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FAW IGNITION SWITCH ASSEMBLY Truck Accessories 3704010-D816 Ignition switch assembly / Starter switch assembly

The 3704010-D816 Ignition Switch Assembly — also known as the Starter Switch or Key Lock Module — is a critical electro-mechanical control unit installed on the steering column of FAW Jiefang J5, J6, JH6, and related medium- to heavy-duty commercial vehicles. As the primary interface between the driver and the vehicle’s electrical system, it controls all power modes from accessory operation to engine start-up.

This switch not only manages the distribution of 24V DC power across the truck’s systems but also integrates a mechanical anti-theft locking mechanism that secures the steering wheel when the key is removed. Designed for durability under extreme conditions, it supports frequent daily starts typical in logistics, construction, and long-haul transport operations.
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  • 3704010-D816

  • FAW

Attribute Specification
Product Name Ignition Switch Assembly / Starter Switch
Part Number 3704010-D816
Alternative Numbers 3704010-A01, 3704010-B110, 3704010-61B, 3704010-6K9, 3704010-8EB1
Voltage Rating 24V DC (standard for dual-battery heavy truck systems)
Key Function Mechanical lock + Electrical circuit control
Switch Positions LOCK / ACC / ON(RUN) / START (4-position design)
Lock Body Material High-Strength Zinc Alloy or Stainless Steel (anti-drill, anti-pick)
Contact Material Silver-Copper Alloy (high conductivity, arc-resistant)
Connector Base Heat-Resistant, High-Insulation Engineering Plastic
Vehicle Application FAW Jiefang J5P (New Dawei), J5M, J6P, J6L, J6H, JH6 Series
Engine Compatibility Xichai (CA6DL/CA6DM), Dachai engines with 24V systems
Operating Temperature -30°C to +85°C (-22°F to 185°F)
Weight Approx. 0.4 – 0.6 kg
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Parameter Value
Electrical Load Capacity Supports up to 15–20A continuous load; peak current during starter engagement
Position Detents Clear tactile feedback at each position (LOCK, ACC, ON, START)
START Position Return Spring-loaded auto-return to ON after release
Mechanical Life ≥ 50,000 rotation cycles
Steering Lock Integrated mechanical interlock engages when key is removed in LOCK position
Terminal Configuration Multi-pin plug-in connector (direct harness mating)
EMI Protection Low-voltage fluctuation output prevents CAN bus interference
Certification CE, ISO9001, ROHS compliant manufacturing standards


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