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You are here: Home / Customer review: Spare Air

Customer review: Spare Air

By Robert Bolling

How often do you check the air on your spare tire?  It’s a pain in the neck to get down on the ground under your Airstream and check the tire pressure.  And then to get it pumped up, ugh.  If you’ve installed a TPMS sensor on your spare then at least you know its pressure. But you still gotta get down on the ground with a tire pump to add air, ugh. Frankly, because it is a pain, I’ve let it go more than I should.

I picked up the TST Spare Air at Alumapalooza 9 last year.  This seemed like a perfect gadget to solve this problem. It routes the spare tire valve to a convenient location where it’s much more likely that I’ll check and keep the spare tire pressure set correctly.

Here’s a view looking up under at the spare. I rotated my spare a bit so the hose routing and valve angle was more convenient and didn’t have any tight bends. A few zip ties holds the hose in place and out of the way in case I should ever need to use the spare.

Bottom line: It’s great! I highly recommend it.  My only complaint is that it seems a bit pricey.  At a hundred bucks you might be tempted to pass and go ahead and crawl under to check the pressure.  For me, after years of doing this, it was way worth it.

Installation is pretty straightforward for the typical Airstreamer. The instructions are worth following. The hardware is good quality stainless and brass.

The most important part is planning. You’ve got to decide where to mount the remote filler valve. For me, and probably a lot of late model Airstream owners, the battery box is a good spot.

You want to make sure there’s a good route for the stiff, high pressure air line from the spare’s valve to your mounting location without any tight bends.

Make sure the filler valve is easily accessible for checking pressure, filling, and doesn’t obstruct access panels, hitch equipment, etc.

Buy the Spare Air kit at the Airstream Life Store

Here’s the Spare Air filler valve installed. I took my battery out before drilling holes to make sure I didn’t accidentally puncture it.
Spare Air filler valve mounted to the side of the battery box with a TST TPMS sensor installed. I can now fill the spare without getting down on my back! Nice.

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