M8 Vented Crankcase Breather Kit


  • Reduce or even eliminate the oil coming from the head breathers on your M8.
  • Stainless vent helps relieve excessive crankcase pressure.
  • Easy to modify your OEM transmission top cover plate with this kit.
  • For off-road use only
  • Comes with the hose, filter, hose barbs, drill template and zip ties.
  • 3/8″ fittings and hose let a lot of air move freely.

Fits all M8 engines including 2017+ FL & 2018+ Softails

Available on backorder

SKU: JAXM8BRKT Category: Tag:


M8 Vented Crankcase Breather Kit

Let it breathe! Our kit vents your engine with 3/8″ fittings and line to let your engine breathe.

Take the guesswork out of venting your crankcase. Our kit comes with all the parts needed to vent your M8 crankcase and a drill template to make sure you find the center the first time. You will just need some red loctite, 1/8″ and 25/64″drill bits to get the job done!

To easily remove the cover I highly recommend a mini ratchet kit like this one from Harbor Freight. It will make your job much faster and easier.

Our crankcase breather kit can be installed in under an hour.

Competition Use Only Parts may only be sold or used on motorcycles used in closed course competitions. They may not be sold or used on any motorcycle that is used on or off the public highways. Competition Use Only Parts are aftermarket parts that replace, modify, or alter any required emission control device, such as a catalytic converter, oxygen sensor, camshaft, or fuel control module.

Additional information

Weight 2 lbs
Dimensions 12 × 12 × 3 in