Alternator replaced last year with OEM Denso, 13.5V when car is running
Pros: 13.5V when running
Vehicle:
Toyota 4runner
Best Alternator for Toyota 4runner
Similar symptoms when my '05 factory alternator died. Get a jump then measure the voltage at the battery. If it's ~14VDC, the alternator is charging. If it is only ~12VDC replace the alternator.
Pros: charging at 14VDC
Cons: 12VDC replace alternator
Vehicle:
Toyota 4runner
For anyone looking for a drop in upgrade, I used a 105 amp for a Suzuki. Made by Denso. No harness needed, plugs right in. Going strong for a couple years now in my 3rd gen.
Pros: plugs right in, going strong
Vehicle:
Toyota 4runner
Part number: DNP-210-0461
I like the [Denso alt for a Suzuki](https://adventuretaco.com/go/denso-210-0461-105a-remanufactured-alternator/), which is plug-and-play and does 105A. That's a \~50% increase over stock and quite a bit less expensive than the TAE.
Pros: plug-and-play, 50% increase
Cons: less than TAE
Vehicle:
Toyota 4runner
Part number: 210-0461
Owned a 4th gen 4runner for over 10 years. Boring to drive and look at, but it took a lot of abuse and never gave me any problems. It only had to be towed once due to the alternator going out on me 50 miles from home.
Pros: took a lot of abuse
Cons: boring to drive
Vehicle:
Toyota 4runner
I’ve had two D/L Alternators. Each has lasted 3 or 4 years.
Vehicle:
Toyota 4runner
As someone pointed out, don't expect the 150 dollar alternator to last that long. I threw on my 4runner a few months back because that's all that was in stock locally and I'm gonna have to replace it again, it's already whining. I'd definitely spend $350 or whatever it is on a denso unit
Pros: Denso unit is better
Cons: cheap alternator failed
Vehicle:
Toyota 4runner
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Top manufacturers of alternator for Toyota 4runner
This part for Toyota 4runner is made around the world. We have reviews for alternator manufacturers from countries such as: Japan, USA .
In March 2026, the ranking of alternator for Toyota 4runner on PartReview included 3 manufacturers. It is based on 7 reviews and 22 votes.
Which alternator to choose for Toyota 4runner?
Last month, PartReview users preferred Denso. 40% of positive votes went to this manufacturer.
In second place: alternator OEM Toyota — 13%.
Third place: Duralast with 0% of the votes.
In the overall ranking of alternator, which aggregates opinions of owners of different car makes and models, these brands hold the following positions:
- Denso ranked 1, PR Score — 81. Based on 218 reviews and 673 votes.
- OEM Toyota ranked 3, PR Score — 73. Based on 40 reviews and 128 votes.
- Duralast — rank 18, PR Score — 43. Based on 54 reviews and 172 votes.
Other parts for Toyota 4runner
After seeing which alternator owners of Toyota 4runner prefer, check other popular parts for this car. In March 2026, leaders on PartReview were:
- #1 Spark plug NGK - 50% votes.
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- #1 Engine oil AMSOIL - 42% votes.
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