This is a plastic plug for the warning light switch port on brake combination valves. It is white and sold individually. It is used to seal the warning light switch port on a combination valve, such as when the factory pressure differential warning light switch is removed or not used.
Spec Sheet: Allstar Spec Sheet
Compatibility
Fits the warning light switch port on brake combination valves. Sold individually.
FAQ
What is this part used for?
It plugs and seals the warning light switch port on a combination valve.
What is it made of?
Plastic.
What color is it?
White.
Is this a wrench?
No. Despite appearing in the Brake Bleeder Wrenches category, this part is a plug for the warning light switch port on combination valves, not a literal wrench.
Does it come with the combination valve?
No. It is sold individually as a separate component.

