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Genuine original product Column Switch 3774-00001 for YUTONG Bus ZK6899/6129 Turn signal Switch for Yutong European Bus

Genuine product Column Switch 3774-00001 for YUTONG Bus ZK6899/6129 Turn signal Switch for Yutong European Bus

The Part Number 3774-00001 is a high-integration Combination Switch Assembly specifically engineered for heavy-duty passenger coaches, serving as a central control unit mounted on the steering column. Widely used in Yutong (Yutong) and other premium bus brands such as Zhongtong, this switch module manages critical driving functions including lighting control, turn signals, wiper operation, and horn activation (on select versions). Designed to meet the evolving demands of the 2026 commercial vehicle maintenance market, it delivers reliable performance under frequent operational cycles and harsh environmental conditions. With precise tactile feedback and robust electrical design, the 3774-00001 ensures safe, intuitive driver interaction and seamless integration with modern 24V vehicle electrical systems.

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Model:
3774-00001
Brand:
Yutong Bus Parts

Product Description

Attribute	Description
Product Name	Integrated Combination Switch Assembly
Part Number	3774-00001
Function Type	Steering Column-Mounted Multi-Function Control Switch
Primary Application	Heavy-Duty Coaches, City Buses, and Specialized Commercial Vehicles
Main Fitment Brands	Yutong (ZK Series), Zhongtong, and compatible heavy-duty platforms
Voltage Rating	24V DC
Mounting Location	Steering Column (Left or Right Side, Typically Left)
Key Functions	Turn Signals, Headlight Beam Switching, Wiper Speed Control, Washer Spray, Horn
Housing Material	High-Strength ABS Plastic + Reinforced Metal Frame
Contact Material	Wear-Resistant Alloy Contacts (Anti-Arc & Oxidation Resistant)
Environmental Protection	Dust-resistant design; moisture protection (IP54 rated under normal use)

Parameter	Details / Value
Operating Voltage	24V DC (Nominal), Compatible with 24V Automotive Systems
Electrical Load Capacity	≤ 5A per circuit (max); not suitable for direct high-power load driving
Left Lever Functions	- Turn Signal (Left/Right) - Hi-Lo Beam Change (Push/Pull) - Flash-to-Pass (Temporary Overtake Signal)
Right Lever Functions	- Wiper Modes: Intermittent / Low / High - Windshield Washer Spray
Integrated Horn Control	Available on certain configurations (via steering wheel button linkage)
Mechanical Life	> 100,000 actuation cycles (lever operations)
Operating Temperature Range	-40°C to +85°C
Connector Type	Multi-pin plug-in connector (exact pinout varies by OEM specification)
Compliance Standards	ISO 10605 (ESD), ISO 7637-2 (Electrical Transients), GB/T 28046 (Automotive EMC)