alternator / generator

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skhochay

skhochay

10 Year
Joined
Dec 13, 2012
Threads
125
Messages
1,135
Location
Meridian Idaho
Hi ladies.

....anyone know how many amps on OEM genuine alternator for LC 2001 ?
I am seeing on e-bay 80 amps, 100 amps and 210 amps.
I need one that I have OEM without any amp demotion or promotion.
 
100 amps is OEM. Do you have a rebuild shop nearby? O'Reilly has the lifetime Ultima for 127.00
 
Keowee said:
100 amps is OEM. Do you have a rebuild shop nearby? O'Reilly has the lifetime Ultima for 127.00
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As difficult as it is to replace the alternator on these things I would NOT buy a rebuilt from any of the auto parts stores.
They will only last about 6mo, even with the lifetime warranty the cost of a brand new one is well worth the 200,000 miles life span.
I bought a brand new Denso off Amazon for under $300 last year.

Long story short, on my Land Rover I went through 4 lifetime warranty alternators from all three of the major auto parts stores in 2 years, finally bought a used one, last lasted 4 years.
There are only 2 alternator/starter rebuilders in the US, all the auto parts stores use them, they only replace the parts that are bad, they do NOT replace the bearings unless they are bad, regulators, brushes....they ONLY replace the bad parts.
When it comes in, it gets inspected, then cleaned, bad parts replaced, shipped back out.
 
There's always the DC Power 270A option
upload_2017-6-3_12-40-25.webp
 
Spike555 said:
As difficult as it is to replace the alternator on these things I would NOT buy a rebuilt from any of the auto parts stores.
They will only last about 6mo, even with the lifetime warranty the cost of a brand new one is well worth the 200,000 miles life span.
I bought a brand new Denso off Amazon for under $300 last year.

Long story short, on my Land Rover I went through 4 lifetime warranty alternators from all three of the major auto parts stores in 2 years, finally bought a used one, last lasted 4 years.
There are only 2 alternator/starter rebuilders in the US, all the auto parts stores use them, they only replace the parts that are bad, they do NOT replace the bearings unless they are bad, regulators, brushes....they ONLY replace the bad parts.
When it comes in, it gets inspected, then cleaned, bad parts replaced, shipped back out.
Click to expand...

You might well have had other problems with your Land Rover (famous for electrical problems) that contributed to the failure of the alternators you cited. Did you use PREMIUM 'remans' from each of the Auto Stores? The O'Reilly unit is a good one and has a good reputation. Each unit tested.

upload_2017-6-3_17-5-0.webp
 
flintknapper said:
You might well have had other problems with your Land Rover (famous for electrical problems) that contributed to the failure of the alternators you cited. Did you use PREMIUM 'remans' from each of the Auto Stores? The O'Reilly unit is a good one and has a good reputation. Each unit tested.

View attachment 1472102
Click to expand...

No I had zero electrical problems, it was the reman units, "premium" just means they can charge more for it. I heard it right from the managers mouth as I shoved the 4th alternator up his ass.
Besides, why would a used one last 4 years when all of the reman ones lasted an average of 6mo? The used one was installed after the 4th reman.
I had gotten quit good at replacing that alternator, 15min start to finish with a $10 socket set that I carried at all times and my Swiss Army knife.
 
Spike555 said:
No I had zero electrical problems, it was the reman units, "premium" just means they can charge more for it. I heard it right from the managers mouth as I shoved the 4th alternator up his ass.
Besides, why would a used one last 4 years when all of the reman ones lasted an average of 6mo? The used one was installed after the 4th reman.
I had gotten quit good at replacing that alternator, 15min start to finish with a $10 socket set that I carried at all times and my Swiss Army knife.
Click to expand...

Who makes the alternator for Land Rover? Are you comparing a re-man Bosch to a Denso and then declaring ALL re manufactured alternators inherently faulty. Could a company (the re-manufacturer or seller) stay in business if the failure rate was anything like what you propose?
 
flintknapper said:
Who makes the alternator for Land Rover? Are you comparing a re-man Bosch to a Denso and then declaring ALL re manufactured alternators inherently faulty. Could a company (the re-manufacturer or seller) stay in business if the failure rate was anything like what you propose?
Click to expand...

