The PPE Coolant Overflow Tank will hold up to one gallon of coolant and the hand-cut aluminum material provides more efficient cooling properties. The tank replaces the location of your secondary battery and plastic water overflow tank. Used in conjunction with Battery Remount Tray, it features a 3/8-inch NPT to 1/2-inch brass hose barb, 3/4-inch NPT to 1-inch brass hose barb, billet fill neck with overflow and Stant Lev-R-Vent cap.
(www.ppediesel.com/714-985-4825)