Features: Upgrade your vehicle towing safety with this advanced Trailer Brake Controller featuring real time monitoring and 100ms responsive braking, delivering precise control for trailers up to 4,500kg. Engineered as a direct replacement with OEM fit precisions, this BL3Z 19H332 AA module combines high strength plastic and aluminum alloy, easy installation via ergonomic design. Ideal for owners, fleet managers, and professional in construction/agriculture requiring heavy load towing solution with enhanced stability. Confidently navigate mountain highways or job sites in extreme temperatures ( 40°C to +85°C) using its weather resistant construction and sealed connectors against moisture/dust. Outperforms generic controllers through rigorous durability testing, maintaining signals accuracy during trips while reducing wear through optimized heat dissipation channels. Specifications: Part number: BL3Z19H332AA, BL3Z2C006BB, BL3Z2C006BC Component: plastic+metal Package Includes: 1 Set Dashboard Mounted Trailer Brake Control Module note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.