Alternator OEM FORD or GENERAL MOTORS

PartReview Score

Rank #10 in ranking

3.1

Lights

3.0

Noise

5.0

Warning light

3.0

No data

PR Score

Ranking

Votes

Reviews

Average rating

Properties

Car

PartReview Score

Rank #16 in ranking

3.0

Lights

3.6

Noise

1.2

Warning light

2.8

No data

Reviews

All

OEM FORD

GENERAL MOTORS

OEM FORD › Alternator

ModSpdSomDrg 7 Dec 2025, 23:02

Noise:

Rating 4.0

I can\u2019t make out the sound but once upgraded the alternator on my 29 roadster pu that had a late model bronco v6 in it and the darn thing sounded like I had a super charger with the whirling. Crazy sound but ran perfectly fine for as long as I had the truck (years).

Pros: ran perfectly fine

Cons: sounded like super charger

Vehicle: Ford Bronco

OEM FORD › Alternator

32carsandcounting 1 Dec 2025, 15:41

Warning light:

Rating 4.0

First gen Expedition- I'm not a Ford fan, but some of those old Expeditions were amazing. Definitely seem to be hit or miss, either bulletproof or a nightmare with no in between. My father had a 98 that he bought new and scrapped in 2019 with just shy of 500k miles, absolutely beat the living shit out of that truck and it just wouldn’t die, only ever needed an alternator, 2 shifter cables, a brake hose and 2 ignition coils.

Pros: bulletproof, wouldn’t die

Cons: hit or miss

Vehicle: Ford Expedition

Mileage: 500000 km

OEM FORD › Alternator

vxarctic 14 Nov 2025, 17:35

Rating 5.0

2021 Got the extended warranty, one year after the standard warranty went, so did my alternator. Extended warranty covered it.

Pros: warranty covered alternator

Vehicle: Ford Bronco

GENERAL MOTORS › Alternator

Appropriate-Bee7061 11 Oct 2025, 01:44

Warning light:

Rating 5.0

I will always vote for a 10SI or 12SI GM alternator swap on an L-series engine. Affordable conversion bracket. 1-wire GM alternators are simple, reliable, cheap and readily available online but not easy to find in parts stores. 3 wire GM alternators are are easy enough to wire up and are absolutely everywhere in parts stores if you’re more concerned about parts availability and potential breakdowns on long adventures.

Pros: simple, reliable, cheap, readily available

Cons: 1-wire not easy to find

GENERAL MOTORS › Alternator

No-Perception308 25 Nov 2025, 22:38

Warning light:

Rating 3.0

My shitbox, I replaced my alternator just for my window motor to go bad, I replaced the window motor just for the thermostat to go bad the next day, it’s inevitable.

OEM FORD › Alternator

No_Season_354 22 Apr 2025, 21:17

Rating 1.0

I've got a 2017 ford escape needs a new alternator costs 1100 $, wtf for a Ford not happy.

Cons: expensive alternator replacement

Vehicle: Ford Escape

OEM FORD › Alternator

Ordinary-Ad5707 19 Jan 2025, 08:33

Rating 1.0

I’ve been busting my butt all day trying to get the alternator out of my 2004 ford focus (mk1) for a few painful reasons

Vehicle: Ford Focus

GENERAL MOTORS › Alternator

StandupJetskier 28 May 2023, 02:40

Rating 1.0

three alternators in a Cadillac, even "new GM" are remans, only way to get a new one (never installed, made of new parts, new for you) is to buy a new car.

Cons: multiple failures, poor reliability

OEM FORD › Alternator

Emergency_Cattle_549 11 Apr 2023, 11:29

Rating 1.0

My neighbor had a Ford mustang and he had to jump start it about once a week. I checked the alternator and it had power when the car was off. Bad diode.

Pros: bad diode

Cons: power when car off

Vehicle: Ford Mustang

OEM FORD › Alternator

Voodoo1970 3 Feb 2023, 04:49

Rating 1.0

I have a shitty looking Ford Focus that I maintain myself...The alternator failed and I couldn't be bothered doing the work myself so I took it to the local dealer.

Vehicle: Ford Focus

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Which alternator to choose — OEM FORD or GENERAL MOTORS?

If choosing alternator across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.

We compare alternator across these categories:

Comparison of alternator OEM FORD and GENERAL MOTORS

PR Score.
Overall ranking.
Vote balance.
Average rating.
Number of reviews.
Feature ratings.
Car owners’ choice.

Which alternator are better — GENERAL MOTORS or OEM FORD?

In March 2026 on PartReview, alternator OEM FORD were overall better than GENERAL MOTORS.

OEM FORD received a PR Score of 57 out of 100, and GENERAL MOTORS scored 50 points.
OEM FORD ranked 10 in the overall ranking, and GENERAL MOTORS ranked 16.
The average rating is higher for OEM FORD (3.1) than for GENERAL MOTORS (3).
Alternator OEM FORD have better feature ratings than GENERAL MOTORS:
- Warning light - owners believe, that this property for OEM FORD is better than GENERAL MOTORS.
- Noise - drivers claim, that this property for OEM FORD is outperforms GENERAL MOTORS.
- Lights - reviews suggest, that this property for GENERAL MOTORS is preferred to OEM FORD.

Which alternator are more popular — OEM FORD or GENERAL MOTORS?

In March 2026 on PartReview, alternator OEM FORD were overall more popular than GENERAL MOTORS.

By vote balance, alternator OEM FORD surpassed GENERAL MOTORS:

For OEM FORD, the ratio of positive (46) to negative (34) votes is 12 votes.
For GENERAL MOTORS, the ratio of positive (17) to negative (17) votes is 0 votes.

By number of reviews, alternator OEM FORD surpassed GENERAL MOTORS:

For alternator OEM FORD there are 26 reviews: 14 positive, 2 neutral, 10 negative.
For alternator GENERAL MOTORS there are 11 reviews: 5 positive, 1 neutral, 5 negative.

Which alternator do car owners prefer — OEM FORD or GENERAL MOTORS?

In March 2026, according to PartReview, alternator OEM FORD and GENERAL MOTORS have not taken top places in car-specific ratings. You can help by adding your review about these manufacturers.

Other comparisons of alternator

If this comparison didn’t fully answer your question, there are many others on PartReview.

For example, comparisons of alternator OEM FORD with: Denso, Bosch, Duralast, OEM Toyota, VALEO, OEM Honda, OEM Volkswagen, AC DELCO, OEM Audi, OEM Nissan.

Also available: comparisons of alternator GENERAL MOTORS with: Denso, Bosch, Duralast, OEM Toyota, VALEO, OEM Honda, OEM Volkswagen, AC DELCO, OEM Audi, OEM Nissan.

You can also see who is better among other alternator manufacturers: Bosch or Denso, Denso or Duralast, OEM Toyota or Denso, Bosch or Duralast, Denso or VALEO.