Bigger alternator?

[shovonmshahriar]

Anyone put bigger alternator in our trucks or did any research on the idea? Please share.


[This topic may have been already discussed to death, if so, my apologies and please ignore the thread.]

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[Frenchy]

Ummmmm........ How big are you trying to go?! If memory serves me right the Ranger comes equipped with a 170-180 Amp Alternator from the Factory. No need to go bigger then that. If you do, then you have problems

 

[Grumpaw]

Old thread from a few years ago, and via google...supposedly 2 different alts...one for base models at around 160-170 and one for Tremors and Lariats, up to 190 amps due to more electronics and larger batteries.
Supposedly there is a sticker or plate on the alt that has the info/rated output.

 

[airline tech]

The only specs I can find and the manuals on give the Specs for the base alternator:
This covers all trims (except Tremor)

PN: KB3Z-10346-B
105 Amps & Idle (Min) - 170 Amps Max @ 2,250 RPMs

However, if you view Ebay pics of alternators, they have a label with 150 stamped on it.
So, 150 Amps is the nominal range with a Max Output of 170 Amps

Tremor: PN: HB3Z-10346-A (W-Aux Switches) - cannot find specs for this but I suspect it is around 225 -amp range -using the (Alternator) fuse as a reference guideline.
225 Amp Fuse vs 300 Amp Fuse for the Tremor

Basing an a 55-Amp cushion for the standard alternator and the fuse (225-Amp) @ 170 Max Output.
So, if following the same cushion, the Tremor should be a 225 Amp alternator with 245 Amp Max Output (with a 300 Amp) fuse.

 

[Av8or1]

They're hard to come by, but Broncos have a 230amp alternator for our 2.3L ecoboost. They seem to be on back order just about everywhere, and when not be ready to shell out a good amount for it.

Explorers and Mustangs and their 2.3L ecoboost also have several high output aftermarket alternators you could put on your ranger.

Finally and the most sure-bet would be take your alternator to a local alternator shop, and they can certainly upgrade yours to be higher output.

 

[Stevedbvik1]

The Tremor has a 250 amp alternator
Pictures show the stock 150 amp and the 250 amp for the Tremor

 

[airline tech]

The Tremor has a 250 amp alternator
Pictures show the stock 150 amp and the 250 amp for the Tremor

Awesome - Thanks for the CORRECT info and installed verification

 

[Frenchy]

Even with all the electronics on the Ranger, I feel the 150 amp should be more than adequate for what most anyone is doing. Even if you add some driving lights or a second battery, the 150 amp alternator can do a lot.

 

[airline tech]

Just to finish off the requirements to upgrade the Alternator - if one was to choose to do it.
Then the 250 Amp Alternator & Replace the 225 Amp fuse with a 300 Amp Fuse on the BMFL.

The only noted (that I could find) As-Built file would be in the PCM would need changed to tell the PCM that a different amperage alternator is installed for the LIN circuit control of it.

No changes in the BCM as the BMS data files remain the same

7EO-162-01

From: Factory - 0085-0000-0085 (150-159 Amp Nominal)

To: Tremor - 008F-0000-0025 (250 Amp Nominal)

So, change xx85 to xx8F

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