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I need an in-dash vacuum control for the bi-level function for my F-100. The dash and a/c components are from a 1978 F-100. Have tried LMR and National Parts Depot. No luck. Thanks for any leads.
Look at the two following illustrations. In the first picture, is the part you're talking about basic p/n 18502 or19B888? If not, what part or you talking about.
Let me know the basic p/n and I'll see if I can locate it.
Click on the .pdf link to view the illustrations.
There are three different 18A318 vacuum motors, depending on the function code listed in the diagram.
Motor assy, vacuum control.
Function 1 or 2 D7TZ-18A318-A
Function 6 D3TZ-18A318-A
Function 7 D3TZ-18A318-B
I couldn't locate any of the first p/n
1 of the second, NOS Parts Source (913) 220-5746
1 of the third, Antique Auto Arlington (817) 275-2381
Thanks. I spoke with the Dennis Carpenter folk; I may have had an incorrect part number as they said they did not have it. I hope to retrieve the old one from the mechanic so I can get an accurate picture and part number. It's the vacuum actuator for the 'hi/lo' heater-ac control. There are 3 vacuum actuators behind the dash and apparently they are all different.
Thanks again.
Lower slide arm is the bigger switch of the 2. How many vacuum ports does your have, 8 or 9 ? And how man blades/fins on the elec connector 2 or 3? I might have one left in my parts shed. I can look this weekend.
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