The Fortpro Rear Axle ABS Relay Emergency Valve Assembly is engineered as a replacement for WABCO 4725001200, 4721950760, and 4721950770 modulator packages. Designed for heavy-duty tractor rear axles and trailers, this 12V 4S/4M package combines a service brake relay valve with two ABS modulating valves. Built from metal alloy with IP66/IP69K protection, it features a 4.0 psi crack pressure and NPTF ports. Compatible with ECU versions C, D, and E for safety.
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Basic Part Information5 attributes
| Product Line | Brakes |
|---|---|
| Category Name | Air Brake Valves |
| Part Type | ABS Relay Valve |
| Alternate Part Name | ABS Valve Modulator Package, ABS Axle Package, Rear ABS Valve Modulator, ABS Modulator Relay Valve |
| OEM Part Number | 4725001200 |
Application/Fitment Attributes11 attributes
| ABS System Configuration | 4S/4M |
|---|---|
| Application Type | Heavy Duty Truck, Trailer |
| Mounting Location | Rear Axle |
| Port 1 Thread Size | 1/2 - 14 NPTF |
| Port 2 Thread Size | 3/8 - 18 NTPF |
| Port 2.1 Thread Size | 1/2 - 14 NPTF |
| Port 2.2 Thread Size | 1/2 - 14 NPTF |
| Port 3 Thread Size | Exhaust |
| Port 4 Thread Size | "1/4"" - 18 Dry Seal NPTF" |
| Ports Thread Type | NPTF (Dry Seal) |
| Replaces Valve Models | 472 195 076 0 ABS Modulator valve, 472 195 077 0 ABS Modulator valve |
Dimensional/Physical Attributes1 attribute
| Material | Metal Alloy |
|---|
Technical/Performance Attributes9 attributes
| Crack Pressure | 4.0 psi |
|---|---|
| Electrical Connector Type | DIN 72585-A1-3.1-Sn/K1 |
| Harness Connector Type | Bayonet-Style |
| Ingress Protection Rating (IP Code) | IP66, IP69K |
| Maximum Operating Pressure | 11.0 bar |
| Operating Temperature Range | -40 deg. C to +80 deg. C |
| Operating Voltage | 12 V |
| Response Pressure | 0.28 bar |
| Valve Function Type | Entire Package |
Packaging / Logistics Attributes:1 attribute
| Net Weight | 5.3 lb. |
|---|
Intended Application
- ABS valve package for Tractor rear axle. Service brake relay valve with two ABS modulating valves.
- Compatible with ECU versions C, D and E.
- Freightliner: TDAS4725001200
- Kenworth: S472-500-120-0
- Mack: S4725001200, 6300-4725001200