I searched but want to be sure. I went to Autozone to get a gatorback serpentine belt for my truck but didn't know there were several choices including alternator amp. size. Could one of you smart folks help me out? If you could give me the part number I sure would appreciate the help!

Thanks...:help:

Anyone?

you should have a 145 amp alternator and a vacuum pump. Based on napa site your part number will be 4061195 . Dimensions are 6 ribs by 119.5". Dimensions for a 105 amp alt is 6 ribs by 118.75". Just take a looksie at your alternator to see what it's got.

you should have a 145 amp alternator and a vacuum pump. Based on napa site your part number will be 4061195 . Dimensions are 6 ribs by 119.5". Dimensions for a 105 amp alt is 6 ribs by 118.75". Just take a looksie at your alternator to see what it's got.

Thank you very much Duramax, I really appreciate your help :thankyou2

Thank you very much Duramax, I really appreciate your help :thankyou2

if you wanna send me your vin i can look it up and see what alternator you have.

I thought these Duramax's did NOT have a vacuum pump. I am pretty sure mine does not. I had this same question when I got the Gatorback belt.

The gatorback number I have, (I am looking at the package) is: 4061175 (6PK2985). I got this at autozone.

I have a single alternator 105 amp.


Good luck

I thought these Duramax's did NOT have a vacuum pump. I am pretty sure mine does not. I had this same question when I got the Gatorback belt.

The gatorback number I have, (I am looking at the package) is: 4061175 (6PK2985). I got this at autozone.

I have a single alternator 105 amp.


Good luck

Thanks to both of you Duramax and kylant! My alternator has 105A stamped on the side, I went to Autozone and the guy said they have 3 sizes for our trucks, 117.? 118.?and 119.? can't remember the fraction on them. I told him i'd get on here again and look for another number and kylant had already posted it on here. I will give him the number you posted and hopefully that will take care of it. I have 33,000 on my truck but am getting the "chirping' belt noise so gonna replace it. Again, thanks to both of you!

I thought these Duramax's did NOT have a vacuum pump. I am pretty sure mine does not. I had this same question when I got the Gatorback belt.

The gatorback number I have, (I am looking at the package) is: 4061175 (6PK2985). I got this at autozone.

I have a single alternator 105 amp.


Good luck

i just went out and looked at mine and sure enough i don't have a vacuum pump. I know all the LB7's i work on do but never really payed attention to the lly's. I guess you will just have to pop the hood and look at your accessories and see if you have a pump.

looking over my build sheet i have a 105 amp alternator shown. I'm willing to bet "NOW" that you have a 105 amp alternator without vacuum pump.

i just went out and looked at mine and sure enough i don't have a vacuum pump. I know all the LB7's i work on do but never really payed attention to the lly's. I guess you will just have to pop the hood and look at your accessories and see if you have a pump.

looking over my build sheet i have a 105 amp alternator shown. I'm willing to bet "NOW" that you have a 105 amp alternator without vacuum pump.

I believe your right, gonna try kylant's part # at autozone tomorrow, will let everyone know when it comes in if it's the right part.

Here is the part numbers from goodyear website:

Replacement Products for CHEVROLET SILVERADO PICKUP - 2005 6.6L V 8 DURAMAX DIESEL Eng Part No. Applications Usage Footnote Metric Part No. Replace By Poly-V Belts 4061175 Poly-V, w/o VP (105A Alt) 6PK2985 4061187 Poly-V, w/VP (105A Alt) 6PK3015 4061187 Poly-V, w/o VP (145A Alt) 6PK3015 4061195 Poly-V, w/VP (145A Alt) 6PK3035 Tensioners 49278 Tensioner Idler/Tens Pulley 49021 Tensioner Pulley

good luck.
mine was the correct one and it got rid of that dam chirping noise

Thanks kylant, I gave autozone the part number you posted the belt will be in tomorrow, i'll let you know how it goes.

[quote=kylant;1294955;]I thought these Duramax's did NOT have a vacuum pump. I am pretty sure mine does not. I had this same question when I got the Gatorback belt.

The gatorback number I have, (I am looking at the package) is: 4061175 (6PK2985). I got this at autozone.

I have a single alternator 105 amp.


Installed my gatorback a little while ago. This is the right part number for my truck. Thanks again to Duramax and kylant!:cool2:

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