The Midland Haldex AQ963011 is a 4-sensor/2-modulator (4S/2M) ABS retrofit kit designed for tandem axle applications. It pairs a 2-port Full-Function ABS (FFABS) valve with spring brake priority and a 2-port ABS relay valve, governed by a PLC Select 2M ECU (ECU/Valve Number N9004BB) at 12 volts. Port sizing is 3/8" at the control port (with filter), delivery ports, spring brake port, and supply port (with filter); the reservoir accepts a 1/2" or 3/4" dual nipple. The kit includes sensor extensions (2.5M and 1.5M), a 2M valve cable, hose clips, grip cable, and a warning label. Marketed as a primarily competitive change-out, this kit lets technicians upgrade or replace an existing ABS system without sourcing a separate spring brake control valve. Call us to confirm proper fit for your application.
Features
4S/2M kit designed for tandem axle ABS retrofit and competitive change-out
FFABS valve with spring brake priority eliminates the need for a separate spring brake control valve
2-port ABS relay valve included
PLC Select 2M ECU design (ECU/Valve Number N9004BB), 12V
All ports sized at 3/8"; reservoir accepts 1/2" or 3/4" dual nipple
Kit includes 2.5M and 1.5M sensor extensions, 2M valve cable, hose clips, grip cable, and warning label
Tech Specs
- ECU/Valve Number: N9004BB
- ECU Design: PLC Select 2M
- Voltage: 12V
- Valve Type: FFABS (Full-Function ABS) with Spring Brake Priority & ABS Relay Valve
- Configuration: 4-Sensor / 2-Modulator (4S/2M), Tandem Axle
- FFABS Valve: 2-Port, Spring Brake Priority
- ABS Relay Valve: 2-Port
- Reservoir Port: 1/2" / 3/4" Dual Nipple
- Control Port: 3/8" (1 port) with Filter
- Supply Port: 3/8" (1 port) with Filter
- Delivery Port: 3/8" (2 ports)
- Spring Brake Port: 3/8" (4 ports)
- Kit Contents: 2-Port FFABS Valve, 2-Port ABS Relay Valve, 2.5M Sensor Extension, 1.5M Sensor Extension, 2M Valve Cable, Hose Clips, Grip Cable, Warning Label
