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Alternator Rectifier


Mont
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I've left my alternator in with a local fella to get rebuilt but he's having trouble finding a replacement rectifier.

 

He's heading off on Easter holidays this weekend and offered to either get me a new replacement alternator or keep looking for a rectifier when he returns in a couple of weeks.

 

I would prefer my original Toyota unit was repaired rather than get a replacement and happy to wait but are the rectifiers typically hard to get now?

 

Has anyone a part number for a decent (non-Chineseium) replacement that I can give him to help speed things along?

 

Thanks :)

Edited by Mont (see edit history)
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I've left my alternator in with a local fella to get rebuilt but he's having trouble finding a replacement rectifier.

 

He's heading off on Easter holidays this weekend and offered to either get me a new replacement alternator or keep looking for a rectifier when he returns in a couple of weeks.

 

I would prefer my original Toyota unit was repaired rather than get a replacement and happy to wait but are the rectifiers typically hard to get now?

 

Has anyone a part number for a decent (non-Chineseium) replacement that I can give him to help speed things along?

 

Thanks :)

 

I had exactly this problem when I rebuilt mine. The main connection, a threadded stud on the TT one comes through the housing at an angle. I ended up buying a high power lexus recitifier pack, chopping the stud modifying it within the alternator housing. Wasnt pretty but worked well and has stood the test of time.

 

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Edited by Shane (see edit history)
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I bought a replacement recently from ebay I think it was 183748814240 let me double check though (checked and yes it was this one, fitted to my 1993 RZ auto)......it was only just over £100 delivered and it's doing the job, I am repairing the original as a spare, as you'd think this one wasn't built as well given the price? (rebuilding bits will be around £100, I have got the rectifier I linked to as I haven't fully tested the old one yet, and got a cheap brushed and regulator from ebay uk.

Edited by Scooter (see edit history)
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I bought a replacement recently from ebay I think it was 183748814240 let me double check though (checked and yes it was this one, fitted to my 1993 RZ auto)......it was only just over £100 delivered and it's doing the job, I am repairing the original as a spare, as you'd think this one wasn't built as well given the price? (rebuilding bits will be around £100, I have got the rectifier I linked to as I haven't fully tested the old one yet, and got a cheap brushed and regulator from ebay uk.

 

Yes that looks like the rectifier pack you need, but I too couldnt find it here.

 

That replacement alternator looks a reasonable price to be honest and am very tempted myself. As my car has only covered about 3,000 in the past 5 years I would like to think it would be ok.

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That replacement alternator looks a reasonable price to be honest and am very tempted myself. As my car has only covered about 3,000 in the past 5 years I would like to think it would be ok.

 

That's what I thought after looking around and seeing them at £300 I thought I'd take a punt as a stop gap at least while I repair the other one........I can vouch that it worked, just not how long it'll last. The US rectifier one comes in at £60-70 with shipping etc so held off that for now....

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I think this is the one you need (states source was all I could find) it looks to have the bend you need that Shane had to modify his one to fit?

 

https://www.ebay.co.uk/itm/NEW-ALTERNATOR-RECTIFIER-FOR-TOYOTA-SUPRA-TURBO-AUTOMATIC-TRANS-101211-7120-100A/291658929740

 

 

Thanks for all the replies :)

 

I ordered this replacement part from California so will give it a go and see.

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  • 3 weeks later...

Just to update this, the rectifier only took a week to get to the UK, even with Easter inbetween. I got stung £22 for import fees though so consider this before ordering :(

 

It looked great and more importantly it fitted just fine. I've the alternator back in and so far so good it's doing everything it should be doing.

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