What size are '06 Dyna exhaust O2 bungs

[Flhfxd]

Are these 18mm or 15?
Thanks, Flhfxd

[HarleyCharley]

I didn't know '06 had O2 sensors.

[Scotty]

18mm from memory 99% positive 

[rigidthumper]

Yep-18 is correct

[Flhfxd]

Thanks. 18's.  Thats what I thought. I think the 06 Dyna was the first to have a closed loop EFI system with the O2 sensors.....? But I could be mistaken

[FSG]

18mm       all spelt out in the 2006 Tech Forum   

[FXDBI]

Thanks. 18's.  Thats what I thought. I think the 06 Dyna was the first to have a closed loop EFI system with the O2 sensors.....? But I could be mistaken

You are correct , also 88in with the 6spd so it has 70t rear sprocket. First to get  the hydraulic tensioners that year has well.  Bob

[Scotty]

Only the domestic models got the O2 sensors though in 2006. The international models had the wiring but the bungs had plugs in them. You could put the sensors in and flash in a domestic map and away you went for tuning.

[FXDBI]

Only the domestic models got the O2 sensors though in 2006. The international models had the wiring but the bungs had plugs in them. You could put the sensors in and flash in a domestic map and away you went for tuning.

My 2006 Dyna had both sensors and it was international, Canadian market.  Bob

[Scotty]

Well North American market then, do your bikes start with 1HD1 or 5HD1 in the VIN?

No I just checked even the 2006 MODEL YEAR TECHNICAL FORUM states only dosmestic model 2006 Dyna's got the O2 sensors.
I know for fact that Euro & Australian/NZ models did not have O2 sensors in 2006.
Strange that Canada got them unless you get 1HD1 models then that would answer the question.

[FXDBI]

Well North American market then, do your bikes start with 1HD1 or 5HD1 in the VIN?

No I just checked even the 2006 MODEL YEAR TECHNICAL FORUM states only dosmestic model 2006 Dyna's got the O2 sensors.
I know for fact that Euro & Australian/NZ models did not have O2 sensors in 2006.
Strange that Canada got them unless you get 1HD1 models then that would answer the question.

Serial Number starts with a 5  has 2- O2sensors , I ordered it new in 2005. Also came with a KPH speedo.  Parts manual shows plugs for the bungs on the  international model. Also 3 different mufflers depending on country. Also muffler shields for international models. Which were not on my bike it had the US exhaust on it. Its even more of a mongrel than I even thought. LOL   Bob

[Flhfxd]

Well North American market then, do your bikes start with 1HD1 or 5HD1 in the VIN?

No I just checked even the 2006 MODEL YEAR TECHNICAL FORUM states only dosmestic model 2006 Dyna's got the O2 sensors.
I know for fact that Euro & Australian/NZ models did not have O2 sensors in 2006.
Strange that Canada got them unless you get 1HD1 models then that would answer the question.

Bought my '06 Dyna in South Carolina, in 2012 (when the CDN $ actually bought $1.05 USD).
So it's a USA model.
Not sure about the Canadian / imports exhausts.