Replacing Cooling System Hoses

[michbc3]

Does anyone have the part numbers for the upper and lower radiator hoses? Also, a source? Thanks, Bob

 

[Turbo87regal]

Don't think TTA specific hoses are available anywhere, but I have heard you might be able to use GN hoses with some trimming

 

[michbc3]

Thanks. I looked around some more since posting. The upper hose might still be available, but not the lower. On a turboBuick forum in the TTA section somebody said to use a GN lower hose and trim it - as you mentioned. I will order one and give it a shot. My lower hose definitely needs to be replaced - it's worn in one spot and could let go... I have an old Gates part number for the upper: 22957. If I find out more, I will post about it.

 

[michbc3]

Reporting back... I bought a new lower radiator hose for a 1987 Buick Grand National from O'Reilly Auto Parts. The part number on the receipt is GAT 21211 (Gates brand of course) and it only cost $16.99. Yes, it was not a direct fit, but after I cut 1" off of each end, it fit ok. I used a Kobalt PVC pipe cutter that I bought at Lowes which does a nice job.

I also ordered a different 1987 Buick Grand National lower radiator hose from Amazon which should arrive on Friday. If it looks like it will fit any better, I might still use it in the TTA. I also own a 1987 Buick Grand National, so no matter what, I can save it to use as a spare GN part.

As far as the upper TTA hose goes, I haven't looked very hard to find one. Don't really need it yet.

 

[pacecarta]

just get the gn upper hose and shorten the radiator end so the hose rests in the top plate holder

 

[michbc3]

Thanks for the tip. Good to know that the car isn't "antique" enough that you can't get or modify parts. Having commonality with Grand Nationals has bailed us out again.

 

[michbc3]

Received the Dayco 71756 Grand National lower radiator hose that I ordered from Amazon. Though I didn't try it, I think the Dayco is a closer fit (after trimming) for the TTA) than the Gates hose that I used. So I hope this information helps others.