Thread: Alternator not charging adequately (Thor 4.6 150A)

Hi

I would try burson auto parts, they have staff who actually know things about cars

I have no affiliation with them, but they are often cheaper than supercrap and certainly better informed

Steve

Burson quoted $820 for the alternator and $240 for the regulator. He was more helpful though. These aren't cheap bits!

Britishparts UK have a Thor P38 alternator 150A (ERR6413) for less than A$200

Electrical | Range Rover P38A | British Parts UK

The regulator comes with brushes built in... Bosch part number 1 197 311 549
Another number on the rear of the SCR casing is EL14V

none of the ebay cross references support this number...

got to take SWMBO to a 12.30 med appt... will chase up my receipt later. Unlikely you'll get "new"OEM... even LR parts people offering only factory reco units for this particular Bosch unit...

cheers

IIRC this is the bloke I bought a replacement regulator from
Bosch Alternator Voltage Regulator BHA Landrover | eBay

Postage was less than $10 and arrived within 10 days...

cheers

Thanks Hoges, looks like that alternator model you mention (ERR6413) supercedes the ERR5834 (Bosch 0123520022) installed in my MY2000. ERR6413 = Bosch number 0-123-510-073.

MR automotive ERR6413 - $1050 (genuine), $495 (aftermarket).
Burson cant get regulator 1 197 311 549 - Bosch says none in Oz.
Supercheap $220 for regulator 1197311549.
Supercheap $920 for alternator 0-123-510-073.

Good link here with bosch part numbers from wayneg.

More good info from here:
The Bosch AL0807N is the same as a Land Rover ERR6413, which is the same as a Bosch 0-123-510-073, which is the same as the alternator referenced by Lester as 13812.
These numbers all reference the same alternator. It is one hundred percent new, by any of these numbers, unless deliberately sold as a used part.
The Bosch AL0807X is a cheaper, reconditioned model. It is in every way the same, except it is not one hundred percent new.

I doubt there have ever been stocks of the regulators avaiable from Bosch in Australia... got similar story when mine played up a couple of yrs ago.

A wholesaler in the UK claims to have immediate availability of the genuine Bosch regs. for GBP53.60 (no mention of VAT...)

Wood Auto Supplies Ltd :: VRG46472

Triode's US$35 offering from ebay is an exact copy of the OEM part.

Provided the bearings are in good condition and there's no evidence of diode problems, I'd be surprised if your alternator needs anything further than a new regulator (20 min replacement---incl cup of coffee!)...

You can still get aftermarket complete units from the US for around $250 landed

New Alternator Land Rover Range Rover 1999 2000 150Amp | eBay

Not long ago I spotted a brand new alternator for sale in the small adds in Perth. I picked it up for a steal, fitted it and sold the old one for the same price to a Disco owner looking for a 150a unit, So I got a new Bosch one for free.

I ripped out the alternator and regulator. The regulator looks a bit fried. With black residue everywhere. I cleaned it all up with electrical contact cleaner and no improvement

I have a good 14.20v on startup, but over the course of ~5 minutes that declines to 14.08v at the alternator and 14.05v battery, later after a drive I have seen it as low as 13.8v. My cables and connectors are all good.

Here are some pics of the alternator and the regulator. The first one looks a bit like when Darth Vader took his helmet off for the first time... The second one is after a spray of electrical contact cleaner and the regulator removed and flipped over.