For Big Rig Commercial Trucks.Functions as a Standard Relay and Proportioning Valve.4 Port Delivery.Weight Approximate: 2.5 lbs.OEM Part # 065145Mounting Bracket IncludedTechnical Specifications:Supply: 1/2"Delivery: 2 @ 3/8" FPT Side, 2 @ 3/8" FPT BottomControl: 1/8"Service: 1/4"Crack Pressure: 4.0 PSIComes with Safety Caps to Protect the Threads and Mechanism prior Installation.No Core Charge.Warranty 12 MonthsMay also Work as a Replacement for Part: 10817, 65145, 106929, 107630, 107945, 108298, 108504, 108777, 108940, 109042, 109104, 109104, 802677, 802797, 3081426, 3945988, 5002112, 5002113, 5002187, 15555804, 15635925, 065145N, 108504x, 109042x, 109104x, 1619734C91, 2000421C91, 2003978C91, 20QE41083M3, 20QE41083M4, 20QE4108M2, 20QE4108M4, 3508845C91, F2HZ2A449A, F3HT2A449AA, SC517.