1998 S70 Oil Cooler Lines 3528201 3528207

98S70T5 · Post by **98S70T5** » 17 Jan 2019, 07:17

Does anyone know which side is supply and which side is return? I have one that someone did a crappy patch job on years ago I want to replace before it becomes and issue.

Thanks,

98S70T5 · Post by **98S70T5** » 17 Jan 2019, 11:38

Scratch that, I see with some research they are connected together via a bracket. Probably makes more sense to replace together.

Thanks,

Post by **erikv11** » 17 Jan 2019, 18:46

Together is smart, yes. Kind of an awful job but good luck!

Post by **abscate** » 18 Jan 2019, 03:50

If you buy them new please put part numbers into this thread for search

98S70T5 · Post by **98S70T5** » 18 Jan 2019, 06:44

Will do, There must be some pin holes in the lower hard line on mine. When I first picked this up from my Grandpa I noticed a small drip spot on the ground. Closer inspection showed someone had slipped some rubber hose over the line itself at some point in time and used 2 hose clamps on each end of the hose. I tightened those up and no leaks now (it's been that way for the last 13 years at least).

I will just feel better about long highway trips with fresh lines so I don't evacuate all of my oil in a short amount of time if it should fail.

Post by **abscate** » 18 Jan 2019, 11:11

Part numbers added to title

Ouch $125 each!

** Don't forget the Orings - both at transmission and at radiator - several pieces.

Closer inspection showed someone had slipped some rubber hose over the line itself at some point in time and used 2 hose clamps on each end of the hose.

Thats the kind of repair that leads to blown engines

98S70T5 · Post by **98S70T5** » 18 Jan 2019, 11:16

Yikes, thanks for the part numbers.

The aftermarket ones are reasonable but it looks like they don't have the bracket (or maybe that bracket comes off of the factory parts?).

I guess that hose has held well for a very long time though.

Post by **erikv11** » 19 Jan 2019, 07:29

Aftermarket (e.g. Dorman) is known to be very low quality on this part. The usual way to save a bundle of money on this job is to just get the lines rebuilt at a hydraulic shop but that assumes the hard line section is good.