Heating valve

Tip!

Be careful not to damage the pipes to the heating valve when you unscrew your old valve.
If your old heating valve is to be approved as a replacement, you must not break it, take it apart or damage it in any other way. We have to approve it as renovable. In addition, it must be a Cadillac original heater valve that is marked Ranco or Harrison that you return, it must look exactly like the one in the picture below. Keep in mind that the heating valve may have been replaced 20-30 years ago with a pirate valve, if it is a pirate heating valve we will not replace your old one either. If you are unsure, contact us before ordering.
Don't forget to install the new O-Ring that seals between the heating package and the heating valve.
Change the coolant every 5 years, the rust protection becomes worse with old coolant. You should have a mixture of 50-60% glycol and you raise the boiling point, then you also have good rust protection. Many engines and water pumps rust from the inside just because you try to save on the glycol, and not least you avoid a frozen engine block. The garage where the car is parked over the winter can be without electricity and heat. Every spring we get phone calls from customers with frozen engine blocks.