Thread: 4bd1 alternator

If you intend running a Tacho (or already have one), you will need an Alternator with a "Stator Phase sensor", or more usually known as a "W" Terminal.


The non-tacho Alternator will have 2 terminals and a post on the plug, while the Tacho type will have 3 terminals and a post. All is not lost if you have the non-Tacho Alt as an Auto Electrician can wire one in fairly easily, but if you're still at the buying stage it makes sense to get it right first time.


I can't say for certain about the County but the Perentie has a non-tacho Alt with 2 terminals, but the Harness plug has 3 wire terminals in the plug, making it easy and straightforward to swap in a Tacho Alt and fit a Tacho.


I fitted a Tacho to my Perentie, and it cost me $80 to have the "W" Terminal added to the original Alternator.

Thanks 303gunner. My girls a old 85 county so no tacho but have been thinking about wiring one up.
I am still in the buying phase so I will defiantly look out for the third terminal.

I generally go to a local Isuzu dealer for engine parts.

How much was the AEA 120A alternator? Last time I priced one it was around $700

Adding a W wire is pretty easy DIY task if you want to.

Steve

$627 was the quote SteveG and was all inclusive but was pick up in Perth. It has the vac pump but not sure about the w plug going in tomorrow arvo to go hands on and suss it out.
Luckily my father in law is a sparky which makes wiring easy and cheep.

On another note I saw on here a step by step install of a alternator on a 4bd1 but can't seem to find it any more. Any one know where I can find it?

Went in today and picked up the new alternator. Only a 2 plug so no w terminal. The guy who quoted me must of stuffed up as the normal retail is $850 ish. But they did honour the original quote of $627 inc gst.
Now just the task of install and wiring up

This may have been the link you were looking for...


http://www.aulro.com/afvb/1906211-post18.html


Half my problem was finding a replacement pulley, should have been easy but it wasn't. Good luck!


Pete

Originally Posted by Hammerhead

Went in today and picked up the new alternator. Only a 2 plug so no w terminal. The guy who quoted me must of stuffed up as the normal retail is $850 ish. But they did honour the original quote of $627 inc gst.
Now just the task of install and wiring up

My alternator on my Isuzu, died it had a hitachi, followes the numbers and it cross referenced to a td42 Nissan patrol. The only difference was the pulley, 2 minutes to swap it over. Best part, cost was $250, normally $350. 70amp output and with vaccumm pump.