Heater valve
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Cross-Country
Joined: Aug 2015
Posts: 85
Likes: 9
From: san diego, california
Heater valve
1974 F250 with factory air conditioning. I need to buy a heater valve for the heater hose. The actuator has 2 air fittings, so far the only ones I can find are for the later style with one fitting. Is it possible to use the single fitting style by connecting it to the correct hose and plugging the extra?
Laughing Gas
Joined: Nov 2013
Posts: 1,207
Likes: 60
From: S.E. Louisiana;so far USA
1974 F250 with factory air conditioning. I need to buy a heater valve for the heater hose. The actuator has 2 air fittings, so far the only ones I can find are for the later style with one fitting. Is it possible to use the single fitting style by connecting it to the correct hose and plugging the extra?
Cargo Master
Joined: Jul 2005
Posts: 2,313
Likes: 367
From: Kansas
here's one D0DZ-18495-A, but it is in Canada...
https://www.ebay.com/itm/1970-1974-M...-/283892714423
https://www.ebay.com/itm/1970-1974-M...-/283892714423
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
Valve assy., heater water control
Fits: 73-74 F100-350 w/ integral A/C before s/n U40,001
D0DZ-18495-A
Dennis Carpenter, Concord, NC shows 5 in stock (704) 786-8139
Fits: 73-74 F100-350 w/ integral A/C before s/n U40,001
D0DZ-18495-A
Dennis Carpenter, Concord, NC shows 5 in stock (704) 786-8139
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Cross-Country
Joined: Aug 2015
Posts: 85
Likes: 9
From: san diego, california
Thanks for the diagram, it looks like they modulate the water flow to control the temperature. It must have been less than optimum because the change to single port valve later. I think I have a 1975 HVAC control panel. i will locate it and see if it will swap out.
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Joined: Nov 2006
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From: Simi Valley, CA
1974 F250 with factory air conditioning. I need to buy a heater valve for the heater hose. The actuator has 2 air fittings, so far the only ones I can find are for the later style with one fitting. Is it possible to use the single fitting style by connecting it to the correct hose and plugging the extra?
It's spliced into the heater hose on the right rear of the engine compartment.
D4AZ-18495-A (replaced D1AZ-18495-A) .. Vacuum Controlled Heater Water Valve - Use with factory installed integral A/C (Motorcraft YG-136) / AVAILABLE from Ford & auto parts stores.
1973/79 F100/350 // 1975/91 E100/350// 1978/79 Bronco // 1971/79 Misc FoMoCo Passenger Cars // 1986 Taurus/Sable
This valve has been a notorious POS since day one. It gets stuck in the open or partially open or closed or partially closed position.
2nd Gear
Joined: Oct 2024
Posts: 2
Likes: 0
Answers???
Why can’t anyone just give an answer to peoples questions on here!?!? CAN YOU USE AN AFTERMARKET VALVE W ONLY 1 VACUUM LINE IN OR NOT? And HOW DO YOU HOOK IT UP?ALSO WHY DO THEY NOT MAKE PARTS ANYMORE THAT JUST INSTALL SAME AS BEFORE?!?!
Last edited by Kfreeman; Feb 8, 2025 at 12:38 PM.
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