The Hot Rods 4073 Stroker Crankshaft is a performance-focused replacement crankshaft designed for select Yamaha YFZ450 sport ATV models. This complete assembly provides a reliable alternative to a costly OEM crankshaft and is supplied ready for installation with proven Hot Rods connecting rods, top-end bearings, and crankshaft webs. Factory assembled and trued to OEM specifications, it is engineered to meet or exceed original-equipment standards for performance and durability.
As a stroker crankshaft, the Hot Rods 4073 increases engine stroke to help produce greater displacement and horsepower. Its drop-in design requires no modification in most applications and uses the stock piston in most installations. CNC machining and dynamic balancing support smooth, dependable operation with the increased stroke. The crankshaft can also be paired with Cylinder Works Big Bore cylinders for additional displacement and power gains.
Feature: Complete Hot Rods crankshaft assembly ready for installation
Feature: Stroker design increases displacement and horsepower potential
Feature: Factory assembled and trued to OEM specifications
Feature: CNC machined and dynamically balanced for the increased stroke
Feature: Uses the stock piston in most applications
Feature: Fully rebuildable with genuine Hot Rods connecting rods and bearings
Feature: Gear manufacturing meets DIN Class 9 or higher quality standards
Manufacturer: Hot Rods
Vendor Part Number: 4073
Fitment: 2004-2009 and 2012-2013 Yamaha YFZ450; 2007-2008 Yamaha YFZ450 SE. Verify model year and engine application before installation.
Features:
- Complete Hot Rods crankshaft assembly ready for installation
- Stroker design increases displacement and horsepower potential
- Factory assembled and trued to OEM specifications
- CNC machined and dynamically balanced for the increased stroke
- Uses the stock piston in most applications
- Fully rebuildable with genuine Hot Rods connecting rods and bearings
- Gear manufacturing meets DIN Class 9 or higher quality standards
- Fits select 2004-2009 and 2012-2013 Yamaha YFZ450 models, including 2007-2008 YFZ450 SE
Fitment:
2004 Yamaha YFZ450
2005 Yamaha YFZ450
2006 Yamaha YFZ450
2006 Yamaha YFZ450 Bill Balance Edition
2007 Yamaha YFZ450
2007 Yamaha YFZ450 Bill Balance Edition
2007 Yamaha YFZ450 SE
2008 Yamaha YFZ450
2008 Yamaha YFZ450 SE
2009 Yamaha YFZ450
2012 Yamaha YFZ450
2013 Yamaha YFZ450