Pay in 4 interest-free payments of $125.00 Learn more
Ships within 48 hours · Estimated delivery Aug 8 - Aug 13
Boost Performance: Improve your engine’s efficiency and longevity
NEW after market 102mm cylinder
Water Pump Bearings – Maintains optimal water pump function
Huge upgrade over OEM head bolts
High quality made in Germany
TRX 400EX 400X Port Ported Assembled Head Porting Assembly Valves Ranger 1000 Boost Performance: Improve your engine’sFITS ALL XR400R TRX400EX and TRX400X MODELS PHOTO IS NOT A STOCK IMAGE. IT IS EXACTLY WHAT YOUR HEAD WILL LOOK LIKE. THE PORTING IS EXACTLY THE SAME, AND IT IS THE BEST YOU WILL FIND. New aftermarket cylinder head and valve cover Full race port and polish Valve guides cut Valve springs, retainers, and collars Standard replacement intake and exhaust valves Valve stem seals Valve keepers Rocker arms and shafts All misc hardware required for assembly