A-PremiumAlternator Compatible with Chevy Silverado 1500, Tahoe, Suburban & GMC Sierra 1500, Yukon & Cadillac Escalade & Hummer H2, 12V 160A CW 6-Groove Pulley, Replace# 15093928 15857608

I've had this alternator in my truck for about a week or so now and it's been working just great. Alternators are the sort of things that tend to be good up until they have a failure, so I can't quite speak to the longevity of the part, but the castings and such all seemed really good. Oh, a note for people installing these in GMC vehicles after 2007. Measuring the voltage at first threw me because it was putting out 15v. I found out that the ECM in GM vehicles has some smart battery charging and that it will charge at 15v depending on certain conditions, such as your battery being really low voltage and also when it is very cold out. It's the winter when I write this review. This is to compensate for the charging characteristics of lead acid batteries and, at the temperature the vehicle was at when I measured, this voltage was the correct charge voltage.So yes, everything seems good and my truck is charging like it should. The voltage is nice and stable and measuring with an oscilloscope showed a smooth waveform. I hope it lasts, but since I did the swap myself I have the original alternator and plan to rebuild it to have on hand. (You can buy kit's for fairly cheap, though I bought the new alt because I wasn't sure if it was diode failure or regulator failure on my old alt.)

It failed to charge properly and showed issues within a short period. Installation was straightforward, but it didn’t perform reliably.

Fit into mounting locations BUT socket for regulator wires is clocked wrong for my 10 Yukon. I made it work and charges to 13.6 volts quickly.

This afternoon to quit working and it's discharging is there a refund for this I haven't received one

Works fine

I brought this alternator and installed it myself it wind up not working, I took the car to a mechanic they put on brand new alternator on it and that one worked. I returned it for a refund with no problems.

Great alternator for my 07 Chevy Silverado 1500works great easy to install!

Part of the alternator was damaged I don't think during shipping I'm going to see if it works

Good replacement alternator at reasonable price. Would recommend as it does the job as good as an OEM.