Solenoid and regulator are on the same side. Includes gauge.

The Tramec Sloan Lift Axle Control Module

Ready for Installation! Tramec Sloan’s Lift Axle Control Module Reduces Parts by 50% Compared to Other Lift Axle Circuitries

Designed to Electronically Control the Raising and Lowering of a Lift Axle by Inflating & Deflating the Air Bags.The Module Incorporates a 4-Way Valve, Regulator, DOT Cartridge Push-In Fittings, Automatic Solenoid, and Air Gauge.
– Designed to Reduce Assembly Time & Errors Current Lift Axle Circuitries Present
– Features Protected Exhaust Ports
– Solenoid Rated for 9-16 VDC