Rear heater shutoff valve

[Bananjer]

Hey there,
Do any of you know if these are the valves to shutoff flow to the rear heater?

[CMORGANSKOOL]

I don't know if it's a factory option. Mine has a valve that looks like an outside spigot that you can turn to close for the rear and one for the front heater. It's pretty easy to cut and install one.

[Bananjer]

I was wondering if the ones in the pictures are the cutoffs. I added a better picture. Thanks

[Ciscokid]

If you follow your water lines back from your external pump to feed your back heater it will lead you to the valve

[CMORGANSKOOL]

Just don’t turn them off and overheat your bus. You have to loop the line in most cases because the heat loop is a return line for the coolant.

[somewhereinusa]

Originally Posted by CMORGANSKOOL

Just don’t turn them off and overheat your bus. You have to loop the line in most cases because the heat loop is a return line for the coolant.

Having them closed will not make the engine overheat. The loop is only needed if you want any of the original heaters/defroster to operate.

Do any of you know if these are the valves to shutoff flow to the rear heater?

Those valves may be for the rear heater or may shut off all of the heaters.