Order New A/C compressor & 3 in a row have the wrong wiring

[PamPoovey]

20 hours ago, adamzan said:

I'm seriously considering rebuilding mine. I found a shaft seal kit, and I'm sure the bearings can be sourced by my local bearing house. https://donbrownbusparts.com/products/compressor-shaft-seal-kit-dkv14c-d-mt2060

 

Found a spare compressor in a box of old parts at my grandmother's house.

 

Too wiped to go back out now, I'll snap a pic of the Xterra compressor plug tomorrow.

Spare compressor? How does that happen? lol

 

No worries, when you go the energy and time i'll be around. 

 

I am still waiting to hear back from both places. 

[adamzan]

On 6/13/2024 at 5:16 PM, PamPoovey said:

Spare compressor? How does that happen? lol

 

No worries, when you go the energy and time i'll be around. 

 

I am still waiting to hear back from both places. 

Lol. I've had a few parts trucks! Guess I kept some things.

 

I'll go out to the X now.

[PamPoovey]

13 hours ago, adamzan said:

Lol. I've had a few parts trucks! Guess I kept some things.

 

I'll go out to the X now.

Lol 

[Slartibartfast]

It's amazing how much room a parts car takes up once it's taken apart.

[PamPoovey]

18 hours ago, Slartibartfast said:

It's amazing how much room a parts car takes up once it's taken apart.

That's why a replacement like a a/c condenser or starter is really nice lmao

[level9]

I went ahead and ordered the Four Seasons 58440 compressor since adding A/C back onto my car was on the todo list.

Sure enough it has the wrong connector. Looks like it's for an R50.

 

It's a single wire and there is an insert explaining why it's a single wire. The old compressors (rotary vane style) were prone to overheating and were 2 wire with the internal temperature switch on the second wire/connector and the newer compressors (piston swash style) don't require this.

Also included is a package of butt splice connectors with writing on the package indicating to use these to splice into the OEM wiring since the connectors may not match.

So, there you go! It should work fine.

 

I probably won't get to this for a couple more months but I plan to just go ahead and 'upgrade' my OEM compressor wiring by using a pigtail I'll cut off an R50 the next time I'm at the junk yard. I no longer have the original compressor; otherwise I'd just swap the connector over on the compressor side.

[PamPoovey]

2 hours ago, level9 said:

I went ahead and ordered the Four Seasons 58440 compressor since adding A/C back onto my car was on the todo list.

Sure enough it has the wrong connector. Looks like it's for an R50.

 

It's a single wire and there is an insert explaining why it's a single wire. The old compressors (rotary vane style) were prone to overheating and were 2 wire with the internal temperature switch on the second wire/connector and the newer compressors (piston swash style) don't require this.

Also included is a package of butt splice connectors with writing on the package indicating to use these to splice into the OEM wiring since the connectors may not match.

So, there you go! It should work fine.

 

I probably won't get to this for a couple more months but I plan to just go ahead and 'upgrade' my OEM compressor wiring by using a pigtail I'll cut off an R50 the next time I'm at the junk yard. I no longer have the original compressor; otherwise I'd just swap the connector over on the compressor side.

Wow!!!! Thank you for sharing! When I had ordered the Four Seasons, no paperwork was included, just a sticker talking about the oil. 

 

Thank you so very much for helping me out! This does make things easier for me!

 

[adamzan]

On 6/17/2024 at 2:56 PM, level9 said:

I went ahead and ordered the Four Seasons 58440 compressor since adding A/C back onto my car was on the todo list.

Sure enough it has the wrong connector. Looks like it's for an R50.

 

It's a single wire and there is an insert explaining why it's a single wire. The old compressors (rotary vane style) were prone to overheating and were 2 wire with the internal temperature switch on the second wire/connector and the newer compressors (piston swash style) don't require this.

Also included is a package of butt splice connectors with writing on the package indicating to use these to splice into the OEM wiring since the connectors may not match.

So, there you go! It should work fine.

 

I probably won't get to this for a couple more months but I plan to just go ahead and 'upgrade' my OEM compressor wiring by using a pigtail I'll cut off an R50 the next time I'm at the junk yard. I no longer have the original compressor; otherwise I'd just swap the connector over on the compressor side.

I love how their solution is to hack up the car's wiring, although I guess you can just use the old compressor's pigtail. All to save them 10 cents on the production line lol.

 

I didn't know they changed from rotary vane to piston style. Maybe we'll get better idle speed A/C performance then.

I just ordered a four seasons one for mine and a valeo for my Xterra (expensive summer!)

 

Here's a good write up on the differences:

 

https://www.toyota-industries.com/products/relation/compressor_kind_1/index.html

Edited June 20, 2024 by adamzan

[PamPoovey]

3 hours ago, adamzan said:

I love how their solution is to hack up the car's wiring, although I guess you can just use the old compressor's pigtail. All to save them 10 cents on the production line lol.

 

I didn't know they changed from rotary vane to piston style. Maybe we'll get better idle speed A/C performance then.

I just ordered a four seasons one for mine and a valeo for my Xterra (expensive summer!)

 

Here's a good write up on the differences:

 

https://www.toyota-industries.com/products/relation/compressor_kind_1/index.html

Mind blown on "you cut the wire" 

 

thanks for the write up, it is well put together, thank you!

 

I have also ordered a Four Seasons, again. I hope it comes with the said paperwork since the first time, it sure did not! I would love to know if yours comes with the paperwork as well. 

[adamzan]

Being in Canada it won't be here till late next week so whoever is first, post up lol.

[PamPoovey]

12 hours ago, adamzan said:

Being in Canada it won't be here till late next week so whoever is first, post up lol.

