Wiseco Engine Rebuild Kit Honda TRX400EX 1999-2004 PWR131A-860

When your TRX400EX's engine shows signs of wear—loss of compression, increased blow-by, or metal fatigue—a full rebuild is the most cost-effective way to restore original performance and reliability. The Wiseco Engine Rebuild Kit PWR131A-860 delivers all necessary top and bottom-end components in one package, eliminating the guesswork of sourcing individual parts and ensuring compatibility across your 1999-2004 model. This is the rebuild solution trusted by ATV competitors and serious enthusiasts who demand engines that run strong for years.

Wiseco engineered every component in this kit to OEM specifications while maintaining their reputation for precision manufacturing. You get a fully machined crankshaft and rod assembly designed to handle sustained performance demands, paired with main bearings, seals, and gaskets that guarantee a proper fit without modification. The included hour meter and bracket let you track engine cycles and plan maintenance intervals with confidence.

• Fits: Honda TRX400EX 1999-2004
• MPN: PWR131A-860
• Complete top-end components
• Complete bottom-end components
• Crankshaft assembly included
• Connecting rod assembly
• Main bearings included
• Seals and gaskets
• Hour meter with bracket
• Bolt-on installation
• Manufacturer: Wiseco