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Stainless-steel-wrapped hoses take the hassle out of inflating and checking the air pressure of inner tires on dual wheels. Kit is designed for steel rear wheels without wheel liners or covers. Hardware included.
Features:
Specs:
Checking and maintaining proper tire pressure is important for ensuring a safe, smooth ride and maximizing fuel economy, but it can be a real pain with dually tires. The Wheel Masters inflation kit takes the hassle out of checking air pressure and inflating the inner tires on your dual wheels.
Two hoses extend the valve stem location of the inner tires to the outer wheels. This means no more crawling around on the ground or blindly reaching for the valve stem on the inner tire. And the stainless steel wrapping on the hoses helps prevent them from cracking or leaking.
Hand-Hole-Mount Installation
The dually inflation kit is designed for steel rear wheels without wheel covers or wheel liners.
I used these on my 2017 Ram 3500 for the inside rear wheels. They work great.
I have always found the etrailer web site helpful and my most recent order is exactly what I wanted and as represented by the company.
Order was delayed since not in stock but I eventually got what I needed as described. Would have been good to know they were on back order or not available for immediate shipping. That way if I needed them ASAP I could have looked elsewhere.
These valve extensions were very easy to screw on. No tools necessary.
The service from etrailer is always fast. They shipped out the same day the order was placed.
Work very well on rear inside dually tires. Mount to outside rim to allow easy access to inside tire for pressure test or tire monitor.
Installed on valve stem with minimal air loss. Afterwards was easily able to inflate the inner dual tire and check the pressure.
This valve stem extension setup was on my motor home duals when I bought the coach and worked well, but only on one tire per side. I wanted the same setup on all four rear tires but had trouble finding them. Someone on a RV forum said to try etrailer and their they were! They are simple and light enough not to affect tire balance and work like a charm. This is one year later and no regrets.
Friendly Fast Service
I ordered the parts and they were delivered
Thank you.
Product seemed of good quality. Although I was unable to use them as the hoses where to long for my application. The mounting tabs fit well.
These don't fit our 2010 F-350. The bends at the ends of the straps assume your rims are stamped or pressed, and have an edge on their insides. Ours don't: our rims are pretty solid and the holes have 90-ish degree angles inside and out. I had to use pliers to flatten the strap ends so they'd go in the holes in the rim. Nothing secures them once there. So I reached around the back of the outside tires to try to bend the straps' ends to fit, but that's not a sure thing. Any vehicle that has similar rims will have the same fitment problem.
We take our truck camper off road on occasion. The locknut *should* keep the straps in place. However, "should" isn't the best feeling when RVing.
I have had problems using these on both sides for my dual rear wheels. adding air takes over 5 minutes to increase pressure a couple pounds. not very good flow. Next time i have the rear wheels off, I will have to look at them and see about a replacement.
nice valve extenders, quality built. the reason for the low rating is because it didn't include the Retaining nuts.
Wheel Masters 2- Hose Inflation Kit was easy to install and has been working great. It provides easy access to check pressure and air up my tires.
I’ve had the hardest time finding an extension like this to fit my 17.5 trailer wheels. Thankfully I came across these because they worked perfectly. Such a relief that checking air and airing up won’t take 20-30 minutes anymore
These extenders are only mountable into oval cutouts of a certain size. They will kink if used otherwise.
Heather A.
7/10/2018
The brackets are 5-1/2 inches long so any oval cut out longer than 5-1/2 inches will be too big for this kit. The bracket is flexible and can fit into smaller holes as long as they are not bent drastically like 90 degrees or more.
Worked as Adertised
Appears to be a superior fix for the original Dicor plastic insert that broke easily
GREAT PARTS GREAT SERVICE FAST SHIPPING
Richard 
9/1/2025
Great no problems.
Works good. No concerns or issues. Easy to install.
Works out alright a little tight but it’s fine ,,thank again
H
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Mike L.
9/16/2025
Sorry about that, I'll have one of our Customer Service folks reach out!