You're on! FedEX says it has arrived in town, but won't deliver til Monday

[PamPoovey]

I ordered my 6th compressor. It lacked the notice/ paperwork mentioned by level9 but it did have two connectors in a sealed package. 

 

Now, just trying to figure out why the compresor clutch to kick on. I tried replacing the light on the dashboard switch a few months back. I am going  to double check things are properly plugged in -once my sonngets back with it from work. Lol

[level9]

Finally getting around to dealing with this myself.

With a Four Seasons 58440 compressor - I cut off the connector and then also cut off the OEM connector as it's now useless since nobody? makes the right connector for this anymore. I wired on new waterproof automotive grade connectors I bought off amazon.
Pulled vacuum, charged it up and everything is working fine.

Since the system was already empty and I had already done the e-fan conversion (Flex-A-Lite 410 w/ the variable speed controller) I also took the opportunity to replace the binary switch (compressor pressure high/low cutoff) that threads into the receiver/dryer with a trinary switch (Vintage Air 11086-VUS) and then hooked that up to the A/C signal on the e-fan. The specs for high/low cutoff on the Vintage Air were within range for the OEM specs and it threaded right in. This means my e-fan only turns on at a certain pressure instead of always-on with A/C and saves some more MPG. Very easy to wire in and a worthwhile upgrade if you have an e-fan.
 

[adamzan]

That's great info! Thanks for posting. I haven't done e-fans yet but have had a set laying around forever. But the clutch fan just keeps going. Xterra comp works great but haven't dealt with the pathy because I am replacing the radiator support. Which guess what, not available AT ALL in Canada, and the eBay store I ordered it from will no longer ship to Canada.

Edited July 1 by adamzan

[level9]

On 7/1/2025 at 4:09 PM, adamzan said:

That's great info! Thanks for posting. I haven't done e-fans yet but have had a set laying around forever. But the clutch fan just keeps going. Xterra comp works great but haven't dealt with the pathy because I am replacing the radiator support. Which guess what, not available AT ALL in Canada, and the eBay store I ordered it from will no longer ship to Canada.

If you're looking for new - try amayama.com (direct from Japan). A longer wait but parts are usually half the price or less, at least compared to here in the States.
If amayama doesn't have it, try nengun.com.
And to get the P/Ns if you don't have them, megazip.net.
If used - Terrano I / R3m parts are still around and should be the same for this. I'll guess a Hardbody (D21 / Big-M) is likely also the same.
Parts are still out there... you just have to find them... somewhere in the world 

Edited July 3 by level9
correct overseas model #s

[adamzan]

fskc, that's awesome, Found one for 1994 terrano, it's gotta be the same. I was looking at aftermarket ones actually. It's 350CAD for oem, that might be worth it.

[tmoore4512]

I am pretty certain that it was mentioned, I believe by Level9 or maybe the incredible Adamzan...

 

But I just did this, (seriously, today about three hours ago) and it is the second time I have.

 

New compressor did not have the same electrical connection, so grafted in the OEM. 

 

This new one I just put on is a UAC, which replaced a Four Seasons. The OEM and the Four Seasons had the sensor in the back of the compressor; the UAC does not.

 

Anyway, it works like a champ. 

 

Finding the parts is getting harder and harder for these relics, unfortunately. 

 

Like Adam said, I was going to just rebuild the Four Seasons, and still might, because that shaft seal is what has let go on the last two....and the price of the compressor keeps going up.

 

Now I am just rambling.

[tmoore4512]

On 7/1/2025 at 12:28 PM, level9 said:

Since the system was already empty and I had already done the e-fan conversion (Flex-A-Lite 410 w/ the variable speed controller) I also took the opportunity to replace the binary switch (compressor pressure high/low cutoff) that threads into the receiver/dryer with a trinary switch (Vintage Air 11086-VUS) and then hooked that up to the A/C signal on the e-fan. The specs for high/low cutoff on the Vintage Air were within range for the OEM specs and it threaded right in. This means my e-fan only turns on at a certain pressure instead of always-on with A/C and saves some more MPG. Very easy to wire in and a worthwhile upgrade if you have an e-fan.

 

Well, this is interesting. I did not even think about this dude, nice!

For now, my E-fan comes on as you described... And the system is holding pressure, so I am not going to pull that sensor to swap in that little guy for the optimal efficiency we all need out of these weak little 153 hp monsters, BUT.... Now I know!

 

Thanks!

[adamzan]

On 7/25/2025 at 1:04 AM, tmoore4512 said:

 

Finding the parts is getting harder and harder for these relics, unfortunately. 

 

It was always hard up here, most part stores are not like the ones in the states, like O'Reilly or whatever where you can still get a fuel pump for your 72 cutlass and it'll be in stock. When I bought my first wd21 in 2005, even things like brake pads were always "special order". Now that I have to rebuild the front end of mine after a collision (lady ran off the road and into my parked wd21), it has been really hard. It'll be over a year now and I still don't have all the parts I need.

 

Rockauto is a godsend for us Canadians. For example the local store told me the fan clutch for my X is discontinued (it's not, actually), found the same exact brand on RA, for 40% less than the store had a list price, even after shipping.

 

As for the A/C Comp, I'm still miffed they want you to hack up the truck's wiring harness to fit the compressor. I know it's just an old truck, but still, that stuff annoys me.

Edited August 4 by adamzan

[tmoore4512]

Agreed dude. It is wild, but it is equally difficult to locate silly parts. I am probably about to try and fit some VG33 Frontier headers on my WD21 but cannot find exhaust manifold studs. Gotta love it.

[adamzan]

Are you running a 3.3 now? They're just M10 studs, or M8 on the VG30. I opted to use bolts when I put the headers on.