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Convenient system takes the hassle out of inflating and checking the air pressure of the spare tire stored under your vehicle. The 36" stainless-steel-wrapped hose lets you move your spare's valve stem location to your bumper.
Features:
Specs:
It's important to make sure that your spare tire is properly inflated in the event that you need to use it, but it can be a real pain to access the spare when it's stored underneath your vehicle. The Wheel Masters spare tire inflation kit takes the hassle out of checking air pressure and inflating your under-chassis-mounted spare tire.
A 36" long hose lets you move the valve stem location of the spare tire to an easy-to-access spot on your vehicle's rear bumper. This means no more crawling on the ground or blindly reaching for the valve stem on your spare. And the stainless steel wrapping on the hose helps prevent it from cracking or leaking.
Installation
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today we are going to review part number WM82286-S. This is the Wheel Masters Spare Tire Inflation kit for under-chassis mounted spare tires. This inflation kit will let you easily check your air pressure and inflate a spare tire that is mounted under your chassis. It will relocate your valve stem of the spare tire to the rear bumper and it keeps you from crawling underneath your vehicle to access the spare to check the air. This does include a 36 inch long stainless steel wrapped two-ply rubber tubing with nylon braiding. This durable wrapping will help prevent the hose from cracking or leaking.
It is a very simple installation with all this included hardware. There's no drilling required; it does even come with this 90-degree valve extender which will allow you to attach this-you just screw this on to your valve stem of your spare tire and it extends your valve stem of your spare tire out to an accessible location. Then you'll just take this end of your hose and it just screws on very simple and then at the other end, you just run this to somewhere underneath your bumper using the included bracket and hardware. You're going to just attach this to the bracket and this will be accessible right at the rear of your vehicle, so you don't have to crawl under to check the air in your spare tire. Again this hose length is 36 inches long; comes with a one year warranty and that should do it for review on part number WM82286-S-the WHeel Masters Spare Tire Inflation kit for your under-chassis mounted spare tire..
Ratings & Reviews

Larry
9/11/2025
Great! holds pressure and easy to check tire pressure of spare.

Robin
6/1/2021
A year later, and this extension still maintains the 60psi of the spare. Being able to confirm the spare pressure so easily is reassuring.

Orlando C.
2/2/2015
Patrick, thanks for following up. The productitem in question has performed/works as it was intended and I am very pleased with it. But there is just one draw back to it. You see the part that attaches to the rear bumper, chrome/metal parts tend to start rusting out after a few months? I was slightly disappointed in the fact that this happened. Does not look very good when viewing it. Other than that, as previously mentioned it works as it should.

Budman337
4/7/2016
Still working great - no problems.

Robert B.
4/21/2020
My only complaint is that the nut retaining the valve on the bracket is carbon steel and of course rusts. Could not find a SS nut to fit so I made one from a piece of nylon. That will never rust! Otherwise an excellent product.

David S.
3/20/2020
Great. Make sure the connections are tight. Had to air up the spare twice to keep dash warning light off. Slick.

Paul
12/9/2018
Hose is still working perfectly. No leaks and I am now confidant that the spare is properly inflated should I have to use it.

Jack D.
2/27/2018
After a year, my evaluation remains the same. I highly recommend this product.
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Kate F.
5/6/2026
Sounds like you’re off to a great start and already thinking through the install details Chris. Good call on being careful with the O-ring and making access to the spare easier going forward, that’s exactly where this kit shines. Where are you thinking of routing the line so it’s easiest to access later?