Alternator

Alternator

Postby pete65 on Sun, 20 Dec 2020 12:04 +0000

Gday , I need to replace the alternator on my 2013 SR5.
A lot of the alternators I'm looking at online are 130 amps.
Can someone please let me know if this is standard on the D4D & if not are there any issues with fitting the higher amperage unit ?
Cheers,
Pete.
PS - I searched the forum first but really couldn't find an answer.
Last edited by pete65 on Mon, 21 Dec 2020 1:45 +0000, edited 1 time in total.
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Re: Alternator

Postby martynvella on Sun, 20 Dec 2020 12:57 +0000

They are 130 amp. Designed for D4D engines in vans with dual A/C systems. It doesnt hurt to run them but if you dont need extra power the smaller std ones work just fine.
It is recomended to upgrade the altetnator fuse if fitting one as it is only rated at 100 amps and given the right conditions the larger alternator can surge and blow that fuse.
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Re: Alternator

Postby pete65 on Sun, 20 Dec 2020 2:11 +0000

Thanks , think i'll stick to the 100 amp job.
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Re: Alternator

Postby Rob_Wood on Thu, 04 Feb 2021 10:55 +0000

Your choice of course, but as Martynvella pointed out, the larger current rating does NOT mean you will get the extra current, it just means that its there if you ever need it. If you will never tow a caravan, boat or go camping then you might never need it, but if it was me and the 2 options were the same price I would recommend the 130A unit.
Replacing the fuse with a larger one would not be needed if you don't think you'll need the extra power. The fuse is there to protect the cable used in the wiring and it is usually rated to protect that cable. If you are going to increase the size of the fuse then I would STRONGLY suggest you look at the current rating of the cable currently in your vehicle. It's far easier to replace a fuse than a loom.

Pete65, I've written this out, not just for you, but for others on the forum that might read this. It often amazes me how often people upgrade one part of a system but don't think to look at other parts of the same system that might be affected.
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