Hi all
I have a question
Is it possible to a older m8 air cleaner on a new 2025 street glide model 117 ?
i like the Screamin’ Eagle Ventilator Extreme Air Cleaner
or Heavy Breather Ventilator Air Cleaner but i dont no it fit on the new m8 ?
and breather hose .
very thanks \
Rick

 

Did you try Harley's website? Usually you can specify your year & model bike in your search and if you find the part you're looking for it should tell if it will fit or not.

 

I believe your 2025 Street Glide has a center cooled engine..... It's also an M8 Gen2, I believe, which would further complicate the fitment.

The HD SE Ventilator fitment says it will not fit center cooled models.... Plus, I believe the M8 Gen2 models have a different air cleaner box/backing plate bolt pattern.

I'm pretty sure an HD SE Ventilator air cleaner will NOT fit... at least not a direct bolt-on fit. Could it be modified to fit? I don't have the hands on experience to even guess...

I have not seen an HD SE Ventilator air cleaner listing a fitment for a center cooled, Gen2 engine.... If there is one, and I just missed it, I will be corrected...




I have seen an HD SE Heavy Breather Extreme air cleaner for center cooled models (excluding CA models)

https://www.harley-davidson.com/us/e...ner/p/29400454

https://www.harley-davidson.com/us/e...ner/p/29400455


They also make an HD SE Extreme Wedge air cleaner that looks a bit like the Ventilator Extreme, it's just angular where the ventilator is oval...

https://www.harley-davidson.com/us/e...dge/p/29400459

https://www.harley-davidson.com/us/e...dge/p/29400460


I hope some of this info helps... Good luck with your air cleaner mod...

 

The gen1 air cleaner uses head breather bolts for crankcase ventilation, the gen 2 does not.It uses the cover down on top of the transmission. The gen 2 throttle body bolt pattern is different than the gen 1. This is, if you trying to mount a gen 1 air cleaner on a gen 2 engine.

 

Gen 1 M8 air cleaners will not fit on Gen 2 bikes.
The stock air cleaner from a 2025/26 CVO ST ( big heavy breather style) will fit your 25, as will the SE Circle AC (29400488), SE Wedge (29400459), SE Vortex (29400528), and SE Heavy Breather Extreme (29400454).

 

oke thanks all