Serpentine Belt Size

[Pstyckiewicz]

I have been searching for the correct size serpentine belt. The belt on the truck has no numbers on it to reference and internet search has left me with multiple sizes.
-2007 M1152A1 SN:252865
-6.5 turbo
- AM General A/C
-200AMP generator
Attached is a picture of the a/c compressor. All my searches have sizes for Red Dot a/c, I believe the compressor I have is AM General brand?
Any info would be helpful.

Thanks,

 

[Coug]

The reason Red Dot aircon belts show up in searches a lot is because they are different than the stock belt.

If you have a truck with factory aircon, then it should take the belt in the parts book.

 

[Retiredwarhorses]

What dictates The correct belt is what pulley your running on your generator, got nothing to do with your AC compressor cuz all ECV’s have that compressor.

 

[Pstyckiewicz]

Thank you!

 

[Pstyckiewicz]

Got a belt 12469149-3, 112" SN#s 196901&UP 01-488-5606. From MacMotors. Put it on yesterday…. Fail. The thing falls of after being on for 30 seconds. Tried multiple times and all fall off within 30 seconds. Put the old belt back on and dosnt fall off. My old belt seems to be higher quality with a gatorback style ribs. The new one has small ribs. Any suggestions? Wrong belt? That’s the one Mac Motors said I need. Also the reason i wanted to change the old one because it squeaks. All the Pullys appear to be in line and no play. Attached is the new one.

 

[Pstyckiewicz]

Also noticed that MacMotors has the belt listed at 112”. When cross referencing it via part number, it should be 114”?

 

[Retiredwarhorses]

Got a belt 12469149-3, 112" SN#s 196901&UP 01-488-5606. From MacMotors. Put it on yesterday…. Fail. The thing falls of after being on for 30 seconds. Tried multiple times and all fall off within 30 seconds. Put the old belt back on and dosnt fall off. My old belt seems to be higher quality with a gatorback style ribs. The new one has small ribs. Any suggestions? Wrong belt? That’s the one Mac Motors said I need. Also the reason i wanted to change the old one because it squeaks. All the Pullys appear to be in line and no play. Attached is the new one.

post A pic of you generator…
check for a broken tensioner

 

[Pstyckiewicz]

Attached is a picture of the generator. The tensioner appears to have good spring and the pulley is not loose.

 

[Retiredwarhorses]

Attached is a picture of the generator. The tensioner appears to have good spring and the pulley is not loose.

where is the 3/8-16x1in bolt that holds the bracket onto the generator?

 

[Pstyckiewicz]

Old picture I have on my phone. But When I get home I’m going to confirm it’s there.

 

[Autonomy_Lost]

where is the 3/8-16x1in bolt that holds the bracket onto the generator?

This. Also, you should clean up your wiring before you have a fire.

 

[Pstyckiewicz]

Haha the wire was cut when I got it. The yellow wire nut is temporary just to get it up running.