e\n\u003ch3 data-end=\"306\" data-start=\"284\"\u003e✅ \u003cstrong data-end=\"306\" data-start=\"290\"\u003eTop Features\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"441\" data-start=\"309\"\u003e\n\u003cstrong data-end=\"346\" data-start=\"309\"\u003eConvenient all-in-one rebuild kit\u003c\/strong\u003e – includes nearly every component needed for a \u003cstrong data-end=\"439\" data-start=\"394\"\u003ecomplete and professional engine overhaul\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"566\" data-start=\"444\"\u003e\n\u003cstrong data-end=\"465\" data-start=\"444\"\u003eVertex piston kit\u003c\/strong\u003e – standard compression piston, rings, pin, and clips deliver reliable sealing and consistent power\u003c\/li\u003e\n\u003cli data-end=\"708\" data-start=\"569\"\u003e\n\u003cstrong data-end=\"603\" data-start=\"569\"\u003eHot Rods heavy-duty crankshaft\u003c\/strong\u003e – stock stroke with wrist pin bearing provides strength, smooth operation, and long-lasting durability\u003c\/li\u003e\n\u003cli data-end=\"829\" data-start=\"711\"\u003e\n\u003cstrong data-end=\"749\" data-start=\"711\"\u003eHot Rods main bearing and seal kit\u003c\/strong\u003e – ensures proper lubrication, reduced friction, and improved engine longevity\u003c\/li\u003e\n\u003cli data-end=\"975\" data-start=\"832\"\u003e\n\u003cstrong data-end=\"869\" data-start=\"832\"\u003eHot Rods transmission bearing kit\u003c\/strong\u003e – includes all transmission bearings, output shaft collar, and sprocket lock washer for smooth shifting\u003c\/li\u003e\n\u003cli data-end=\"1081\" data-start=\"978\"\u003e\n\u003cstrong data-end=\"1019\" data-start=\"978\"\u003eHot Rods counter balancer bearing kit\u003c\/strong\u003e – reduces vibration for balanced, stable engine performance\u003c\/li\u003e\n\u003cli data-end=\"1188\" data-start=\"1084\"\u003e\n\u003cstrong data-end=\"1128\" data-start=\"1084\"\u003eHot Rods water pump bearing and seal kit\u003c\/strong\u003e – maintains optimal cooling efficiency and prevents leaks\u003c\/li\u003e\n\u003cli data-end=\"1309\" data-start=\"1191\"\u003e\n\u003cstrong data-end=\"1232\" data-start=\"1191\"\u003eVertex complete gasket and O-ring kit\u003c\/strong\u003e – covers both top and bottom ends for a perfect, leak-free seal every time\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2930\" data-start=\"2927\"\u003e\n\u003ch3 data-end=\"2951\" data-start=\"2932\"\u003e\u003cstrong data-end=\"2951\" data-start=\"2940\"\u003eFitment\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"2981\" data-start=\"2954\"\u003e\u003cstrong data-end=\"2979\" data-start=\"2954\"\u003eKawasaki KX125 (2003)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-end=\"3011\" data-start=\"2984\"\u003e\u003cstrong data-end=\"3009\" data-start=\"2984\"\u003eKawasaki KX125 (2004)\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"3016\" data-start=\"3013\"\u003e\n\u003ch3 data-end=\"3054\" data-start=\"3018\"\u003e❓ \u003cstrong data-end=\"3054\" data-start=\"3024\"\u003eFrequently Asked Questions\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp data-end=\"3278\" data-start=\"3056\"\u003e\u003cstrong data-end=\"3131\" data-start=\"3056\"\u003eQ: Does this rebuild kit include everything I need for my KX125 engine?\u003c\/strong\u003e\u003cbr data-end=\"3134\" data-start=\"3131\"\u003eA: Yes! It contains nearly all major internal components—piston, crankshaft, bearings, gaskets, and seals—for a complete professional rebuild.\u003c\/p\u003e\n\u003cp data-end=\"3503\" data-start=\"3280\"\u003e\u003cstrong data-end=\"3340\" data-start=\"3280\"\u003eQ: Is this kit suitable for modified or bored cylinders?\u003c\/strong\u003e\u003cbr data-end=\"3343\" data-start=\"3340\"\u003eA: Absolutely. The Vertex WR101-036 kit is compatible with over-size pistons and cylinder re-plating, making it perfect for both stock and performance builds.\u003c\/p\u003e\n\u003cp data-end=\"3742\" data-start=\"3505\"\u003e\u003cstrong data-end=\"3554\" data-start=\"3505\"\u003eQ: Why choose Vertex over other rebuild kits?\u003c\/strong\u003e\u003cbr data-end=\"3557\" data-start=\"3554\"\u003eA: Vertex kits combine top-tier components from Vertex, Hot Rods, and Hot Cams, delivering race-proven reliability and precision fitment trusted by top mechanics and riders worldwide.\u003c\/p\u003e\n\u003chr data-end=\"3747\" data-start=\"3744\"\u003e\n\u003cp data-end=\"3932\" data-start=\"3749\"\u003e\u003cstrong data-end=\"3802\" data-start=\"3749\"\u003e🚀  Revive your ride. Feel the power. Own the podium.\u003c\/strong\u003e\u003cbr data-end=\"3805\" data-start=\"3802\"\u003eBuilt with \u003cstrong data-end=\"3861\" data-start=\"3816\"\u003eVertex precision and Hot Rods performance\u003c\/strong\u003e, your \u003cstrong data-end=\"3877\" data-start=\"3868\"\u003eKX125\u003c\/strong\u003e will roar back to life, ready to dominate every lap.\u003c\/p\u003e\n\u003cp data-end=\"4062\" data-start=\"3934\"\u003e\u003cstrong data-end=\"3975\" data-start=\"3934\"\u003eMoto-House MX – Choice of Champions –\u003c\/strong\u003e located in Clermont\/Montverde, FL, the best motocross shop in Central Florida.\u003c\/p\u003e\n\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e","brand":"VERTEX","offers":[{"title":"Default Title","offer_id":43090887639123,"sku":"WR101-036","price":649.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/vertex-wr101-036-complete-engine-rebuild-kit-kawasaki-kx125-20032004-8212541.jpg?v=1761396682","url":"https:\/\/motohousemx.com\/products\/vertex-wr101-036-complete-engine-rebuild-kit-kawasaki-kx125-2003-2004","provider":"Moto-House MX","version":"1.0","type":"link"}