Replacement Valve Extenders

[BradnKaren]

We have a 2017 Challenger 37LX. The factory installed valve extenders have started to leak. Does anyone have a link to replacements that would fit on our RV? Have search on line, including Amazon, but cannot seem to find an exact replacement. The origianls measure 5-11/16" (145mm) end to end. Thanks!

[Grumpy Grampa]

You could try Thor Customer Service with your vin number.

Good luck.

[ducksface]

Do not call Thor over such a thing.
They're busy with folk who NEED their customer service.
A poster here once called them for wood screws....

Thousands of choices on Amazon and ebay, etrailer, camping world and dozens of others.



I'm going to suggest going to a pro that knows if a 1/16th of an inch or 3 inches will make any difference, then have the pro do the install.

A picture you post here of the offending part, both on and off the vehicle, will help a lot to either replace or cure.

[DavidEM]

I assume you are talking about straight metal valve extenders. The closest I could find after searching four pages on Amazon were these at 140 mm or 5.5”. For all I know they may be exactly 5-11/16” overall. Give them a try.

See: https://www.amazon.com/Bluecell-Stra...0&sr=8-51&th=1

David

[Grumpy Grampa]

If you choose. Thor has a parts department. That can help you.

Safe travels.

[Pete'sMH]

Are you looking for flexible extenders? As you’ve noticed, they leak. You can get actual dually valves which are metal stems that are accessible from the outside wheel. It is the best solution but it costs about $150 for a set and the tires have to be removed from the wheels which can cost another $150 or so for four wheels. If you’ve not replaced your tires yet it’s certainly time and it would be a no cost time to install.

[txc2936@yahoo.com]

These are readily available on the web, I went thru this issue last yr. I replaced a few times, to actually find a pin hole in the tire tread. But they are available in all lengths. Great time to install TPMS sensors. These will detect that one or two PSI drop in your tires over a month.

[PaulH]

I had an extension break off last year, in the morning it was there, at the end of the drive it was gone. Who knows how....
Luckily, the tyre stayed up.
Anyhow, I did struggle to get exactly the same and settled on a flexible extension from Amazon, I got 2 so now keep a spare one added to the spares locker.

[Pete'sMH]

It’s interesting that I fussed with this issue on my several Ford based RVs. I now have a Chevrolet based class C and I was delighted to find that the holes in the wheels are large enough for human hands and it is a truly simple matter to check and add air in a normal manner with ho extensions at all. Why aren’t all dual wheels made this way??!

I typically only adjust tire pressures twice a year. I have to add air for cold weather travel and sometimes need to adjust for warm weather. I have no problem using the factory short stems because the wheels on a Chevrolet chassis have holes that actually allow a human hand to fit. Imagine that!

[ducksface]

https://www.amazon.com/s?k=valve+ste..._ts-doa-p_4_10


I am not understanding an iota of this entire conversation.

It's not an aortic stent.
There is no need for precision past thread size and seal.

[Howard1257]

2015 Thor Citation Nothing but low air. Two flat tires change on the road . Nothing but problems with extentions .Now I need a new tire. Having them removed oo n Tuesday.

[Galobo]

I agree with Duckface and I would suggest your local NAPA store for the parts.

[10scDust]

Our class C RV has a braided line coming from the inner dual on the rear tires. It is held with a folded piece of steel clamp that pinches the rim opening with a small pinch bolt threaded into it.

The fold of one of those clamps failed, the metal broke at that location, allowing the assembly to fall in between the two tires. The folded metal clamp, now broken, was the size of 2 guitar picks. While between the tires, it began cutting into the tire's sidewalls, causing one to go flat on the road.
As you may know. sidewall cuts are not repairable. Thus a new tire was needed.

Beware of my experience, and check yours for failure, if your RV uses this same system.

[Chateau_Nomad]

Over 4 seasons of use, I've found I only need to adjust tire inflation on our class C once at the beginning of our camping season in April.

The inner duallies are the only ones I can't reach, so I use an extension. The ONLY thing installed on the factory valve stems is the TPMS sending unit.

The inconvenience once a year of fumbling with an extension FAR outweighs the inconvenience of a slow leak in a permanent mounted valve extension.

I've had zero issues with the factory stems... I like that.