{"product_id":"hot-rods-4173-stroker-crankshaft-for-yamaha-yfz450","title":"Hot Rods 4173 Stroker Crankshaft for Yamaha YFZ450","description":"\u003cp\u003eThe Hot Rods 4173 Stroker Crankshaft is a performance-focused replacement for select Yamaha YFZ450 models. Designed as a premier alternative to a costly OEM crankshaft, this complete assembly is ready for installation and includes proven Hot Rods connecting rods, top-end bearings, and crankshaft webs. It is factory assembled and trued to OEM specifications for dependable fit, performance, and durability.\u003c\/p\u003e\u003cp\u003eEngineered for increased stroke, the Hot Rods 4173 crankshaft can increase engine displacement and horsepower while providing a convenient drop-in replacement in most applications. CNC machining and dynamic balancing support smooth operation with the added stroke, and the crankshaft is designed to use the stock piston in most applications. It can also be matched with a Cylinder Works Big Bore cylinder for additional displacement and power gains.\u003c\/p\u003e\u003cp\u003eFeature: Complete stroker crankshaft assembly ready for installation\u003cbr\u003eFeature: Increased stroke for greater displacement and horsepower potential\u003cbr\u003eFeature: Factory assembled and trued to OEM specifications\u003cbr\u003eFeature: CNC machined and dynamically balanced for the increased stroke\u003cbr\u003eFeature: Uses the stock piston in most applications\u003cbr\u003eFeature: Fully rebuildable with genuine Hot Rods connecting rods and bearings\u003cbr\u003eFeature: Gears manufactured to DIN Class 9 or higher quality standards\u003c\/p\u003e\u003cp\u003eThe Hot Rods manufacturer part number and vendor part number are both 4173. This crankshaft fits 2004–2009, 2012–2013 Yamaha YFZ450 models, including 2007–2008 Yamaha YFZ450 SE editions. Verify the model year and engine configuration before ordering.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete Hot Rods stroker crankshaft assembly with connecting rods, top-end bearings, and crankshaft webs\u003c\/li\u003e\n\u003cli\u003eIncreased stroke supports greater engine displacement and horsepower\u003c\/li\u003e\n\u003cli\u003eDrop-in replacement design requiring no modification in most applications\u003c\/li\u003e\n\u003cli\u003eCNC machined and dynamically balanced for reliable performance\u003c\/li\u003e\n\u003cli\u003eUses the stock piston in most applications\u003c\/li\u003e\n\u003cli\u003eFully rebuildable with genuine Hot Rods connecting rods and bearings\u003c\/li\u003e\n\u003cli\u003eGears manufactured to DIN Class 9 or higher quality standards\u003c\/li\u003e\n\u003cli\u003eFits select 2004–2009 and 2012–2013 Yamaha YFZ450 models, including 2007–2008 YFZ450 SE\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2004 Yamaha YFZ450\u003cbr\u003e\n2005 Yamaha YFZ450\u003cbr\u003e\n2006 Yamaha YFZ450\u003cbr\u003e\n2006 Yamaha YFZ450 Bill Balance Edition\u003cbr\u003e\n2007 Yamaha YFZ450\u003cbr\u003e\n2007 Yamaha YFZ450 Bill Balance Edition\u003cbr\u003e\n2007 Yamaha YFZ450 SE\u003cbr\u003e\n2008 Yamaha YFZ450\u003cbr\u003e\n2008 Yamaha YFZ450 SE\u003cbr\u003e\n2009 Yamaha YFZ450\u003cbr\u003e\n2012 Yamaha YFZ450\u003cbr\u003e\n2013 Yamaha YFZ450","brand":"HOT RODS","offers":[{"title":"Default Title","offer_id":67558383747307,"sku":"421-4173","price":554.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/ca76-572a68955fcdf_9cbc7ade-9689-459d-9bd8-36a8066c5ae5.jpg?v=1790760757","url":"https:\/\/ctracingservices.com\/products\/hot-rods-4173-stroker-crankshaft-for-yamaha-yfz450","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}