The most up to date coolant level sensor for the Rocky Mountain Westy aluminum expansion tank. One of the best upgrades you can do for your Vanagon's cooling system, the tank is available here.
Use either Loctite 545 or thread tape when installing.
Ref ID: RMW-ALTS
There are two wires going to the stock coolant level sensor plug: a positive (usually green) and a ground (usually brown). We supply new terminals with the tank. Carefully strip the ends of the stock wires and crimp the spade connector to the positive terminal and the ring connector to the ground wire. The positive wire will run to the level sensor contact and the ground wire ring terminal will attach to the tank bracket via the mounting screw. Fill and bleed the cooling system as per the Bentley manual.