Engines Complete Motors

Unlike most stores where you order one specific part of a Dirt Bike Engine, this is a complete dirt bike engine that is actually FULLY assembled and ready to install! These items include the Complete OEM Motor from the Manufacturer, with all the internals of the motor included:

  • Transmission gears, the crank
  • Connecting rod
  • Cases with bearings
  • Clutch system
  • Stator fly wheelset
  • Cylinder and piston
  • Complete cylinder head that includes the valves springs cams and any outer case covers that are required for the engine to run properly!


So, instead of messing with an engine that has blown up multiple times, just replace that worn engine with a complete BOLT-N-RIDE Motor and get back out there riding!

We have amazing customer service, so please reach out to a live agent via the helmet icon at the bottom right hand of your screen. We are quick to respond! Doing business with us is easy and efficient. Please don’t hesitate to call we’re more than happy to help with any and all questions.

Showing 1–16 of 51 results

4.9 rating
4.9 out of 5 stars (based on 327 reviews)
Very good14%

Drz400 carb upgrade FRC

5.0 rating
2 weeks ago
Review of Home

had a lectron carb on my DRZ and it was good improvement over my stock carb but then I rode a bike with this carb.. now a $1000 later I can say im happy with this bike and its wheelie capabilities.

John Garnette


5.0 rating
6 months ago
Review of Home

So glad I found oemdirtbikeparts.com…..parts, service, support, everything about them is awesome. My RFS has never run better than now….thanks for a fantastic carb! First place I will contact anytime I need anything!

Larry Bernier

Wr450f carb complete

5.0 rating
6 months ago
Review of Home

I just wanted to say that the carb I bought from you for my 04 WR 450 is perfect. I didn’t even touch the air screw. Starts perfect, just a quick choke, then idles so nice. Power is way up from my old carb, which I figured ran perfectly. No popping on decel, nice crisp response. Even the famous stuttering from the TPS is almost gone. This thing could almost give my old GS 750 a run for it’s money. Very happy customer.

Site Reviews