Dongfeng xinjiang truck parts Configuring the cab floor harness assembly 3727805-C3800-01

Built for personalized cab function expansion, this harness assembly features a modular configurable design that accommodates custom equipment installations. It includes 10 detachable branch circuits (each with color-coded wires and labeled connectors) that can be added, removed, or adjusted to support aftermarket accessories—such as heated seats, under-floor storage locks, or cab air purification systems. The main harness backbone uses a split PVC sleeve with zip ties, allowing easy access to internal wires for reconfiguration without cutting or splicing the core circuit. Each branch is marked with clear identifiers (e.g., “Seat Heat Power,” “Storage Lock Signal”) for quick matching to custom devices. Additionally, the harness supports dual voltage inputs (12V/24V), making it compatible with both standard and upgraded cab electrical components. This flexibility eliminates the need for custom harness fabrication, reducing modification time by 60% for Dongfeng Xinjiang truck operators

Engineered to withstand the harsh conditions of cab floors—including foot traffic pressure, dust, spilled liquids, and temperature fluctuations—the harness assembly features comprehensive protective layers. The outer sheath is made of flame-retardant PVC (UL94 V-0 rating) with a thickness of 1.5mm, resisting oil, grease, and abrasion from cab floor mats or equipment. Internal wires are insulated with cross-linked polyethylene (XLPE), offering excellent electrical insulation and resistance to thermal degradation (operating temperature range: -40℃ to 105℃). All connectors are IP67-sealed, blocking dust and water intrusion even if liquids spill on the cab floor. The harness is also reinforced with abrasion-resistant fabric tape at high-pressure points (e.g., under seat rails, near door sills), preventing wire wear from repeated foot pressure. These protections ensure the harness maintains electrical integrity for over 8 years, reducing downtime from short circuits or connector failures

Designed to deliver consistent signal and power transmission for cab electrical components, the harness assembly uses high-conductivity oxygen-free copper (OFC) wires with low resistance (≤0.01Ω/m for 1.0mm² wire). This minimizes voltage drop and signal interference, ensuring reliable operation of sensitive components like seat adjustment motors or floor heating controllers. Signal wires are twisted in pairs (twist rate: 10 twists/m) to reduce electromagnetic interference (EMI) from the truck’s engine or radio systems, preventing false signals or component malfunctions. Terminal crimps are precision-controlled (crimp force: 90-110N) to ensure tight connections, avoiding intermittent contact from cab vibrations. Additionally, the harness includes inline fuses (5-20A) and thermal protectors for power branches, shielding high-current components from overheating. This stable transmission guarantees cab functions operate flawlessly, even during long-haul trips or off-road driving

Designed for user-friendly installation, the harness assembly features a plug-and-play design with pre-assembled connectors and mounting clips. All connectors are keyed to prevent reverse insertion, and the harness is pre-routed with labeled branches that match the cab floor’s wire channels—eliminating the need for on-site wire mapping. The package includes 15 high-strength plastic mounting clips (compatible with the cab floor’s pre-drilled holes) and a installation guide with step-by-step diagrams. Installation steps are straightforward: lay the harness along the cab floor’s routing channel, secure it with clips, plug in the connectors to the cab’s electrical interfaces and chassis circuits, and test for function. A professional technician can complete installation in 60 minutes or less, avoiding time-consuming wire splicing or configuration. For repair shops or truck operators, this easy installation design reduces labor costs and minimizes cab downtime—critical for commercial trucks relying on daily transportation