voltage regulator for a 1978 FJ40 (1 Viewer)

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I am trying to find a replacement voltage regulator for my 1978 FJ40 which was built in October of 1977. It has a solid state voltage regulator made by TRANSPO number IN568. I would like to replace both the alternator (Nippondenso 27020-61013) and the voltage regulator at the same time. I am having a hard time finding a solid state external regulator with the appropriate green plug etc. My research has turned up a Wagner built one (WO95-10) but, upon calling Wagner learned that they have discontinued the part. Any help would be very much appreciated.
 
Study the connector on the regulator closely - in '77 and '78, the voltage regulators changed dramatically. If Matt has it, it will be an OEM Toyota part, not an aftermarket one. My 7/78 FJ40 has the larger plug version with more pins than the earlier style.
 
I have a 2/79 fj40 with an external voltage regulator. @ToyotaMatt at VintageTEQ had what I was looking for. I just received my order.

3-wire green plug alternator 27020-61100
Large green oval plug Voltage regulator 27700-54040-84

Only observable differences are the cases are a little different and the location of the capacitor changed from the voltage regulator to on the alternator.

ALTERNATOER 27020-61100.jpg

OE ALTERNATOR.jpg
VOLTAGE REGULATOR.jpg
 
Last edited:
I have a 2/79 fj40 with an external voltage regulator. @ToyotaMatt at VintageTEQ had what I was looking for. I just received my order.

3-wire green plug alternator 27020-61100
Large green oval plug Voltage regulator 27700-54040-84

Only observable differences are the cases are a little different and the location of the capacitor changed from the voltage regulator to on the alternator.

View attachment 2744830
View attachment 2744831View attachment 2744832
Thanks a ton!
 
I am trying to find a replacement voltage regulator for my 1978 FJ40 which was built in October of 1977. It has a solid state voltage regulator made by TRANSPO number IN568. I would like to replace both the alternator (Nippondenso 27020-61013) and the voltage regulator at the same time. I am having a hard time finding a solid state external regulator with the appropriate green plug etc. My research has turned up a Wagner built one (WO95-10) but, upon calling Wagner learned that they have discontinued the part. Any help would be very much appreciated.
I have on I will sell for $15 plus shipping. It is correct solid state regulator in working condition. You will need to put your connecter on the color coded wires. Just let me know....Beckley
 
I am sorry for the bad and confusing repllies you may have gotten from me. I have a solid state 1978 voltage regulator I sell you cheap if you are interested. Beckley
 
thank you so much! I just ordered a voltage regulator and alternator from Neil so I think my problems are solved. I will keep your contact information if things don't work out. thanks again, I can't tell you how much I appreciate your support and offer to help me out, thanks again.
 
thank you so much! I just ordered a voltage regulator and alternator from Neil so I think my problems are solved. I will keep your contact information if things don't work out. thanks again, I can't tell you how much I appreciate your support and offer to help me out, thanks again.
 
For clarification:
5/'78 to 7/'80 FJ40 uses 27700-24020-84 voltage regulator
8/'76 to 4/'78 FJ40 uses 27700-60100 voltage regulator

The 27700-24020-84 voltage regulator is still available from Toyota dealerships.
The 27700-60100 voltage regulator is discontinued and very hard to find.
 

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