: Please help A/c belt, aftermarket number????



snzuloz
04-07-11, 07:09 PM
Believe it or not the dealerships do not stock a belt for the a/c for the V. Go figure. Anyone know of the alternative belt (aftermarket-gates, goodyear etc) PLEASE HELP if you have any info it would be much appreciated. I matched up a Goodyear 4040372 (or 4pk0945) but not sure if this is equivalent??? Thanks

Me Wanna A V
04-07-11, 07:54 PM
That 4PK0945 crosses over to the following:

Gates: K040372

Dayco: 5040373

Goodyear: 4040372 (like you stated)

Is it safe to assume that you got 4PK0945 off the factory belt, if so the above numbers are good to go!!!!

Gary

snzuloz
04-07-11, 08:02 PM
Thanks but the belt that I listed is one I sourced, I cant find any listings for a compatible belt, the factory belt number is 19180340 (new number) old number on the belt was 12612516. Thanks

Me Wanna A V
04-07-11, 08:03 PM
Did you cut the belt to get if off? If so, get a tape measure and figure out what the total length is. We already know it's a 4 rib so now we gotta figure the total length.

snzuloz
04-07-11, 08:25 PM
Yes I cut it off, it measures 95.5 cm from what I can gather. Thanks for the assistance!

Me Wanna A V
04-07-11, 09:01 PM
O.K, 95.5 cm = 37.598 inches (thank you Google).

Dayco has # 5040375 with an overall length of 37.55 so maybe you can talk dirty to it while you try slipping it on. :o

Gates has # K040374SF The SF stands for "stretch fit" for applications without a tensioner - just like this application.

I would go to your nearest auto parts store with the above numbers and have them come up with something. So basically grab a bunch of 4 rib belts in the 37.5" - 38" range from them and return the ones that don't fit.

Let us know the outcome. Have fun!
Gary

cbloveday
04-07-11, 09:02 PM
I got an old one out of the garage. It was GM 12628027 WMA 6PK2155
I could not see the # on the new Napa belt on the car. If you take the cut belt in to a store like NAPA, they will figure it out.

Good luck.

Me Wanna A V
04-07-11, 09:12 PM
Curtis,

I think that's the main serpentine belt you are referring to.

We're trying to figure out the A/C compressor belt.

snzuloz
04-07-11, 09:17 PM
Thanks for the info, heading to the store now to see what I can find. I know the belt I have will not work, will post if I find a suitable replacement for any future reference. Better than ordering a belt out of the U.S. for sure!

cbloveday
04-07-11, 09:40 PM
Curtis,

I think that's the main serpentine belt you are referring to.

We're trying to figure out the A/C compressor belt.

Sorry, my bad.

snzuloz
04-07-11, 11:00 PM
Well dont take the number off the original belt as anything that should cross over (the 9pk0970 #) on it is wrong. From what I can gather the Dayco belt 5040375 should work fine 37.55 inches in length, factory is .01 cm or .05 inches longer than this one (37.60" or 95.5 cm's in length). Now the hassle of trying to find one around here, hopefully tomorrow! Thanks for the input!

Razorecko
04-07-11, 11:03 PM
Find out which one works and get back to us, I have a pully/belt thread going and would like to throw in this data on there for future reference

Me Wanna A V
04-07-11, 11:57 PM
Well dont take the number off the original belt as anything that should cross over (the 9pk0970 #) on it is wrong. From what I can gather the Dayco belt 5040375 should work fine 37.55 inches in length, factory is .01 cm or .05 inches longer than this one (37.60" or 95.5 cm's in length). Now the hassle of trying to find one around here, hopefully tomorrow! Thanks for the input!

Wait a minute now, if we take that 9PK0970 and look it up as a 4PK0970, it turns out to be a 38.2 inch belt with the part numbers as below:

Dayco # 5040382

Gates # K040382

Universal generic part # 382K4

Try the above size first before you give the Dayco 5040375 a shot.

snzuloz
04-08-11, 11:17 AM
Wait a minute now, if we take that 9PK0970 and look it up as a 4PK0970, it turns out to be a 38.2 inch belt with the part numbers as below:

Dayco # 5040382

Gates # K040382

Universal generic part # 382K4

Try the above size first before you give the Dayco 5040375 a shot.

Trust me I've tried this, the 4pk 0970 belt is way longer than the oem belt (doesn't make sense to me why that number is on the oem belt) must be why there is no cross reference belt listed anywhere as well. As mentioned the belt cut length is 95.5 cm's or 37.60 inches, the dayco belt 5040375 is 37.55 inches-thats splitting hairs in my books, I will try to get this resolved today and reply back, unless someone has a belt number besides factory that theyt know is the belt to use. Thanks

Domsz06
04-08-11, 02:02 PM
I just went to slowreilieys and they pulled it up on the screen and I put it on. I have the number at home and I'll look at it when I get back to the office Monday.

