I put a GPD AC compressor from Rock Auto in my Civic a couple years ago and it's still going strong. You will need to buy or borrow a vacuum pump and a AC manifold to evacuate the air and then fill the system afterwards.
Best AC compressor for Honda Civic
I had one for seven years and 80k miles and the only problem I had was the A/C compressor. It was two years out of warranty and Honda went 50/50 with me on it. I drove the piss out of it, multiple trips to the redline every day, etc., and it was flawless mechanically and never burned oil or made any unhappy noises.
This happened to me with a 2003 Civic in 2007. It was like a $1700 job back then, but Honda went 50/50 on the parts/labor after I wrote in with a sob story, told them I had a Honda lawnmower, etc - so I had to pay $650.
I (attempted to) refurbish my old civic's AC system by installing a new denso compressor, condenser/drier, and the line that had leaked from rockauto. It passed an overnight vacuum test with flying colors, and to get a second set of eyes on my work (and pay back a local mechanic who helped me figure out where the leak was for free) I took it to a shop to get the freon charged. Passed the shop's vacuum test as well and they recharged the system - but the new compresser's clutch would not engage. He found that as soon as the compressor attempted to engage, it would blow the fuse. He said my new compressor's clutch or coil is defective and that diagnostics are pretty much done - replace the compressor and try again.
I just took my 2019 Civic in for AC not working AGAIN. 3rd time since I’ve owned the car. Had the compressor replaced early on, now it needs replacing again and the other things mentioned in the thread. They told me it would be $3,200. I said no thank you, I won’t be doing that service today. The agent told me he would contact Honda Corporate and they likely would cover 1/2 the cost for me. I’m thinking of holding out and seeing if a class action is really happening. Seems ridiculous to replace AC 3 times in 5 years.
Took my 2017 Hatchback in two weeks ago, they replaced the compressor under warranty. AC lasted a week before blowing hot air again. Brought it back, now they say the evaporator needs to be replaced for $2100.
In my situation, at 3 years and 33k miles my AC compressor when out with a leak (very well known issue). It was not covered by the 3 year 30k warranty and Honda quoted me $3k+ to fix. I said no and went to a third-party repair place that fixed it for $1,700.
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