Description
GENUINE WABCO ABS ECU VALVE ASSEMBLY 2S/2M 4S/2M 4S/3M
PART NUMBER(S):
Fleet Products: S 4005001030 (New) | OE: WABCO 4005001030 , 4005001037, 4465001030, S4005001030 | Meritor S4005001030, S4005001037, R955320, R955321 | Haldex S-26298 | Vanguard 1ABS000013 | Great Dane 40502933 | Manac 22801002 | Stoughton 46040401400 | Utility Trailer 393500075 | Automann 170.S4005001030OE | Other: MERS4005001030, APS02465P
DESCRIPTION:
Model: Original Wabco TCS II Premium Trailer Control System
Vehicles: Trailers equipped with WABCO ABS systems and standard trailers manufactured after March 1st 2001
- Voltage: 12V
- Max Operating Pressure: 13 bar (188.5 psi)
- ABS Configurations: 2S/2M, 4S/2M, 4S/3M
- Ingress Protection: IP66 (dust-tight, water-resistant)
- Temperature Range: -40°C to +65°C
- Control Port: 1/4"-18 NPT
- Delivery Ports: (4) 3/8"-18 NPT
- Supply Ports: (2) 3/4"-14 NPT
- Thread Type: NPTF dry seal
Applications:
Integrated ABS ECU and modulator valve for heavy-duty trailers. Supports multiple ABS configurations and provides wheel speed control, braking modulation, and system diagnostics in a single assembly.
CROSS-REFERENCE(S):
S4005001030, TDAS4005001030, 167214, 40502933, AB84017, 10008471, S400-500-103-0, 6300-4005001030, 228-01002, 24900142, 50607, 3-9350-075, 3-9359-075, 393500075, 2S4005001030, WAB4005001030, 4005001030, 400 500 103 0, 4005001039, RWW4005001030, 1ABS00013, 2ABS00013, APS02465P, 352010, GEN2-1031, WN4005001030, 170.S4005001030OE, S400-500-103-0, S4005001030, 4465001030, 00 612 010 0, 4006120100, S-26298, 472 500 012 0, 4725000120, 4725000120, S26298, R955320, 4005001030, R955316, S4005001030, 400 500 103 0, R955321, 472 500 012 0, S4725000120, 02137500, 4725000010, S4725000010, S472 500 001 0
A cross-reference listing means this part is a suitable replacement for the part numbers listed. Please confirm all ports and dimensions match your application before installing.
IMPORTANT INSTALLATION NOTES:
✔ Mount on the air tank using a 3/4" Schedule 80 hex nipple or on the frame using Grade 8 hardware.
✔ Ensure the exhaust port faces downward and plug all unused ports with approved thread sealant.
✔ Use 5/8" O.D. minimum supply tubing and secure all air line connections.
✔ Route sensor and power cables with adequate strain relief; avoid tight bends and overtightened tie wraps.
✔ Secure cables every 8–18" and leave sufficient slack for suspension movement.
✔ Perform end-of-line ABS testing after installation and verify proper sensor orientation and ABS indicator lamp operation.
Warranty Information
Reviews
1 Review
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Top quality WABCO part
My ABS warning kept coming on due to a bad ECU valve block. Swapped in this new Wabco S4005001030 and everything synced instantly. Air system response is smoother now, and modulator cycles cleanly during brake test. Fleet Products shipped fast, and came sooner than expected. Great experience overall.