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Mechman Alternators

2019> GM truck vehicles /// stretch belt(no tensioner) vehicles


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Needing to collect more data on these modern vehicles.  If you have one or know of someone that does, please post or email me. 

 

As usual, other brands "say 14-18 applications fit" so they can sell you something and take your money. We prefer to provide a product that will work as much as factory as possible. The fact is, the stretch belt applications do not provide the correct tension for 200+ amp alternators, especially not 400's. 

 

We have a solution as we have a few in the field with our tensioner kit, but we're trying to establish a database of vehicles it will fit on. 

 

Main vehicles requested are:

2019> Silverado / Sierra 1500, 2500 3500  with 5.3, 6.0, 6.2 and 6.6 Diesel

2019> Tahoe /  Suburban / Yukon / Escalade with same engines as above. 

 

The area in GREEN is where there are supposed to be a spring tensioner and idler pulley.  We're finding some models have threads and some do not. 

 

Any help is certainly appreciated!

 

2018upGMtruckNOtensioner.jpg

 

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  • 2 years later...

I am late to the party but I have a 2023 Silverado RST with the 5.3l and it does not have the tensioner pulley and I never noticed it. I was planning to re-use my 370A alternator from my 2014 silverado 1500 5.3l but I guess I can't now. Thanks GM for the shaft haha. What is this adapter kit you speak of?

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