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Crankshaft AssembliesCrankshaft Assemblies

ATV Crankshaft Assemblies

If you have a seized engine, or are looking to overhaul or rebuild your engine, don’t forget to replace your crankshaft. Crankshafts rarely break, but considering that they are such a major component of your bottom end, they can cause a lot of damage if they do. At Rocky Mountain ATV/MC, we carry durable, quality crankshafts to get your engine running strong again in no time.

We carry full crankshaft assembly kits and connecting rod kits that are built to OEM specifications and designed to meet or exceed OEM performance. Our kits from Hot Rods and Pro-X are designed to last the lifetime of your ATV when properly cared for.

If you would like a stock crankshaft instead, be sure to check out the OEM section of our website to get the original manufactured crankshaft and any additional accessories that you may need. Check out our selection of crankshaft and connecting rod kits for your ATV today!

Latest ATV Crankshaft Assemblies Reviews – You could win up to $500 for reviewing products!

  • Pro X Connecting Rod Kit

    Pro X Connecting Rod Kit

    NATHAN in MO

    TRX250R PRO-X ROD

    IF YOU HAVE A TRX250R AND NEED A NEW CONNECTING ROD AND LOWER ROD BEARING, THIS IS THE KIT THAT YOU WANT TO BUY. BEARING AND ROD ARE MADE OF HIGHER QUALITY STEEL THAN THE HOTROD'S KIT OR ANY OF THE EBAY BRANDS. THIS ROD AND BEARING IS MADE IN JAPAN, AND SUPPOSEDLY IN THE SAME FACTORY THAT PRODUCED THE OEM HONDA RODS BACK IN THE 80'S.

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  • Hot Rods Complete Crankshaft Assembly

    Hot Rods Complete Crankshaft Assembly

    Dillon in WV

    Hot Rods Stock Stroke Crank

    Highly Recommend Crankshafts, We have installed them in many different bikes all with great results. There cranks are very durable and last a long time, they also offer stroker crank for certain models

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  • Hot Rods Complete Crankshaft Assembly  - Heavy Duty

    Hot Rods Complete Crankshaft Assembly - Heavy Duty

    melanie in OR

    Hot Rods Cranks

    I have put hot rods cranks in my 2 strokes as well as my 4 strokes and like them, except the one in my yz450f cracked in half in about 200 hours.

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  • Hot Rods Connecting Rod Kit - Heavy Duty

    Hot Rods Connecting Rod Kit - Heavy Duty

    Lucas in CO

    Good product

    You cant go wrong when buying a Hot Rods product. Just out of the box you can tell the quality of their work. Fit perfectly and is still running strong!

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  • Hot Rods Connecting Rod Kit

    Hot Rods Connecting Rod Kit

    AARON in WA

    Well Made Kit!

    this is a very good product. my rod lower end was getting loose so i ordered this kit. it even came in a very nice little plastic case, not a bag! all items need to replace the rod came with it, i did not have to order anything else from the dealer.

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