Alternator

[dc400]

Hi all. Can anyone give me the part no. for 1996 4ltr Alternator.There seams to be so many different types and numbers mentioned on here.Looked on Chimeara pages and type A127-65 to me seems like it is for pre serp. Thanks.

[Penelope Stopit]

65 amp output could be enough

To be 100% sure, find someone with a high amps range ammeter, switch all electrics on and see what the total discharge current is

Fit alternator with a output a little higher than the above found figure

As nawarne mentions below

If size doesn't matter there's this for 110 pounds https://www.ebay.co.uk/itm/322466018765?hash=item4...

Edited by Penelope Stopit on Friday 11th June 09:26

[nawarne]

dc400 said:

Hi all. Can anyone give me the part no. for 1996 4ltr Alternator.There seams to be so many different types and numbers mentioned on here.Looked on Chimeara pages and type A127-65 to me seems like it is for pre serp. Thanks.

DC - if you search/Google search through Piston heads, you'll find several references to outlets - notably companies preparing Land-Rovers for military use and uprating the alternator to 120A units in the process.
I got one a few years ago, original Denso or Mag-Marelli units brand new still boxed. They are 100A units, but that doesn't matter a whit.
IIRC, they were selling for around £100.

Nick

[Riff Raff]

I fitted one of the 120A ones linked to by PS. I changed the big 100A fuse to a 120 just to be on the safe side.

If you want a standard one, Racing Green do one for £120 plus the VAT - a bit less if you are a TVRCC member.

Apropos of nothing I also fitted an overrunning alternator pulley at the same time. Engine bay bling!

[dc400]

Thanks for the reply’s .I will get one sorted when I get back home.The one PS sent the link for says made in China do you think quality will be ok.

[Penelope Stopit]

dc400 said:

Thanks for the reply’s .I will get one sorted when I get back home.The one PS sent the link for says made in China do you think quality will be ok.

Mmmm didn't see that, sorry

No leave well alone

[blaze_away]

If you still have your original one, and its a good brand, then a refurb is a good option. Usually there will be a local company doing refurbs on alternators, starters etc

[phillpot]

dc400 said:

Thanks for the reply’s .I will get one sorted when I get back home. The one PS sent the link for says made in China do you think quality will be ok.

and comes up as "out of stock" when I clicked on it !

Personally I would take my advice from someone who actually has a TVR and has bought/used the product suggested

[Riff Raff]

phillpot said:

dc400 said:

Thanks for the reply’s .I will get one sorted when I get back home. The one PS sent the link for says made in China do you think quality will be ok.

and comes up as "out of stock" when I clicked on it !

Personally I would take my advice from someone who actually has a TVR and has bought/used the product suggested

Just to clarify something. When I said I had the one that PS linked to, I didn't twig that Marelli type meant not made by Marelli. The one I bought is a 120A actual Marelli, with a made in Italy sticker on it. From memory (it was a few years ago now) it was a smidge over £100. I'm pretty sure I bought it after it was recommended on here - it was probably a ChimpOnGas thread.

[Penelope Stopit]

Riff Raff said:

it was probably a ChimpOnGas thread.

It was indeed a COG topic that was posted nearly 4 years ago

You suffer from a very good memory

---

ChimpOnGas said:

The Land Rover part number for the original Magneti Marelli 100 amp alternator fitted all Chimaeras is AMR4247G, you could buy it from a TVR parts specialist but the cost is £153.54 including VAT & delivery and there's no mention of what brand it is, I suspect that means it'll be one of the cheaper makes you could have off EBay for a lot less or they would be shouting about it being a quality brand.

Interestingly I discovered when Land Rover fitted a heated front screen to Range Rovers & Discoveries in 1997/8 they also uprated the alternator from 100 amps to 120 amps, the body dimensions and mounting points of this higher output alternator are exactly the same as our 100 amp AMR4247G alternator making the 120 amp AMR2938E is a direct replacement to AMR4247G.

I wanted a Denso brand alternator, Denso is a quality make you can trust and if you look into it you'll actually find they've owned the Magneti Marelli factory in Italy since 2004 so I started researching how much the Land Rover parts specialists charge for a genuine 120 amp AMR2938E, I got prices ranging from £200 - £150 but eventually found one LR parts specialist selling a genuine Denso brand AMR2938E for £145 including VAT & postage.

Before I pulled the trigger I thought rather than keep Googling 'AMR2938E' I would get Denso's own part number and do a few searches on that, the Denso part number for AMR2938E is DAN016. Searching on DAN016 lead me to an Ebay listing that seemed to be Denso's own Ebay shop.

Here it is....

http://www.ebay.co.uk/itm/NEW-OE-DENSO-DAN016-ALTE...

This 120amp alternator comes direct from Denso who own Magneti Marelli, the price was and still is an excellent £102 delivered, when it turned up it said made in Italy on it so it was clearly made in the Magneti Marelli factory where the originals were manufactured.



Be careful when searching for a Range Rover V8 alternator, when Land Rover released the Thor engine (still a Rover V8 but with a different inlet manifold) they also changed the alternator, the mounting arrangement is very different so this alternator will not fit our TVRs. However, while the 100 amp AMR4247G ran for quite some time the dimensionally identical AMR2938E (Denso part no: DAN016) only ran for a year or so making it quite rare, everything I read about the 120 amp AMR2938E said it's a direct swap for the 100 amp AMR4247G with many Range Rovers owners completing this upgrade so I've just followed their lead.

Here's the dimensions of the 120 amp AMR2938E (Denso part no: DAN016)



And by way of a comparison here's the dimensions of the 100 amp AMR4247G (Denso part no: DAN020)



As we can see they are dimensionally identical, only the amp output differs.

I've been running the the £102 AMR2938E 120 amp (Denso part no: DAN016) on 'Ol Gasbag' for a number of months now, it fitted perfectly as you'd expect and is providing excellent service so far, it is after all the proper real deal OEM quality original, just with 20 more amps to give should my new LPG injectors demand them.

Hope this helps, Dave.

COG posted some extremely helpful information to these forums and is no doubt missed by many

[Zener]

Just remember that the Denso alternator won't be Japanese even though the brand is , called progress apparently

[dc400]

Hi, all sorry I haven’t been able to reply to your many helpful messages.I have been able to find an alternator amr2938 120 amp new they say it is a genuine range rover part P38 A127 120amp AMR2938 New .They do say these are now obsolete parts and were bought as a bulk deal .Will this be ok as it does not have the letter E after AMR2938 as suggested in one of your posts .Thanks Derek.

[Penelope Stopit]

Sorry, can't answer that

You could contact the seller about country of manufacture

[phillpot]

This would suggest AMR2938 can be used in place of the one with an E on the end?

[dc400]

Thanks for that Phillpot, I have spoke to the seller tonight and he said same as your post. I have ordered one should be here Wednesday so will find out when it arrives.Thanks everyone for your reply’s.Dc.

[dc400]

Hi all. Well alternator arrived today not a bad service as I only ordered it Saturday afternoon.on car and running,It has come from Britcar. It is in a box marked with AMR2938 MAGNETTI MARELLI .Alternator has a Land Rover label on with all codes on.It also has MAGNETTI MARELLI Italy stamped into the case.So for £99.95 including 2 day delivery let’s hope it is ok.Thanks for all of your help with numbers .DC