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Air Compressor airing Class A 19.5 tires

1BryNelson
Explorer
Explorer
After reading alot on here about portable air compressors. I'm looking at the Kobolt 1.5 hp 120v 155 psi.
3 gallon tank.
Does anyone have expierence with this unit or have other suggestions.
Right now I have 19.5 tires but never know, so want it to handle 22.5's just in case I find someone that needs help.
Bry Nelson and a yet to be discovered MoHo momma. '99 Pace Arrow Vision 37ft F53 chassis (plugs tightened) Allure flooring, 15k BTU front a/c , 6-6 volt batts with 1120 watts of solar Magnum inverter Remote BMK Trace C40 2005 Ford Ranger "Toad on a pad".
18 REPLIES 18

liborko
Explorer
Explorer
I use Viar #48043...200psi 480C 12V 100% duty air compressor. This compressor is particularly suitable for permanent installation...to power air suspension, air horns etc. Available thru Amazon from Mobile Air Systems for $269.95.

chevylover1965
Explorer
Explorer
RVGeeks tested this portable compressor system. They highly recommend it.
2015 Tiffin Allegro 36 LA
2006 Tiffin Phaeton 40 QDH (Sold)
2016 Chev Equinox LTZ AWD V6
Roadmaster Falcon All Terrain tow bar/US Gear
FBINA 144

1BryNelson
Explorer
Explorer
Does anyone have experience with the Kobolt for light mechanical maintenance, like removing the bolts the hold the hubcaps on to be able to get to air nozzles.
Bry Nelson and a yet to be discovered MoHo momma. '99 Pace Arrow Vision 37ft F53 chassis (plugs tightened) Allure flooring, 15k BTU front a/c , 6-6 volt batts with 1120 watts of solar Magnum inverter Remote BMK Trace C40 2005 Ford Ranger "Toad on a pad".

FIRE_UP
Explorer
Explorer
hershey wrote:
NeverHome2 wrote:
Having a diesel pusher motorhome I just carry a 50 ft. air hose with an air chuck.
I did as you suggested for 8 years of fulltimeing. It does work, but its really an act in futility and patience. I didn't buy a compressor because I didn't want to give up the room and the weight of the unit. After two years with the Kobalt unit, I kick myself in the rear for not getting one 8 years before that. So much easier and useful for other tasks. But your right, the MH compressor will work but takes patience and a learning curve.


Yep, the engine air compressor will most certainly do the job of topping off tires. It has a fairly fast recovery rate but, the primary reason I use the one I showed in the picture is 1, for noise. I figure that, that little compressor is considerably more quite than a C-7 firing up, especially in maybe the early morning or, later in the evening when, say I need to fill up some bicycle tires for an evening ride. And 2, it's not very big, takes up little room and, for the most part, is pretty convenient to use.

I like having the option of two air supplies. Depending on what the circumstances are, I can pick and choose what air supply I will use, depending on the volume needs etc.
Scott
Scott and Karla
SDFD RETIRED
2004 Itasca Horizon, 36GD Slate Blue 330 CAT
2011 GMC Sierra 1500 Ext Cab 4x4 Toad
2008 Caliente Red LVL II GL 1800 Goldwing
KI60ND

hershey
Explorer
Explorer
NeverHome2 wrote:
Having a diesel pusher motorhome I just carry a 50 ft. air hose with an air chuck.
I did as you suggested for 8 years of fulltimeing. It does work, but its really an act in futility and patience. I didn't buy a compressor because I didn't want to give up the room and the weight of the unit. After two years with the Kobalt unit, I kick myself in the rear for not getting one 8 years before that. So much easier and useful for other tasks. But your right, the MH compressor will work but takes patience and a learning curve.
hershey - albuquerque, nm
Someday Finally Got Here
My wife does all the driving - I just get to hold the steering wheel.
Face Book Group: All About RVing and We Fly RC's
Expedition - Chevy Equinox

NeverHome2
Explorer
Explorer
Having a diesel pusher motorhome I just carry a 50 ft. air hose with an air chuck.
Lovin' Life!!!!

