{"product_id":"hot-rods-stroker-crankshaft-for-yamaha-yfz450-part-4173","title":"Hot Rods Stroker Crankshaft for Yamaha YFZ450 - Part 4173","description":"\u003cp\u003eUpgrade your Yamaha YFZ450 with the Hot Rods Stroker Crankshaft (Part 4173), designed to deliver increased performance and reliability. This crankshaft is a premier alternative to costly OEM parts, offering a complete assembly with the original proven Hot Rods connecting rods, top end bearings, and crankshaft webs. Factory assembled and precisely trued to OEM specifications, it ensures that your ATV maintains factory-level performance while exceeding durability standards. The fully rebuildable design allows for future maintenance with genuine Hot Rods connecting rods and bearings, making it a long-lasting investment for enthusiasts seeking enhanced power and longevity.\u003cbr\u003eConstructed with high-quality gears conforming to DIN Class 9 standards or higher, this crankshaft guarantees smooth operation and durability. The Hot Rods Stroker Crankshaft features increased stroke, resulting in increased displacement and horsepower, which translates into more power for your Yamaha YFZ450. It is a drop-in replacement that requires no modifications in most applications, simplifying installation. CNC machined and dynamically balanced to accommodate the increased stroke, this crankshaft can often utilize stock pistons, making it versatile for various build configurations. When paired with Cylinder Works Big Bore cylinders, this crankshaft can significantly boost your ATV’s displacement and horsepower, providing a substantial performance upgrade for racing or recreational riding.\u003cbr\u003eDesigned specifically for Yamaha YFZ450 models from 2004 to 2013, including SE variants, this product ensures a perfect fit and reliable operation. Whether you're restoring your ATV or seeking to improve its performance, the Hot Rods Stroker Crankshaft offers a high-quality, durable solution that enhances engine power while maintaining factory standards of quality and precision.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eCrankshafts designed for Yamaha YFZ450 models from 2004-2013\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePremier alternative to costly OEM crankshaft with complete assembly\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSold complete with original proven Hot Rods connecting rods, top end bearings, and crankshaft webs\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFactory assembled and trued to OEM specifications for reliable performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFully rebuildable with genuine Hot Rods components for long-term durability\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eGears manufactured at DIN Class 9 or higher for smooth operation\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eStroker crankshaft with increased stroke for higher displacement and horsepower\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDrop-in replacement requiring no modifications in most applications\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCNC machined and dynamically balanced for increased stroke and performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompatible with stock pistons in most applications\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIdeal for pairing with Cylinder Works Big Bore cylinders to maximize displacement and power\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFits,\u003cbr\u003e\nYamaha YFZ450 2004\u003cbr\u003e\nYamaha YFZ450 2005\u003cbr\u003e\nYamaha YFZ450 2006\u003cbr\u003e\nYamaha YFZ450 2007\u003cbr\u003e\nYamaha YFZ450 2008\u003cbr\u003e\nYamaha YFZ450 2009\u003cbr\u003e\nYamaha YFZ450 2012\u003cbr\u003e\nYamaha YFZ450 2013\u003cbr\u003e\nYamaha YFZ450 Bill Balance Edition 2006\u003cbr\u003e\nYamaha YFZ450 Bill Balance Edition 2007\u003cbr\u003e\nYamaha YFZ450 SE 2007\u003cbr\u003e\nYamaha YFZ450 SE 2008","brand":"HOT RODS","offers":[{"title":"Default Title","offer_id":45196371132611,"sku":"421-4173","price":645.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/6052\/2435\/files\/hot-rods-stroker-crankshaft-for-yamaha-yfz450-part-4173-6259427.jpg?v=1780373726","url":"https:\/\/kellymotorsport.com\/products\/hot-rods-stroker-crankshaft-for-yamaha-yfz450-part-4173","provider":"Kelly Motorsports","version":"1.0","type":"link"}