Description
When your Honda TRX400EX’s engine shows signs of wear—loss of compression, increased blow-by, or declining power delivery—a complete rebuild restores it to factory specifications and reliability. The Wiseco Engine Rebuild Kit PWR131B-860 supplies every critical component you need in one package, eliminating the guesswork of sourcing individual parts and ensuring compatibility across top and bottom-end assemblies. Whether you’re prepping for race season or restoring a well-used machine, this kit gets you back to peak performance without the downtime of sourcing components piecemeal.
- Complete top-end components
- Complete bottom-end components
- Precision-engineered crankshaft
- High-quality rod assembly
- Main bearings included
- OEM-equivalent seals
- Factory gasket set
- Hour meter and bracket
- All components inspected
- Bolt-on installation
- Fits 2005–2008 TRX400EX
- Wiseco manufacturer quality
- MPN: PWR131B860
