TRX 400EX 400X 440 Big Bore Kit 89 mil Cylinder Complete Top End Rebuild Kit +4
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FITS ALL HONDA TRX400EX, 400X MODELS AND YEARS
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NEW 89mm aftermarket cylinder
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Wiseco JE or CP forged piston**
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Hi temp piston rings
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Chrome wristpin
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Circlips
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Head stud kit
- Top end gasket kit
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Timing chain
This is a bolt on kit that requires no machining of any kind. Runs on pump or race gas. Everything is new in the original packaging and covered by warranty*
*Warranty: We stand behind all parts we sell 100%. If after installation there is an issue contact us for a warranty return. This product is NOT DIY. Over 99% of people in the world are not qualified to build an engine. It has to be done 100% correct, and many parts must be measured down to the .01”. The correct knowledge and tools are required to do this. We ALWAYS STRONGLY recommend parts be installed by a qualified, experienced mechanic. Warranty does not cover failure that is a result of improper installation, tuning, break in, or misuse. For any warranty to be considered the part(s) in question must first be sent back to us for inspection. We do not warranty parts based on phone calls, photos, or another mechanic's assessment alone. 99% of failures from kits that have pistons is because the ring gap was not properly set. It is the responsibility of the person assembling the parts to make sure this is done correctly.
We ship next day most of the time. Modquad parts are shipped Monday-Thursday. Engine Kits are 3-5 business days.
We don't do backorder! If your items has already sold you will be notified immediately and you money refunded on the spot.
Sold items are removed daily.
If you see it on this website, it is 100% in stock unless it just sold before you clicked buy.
If you call we answer, if you text we respond, if you have a question we respond. Sometimes we sleep so it could be next morning but we will respond.
Thank you for shopping with us! We appreciate you!
