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140 amp alternator 6.5 diesel

1995Chevy3500

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1995Chevy3500 Enthusiast

1995Chevy3500

Posted
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When I bought my truck, I had what was considered and someone said a Gold series lifetime warranty on my alternator on my 95 chevy 6.5 3500hd truck. Alternator went out a month later, and I got a free replacement(took a few days to get here from the bakersfield big warehouse)...well on a trip to Utah, it went out again (which is 2 months later)and they had no clue what a gold series was or anything so we had to take what they had, which I thought was a lower model/brand or amps....well, my alternator went out last week and so I got it replaced, and they gave me a 105 amp alternator.....which is probalby to weak and small......its been working, but for how how long?

 

HERES the question, they said they had a 140amp alternator in stock and it was 2x the money (not a big deal if it last 6 months to a year at a time)...will this 140 amp cause any problems to my wiring harness,over amprage or anything? Im sure its got a self regulator and all that, just wanted to check first before I buy/install it. My 3500hd is actually a car hauler and has a winch on the back that gets used 5 x a week FOR SURE....thanks guys...

 

Clint

silverado3500 Enthusiast

silverado3500

Posted
Posted

The 140 amp should be fine. I would check your batteries though. Perhaps they are a little weak, and putting more load on the alternator than they should? Is your winch wired directly to the batteries?

Worktruck Enthusiast

Worktruck

Posted
Posted

I would deffinately look for the cause of the alt failures first. I put a 170 amp alt on my Sierra. Got it from National Quick Start. Price was very good. Think it cost around $225 including shipping. Great place to do business with too.

silverado3500 Enthusiast

silverado3500

Posted
Posted

Doesn't the 6.5 computer pull the tach reading from the alternator? I looked through National quick start's site, and didn't see any mention of it. Just something that might be worth asking them about before you order from them.

1995Chevy3500 Enthusiast

1995Chevy3500

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Posted
Doesn't the 6.5 computer pull the tach reading from the alternator?  I looked through National quick start's site, and didn't see any mention of it.  Just something that might be worth asking them about before you order from them.

 

 

 

 

 

I believe the tach does, one of the times my alt went out I did notice the tach didnt work.

 

The batteries are new as of Nov of 05. They have aprox 960-1030 cold cranking amps, I cant remember, but it is up there near the 1 thousand mark. That doesnt mean the batteries arent weak still,but they are replaced...I think im gonna do a trade in, and get the 140 amp, I believe the cost was around 225, but my trade in is worth 100, since its under warranty and all. Thanks guys for the help, I think im gonna go with the 140....unless they will refund me cash back and get a 170, lol...I doubt it though. Thanks

 

Clint

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