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Mrs Lynn Astill

Diesel Heater fuel tank cap.

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Hi all,

Has anyone had to replace their diesel fuel tank cap for the Eberspacher Airtronic diesel heater. Ours has broken through sunlight and old age, but I cannot find a replacement that fits. We are currently in Esperace WA and I have tried all the obvious places including the local caravan shop which seems to have most parts. The lady there offered me a Dometic cap as she indicated that Airtronic was now owned by dometic. It was too small. Any ideas?? Ours has DIESEL embossed on the top. Kedron are closed until 19 Jan so the tank has the old glad wrap and a rubber band on it. I hope it works better than in my youth.....lol.

Regards

Chris.

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There is a guy in Tasmania, who sometimes frequents this forum. "Graeme Y" is his forum name, he's a has really helped us with our Webasco diesel heater. Hopefully he will see your post, or look back to some of his posts for his contact details.

Hope this helps a bit.

Peter

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Thanks Ann and Peter for your help. Yes Ann, the tank is black and after reading the link, it seems not an uncommon issue as mine leaks diesel when travelling with the tank full also. Peter, thanks, I have noticed Graeme now that you mention it. I will follow up on both leads. Thanks again folks.

Kind regards

Chris

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I priced the Dometic / Ebersparcher diesel tank cap at $30 and was not prepared to pay that price for a cap that cost less than 10 cents to produce.  I found two items at Bunnings that do the job perfectly and the cap is much better than the original cap.

 

You need to buy a 40mm DWV PVC male fitting adaptor from the plumbing department. (see photos below)  It has a thread on one end and is smooth on the other end.  The smooth end fits perfectly into the inside of the fuel tank filler.  About 3 metres from the adaptor in the same aisle is a one and a half inch black plastic cap with a Philmac brand on it, it has a hex shaped base to make it easy to unscrew the cap. 

 

You need to put a little plumbing primer and the blue plumbing glue on to the white fitting before slipping it into the fuel tank filler.  Clean the inner of the fuel tank filler thoroughly to remove any diesel and rough it up slightly to allow the glue to grip the inner side of the filler tube.  Any fuel resistant sealant or glue will do if you don't have plumbing primer an plumbing glue.

 

Drill a tiny hole through the white plastic plumbing fitting at the base of the thread before gluing it in place so the tank can vent and does not form a vacuum whilst fuel is drawn from it
.  Glue the white fitting with the vent hole down to keep moisture out of the tank.  The vent hole is probably not necessary as the cap does not have a sealing ring and will probably let a small amount of air past the thread but I can't guarantee it.

 

Total price for both fittings is under $6.50!


If you lose the cap again a replacement costs under $3.00

 

cap2.JPG

cap1.jpg

cap3.JPG

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Hi Karl,

That is an 'excellent fix'....thanks for that!

Travel safe, cu down the road.

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Maybe, look for a burgundy Jeep Grand Cherokee and a Leader off road van!  Heading to Qld late 2019.

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Ha ha......just got to understand to be a ‘Leader’ you have to be in a ‘Kedron!’

Travel safe and enjoy your diesel heater!

Cheers

Tony

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