2005 HR Endeavor

the_silverback
Explorer
Explorer
As I have said before the tank is a waste of space and money. If you have to buy a compressor with a tank get rid of it. You don't need a tank to fill tires!!! You need at least 125 psig compressor. The higher the cfm at 125 psig the faster it will fill the tires.
the silverback
2015 crossroads Rushmore 5th wheel

Johnny_G1
Explorer
Explorer
I carry a twin tank 140 psi one that I bought at Sear's 12 yrs ago and it cost $450 on sale then puts out 5 cubic @90 lbs per minute and has pumped up a lot of tires to 125 lbs.
98 Mountain Aire 34' 210 Cummins Puller and 2001 dodge dully with all the toy's, 400 + hp pullin a 2001 32.5' Okanogan 5th wheel, new to us after 5 yrs with the 28' Travel Aire. Lots of fun.

2oldman
Explorer II
Explorer II
If noise is a factor,the Craftsman products can be very loud. My 4 gallon pancake unit was deafening.
"If I'm wearing long pants, I'm too far north" - 2oldman

FIRE_UP
Explorer
Explorer
DSDP Don wrote:
I would say there is little to consider if you're buying a compressor just for the purpose of filling your tires. First, they really only need to be aired up every few months, if that often. Second, you don't need a storage tank type compressor to do so. Third, why buy something so big that it takes up a bunch of space.

The Sears model listed here. is perfect for filling tires, even 22.5's. I timed mine and it takes about 1.5 - 2.0 seconds to add one pound of air. Since it's being used to just top off the tire, it doesn't need to be that quick or powerful.


Outstanding answer,
I couldn't have stated it better myself. I mean, you're not going to paint a car so, you don't need a massive storage system. And, keep in mind, that just about any of those "tiny" models, no matter what kind of "Max pressure" they put out, are just that, "TINY"! There's no volume there. The one Don recommends is carried by me and many others here that have looked in the past, trying to find one. It's one of the best comprimises one can have.

About 99.999999% of us are not going to fill a 19.5 or, 22.5 tire from EMPTY anyway. It's (the compressor in question) primary concern is "TOPPING OFF" either of those larger sized tires. And, it used to be a Sears only unit but, now it's also under the "Porter Cable" brand name too. It's the same exact compressor, just a different label.
Scott
Scott and Karla
SDFD RETIRED
2004 Itasca Horizon, 36GD Slate Blue 330 CAT
2011 GMC Sierra 1500 Ext Cab 4x4 Toad
2008 Caliente Red LVL II GL 1800 Goldwing
KI60ND

DSDP_Don
Explorer
Explorer
I would say there is little to consider if you're buying a compressor just for the purpose of filling your tires. First, they really only need to be aired up every few months, if that often. Second, you don't need a storage tank type compressor to do so. Third, why buy something so big that it takes up a bunch of space.

The Sears model listed here. is perfect for filling tires, even 22.5's. I timed mine and it takes about 1.5 - 2.0 seconds to add one pound of air. Since it's being used to just top off the tire, it doesn't need to be that quick or powerful.
Don & Mary
2019 Newmar Dutch Star 4018 - All Electric
2019 Ford Raptor Crew Cab

hershey
Explorer
Explorer
When choosing an air compressor you have to first consider
1) what is the max air pressure I need to achieve in the tire
2) what size tank should I get?
3) what is the recovery time for the compressor?
To pump up a tire to 100 psi, I would suggest a compressor that would be able to pump up to 125 psi, minimum
I would suggest a tank size of 2 gallons minimum
cfm of 2.5.
Of the above, the higher cfm at a higher pressure is the key to the recovery time in use. Most cheaper compressors recovery at 90 psi is much lower than 2.6 so as you get close to the 100 psi in the tire, the compressor will labor to achieve that last 10 lbs or so. The Kobalt that the OP mentioned meets and exceeds all of my suggestions.
hershey - albuquerque, nm
Someday Finally Got Here
My wife does all the driving - I just get to hold the steering wheel.
Face Book Group: All About RVing and We Fly RC's
Expedition - Chevy Equinox

wa8yxm
Explorer III
Explorer III
Bagger97 wrote:
SEARS runs an on-line sale every few months for a good sized unit for like $79. It's what I used when we had a Tiffin


I carry a Sears huffer puffer.

As for the Kobalt line.. I have several products in that line, no complaints, but .. The warranty is better on the Sears unit.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times

Bagger97
Explorer
Explorer
SEARS runs an on-line sale every few months for a good sized unit for like $79. It's what I used when we had a Tiffin
Alan & Patty
2020 Tiffin Open Road
2020 Nissan Versa toad
Gypsy Rose