12V ABS ECU/Valve Assembly for Trailer Dollies
Eliminate the risk of sudden brake system pressure loss and dangerous trailer wheel lockups with this premium multi-piece 12V ABS ECU/Valve Assembly. Factory modulator valves dry out, experience internal electronic module failure, or suffer from pneumatic seal leaks over time due to constant road vibration and heavy service pressure, threatening your vehicle's safety on the highway. This high-performance heavy-duty brake control kit completely replaces your trailer’s failed factory electronic control unit and modulator core with a far more durable, long-term solution.
Constructed from premium high-grade impact-resistant polymers and precision-machined heavy-duty alloy valves, these chassis-mount assemblies handle extreme pneumatic air pressures and severe weather exposure without structural degradation. They effectively resist moisture intrusion, circuit shortages, and pressure drops during hard braking maneuvers. The optimized internal ports ensure rapid exhaust cycles and smooth fluid dynamics, while the pre-formed factory bolt-pattern housing guarantees a direct, drop-in installation without any secondary modifications or custom brackets required.
Complete Drivetrain Support Kit Includes:
Full set of high-durability electronic pneumatic control components (1x Premium Integrated 12V Electronic Control Unit and Air Brake Modulator Valve Assembly)
Factory-matched commercial-grade weather-sealed electrical pin connectors to defend internal circuits against dirt and road salt
Vehicle Fitment Guide:
Commercial Fleet Infrastructure: Custom-engineered exclusively for Trailer Dollies and Heavy-Duty Air Brake Trailers
Production Timeline Compatibility: Direct replacement for air-braked systems and fleets manufactured after March 1, 2001
Core Engineering Dimensions: Factory standard 12-Volt electrical system operating configuration
OEM Equivalent Part Numbers: Exact factory match for 4005001040, 4005001010, and S4005001010 (Cross-references: TTPTDAS4005001010G, 4005001010X, 22801004, 10008469, 599-7001, WAB4005001010)
Installation Note: Recommended for clean pneumatic line setups only. Before installing the new assembly, perform a manual system exhaust several times to completely clear out all dirt, moisture, and debris from the air paths to protect internal valving from structural damage.
