Smittybilt 5.65 CFM Air Compressor - 2781

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  • Smittybilt | Part Number: S/B2781
  • Duty Cycle:40 Minutes @ 40 psi
  • Maximum Air Pressure:150 PSI.
  • Amp Draw:36 to 50 Amps
  • Voltage:12 Volt
  • Fitment:Universal Fit


For the added convenience of being able to air-up or air-down your tires to accommodate various types of terrain, a Smittybilt Air Compressor is the most powerful compression unit in its class with a 1/3 horsepower oil-less direct drive motor and a 30 amp inline fuse.

Climbing over rocks, tearing down a rugged slope, blazing a trail through mud and undergrowth—all of these are bound to challenge your tires and eventually lead to one slipping off the rim or blowing out. The last thing you need is to be stranded while off-roading, so a good air compressor is a must-have for jeepers. When it's time to shop air compressors, 4 Wheel Parts is the place to go. Pick up a powerful Smittybilt compressor and stay prepared when you're off the beaten path.

The Value of an Air Compressor

Out in the wilderness, you know that help is far away if your rig gives out on you. Carrying or mounting the right equipment can be vital in helping you get back home. Portable air compressors, spare tires and tire patch kits are part of the essentials for off-road maintenance. Not only does having an air compressor on hand let you repair or replace tires when needed, it also lets you adjust tire pressure to best meet what lies ahead. With some types of terrain—for instance, sand, snow, mud or sharp rocks—partially deflating your tires is actually the right idea, improving traction and reducing the risk of punctures. A brand like Smittybilt will give you the highest CFM 12V air compressor you need, meaning adjustments and repairs are quick even for heavy-duty tires, putting you back on track sooner.

The Difference

When gearing up your Jeep for your next off-road expedition, you want the best quality equipment you can get for your money. Skimping out can put you and your rig at risk, but with 4 Wheel Parts, you don't have to compromise between price and power. Everything is listed at low prices, and we back that with a price match policy against any competitor for up to 90 days. This is your chance to get the Smittybilt air compressor you need. Take the shot—order today!

Customer Reviews

4.6 4.6
79 Customer ratings

Customer Images

5.0 confidence in the wilderness

With this compressor I'm now much more confident airing down in the back country and reacquiring road pressure on the way home. A fine machine!

from oregon |
2.0 inaccurate gauge. not high performance but ok

Giving 2 star for 2 reasons. 1. The gauge is worthless, not at all close reading. 2. the air chuck is screw on. So Annoying. Bought this to save on using my CO2 tank and save me from trips to gas station to top off my 36" tires and our 2 daily drivers cars. its a small handy unit that does well on inflating. Air gauge is so way off that I have to keep unscrewing air chuck to connect my digital gauge to check PSI. I wanted to change the air adaptor fitting but so far there is no match (?chinese fitting?) and you cannot remove the air chuck from the hose unless you cut it off. It could be improved if this would be able to plug this into AC so it would be more convenient rather than starting up car/truck to power the Air compressor. the bag/case is nice but be better if it was not so wide, I have to remove the Coiled hose in order to store it in vehicle compartment.

from CA |
3.0 Wish I had bought a different brand

I came into the store with the intention to buy a different brand compressor. After talking with one of the sales reps I went with his recommendation and bought the Smittybilt. I used it the next two days over three different times. It worked fine but it had its limitations. First, screwing the hose on and off of the valve stems was difficult. Maybe that’s just because the valve stems are recessed on my wheels. Second, the gauge was way off. So I had to fill my tires to 10 ponds over and adjust the pressure down after removing the gauge. Third, the storage bag is already showing a lot of wear and I doubt it will last much longer. This product has fewer features than some of its competitors but that’s what you get for the lower price. These things I mentioned may not be an issue for you so in that case this would be a good buy for you. As I stated earlier, it works fine. I am carrying some extra hose clamps in the bag just in case I run into the same hose problems other reviewers mentioned.

from SoCal |
1.0 very disappointed

I bought this pump because i was impressed a friend had one , so my family & I we bought 5 of them . I purchased it on April 23, 2020 , didn't use it till 6/ 13/ 2020 , my son & I coming off the beach to refill our tires we both had the same pump i got to fill all 4 of mine up , as i walked back to shut pump off yellow hose blew apart , my son just started to fill his first tire & his hose blew . good there were other people around to lend us a pump to fill his tires . 6/ 15/ 20 i called & was instructed to e-mail with pictures proof of purchase etc . it is now 7/31/ 20 still no replacement hose , was told they were coming still nothing . have no use of the pump as i am on the beach 3 to 4 xs a wk . either u refund my money or send me a complete new pump

from Long Island , NY |
5.0 I love this Smittybilt Air Compressor

I love this compressor. I have owned and used it for over a year for my Jeep Wrangler and for a lot of other uses as well. I was able to get a Japanese Female Connector and used a brass close fit nipple to attach a Female US air chuck so I can attach any device I need. This compressor has helped us out a ton and I highly recommend it.

from Brigham City, UT |
This adapter makes it so you don't have to cut off the Japanese male end to use with American air chucks.  I bought this Japanese Female Chuck on Amazon


Question & Answers

16 Answered questions

Q: Does it shut off when it reaches pressure Answer this question

A: No

Answered by Scarlett from Cal on 01/27/2021

A: No not at any particular pressure. It would keep going, it will shut off if it gets to “hot”.

Answered by Kelly from 4WP Corporate Headquarters on 01/27/2021

Q: is this compressor weatherproof? can it be mounted in a truck bed or under the vehicle? Answer this question

A: This compressor may be hard mounted in a dry location. Be sure to use proper size wiring for your application. When using this unit with an air tank, you must install a back-flow preventing device to prevent damage to the cylinder head air valve.

Answered by Dave from 4WP HQ on 04/04/2022

Q: Does this Compressor need to be mounted upright, Or can it be mounted in any orientation?  Answer this question

A: I believe it can be mounted in any position. I haven't tried mounting mine, u use it as a portable unit but there shouldn't be a problem. Hope this helps

Answered by Scarlett from Cal on 11/09/2021

Q: I have 37x13.5x17 E rated tires on a Ford Superduty. What PSI could I achieve using this compressor? Answer this question

A: There is no defiant answer, depends on current pressure in tire, temperature etc.

Answered by Kelly from 4WP Corporate Headquarters on 03/30/2021

Q: 2015 JK Rubicon Unlimited Does the guage attach to the hose so you know the lbs while you are airing up your tire? Thanks, Answer this question

A: Hello Cale, Yes, this gauge is attached to the house. It will display the PSI when filling a tire. Thank you.

Answered by RK on 10/02/2015


For 60 years Smittybilt has been fabricating aftermarket parts and today their products include Jeep tops, bumpers, lighting, winches and trail gear. Off-roaders count on the company's innovative parts like the original nerf bar side steps to equip their Jeeps for the trail and day-to-day driving. Pairing affordability without compromising quality is the hallmark of Smittybilt and the manufacturer's reputation carries over to products like its Overlander Series of tents, Adventure Boxes and SEMA award-winning magnetic trail skins for Jeeps. Smittybilt offers over 2,000 interior and exterior parts and accessories for 4x4s with multiple capabilities for jeepers of all levels. Shop Smittybilt Now