HOT RODS Crankshaft 4081

If you're building a long-stroke engine for your ATV, the HOT RODS Crankshaft 4081 eliminates the guesswork and machine work typically required for displacement increases. This complete assembly arrives factory-assembled and trued to OEM specifications, meaning you can bolt it in with confidence and start focusing on tuning rather than fabrication. Whether you're running a TRX400EX, KFX/LTZ 400, Banshee, Warrior, or Raptor, Hot Rods has engineered purpose-built pistons to make the installation straightforward—no custom grinding or unexpected compatibility issues.

Technical Specifications

• Complete crankshaft assembly
• Factory-assembled, trued
• OEM specification compliance
• Includes connecting rods
• Includes top-end bearings
• Includes crankshaft webs
• Ready for installation
• Rebuildable design
• Main bearings sold separately
• Seals sold separately
• Six long-stroke applications
• Purpose-built pistons included
• Eliminates machine work
• Meets/surpasses OEM durability
• MPN: 4081