CTSV4now
04-08-11, 02:05 PM
With your location listed as "look way up", I doubt you even need A/C at all!

Domsz06
04-08-11, 02:21 PM
Belt I used was a Gates. part number K040378

http://i161.photobucket.com/albums/t216/domsz06/CTS-V/0c0f490b.jpg

snzuloz
04-08-11, 02:21 PM
With your location listed as "look way up", I doubt you even need A/C at all!

Theres a few days where its needed lol, all this effort to get a belt I'm tempted to leave it off!

snzuloz
04-08-11, 02:23 PM
Thanks Sean, Ill try that next... Unbelievable how hard something so simple should be, imagine selling cars and not having any parts for them?????

Domsz06
04-08-11, 02:24 PM
With your location listed as "look way up", I doubt you even need A/C at all!

oh in the summer (july and aug) he will still need it during the day. Esp if stop and go traffic!

Domsz06
04-08-11, 02:25 PM
Thanks Sean, Ill try that next... Unbelievable how hard something so simple should be, imagine selling cars and not having any parts for them?????

No problem. It's what I used and is still on the car. AC works great! I won't be cutting mine off next weekend when I put my pulley back on. Learned that the hard way lol

Me Wanna A V
04-08-11, 02:52 PM
Belt I used was a Gates. part number K040378

http://i161.photobucket.com/albums/t216/domsz06/CTS-V/0c0f490b.jpg
Thanks Dom, now we're making progress!!!

O.K

Gates K040378 = 962 mm in length which equals 37.874 inches

Dayco 5040378 = 960 mm in length which equals 37.795 inches

Goodyear 4040377 = 960mm listed with length of 37.750 inches

Dom acknowledged the Gates fits, the above are possible (?) "options".

Me Wanna A V
04-08-11, 03:32 PM
Since Dom has verified the Gates K040378 works without issue, that might be the best way to go.

The fact that the Gates is just a fraction longer than the others, makes it easier to take off again in the future without damaging it and therefore possibly re-using it.

Dom: Did you feel the Gates was the "perfect" size, or could it have been just a little more snug?

snzuloz
04-08-11, 04:12 PM
Picking up the gates belt as mentioned, thanks guys.

Me Wanna A V
04-23-11, 10:31 PM
UPDATE

I've just discovered some new info with links to click on below, but read on!

Here's the deal: The CTS-V does NOT have a tensioner for the A/C belt. Most belt manufacturers make special "Stretch Fit" belts for this kind of application (As I previously mentioned within this thread). Gates specifically states in the link below that using a standard belt (K040378 - like Dom used) will prematurely fail as it has no elasticity and causes stress during the install process. Does this mean the regular belt (K040378) won't work? Dom's got it on his car and so far so good. Time will only tell.

I've been sitting here at my computer for the last 3 hours cross referencing Gates to Dayco. Dayco to Gates. Napa to this. This to Napa. :cookoo: You get the idea and here's what I found.

The Gates "Stretch Fit" I listed earlier on (part # K040374SF) has an application for a 2007-2009 Dodge Nitro P/S belt. So, since I know Gates makes Napa belts, I started checking out Napa. On their site I found something not even Gates has listed on their page.

On the second link below (Napa) you'll see what I "believe" is the proper part number. It lists the 2010+ LS3 Camaro A/C belt (basically our motor minus blower) as a 25-040373SF (Gates K040373SF).

Now here's where it gets fun! Napa prices are taken from their website in my Zip code, so prices may vary.

25-040374 Dodge Nitro P/S $10.39 Length 38"

25-040373 Camaro 6.2L A/C $42.99 Length 37 7/8"

Why does an 1/8" cost an extra $32.60????????? (No Penis Jokes - Please!!!!!)

I sure as heck would try and get that Nitro belt on there and show them!!!!!!!

As a recap: Gates K040373SF (Napa 25-040373SF) is "Probably" the correct part number.

http://www.gates.com/stretchfit/assets/pdf/gates_micro-v_brochure.pdf

https://partimages.genpt.com/partimages/1206259.pdf

I hope this helps others, and if anyone tries any of the above part numbers, please reply with the outcome.

Gary

zinner
05-20-12, 06:42 PM
I can confirm Gates K040373SF works as a replacement AC pulley. It took me two people, on rotating the crank pulley and one using a flat head driver to guide it on to the AC pulley. I put it on the crank pulley, got under the car and guided it on the AC pulley from below. The 2nd person was up top rotating the crank clock wise. Once it was mostly on went clock and counter clock was to line it on both pulleys. I took the car for a spin and the AC got cold and no odd belt noises or ill side effects noted.

zinner
05-20-12, 07:44 PM
92328
Belts i used