1. Tire Inflation and Repair
  2. Wheel Masters
  3. Tire Inflation
  4. Inflation Kit
  5. 2 Pack
  6. Hub Mount
Wheel Masters 2-Hose Inflation Kit - 22-1/2" Dually - Hub Mount

Wheel Masters 2-Hose Inflation Kit - 22-1/2" Dually - Hub Mount

Item # WM8005
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Tire Inflation and Repair
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Wheel Masters Hub Mount Tire Inflation and Repair - WM8005
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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 or aluminum rear wheels with wheel liners. Hardware included. Lowest Prices for the best tire inflation and repair from Wheel Masters. Wheel Masters 2-Hose Inflation Kit - 22-1/2" Dually - Hub Mount part number WM8005 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (6)
  • Q & A (2)
  • Videos (2)
  • Photos
  • Why etrailer?

Wheel Masters Tire Inflation and Repair - WM8005

  • Tire Inflation
  • Inflation Kit
  • Wheel Masters
  • 2 Pack
  • Hub Mount
  • 22 Inch Dual Tires

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 or aluminum rear wheels with wheel liners. Hardware included.


  • Inflation kit lets you easily check air pressure and inflate inner tires on your vehicle's dually wheels
    • Relocates inner tire's valve stem to outer wheel
    • No crawling on the ground or reaching for valve stem on inner tire
  • Stainless-steel-wrapped, 2-ply rubber tubing with nylon braiding
    • Durable wrapping helps prevent hoses from cracking or leaking
  • Simple hub-mount installation with included hardware
    • Hoses attach to valve stems on inner tires
    • Brackets mount on steel or aluminum rear wheels with wheel liners
  • 2 Hoses included
  • Made in the USA


  • Application: inner tires on 22-1/2"dual wheels
  • Length of individual hose: 15"
  • 1-Year warranty

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.

Hub-Mount Installation

Inflation Hose Kit Hub Mount

The dually inflation kit is designed for steel or aluminum rear wheels with wheel liners.

  1. Install the 2 included brackets on the hub of each inner wheel. Make sure to align the brackets with a hand hole.
  2. Attach the hoses to the valve stems on the inner tires.
  3. Run the hoses to the outer wheels and attach the hoses to the hub-mounted brackets.
  4. Screw on the valve caps.

8005 Dual Tire Inflators by WheelMasters - 22-1/2" Inner Dual Wheels - 2 Hoses - Hub Mount - Stainless Steel

Replaces RMT8005

Video of Wheel Masters 2-Hose Inflation Kit - 22-1/2" Dually - Hub Mount

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Wheel Masters 2-Hose Inflation Kit Review

Today we're going to be taking a look at the Wheel Masters two-hose inflation kit for the inner dually on dual rear wheels. This is a hub or center cap-style mount. Part number is WM8005. This kit's going to easily allow you to check your air pressure without having to crawl around on the ground and find that valve stem on that inner wheel. It offers a durable, heavy-duty stainless steel wrapping around a two-ply rubber tube which will give you years of good service by preventing any cracks or leaks. The first thing we'll need to do do install our new Wheel Master extension is to remove the valve cap from our inner dual wheel. Now we can take our Wheel Master extension.

We're going to pass that through the outside rim. We'll align it with our valve stem. Then if we just turn here on the front we can thread that right on. Now as we thread this on we're going to here a little air start to seep, indicating that it's Presta or Schrader valve, just like that. If we continue to turn, we're going to hear that seal up and go away.

Now we're ready to get our bracket mounted. Now we just want to flex our hose around here and determine exactly where we want to mount our bracket. Now we need to avoid whatever locations there are that hold the hubcap on. If you block those we won't be able to get it off. Looks like a good location there for it. We'll just hold that in position and we want to mark one of our whole locations.

Now we're ready to pull that hubcap off. This is a universal lug nut tool designed for use with your hubcaps that have the screw-on style keepers. Now we'll just slide that off and get our bracket mounted. Now once we center that first markup we'll make our second mark there. We'll take our 1" drill bit and we need to drill onto both of those whole locations.

Once we've got those holes drilled out we'll place our bracket on and secure it with the rivets. Now we can mount that right back on our wheel. Now we'll bring our stem right up through that bracket and thread on the nut to keep it in place. Got to tighten that down. You can use a 1/2" socket or a wrench. Doesn't need to be overly tight. Just want it to be good and snug so we don't have to worry about it loosening up. Now something that I find very nice about these are oftentimes we'll want to use an aftermarket TPMS system or something like that to notify us if we have any issues. Got this style here, more of a square. It's got the battery operation, and the battery is tall enough to where you can actually put these on and off without having to do any kind of special things with removing the valve stem or removing the bracket. Now if your sensor happens to be larger than that, this is a pretty good size one, but if it happens to be larger than that, you would just have to flex your bracket back a little bit to create a little bit more of a bend that would give you a little bit more room. But it's nice that these will go on there. You're not going to have to worry about interference. If you're not using the TPMS system, then you just want to put on the provided valve stem cap. Now to check your system for leaks you just want to spray some soapy water where our extension connected to the inner tire just to make sure you don't have any small leaks. We ought to give that a few minutes to sit. We'll check and make sure we don't have any small bubbles forming. We'll do the same process for the other side. We'll be ready to head down the road. That's going to complete our look at the Wheel Masters two-hose inflation kit, 22" in length. Part number is WM8005.

Customer Reviews

Wheel Masters 2-Hose Inflation Kit - 22-1/2" Dually - Hub Mount - WM8005

Average Customer Rating:  5.0 out of 5 stars   (6 Customer Reviews)

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 or aluminum rear wheels with wheel liners. Hardware included.

- WM8005

Arrived by specified date and product was as expected. I would recommend this store. 106215

- WM8005

Back in 2014 I owned a Class C motorhome for which I bought a TPMS of the type with external sensors on the 6 valve stems. Over the next two years I had endless problems with air leaking from the several rigid types of valve stem extenders that I bought. Then, in 2016, I upgraded to a Class A motorhome and transferred the same TPMS to it with one big difference: Purchase of the Wheel Masters WM8005 dual tire inflation kit from etrailer. At one year and 10,000 miles later, there has been NO leakage from the inner duals, and I am very pleased with this purchase. 459240

- WM8005

This product installed simply and easily and works as expected. I replaced faulty valve stem extensions on my motorhomes dual rear tires. I would recommend it. 505758

- WM8005

Excellent looking product all components there. would buy again Commercial Truck and Tire Milton Fl. 744628

- WM8005

Easy install, no leaks, very satisfied 604758

- WM8005

I've had them installed for about a year, now, & have had zero problems. I've heard people say, "don't use extenders, they leak". Well, either they don't know what they are talking about or they've never had these. 501871

- WM8005

Excellent product, fast service. etrailer is great to work with. 492607


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Info for this part was:

Edited by:
Leah B
Expert Research:
Jameson C
Written by:
David L
Video Edited:
Jacob T
Updated by:
Adele M
Updated by:
Sarah W
Video by:
Kathleen M
Test Fit:
Randy B

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