Description: 【Part Replacement】: This trailer brake controller carries official part number ML3Z-19H332-AB, ensuring great compatibility and reliable performance as a direct replacement for Ford F-150 21-23 【Enhanced Towing Safety】: This brake controller provides precise and proportional braking power to your trailer, significantly improving stopping stability and control when hauling heavy loads, making it great for safe towing experiences 【Easy Plug And Play Installation】: Designed for straightforward installation, this unit connects directly to your vehicle's existing wiring harness, no more complicated wiring modifications or professional installation costs for most vehicle owners 【Sturdy And Reliable Construction】: Built with quality components and designed to withstand rigorous towing conditions, this brake controller offers sturdy durability that ensures consistent performance trip after trip 【Ideal For Frequent Towers】: This trailer brake controller is compatible for various towing applications including boat trailers, utility trailers, and camping trailers, making it great for homeowners, contractors, and outdoor enthusiasts Specification: Material: PP, Metal Part Number: ML3Z-19H332-AB Compatible: for Ford F-150 21-23 Package Includes: 1 Trailer Brake Controller Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.