15093928 High Output Alternator 300A 14 V Fit for 2007-2014 Chevy Silverado 1500 2500HD 3500HD for GMC Yukon XL 2007-2011 for Chevy C K R 2007-2011 for Hummer H2 2008 2009 15857608

Well as is goes the ole saying dnt say anything about it cuz its workn great ! This is a 300watt alt, n I run a lot of stero equipment n other electronics n my truck n this alt even under a heavy load doesnt seem like its struggling to keep up, i also run only the optima yellow top 34/78 battery n its made for jus this exact thing a lot of sudden loads being put on it n my lights no longer dim when the beat drops, n the a/c is on n the dual electric fans kick into high there’s no lag, u dnt hear the motor idling down when the demand for power is constant it doesn’t make that high pitch noise almost like a high pitch kinda squillinv noise that the other 300watt alt did when the power was b demanded by the amps n in my system I'm running 8 amps, n two of them r 1500watts each so needless to say it’ll get ur attention when i want too ! All n all though im happy with it so far I’ve only had it in the truck a couple of weeks so well we will c what the longevity of it is or if I halfta have another that will handle the loads that r put on it

Works, but definately not a 300 amp alternator. Won't keep up with my 1000 watt sub amp. Save your money and get a known brand like Power Master if your running any serious car audio.

Is ok not as advertised mine came with a sound like a screeching noise but it has worked so far will change soon tho that sound bothers me.