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Bearings and SealsBearings and Seals

Dirt Bike Engine Bearings and Seals

Your dirt bike’s engine is intricately designed, with every piece performing a specific job to keep the machine operating as intended. Any engine component which is no longer functioning correctly can mess up an entire day’s off-road adventure. As small and simple as engine bearings are, they’re just as essential to the overall setup as anything else.

When it’s time to replace your dirt bike engine bearings and seals, Rocky Mountain ATV/MC has everything you need to get your motorcycle back in order. We stock a variety of parts from the industry’s big names. Are you looking for the All Balls countershaft seal kit? Check. Or do you want the Hot Rods crankshaft main bearing and seal kit? Yep, we’ve got that too. Just enter your bike’s make, model and year to see exactly what we have available for your motorcycle. (If you’d rather stick to original parts, no sweat! We also carry OEM bearings. Just click the OEM button at the top of the page.)

So whether you’re replacing your crankshaft bearing or rebuilding the entire engine from the ground up, you can count of Rocky Mountain ATV/MC to provide all of the dirt bike parts you need.

Latest Dirt Bike Bearings and Seals Reviews – You could win up to $500 for reviewing products!

  • Cometic Oil Filter O-Ring

    Cometic Oil Filter O-Ring

    Travis in AZ

    Worked Great!

    I had a poor seal on my oil filter which meant i was constantly adding engine oil. I bought this seal and now I dont have any problems at all.

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  • All Balls Counter Shaft Seal Kit

    All Balls Counter Shaft Seal Kit

    Garrett in PA

    No more leaking!

    If your bike leaks oil behind the counter shaft sprocket, look no further than the all balls seal. Gets the job done and hasn't gone bad since!

    Read All Reviews
  • Enduro Engineering Counter Shaft Seal Kit

    Enduro Engineering Counter Shaft Seal Kit

    Abner in AK

    No more oil leaks!

    Even came with two sizes of O-rings, I used the larger one as suggested and no leaks yet.

    Read All Reviews
  • All Balls Crankshaft Bearing and Seal Kit

    All Balls Crankshaft Bearing and Seal Kit

    glenn in PA

    Work Great!!

    Great quality bearings,Koyo bearings are high quality,sameas Oem at a fraction of the cost

    Read All Reviews
  • Hot Rods Crankshaft Main Bearing and Seal Kit

    Hot Rods Crankshaft Main Bearing and Seal Kit

    BILLY in NV


    i do 10 hours of riding in a weekend, Engine was fresh and this thing shattered putting metal all through my rebuilt engine. Used this bearing to save 20$, now I am going to be another 10 hours fixing this right instead of just using quality bearings the first time. Please learn from my mistakes and don't buy hot rods products, almost everything I have purchased from them has prematurely broken, this has been my last straw and I will never purchase hot rods products again.

    Read All Reviews
  • Tusk Engine Oil Seal Kit

    Tusk Engine Oil Seal Kit

    Tyler in OH

    seems good, had one seal leak though

    seems good for the price. Had the kickstart shaft seal go bad pretty quick. All seals were installed correctly too.

    Read All Reviews
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