Transmission cooling line leak

[tom4bren]

That part should not be Isuzu specific. It looks like a fairly common part. Any transmission shop in your area should be able to get you one.

[Y33TREKker]

Any cross-referencing by local shops could also be done using the GM-4L30E Four speed automatic as a starting point.

[tom4bren]

You could contact one of the guys who have done the 5sp swap. Those lines would've been removed in the process.

There's an Isuzu truck shop in my area. Lemme know if you strike out elsewhere & need me to check.

I assume that you need the fitting only. In the pic it looks like it's threaded on one end & a hose fitting on the other. I'm curious how/why that piece started leaking ... not a high failure rate item.

If it's just the hose leaking, you should be able to find a generic hose that'll work. Or, you can cut off the last 1/2 inch of the hose, then put it back in place and use a better hose clamp.