Dongfeng GX ABS trailer cable socket assembly 3730020-T38H0

The socket is designed to support dual functions critical for trailer ABS operation: ABS signal transmission (e.g., wheel speed sensor data, brake pressure signals) and auxiliary power supply (for trailer ABS module). Its internal pins are made of high-conductivity tinned copper (cross-sectional area: 0.8-1.2 mm² for signal pins, 2.5 mm² for power pins) to ensure low contact resistance (≤30mΩ) and stable signal flow. The pin layout follows Dongfeng’s ABS wiring standard (e.g., specific pins assigned to speed signals, ground, and power), preventing cross-interference and ensuring the trailer ABS system responds quickly to the vehicle’s brake commands

The assembly meets IP68 waterproof and dustproof standards—the highest level for automotive exterior components—making it suitable for trailer use in harsh environments. The socket housing (made of high-impact PBT plastic) features a double-seal structure: a silicone O-ring between the socket body and mounting base, and a rubber gasket around the cable entry port. It can withstand 1-meter deep water immersion for 30 minutes without leakage, and blocks dust, mud, and road salt from entering the internal circuit. This protection prevents short circuits or corrosion of pins, ensuring reliable ABS operation in rain, snow, or off-road conditions

The socket housing is reinforced with glass fiber (GF content: 20%) to resist deformation from trailer vibration (frequency: 10-500 Hz) and minor impacts during coupling/uncoupling. The contact pins are plated with nickel-silver alloy (plating thickness: ≥5μm) for excellent wear resistance—supporting over 500 mating cycles (connecting/disconnecting the trailer cable) without performance degradation. Additionally, the socket’s mating surface is treated with anti-scratch coating, preventing damage from frequent plug insertion and ensuring a tight seal even after long-term use

The socket adopts a bolt-fixed mounting design: it is secured to the Dongfeng GX’s rear frame or trailer hitch with 2-4 M6 stainless steel bolts (matching original thread positions), requiring only a wrench for installation—no drilling needed. The socket also features a mechanical locking mechanism (e.g., twist-lock or push-to-lock) that secures the trailer cable plug in place, preventing accidental disconnection due to road vibration or trailer sway. A built-in dust cap (attached via a flexible strap) protects the socket from debris when not in use, and the entire installation process can be completed in 15-20 minutes