HELP regarding heater control box cable

[pooder]

I am planning to replace the heater control box cable and cable guides on my '87 911 that has auto heat. I believe that the auto heat has only one looped cable that controls both R and L from the servo motor, but PP only shows a cable that specifies that 2 are required suggesting that this is not the correct part #. Sales at PP was unable to provide a definitive answer as was my local Porsche dealer. The cable guides part # is not a problem, but any help with the cable part # will be appreciated.

Peter

[kuehl]

If you look at the parts diagram; if you don't have a PET program you can download your car's parts diagrams here:
PET
there are 2 cable part numbers listed for the 1987, and 2 cables are required per the PET:
911-424-701-07, or
911-424-701-01 if you have an M637 option car.

You could open up the console and inspect the cable(s) to insure this.

Other helpful links on the heating:
The Mysteries of Porsche 911 Auto Heat
http://forums.pelicanparts.com/911-930-turbo-super-charging-forum/844594-no-heat-930-questions-2.html#post8425122
Automatic heating system - Porsche 911 1984 1989 - Porsche Archives

[pooder]

Thanks for you reply. PP sales does believe that the cable for the auto heat is a single looped cable which I have confirmed by opening up the console, but there is no different part # listed other than the cable where "2 are required". Nothing helpful in Porsche's car parts diagram.

[kuehl]

Inquire about PN 911-424-701-02

[javadog]

Auto heat uses one looped cable, not two.

JR

[javadog]

Try 91142470108

[pooder]

Thanks for your help.
Will follow up with your suggestions.

[pooder]

F/U
911-424-701-02 auto heat single looped cable that is designated for '78-'86, but I am unaware that there was any difference in auto heat in '87' Cost $12 (O.E.M) $28 (genuine Porsche)

911-424-701-08 long looped cable designated for '87-89, but cost is $60 (genuine Porsche)

I am going to order the $12 cable believing it will also work on my '87.

Thanks again. You guys found what PP and Porsche couldn't.