Description
If you’re building a high-performance long-stroke engine for your ATV, a properly assembled crankshaft is the foundation of reliability and power delivery. The HOT RODS Crankshaft Assembly 4138 arrives factory-assembled and trued to OEM specifications, eliminating the guesswork and machine work typically required for these builds. This complete unit pairs proven connecting rods, top-end bearings, and precision crankshaft webs—giving you a drop-in solution ready for installation without costly fabrication or compatibility issues.
- Factory-assembled, trued straight
- Meets/surpasses OEM specs
- Complete with connecting rods
- Top-end bearings included
- Completely rebuildable design
- Six long-stroke ATV applications
- TRX400EX compatible
- KFX/LTZ 400 compatible
- Banshee compatible
- Warrior compatible
- Raptor compatible
- Special piston options available
- Minimal machine work needed
- Main bearings sold separately
- Seals sold separately
- Single-cylinder application
- Bolt-on ready installation









