[BlueOx1]

I'm looking at upgrading my alternator in my Excursion and was thinking of going with this Most Powerful USA Made Ford 1999-2007 F250, F350, F450, and F550 trucks and all 2000-2005 Ford Excursion SUV's with either the 7.3L or 6.0L V8 Powerstroke Diesel engines High Output Alternators. Has anyone used this style I'm not to crazy about large case 6g couple of searches sounded like it was marginally better in longevity than stock.I'm getting ready for a long trip in a few months and just changed a brand new stock unit out that that about 20k. The lifetime warranty is nice I guess but not really liking how long they last so just looking for responses on these units. I would upgrade the charge wire and probably add a extra ground strap.

 

[yan7gin]

20K on an alternator is pretty low. are you sure it wasn't a Chinese knock off? i'm still on my OEM one no problem.

I think most people will upgrade for the mean green high output but not sure

 

[BlueOx1]

I'm not sure if it was chinese or not,bought brand new out of Oreillys so it could of been my Motorcraft reman went about 50k. I might try that one I linked in the previous post and see how it does.

 

[bugman]

That is the problem with rebuilt parts from a box store such as Oreilly, NAPA, Autozone or any of the others out there. You never know just what they rebuilt on it to get it up to factory specs and what is going to fail next. Even with a good warranty it doesn't do you any good if it dies on you when you are a couple hundred miles from that parts store.

For alternators or starters I will go to a local automotive electrical rebuild shop. They are getting harder to find but they are still out there. Usually when they rebuild a part it is rebuilt from the ground up.

 

[BlueOx1]

The Alternator I bought out of Oreilys was brand new.

 

[klhansen]

The Alternator I bought out of Oreilys was brand new.

I bought a new NAPA alternator. Guess where it was made.....

I upgraded to a Ford 6G Large Case 140A unit, which went south on me, and I had it rebuilt locally, using the NAPA alternator as a short duration spare when the good one was in the shop, then swapped back to the 140A unit as soon as it was fixed. I didn't want to depend on the offshore built unit.

 

[NYB]

Where do you guys think the local alternator rebuild shop gets new component parts from?

 

[blue99stroker]

Ya but he atleast he/she fully inspects it and replaces everything if asked. If they are a professional.

The Chinese Guys just fix what was wrong and throw it back together. Kinda like ford HD4r100's haha

 

[BlueOx1]

Sorry I haven't got back to this ,Excursion got hit in the rear and has to be inspected for whether or not they are going to total it. I'm hoping they don't I have to many parts to strip and move to another excursion if they do.

 

[444-4D]

I bought a new NAPA alternator. Guess where it was made.....

I upgraded to a Ford 6G Large Case 140A unit, which went south on me, and I had it rebuilt locally, using the NAPA alternator as a short duration spare when the good one was in the shop, then swapped back to the 140A unit as soon as it was fixed. I didn't want to depend on the offshore built unit.

What failed on your 140 amp unit?

 

[klhansen]

What failed on your 140 amp unit?

Not sure. I didn't quiz the guy who fixed it for me. I should have asked.

His shop was about 2 blocks from work and I was too busy to mess with it myself. The truck was about ready to die with lights starting to dim and other stuff going wonky as I passed by there. I had my wife bring me the spare at work, swapped that out and took the 140A unit to him that afternoon.

 

[Ford06]

I have the Quick Start 200 amp large frame on my truck since January 2010 and have had no problem with it. It probably has 100k miles on it. DC Power is another good name in high capacity alternators.

https://alternatorparts.com/6g-series-heavy-duty-alternator.html

 

[xanthias]

Mechman for the win. 370 amps and made in Knoxville, TN. Be patient for build time and bring your wallet.
6 Phase 370A Elite series alternator for Ford W/ FREE OFC CABLE KIT! - Mechman Alternators

 

[1SAWB]

I had gone thru two "premium" alternators before I called my buddy Matt @ Mechman alternators now I can power a small city. super high quality, fast service. every alt comes with a dyno sheet. mine was close to 400 amps max and just over 100 amps off idle. not the cheapest but I would say the best.




6 Phase 370A Elite series alternator for Ford W/ FREE OFC CABLE KIT! - Mechman Alternators

 

[Phil G.]

I had a local guy build me a 200A large frame alternator a couple years ago...it failed twice. The second time at 7am heading east with a trailer on. I got to a town, grabbed a NAPA, gave my large frame back as a core I was so po'd with it.

So I spoke to this guy, he confirmed they were off shore parts.

He said he found a source for USA built parts and had sold another guy that really miles his truck up a 220A large frame unit with these parts and the guy was having good luck with it. He said it would have a 270A rectifier in it and he could do it for $250. I might just take him up on it.

 

[redrocker]

I just put a DC power alt 185 amps so far so good

 

[BlueOx1]

I wouldn't mind the 240 amp, my wiring will get upgraded when I do it for sure.