Alternative heater valve

[87GNSteve]

With the original design GM heater valves in the $40-45 range.
Many auto part companies listings show another "updated" plastic valve (pictured below left).
I was never a big fan of the original one with the external linkage and how the flash anodized finish would turn to corrosion in a short period.
The "updated" version fits Ok but I found another that fits better and works the same way. I have had this on my car for several years now and think it is safe to say it works.
The one on the left is the update the one on the right is from a 1971-1985 GM mostly Caddilac cars
ACDelco part number 15510 or four seasons 74603. They come in the same flash anodized metal or the black plastic versions. With the price ranging from $7-25.
The nice thing about the Cadillac valve is that it reduces the need for a section of curved hose if the valve is placed where the curve should be.

Pictured:
side by side of valves, hose size comparison of plastic valves, and a metal one installed on my car.

 

[1952ray]

Thanks Steve. Good info

 

[turbofrank]

good find.

 

[SHADOWII]

I'm w/you, I always hated that valve. Thanks for the info!

 

[Antbankstwo3]

Thanks for this! I have been working on mine the past few days. So is it easiest to get the Caddilac at GM? I have the current "updated" aftermarket one on now.

 

[87GNSteve]

Any parts store or online retailer will have the best prices.

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