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Please be advised that our operations are currently affected by the Southern California wildfires. Our internet and phone systems are experiencing intermittent disruptions. We are making every effort to ensure customer orders are processed and dispatched in a timely manner, as well as responding to all messages. We sincerely appreciate your patience and understanding during this time.
Please be advised that our operations are currently affected by the Southern California wildfires. Our internet and phone systems are experiencing intermittent disruptions. We are making every effort to ensure customer orders are processed and dispatched in a timely manner, as well as responding to all messages. We sincerely appreciate your patience and understanding during this time.

TRX400EX TRX 400EX Head Cylinder 87 mil Big Bore Kit Cover Top End Rebuild

by BPRATV
Save 10% Save 10%
Original price $999.99
Original price $999.99 - Original price $999.99
Original price $999.99
Current price $899.99
$899.99 - $899.99
Current price $899.99
FITS ALL HONDA TRX400EX, 400X, AND XR400R MODELS AND YEARS
  • New after-market cylinder head - NO VALVES OR SPRINGS HEAD ONLY
  • Aftermarket cylinder head valve cover
  • 87mm after-market big bore cylinder
  • Wiseco JE or CP forged piston**
  • Hi-temp piston rings
  • Wristpin
  • Circlips
  • Top-end gasket kit
  • Head stud kit
  • Timing/cam chain
  • Stickers
Head works with all OEM or after market components.  Piston uses pump or race gas.  Works with stock or after-market valve springs.  Everything is brand new.


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