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2019 KTM 450 SX-F
Delete this machine from profileSelect this machine2019 HONDA CRF450R
Delete this machine from profileSelect this machineRocky Mountain ATV/MC.com has a complete inventory of UTV engine parts so you can spend more time riding and less time looking for the parts you need. We have UTV cylinder kits, clutch kits, crankshaft assemblies, rod kits, drive belts, engine valves, shim kits, gaskets, pistons and more. Make sure you keep your UTV’s engine running in prime condition with a high quality oil filter like Tusk’s First Line Oil Filter which is made of quality metal, rubber and paper materials for maximum filtration and flow. When it comes to clutch kits, we have the best available like the EPI Sand Dune Clutch Kit made specifically for riders who frequently ride on sandy terrains. One of the best things about shopping at Rocky Mountain ATV/MC.com is our customer reviews which provide valuable feedback on the products we sell from UTV riders just like you. Customer reviews can be found at the bottom of each product category page, so be sure to check them out when you’re shopping for UTV parts. Find all the UTV parts you need in one place so you can get back to riding – only at Rocky Mountain ATV/MC.
Christopher in NY
Came with everything I needed to rebuild my YZ250X and I have zero complaints!
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This kit has every seal for my top end. They are good quality for a good price.
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Worked out great part in picture showed it had exhaust bridge holes in the piston which it didnt . But came with instructions on how to apply them wasn't to much of a hassle over all satisfied.
Read All ReviewsCorey in OH
Very nice cam. Improvement was nice to sons crf250x. Had stock cam fail with rocker. Aftermarket rocker required light grinding as described in directions. Stock rocker assembly would have worked without modification. Thinking about a stage 2 for my 450r.
Read All ReviewsJonathan in MT
Great set of valves, for the price! On my second set now! Performance is awesome! Have a stage 2cam n plenty of hop-ups, very happy with my second purchase of the kibblewhite black diamond valve sets!
Read All ReviewsChristopher in NY
I had to rebuild my YZ250X and pro-x has always been a go-to for me. It's basically equivalent to OEM but a lot of times it's cheaper. Perfect fitment and longevity.
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