New Alternator

ja_cain · Feb 2, 2020

Need a new alternator asap. Don't have time to order or get my old one rewound. What's the best option for parts store alternators? My just go with an Advance and have my old one rewound as a backup. Thanks in advance for any help!

Justin

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ja_cain · Feb 2, 2020

Went with a cheap Advance alternator. $125 after coupon. Should be good for a few months Lol! Good thing Is I found out my bottom alternator isn't working, so I'll probably upgrade that one.

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Magnum PD · Feb 2, 2020

I had to swap out my alternator that I just put on last month. 10 volts.

I was driving around with 10 volts. Was afraid it was gonna die. Got down to 9 something volts and the radio was turning off. “Just make it back to the farm baby”

ja_cain · Feb 2, 2020

Magnum PD said:
I had to swap out my alternator that I just put on last month. 10 volts. I was driving around with 10 volts. Was afraid it was gonna die. Got down to 9 something volts and the radio was turning off. “Just make it back to the farm baby”

That's how it was this morning! It was down around 11.8 and dropping. I got all the way to church to do setup and had to drive back, because I didn't want to get stranded. Lol! I've been wondering about that other alternator too. Now I know it's bad too! Lol!

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Lt.Dan · Feb 2, 2020

I know I've been needing an alternator for a while. I had my voltage regulator go bad last year, and my gauge was pegged, making north of 18v. I was pretty scared on the drive home... but I was cheap and just bought a regulator. So far so good, but it's on my list to replace for just precautionary reasons.

mandkole · Feb 2, 2020

Magnum PD said:
I had to swap out my alternator that I just put on last month. 10 volts. I was driving around with 10 volts. Was afraid it was gonna die. Got down to 9 something volts and the radio was turning off. “Just make it back to the farm baby”

yep.. I was on the interstate when I literally saw the gauge go from good to not good. Had 6-8 miles before home.

psduser1 · Feb 2, 2020

ja_cain said:
Need a new alternator asap. Don't have time to order or get my old one rewound. What's the best option for parts store alternators? My just go with an Advance and have my old one rewound as a backup. Thanks in advance for any help!

Justin

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The nice thing about cheap chain store parts is the fact that they are everywhere, lol. Makes the warranty are least somewhat worthwhile!

dsberman94 · Feb 3, 2020

I’d keep an eye on your volts driving still Mine drops into the 10s sometimes when I’m driving and I got mine from one of the part stores. Depends on what’s running but amp for subwoofer, lights, and the fuel pump gets a pretty decent draw going. Ive been meaning to get a better one just don’t drive it enough for it to be on the top of the priority list. I’ve warrantied 2 for low bolts, their tester in store doesn’t show it getting low voltage but I argue with them that it does in the truck until they give me a new one anyway.

Magnum PD · Feb 3, 2020

Does it stay above 13.5 at all?

superpsd · Feb 3, 2020

On my 7.3 my alternator was only keeping batteries at 12.1-12.4 V depending on draw. So I bought a motorcraft unit from Amazon. Been working fine since.

dsberman94 · Feb 3, 2020

Magnum PD said:
Does it stay above 13.5 at all?

Yea. Hits 14 just cruising. But having the truck sit and not daily driving it wasn’t helping either.

ghohouston · Feb 3, 2020

One must keep in mind, you're running an i.d.m. and in turn the injectors as well. Everything is electronic even on these dinosaurs. My personal belief is these trucks need a but higher amperage alternator than what they were equipped with.

ja_cain · Feb 3, 2020

So far this one is running around 13.9 to 14.1 idling. I am going to probably have the bottom one rewound or go with one from these guys. A member on here texted me and said he's never had a problem with them on any 6.0 or 7.3's. Definitely spendy though.

https://www.nationsstarteralternato...eece-Neville-2-Year-Warranty-p/8307ln-230.htm

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ja_cain · Feb 3, 2020

psduser1 said:
The nice thing about cheap chain store parts is the fact that they are everywhere, lol. Makes the warranty are least somewhat worthwhile!

That was my thoughts exactly at least on one of them. The secondary will most likely be of higher quality and output.

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ja_cain · Feb 3, 2020

BTW, looks like this place isn't as dead as I thought it was. Lol!

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ruffneck7.3 · Feb 7, 2020

I put a mechman 240 amp alternator on a few months back, love it! Instantly charged up in the morning after starting, where the old one would take about 40 seconds or so.. so far recommend

OBS-Addiction97 · Feb 7, 2020

Dc power engineering makes a few different options for the 7.3

I went with the 190amp alt. With the larger case. No complaints.

Peroni · Feb 8, 2020

OBS-Addiction97 said:
Dc power engineering makes a few different options for the 7.3

I went with the 190amp alt. With the larger case. No complaints.

I've been running a 190amp DC Power alternator going on 10 years with no issues at all.

JCart · Feb 8, 2020

Leece-Neville 200 amp, was a spare ran it for years on red CCSB. Installed this fall replacing Tan truck stock one, works awesome notice charge difference immediately especially after cold start using glow plug system. Pricey yes but worth the cost in long run (I think), that and totally rebuildable. Also added cable leads to positive battery on passenger side and Neg lead to battery on drivers side, with #2 welding cable. Plus installed a 200 amp waterproof resettable breaker. Put on the best quality, highest output you can afford, being these engines are electronic stable power source is important I think.
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