PN#034114  SKU#17150  Height Control Valve. Ports: 1/4″ NPT. Standard Chassis Leveling Valve Used with Volvo/Mack Chassis. Valves feature patent Shear-Seal® design technology. Superior performance in high cycle and contaminated air conditions. Precision machined metal sealing surface creates a zero leak (less than 4CC per minute). Increased life expectancy and lower air consumption. Direct replacement for many OE valve installations.