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Inflate your tires with this portable air compressor that runs off your vehicle's battery. Includes a 150 psi pressure release valve with in-line pressure gauge for safe and accurate inflation, thermal overload protector, and 50A circuit breaker.
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This works relatively well. My main complaint is that the 12v power cord is not long enough. My truck is a “Crew cab” with an 8ft box and when the power is hooked directly to my battery as the manual instructs, I can’t get the inflator close enough to my rear tires so that I can reach the power switch. And there is no way it is going to reach the Air Bag inflation points below the rear bumper. I ended up cutting the power cable and adding an extension soldering in some Anderson connectors I had left over from a solar project. Probably voided the warranty but at least I can use it now.
Has been working great. It does get very hot for long term use and not sure if that is normal or not so I do let it run for long periods of time. Would be curious if getting hot is normal.
As usual customer service is above and beyond!
The 5cfm model was out of stock when I ordered.
They shot me an email presenting other options and asked if I'd like to change my order or wait for restock.
Glad I chose to wait.
Not sure how they knew the color of my car though. Light is reflecting weird. In person the colors are nearly identical. Hah hah!
This is an excellent inflator, but I have one complaint. The power cord is too short. The instructions state that I need to use the inflator with the engine running. The only way I can do this is to disconnect the trailer from the truck, and place the truck VERY close to the tongue of the trailer. Then, the cord and air hose are just long enough to inflate my trailer tires. And my trailer is only 26’ long! Imagine using this on a “normal-sized” travel trailer.
Having a little compressor to inflate tires is a nice tool, but I wanted one that had enough flow to blow out camper water lines should that become necessary in cold weather. Having used it for both purposes, I am impressed with its versatility.
This compressor is very well built, but heavy. It does have a duty cycle which needs to be observed as it will get hot. Lastly, I added a pressure regulator which it does not come with.
James
1/12/2023
One year later, my opinion has not changed. I do not use it regularly, but always carry it on camping trips. Its one of those things that you do not need until you need it.
I have a 2018 Ram 2500HD and factory rear tire pressure is 80psi, I used this Bulldog Winch compressor to air up the rear tires from 47psi back to 80psi after a trip to the beach.
The compressor body itself seems solid and well built, the blue finish looks great also. All accessories were included as advertised, and it came with a handy carrying bag. After exiting the beach, I had both rear tires aired back up to 80psi and was back on the road in about 10 minutes.
There was one thing that prevented me from giving this item 5 Stars. The compressor includes a pressure gauge with a pressure release button for deflation, which is a great feature. However when inflating my rear tires to 80psi there was air coming out around the pressure release button on the pressure gauge. I would think there should only be air coming out there when I push the button in.
Other than that (it still only took less than 10 minutes to air up both tires) I would recommend this compressor to anyone with a truck that has high psi tires, my wife’s cigarette lighter plug powered compressor for her car would have taken forever to get to 80psi if it is even capable of it.
The reason I bought a Bulldog Winch 41000 FMJR Air Compressor, I've had bad experiences with cheap aftermarket air compressors, they're loud and it takes forever to fill up one tire before overheating and going broke. Due to the pandemic I was patiently waiting for it, even though I was scheduled to be shipped by Feb 7th. But I never really panic about its delay. I've read your previous reviews and I knew that I was in good hands. I've got my order this afternoon, and I'm excited to put it to good use. Ps. My package from you, it arrived earlier than other purchases that I've made online, and still waiting for them. Thank you for your follow up, before and after the transaction. Keep up the good job and track record.
This is a great compressor. Etrailer is 5 stars, the only reason I give the compressor a 4 is the reach is a little limited, I have a 40’ 5th wheel and it is a stretch to air all my tires. The compressor works great, airs up tires to 115 quickly
This has served me well so far. I've only used it to adjust the pressure in my campers tires over the year I've had it, but its been great for that so far. I have confidence it would full fill a tire if I ever needed it to. It does get rather warm, but for this style compressor that is to be expected.
Once again, etrailer did an outstanding job. Probably my 5th or 6th order from them and every time they shipped it out that day, gave me tracking info and let me know when it was delivered. Great customer service! This is my go to for anything trailer related that I may need. This compressor worked great as well, got a little warm after 6 tires to 80PSI but very happy with it.
I was looking for a air compressor for the travel trailer. I had a tire that was at 40 psi and after watching the video on how easy it was to set up, I hooked the compressor up to the tire. It only took about 40 seconds or less to fill the tire to 50 psi. It was also very easy to connect securely to the value stem.
Before having to use my new Bulldog Winch Compressor on the side of the road I put it to the test. I deflated one of my truck tires and pumped it back up to 75 PSI. The pump never missed a stroke. I did not time how long it took to inflate the tire, but it was not very long. I bought this to maintain my truck and fithwheel tires while on the road. Hopefully I will never have to use on the side of the road.
So this should help with some decision making.
Used on a Dodge 3500, 32 inch tires, labeled pressure for front is 60lbs backs are 80lbs.
This pump works great! Lowered the tire pressure to 20lbs as though I was going out on the sand, took 5:40 to inflate back to 80lbs.
Two down sides: first it gets pretty hot after only one tire. Second the bag is garbage, very lightweight and it came with one of the two zippers broken.
Haven’t used the compressor yet, but excellent customer service! John emailed me to say delivery would be a couple days late. Couldn’t have been nicer! I feel I purchased from the right company. Etrailer is the place to go!
One of the best high powered compressors I have ever used. The duty cycle and high cfm make for a quick process. It filled 2 37" tires and 2 40" tires from 10psi to 40psi in a short amount of time. Perfect for offroading!
This compressor works very well. It has know problem airing up a truck tire .The only problem I have with it is that it gets very hot after running for a while. I would buy it again.
Bought it for our dually & 5th wheel. Works great
This compressor is everything e- trailer advertised it as. It's perfect for "essentials" in the camper. Shipping, as usual was quick, all info accurate. Thanks e-trailer!
ETRAILER.COM has really been great to work with. Really needed a good pump to fill my camper tires, especially when on the road, & maybe 120 wasn't available. This product should fill that void
I have not used it yet, and box was missing a couple items BUT Drew from etrailer took care of the problem immediately! The missing parts are in the mail! Great service as usual!
Works great. One issue is it isn't set up to allow it to work with dual wheels. Have to make some kind of adapter.
Product arrived on time and good condition. Compressor works fine. Runs very hot at pressures > 100 psi. Very poorly made fabric carry case.
One year into the purchase and no regrets. Works just like we opened the box today. Wouldn't travel with out one!
Too heavy takes too long to fill a tire pressure is poor
Bought it to air up my Ford E450 Class C motorhome tires to 80 PSI. Keeps them topped off nicely!
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Michael
9/2/2025
This compressor with my home made extended power cable has been working great. After a year of use, the last time I pulled it out to use it the battery camp for the positive cable broke, but all I did was buy a cheap set of jumper cables and solder those clamps on. I know nothing is “one size fits all” so I was fine with making modifications when this was bought a year ago. The clamp that broke was one of the original ones that came with the compressor, they were adequate but not exactly heavy duty.