‘93 4.3 oil adapter leak

[Jfavorito]

I believe my oil adapter is leaking on my 1993 k1500 4.3 v6. I am not able to find the correct adapter. Every place I have looked says “not for 4 wheel drive requiring angle adapter for oil cooler” any one know the correct part?


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[Supercharged111]

Any reason it can't just be the gasket?

 

[Jfavorito]

I figured if I’m taking it off, might as well replace it. I also want to replace the oil cooler lines. Not sure where the leak is coming from.


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[454cid]

I figured if I’m taking it off, might as well replace it. I also want to replace the oil cooler lines. Not sure where the leak is coming from.

Replacing the adapter would be a strange thing to do. It's not a wear part. Just replace the gasket. If it's like the adapter on the 454 it's just a big o-ring that can be gotten from the dealer. The small block adapter uses a paper gasket too.... not sure if that's available from the dealer. I think guys often by a Felpro kit.

The lines often leak... don't buy Dorman as they'll leak in a year or two. I removed mine completely after getting tired of leaking lines. I've considered buying Sunsong lines as they're supposed to be steel like the originals, instead of the aluminum that Dorman uses. AC Delco are available too, at least for my truck, but they're a lot more expensive.

You may have quick connects on the lines... probably ought to replace those, too.

 

[evilunclegrimace]

I figured if I’m taking it off, might as well replace it. I also want to replace the oil cooler lines. Not sure where the leak is coming from.


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Unless the adapter is damaged there is no reason to replace it. I have replaced the gaskets and lines on my '88 k3500 and '90 k1500 many times over the years. paper and rubber break down over time. The aluminum adapter will last you a life time.

 

[bowtie-72]

Unless the adapter is damaged there is no reason to replace it. I have replaced the gaskets and lines on my '88 k3500 and '90 k1500 many times over the years. paper and rubber break down over time. The aluminum adapter will last you a life time.

Make sure you go to the dealer to get the gasket kit. GM upgraded the replacement to a heavier o-ring. The aftermarket ones are “oem spec” like the substandard original.

 

[Jfavorito]

Thanks for the advice, I’ll let you know how it all goes


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[L31MaxExpress]

Make sure you go to the dealer to get the gasket kit. GM upgraded the replacement to a heavier o-ring. The aftermarket ones are “oem spec” like the substandard original.

Not necessarily. Mine had a hairline fracture and was weeping oil out of it. Procured another one for something like $5 at the treasure yard, cleaned it thoroughly inside and out and been good since.