Engine Compartment Blower Hose, L&R Where to Buy Options

[NARP74]

I borrowed this pic from @skota23 in another topic. Does anyone know where to buy the hoses like this? I have seen and tried others but they have issues and I wanted to try these.

[wonkipop]

ok

i've dealt with this problem.
30 years ago, much to my horror, the guys who performed all the rhd conversion engineering and approval work on my car split my original short lhs heater blower hose in half to extend the system across so it used the rhs side. this was because certifying engineer would only accept the defrosting bias if it was switched.

i reinstated the original set up as soon as i had the car registered and on the road.
but i was left with a beautiful original hose that had been in perfect condition that had been cut in half.

i went to a mercedes parts guy back then in perth and was able to find an almost identical heater hose that he supplied. it was 65mm in diameter. i sleeved it over the two ends of my original heater hose and let the ripples in both hoses contact with each other for a binding fit. at least that was the theory. but it proved a little too loose and would always work its way loose.

so more recently i tracked down some Eberspacher ducting. used for caravan/camper van heating and a/c systems. its 60mm diam. i cut a length of this and sleeved it very tightly over the existing two ends of original hose. this let me use the end sections with the original clamps for a good fit to the blower and the engine tin. its been a good binding fit to the original hose halfs and has not worked its way loose.
this hose is fantastic. almost indistinguisable from original. it bends to shape but retains shape it is bent to. its perfect. i am sure you can fit it directly to blower fan and engine tin without fussing the simulation of the factory part like i did.

eventually i notice most original factory heater blower hoses bite the dust and develop splits anyway by this point in time.

https://www.caravanrvcamping.com.au/airtron...60mm-outlet-kit





airtronic ducting i now have on left. 60mm diam.
mercedes benz ducting i had used on right. 65mm diam.




how it looks in engine bay.
nice semi rigid ducting that holds to the shape you bend it to.




as to the extended heater hose that you see on some 74 and 75 cars and the duct splitter that lets you do the two hoses, the reason its not in the PET is i believe it was not offered by the factory for the 914s. i think dealers worked out they could use the twin hose set up that was on VW 411/412 variant/squarebacks. that particular type 4 sedan had a fan that was squeezed over in the space on the left hand side of engine bay. it used the same fan as used on the later 914s with the extra attachment to do the duct split and the long hose to get across the engine as well as the short hose. also had the clip to hold the hose over the fan casting. you can find all the bits in the type 411/412 parts catalogue with the part numbers. go to VW classic website germany. but can you still buy the parts? i don't think so. you might find them in a wrecking yard on an old VW 411/412.
it will be on the squarebacks only. the sedans had the other type of fan that was on earlier 914s with the two outlets either side.