The Hot Rods 4059 Stroker Crankshaft is a performance-focused replacement for select 400cc ATV and motorcycle applications. Designed as a premier alternative to a costly OEM crankshaft, this Hot Rods crankshaft is supplied complete and ready for installation with proven Hot Rods connecting rods, top-end bearings, and crankshaft webs. It is factory assembled and trued to OEM specifications to provide dependable performance, durability, and consistent engine operation.
This stroker crankshaft increases engine stroke for greater displacement and horsepower while serving as a drop-in replacement in most applications without modification. The assembly is CNC machined and dynamically balanced to accommodate the increased stroke, and it uses the stock piston in most applications. For additional performance, it can be paired with Cylinder Works Big Bore cylinders to achieve significant displacement and horsepower gains. The gears are manufactured to a quality level of DIN Class 9 or higher, supporting precise and reliable operation.
The Hot Rods 4059 crankshaft is fully rebuildable using genuine Hot Rods connecting rods and bearings, helping simplify future service and extending the useful life of the engine assembly. It fits 2003–2006 Kawasaki KFX 400 models, 2004–2008 Arctic Cat 400 DVX models, and the 2005 Suzuki DR-Z400S. Verify year, model, and engine configuration before installation to ensure proper fitment.
Features:
- Complete stroker crankshaft assembly ready for installation
- Premier alternative to a costly OEM crankshaft
- Includes Hot Rods connecting rods, top-end bearings, and crankshaft webs
- Factory assembled and trued to OEM specifications
- Designed to meet or exceed OEM performance and durability
- Fully rebuildable with genuine Hot Rods connecting rods and bearings
- Gears manufactured to DIN Class 9 or higher quality standards
- Increased stroke for greater engine displacement and horsepower
- Drop-in replacement requiring no modification in most applications
- CNC machined and dynamically balanced for the increased stroke
- Uses the stock piston in most applications
- Compatible with Cylinder Works Big Bore cylinders for additional performance gains
- Fits 2003–2006 Kawasaki KFX 400
- Fits 2004–2008 Arctic Cat 400 DVX
- Fits 2005 Suzuki DR-Z400S
- Brand: Hot Rods
- Manufacturer Part Number: 4059
- Vendor Part Number: 421-4059
Fitment:
2000 Suzuki DR-Z400
2000 Suzuki DR-Z400E Non CA Model
2000 Suzuki DR-Z400S
2001 Suzuki DR-Z400
2001 Suzuki DR-Z400E Non CA Model
2001 Suzuki DR-Z400S
2002 Suzuki DR-Z400
2002 Suzuki DR-Z400E Non CA Model
2002 Suzuki DR-Z400S
2003 Kawasaki KFX 400
2003 Kawasaki KLX400R
2003 Suzuki DR-Z400
2003 Suzuki DR-Z400E Non CA Model
2003 Suzuki DR-Z400S
2003 Suzuki Lt-Z400 QuadSport Z
2004 Arctic Cat 400 DVX
2004 Kawasaki KFX 400
2004 Suzuki DR-Z400
2004 Suzuki DR-Z400E CA Model
2004 Suzuki DR-Z400E Non CA Model
2004 Suzuki DR-Z400S
2004 Suzuki Lt-Z400 QuadSport Z
2005 Arctic Cat 400 DVX
2005 Kawasaki KFX 400
2005 Suzuki DR-Z400E CA Model
2005 Suzuki DR-Z400E Non CA Model
2005 Suzuki DR-Z400S
2005 Suzuki DR-Z400SM
2005 Suzuki Lt-Z400 QuadSport Z
2006 Arctic Cat 400 DVX
2006 Kawasaki KFX 400
2006 Suzuki DR-Z400E CA Model
2006 Suzuki DR-Z400E Non CA Model
2006 Suzuki DR-Z400S
2006 Suzuki DR-Z400SM
2006 Suzuki Lt-Z400 QuadSport Z
2007 Arctic Cat 400 DVX
2007 Suzuki DR-Z400E CA Model
2007 Suzuki DR-Z400E Non CA Model
2007 Suzuki DR-Z400S
2007 Suzuki DR-Z400SM
2007 Suzuki Lt-Z400 QuadSport Z
2008 Arctic Cat 400 DVX
2008 Suzuki DR-Z400S
2008 Suzuki DR-Z400SM
2008 Suzuki Lt-Z400 QuadSport Z
2009 Suzuki DR-Z400S
2009 Suzuki DR-Z400SM
2009 Suzuki Lt-Z400 QuadSport Z
2010 Suzuki DR-Z400S
2010 Suzuki DR-Z400SM
2011 Suzuki DR-Z400S
2011 Suzuki DR-Z400SM
2012 Suzuki DR-Z400S
2012 Suzuki DR-Z400SM
2012 Suzuki Lt-Z400 QuadSport Z
2013 Suzuki DR-Z400S
2013 Suzuki DR-Z400SM
2013 Suzuki Lt-Z400 QuadSport Z
2014 Suzuki DR-Z400S
2014 Suzuki DR-Z400SM
2014 Suzuki Lt-Z400 QuadSport Z
2015 Suzuki DR-Z400S
2015 Suzuki DR-Z400SM
2016 Suzuki DR-Z400S
2016 Suzuki DR-Z400SM
2017 Suzuki DR-Z400S
2017 Suzuki DR-Z400SM
2018 Suzuki DR-Z400S
2018 Suzuki DR-Z400SM
2019 Suzuki DR-Z400S
2019 Suzuki DR-Z400SM
2020 Suzuki DR-Z400S
2020 Suzuki DR-Z400SM
2021 Suzuki DR-Z400S
2021 Suzuki DR-Z400SM
2022 Suzuki DR-Z400S
2022 Suzuki DR-Z400SM
2023 Suzuki DR-Z400S
2023 Suzuki DR-Z400SM
2024 Suzuki DR-Z400SM