Wiseco Pistons PK1034 10:1 Compression Piston Kit 87mm Honda XR400 TRX400EX TRX400X

The Wiseco PK1034 is a complete high-performance piston kit featuring an 87.00mm bore and 10.0:1 compression ratio, designed for Honda XR400, TRX400EX, and TRX400X applications. This kit includes a premium forged piston, rings, wrist pin, circlips, and a complete top-end gasket set for a comprehensive rebuild.

Key Features:

• 87.00mm bore diameter with 10.0:1 compression ratio for improved power and throttle response
• Forged from high-strength aluminum alloy with condensed grain structure for superior durability
• Proprietary skirt coating reduces friction and wear for extended service life
• ArmorGlide skirt coating and ArmorPlating on the crown for maximum protection
• Complete kit includes piston, rings, wrist pin, circlips, and top-end gasket set
• Precision-machined ring grooves ensure optimal ring seal and performance
• Designed and manufactured in the USA with 100% in-house forging

Wiseco forgings feature aligned grain structure that follows the contours of the piston, providing exceptional impact and fatigue resistance compared to brittle cast pistons. The optimized strength-to-weight ratio delivers maximum performance while maintaining reliability under extreme racing conditions. Each piston is engineered through extensive dyno testing and R&D to meet the demands of high-performance powersports applications.