Steering Column Assembly-Cab System-Jinan Huanya Auto Parts Co., Ltd.

Sinotruk HOWO Steering Column Assembly

Part Name: Steering Column Assembly
Applicable Models: Mainly suitable for Sinotruk HOWO series heavy-duty trucks (e.g., HOWO A7, T7H, T5G, and other platform models).
Appearance Features:
- Main Body: Constructed from upper and lower metal tubes telescopically connected, externally wrapped with a black dust cover (rubber bellows).
- Adjustment Mechanism: A rack-and-pinion style telescopic adjustment mechanism is located at the upper section, used to adjust the steering wheel's forward/rearward position (tilt/telescopic adjustment).
- Locking Device: Features a black rotary handle (or lever) to lock/unlock the steering column adjustment mechanism.
- Electrical Connections: Wiring harness connectors and a red switch assembly are present at the top, typically used to connect the ignition switch, clock spring (spiral cable), and steering wheel control buttons.

Power Transmission: Transfers the driver's steering torque from the steering wheel to the steering gear, enabling the vehicle's front wheels to turn.
Adjustment (Driver Ergonomics): By releasing the adjustment lever, the driver can move the steering wheel up/down and in/out based on their height and seating position, achieving optimal driving visibility and control posture.
Safety Protection: The built-in dust cover effectively prevents mud, dust, and debris from entering the column, protecting the precision mechanism. In some designs, the column features energy-absorbing collapsibility in the event of a collision, reducing injury to the driver.
Integrated Controls: Modern steering columns often integrate the ignition switch, horn, and multi-function buttons (e.g., cruise control, Bluetooth phone) as part of the assembly.

Common official part numbers for HOWO steering column assemblies may include:

Jinan Huanya Auto Parts Co., Ltd.