Dongfeng KL truck parts ECAS height sensor assembly C3629610-TL990

As the core feedback component of the ECAS system, this sensor delivers exceptional detection accuracy to maintain optimal suspension height. It adopts a non-contact Hall-effect sensing principle, converting mechanical displacement into electrical signals with a resolution of 0.1mm and linearity error ≤±0.5%. When the truck is loaded/unloaded (load variation 0-40 tons), it responds within 10ms to transmit height data to the ECAS controller, enabling the system to adjust air spring pressure and keep the chassis height consistent (±2mm). This prevents uneven tire wear, reduces aerodynamic drag (saving 3% fuel), and ensures stable alignment of the fifth wheel for efficient trailer coupling

Engineered for long-term reliability in harsh under-vehicle environments, the C3629610-TL990 sensor features a durable construction. The housing is made of glass fiber-reinforced PA66 (GF30) with a 3mm wall thickness, achieving impact resistance of 50J (ASTM D256) and operating temperature range of -40℃ to 120℃. The sensor shaft uses 45# steel with hard chrome plating (HRC 55-60), resisting wear even after 1,000,000 cycles of rotation. The internal circuit board is coated with conformal coating (IPC-CC-830) to resist moisture and oil mist, while the connector (IP6K9K rating) uses nitrile rubber seals to block water and dust ingress—passing 2000-hour salt spray testing (ASTM B117) without performance degradation

Optimized to avoid signal interference in complex vehicle electrical environments, the sensor integrates advanced anti-jamming technologies. Its output signal (0.5-4.5V analog signal) is filtered via a built-in EMI filter, reducing electromagnetic interference (EMI) from the engine ECU and ABS system by 80% (complying with CISPR 25 Class 3). The signal wire uses twisted-pair shielding (aluminum foil + tinned copper braid) to prevent external interference, ensuring stable data transmission even in high-voltage environments. A built-in over-voltage protection module (16V max) and reverse polarity protection prevent damage from electrical anomalies, reducing sensor failure rate by 65% compared to generic alternatives

This ECAS height sensor assembly is designed for efficient installation and long-term cost savings for Dongfeng KL operators. The pre-assembled structure (sensor + mounting bracket + fixing bolts + wiring harness) allows a single technician to complete replacement in 30 minutes using only a socket wrench—no calibration tools required (factory pre-calibrated). The OE-compatible design eliminates fitment issues of aftermarket sensors, which often cause ECAS system malfunctions (e.g., incorrect suspension height) leading to repair costs up to $1,200. Its durable components extend service life to ≥600,000km—twice that of non-OE sensors. Backed by a 2-year/300,000km Dongfeng warranty, it ensures reliable ECAS performance and predictable maintenance expenses for fleets