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3774010-C0401 DONGFENG Parts Combination Switch Assembly

The 3774010-C0401 Combination Switch Assembly is a high-performance, multi-functional control unit designed for installation on the steering column of commercial and heavy-duty vehicles. This switch integrates essential driver controls into a single compact module, enabling convenient operation of turn signals, headlight beams (high/low), windshield wipers, washers, and horn functions. Built to meet strict OEM specifications, this assembly ensures reliable electrical connectivity, precise mechanical action, and long-term durability under harsh operating conditions.

Engineered for direct replacement, the 3774010-C0401 is widely used in trucks, buses, and special-purpose vehicles, offering plug-and-play compatibility with original wiring harnesses and vehicle systems. It delivers smooth actuation, clear feedback, and stable performance across diverse environmental conditions.
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  • 3774010-C0401

  • Dongfeng

Attribute Specification
Part Number 3774010-C0401
Product Name Combination Switch Assembly
Manufacturer Dongfeng (Original Equipment)
Application Type Heavy-Duty Commercial Vehicles (Trucks & Buses)
Installation Position Steering Column (Below Steering Wheel), Driver’s Side
Drive Configuration Right-Hand Drive (RHD) – Specific to this variant
Primary Functions - Headlight On/Off & High/Low Beam Toggle
- Parking / Side Marker Lights
- Left & Right Turn Signals (with auto-cancel)
- Horn Circuit Control
- Windshield Wiper: Low Speed, High Speed, Intermittent Mode
- Washer Fluid Spray Activation
- Overtaking Flash (Momentary High Beam)
Rated Voltage 24V DC (Standard for Commercial Trucks)
Operating Voltage Range 20V – 32V DC
Housing Material Flame-Retardant Engineering Plastic (ABS + PC Blend)
Contact Material Silver-Alloy Contacts (High conductivity, anti-oxidation)
Connector Type Sealed Multi-Pin Connector (OEM-Specific, Waterproof Design)
Mounting Method Screw-Fixed with Alignment Tabs
Dimensions (Approx.) 180 × 100 × 85 mm (L × W × H)
Ingress Protection (IP) IP54 – Dust Protected, Resistant to Water Splashes
Mechanical Life ≥ 100,000 actuation cycles
Electrical Durability ≥ 50,000 operational cycles at rated load
Operating Temperature -40°C to +85°C (-40°F to +185°F)
Compliance & Certifications TS16949, ISO 9001, GB/T 28046, RoHS
Compatible Vehicle Models Dongfeng Tianlong KL/KX/GX (2007–Present), Kingrun KR (Selected Models)
Special Notes C0401 denotes Right-Hand Drive (RHD) version; not interchangeable with LHD C0400 without verification
开关组件-5


开关组件-2


Parameter Specification
Rated Voltage 24V DC (standard for heavy-duty commercial vehicles)
Operating Voltage Range 20V – 32V DC
Functions Included - Headlight: On/Off, High/Low Beam Toggle
- Parking Lights / Side Marker Control
- Left & Right Turn Signals (with auto-cancel)
- Horn Circuit Activation
- Windshield Wiper: Low/High Speed, Intermittent Mode
- Washer Fluid Spray Control
- Overtaking Flash (Momentary High Beam)
Weight 1.2 kg – 2.0 kg
Dimensions Approx. 180 × 100 × 85 mm (varies slightly by model)
Mechanical Life ≥ 100,000 actuation cycles
Electrical Life ≥ 50,000 cycles at rated load
Operating Temperature -40°C to +85°C (-40°F to +185°F)
Ingress Protection (IP) IP54 (Protected against dust and water splashes)
Vibration Resistance Meets GB/T 28046 / ISO 16750-3 standards
Mounting Style Screw-mounted with alignment tabs


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