My DIscoery's alternator was a MagMerelli.
I am not comparing brands. All I am saying is what I was told by two store managers and from research. I researched the hell out of it because I was tired of replacing alternators, even though they were free, I was still out time, not to mention that one failed while on vacation. I had to drive 200 miles with no alternator, which meant no a/c or radio.
There are two companies that rebuild alternators and starters, they put the rebuilts in different boxes with different names and sell them to all of the auto parts stores, NAPA, AutoZone...all of them.
The name on the box means nothing, the store you buy it from means nothing, they are all rebuilt buy one of the two companies. These companies only replace the parts that have failed prior to coming in, then they test them, if they pass, they get boxed up and shipped out. If they fail, those parts get replaced.
If you are buying a Bosch reman from Bosch, then I cannot speak to their reman practices, if you are buying a Duralast, NAPA, AdvanceAuto or other store "branded" alternator or starter then you are getting a reman from one of those two places.
 
Spike555 said:
Exactly, DENSO REMAN, not parts store reman.
Click to expand...

I haven't step foot in an AutoZone in 20+ years, they were crap back then. NAPA is my preferred local, but its ONLY for base products like oil, air filter, cleaners, misc hose, belts, etc.. I don't use any of their "store brand" parts especially brake pads or rotors.

I love the Akebono Pro Ceramic pads. Best pad I've ever run. Have them on all my cruisers that they make them for, including my D1, RRC, and IZZY Trooper.

J
 
Spike555 said:
As difficult as it is to replace the alternator on these things I would NOT buy a rebuilt from any of the auto parts stores.
They will only last about 6mo, even with the lifetime warranty the cost of a brand new one is well worth the 200,000 miles life span.
I bought a brand new Denso off Amazon for under $300 last year.

Long story short, on my Land Rover I went through 4 lifetime warranty alternators from all three of the major auto parts stores in 2 years, finally bought a used one, last lasted 4 years.
There are only 2 alternator/starter rebuilders in the US, all the auto parts stores use them, they only replace the parts that are bad, they do NOT replace the bearings unless they are bad, regulators, brushes....they ONLY replace the bad parts.
When it comes in, it gets inspected, then cleaned, bad parts replaced, shipped back out.
Click to expand...
ya I will spend $300 for new denso but who is selling for 300?
 
Some posters in this thread echo my experiences with rebuilt anything from the chain stores. Just don't do it. Your time isn't worth the trouble.

If you're near Ag country, commercial fishing, commercial trucking hub(s) or similar there is likely a quality local rebuilder for starters, generators, & alternators. Talk to them. My local guy has told me "I can't get parts I'm willing to use to rebuild that, buy one new or I can sell you one that is new." Yet when I had the the Denso alternator and starter base-line rebuilt on our 245k miles new to us CTD he said "oh yeah, these alternators only ever need brushes but I'll replace the bearings too because I know where you're going to take that truck."

I only go to the local chain store when I can't get it from my two locally owned parts houses. Even the most basic stuff like oil & filters I get from them, paying more I know, because when I'm in a bind they will help me and the chain stores won't care. I see that cost difference as paying for their continued expertise.
 
skhochay said:
how is this 270 AMP good compare to 100AMP I know by the law of physics that is will not generate a good output on low RPM, needs a smaller pulley or something.
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It's not, you need upgraded wiring to handle the amps.
Here is how a alternator works, the car runs off of the battery, the alternator keeps the battery charged. When the alternator senses the battery is below "X" volts the alternator kicks in at max amps, changes the battery and then stops charging when it senses the battery is at "Y" volts.
The alternator either charges or it does not charge, there is no inbetween. When it charges it is at it's max amps, there is no inbetween.
Now there are exceptions to this rule, there are variable rate alternators, but 99% of all alternators work in this basic manner.
On or off. Charge or not charge.
 
skhochay said:
ye I got that , but I was looking everywhere and I can get rebuild DENSO or new BOSH for about $150 to $200 , but from the dealer brand new DENSO OEM $900
Click to expand...

Get the rebuilt Denso, Denso rebuilds them themselves, they do not farm them out to a cheap as possible place, Thats what the auto parts stores do.
I cannot speak about what Bosch does. But I'd get the Denso reman and be done with it.
 
Just a thought... and generally against the grain around here. Have your dealership do the work. After all the research on my 2006 I decided to have the dealership put in a reman Denso (Toyota part) that they guarantee for 1 year including labor. Threads on here will say :banana::banana: for the older 100 series but on 04+ (?) the fan shroud, lower radiator hose, power steering pump and tranny cooler lines all needed to be moved. And I thought it prudent to let them break something on my 11 year old 132k truck. I have a great relationship with my dealer and they allow me to observe, take pics and consult on parts during the process.

Perfect, no. If I had a shop for of parts and a loaner vehicle... well, you get the picture. I was in at $675 parts and labor and a hell of a lot of piece of mind.
 
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