The YNF17367 Pull Arm (OEM reference AZ9719410003 / 971903Z) is designed for the TH truck steering system. This left-side steering knuckle arm ensures precise control and stability during vehicle operation. Manufactured from high-strength alloy steel, it offers excellent resistance to bending, wear, and impact, providing long-term durability in heavy-duty truck applications.

This pull arm restores proper steering geometry, improving safety and handling performance.

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• OEM replacement for TH truck left steering knuckle arm

• High-strength alloy steel construction for durability and impact resistance

• Precision-machined for exact OEM fit and smooth operation

• Supports stable steering response under heavy loads

• Resistant to wear, bending, and vibration

• Maintains proper alignment and geometry of the steering system

• Easy installation using standard mounting points

• Enhances vehicle safety and control

Used in the left side steering system of TH trucks to connect the steering knuckle to the linkage, enabling precise directional control.

We provide compatibility verification, installation guidance, and technical support for alignment and maintenance.

Each pull arm is coated with anti-rust oil, packed with protective foam, and shipped in reinforced cartons or wooden crates to prevent damage during transport.

1. Is this pull arm compatible with TH trucks?
Yes, it matches OEM part AZ9719410003 / 971903Z.

2. Which side is this arm for?
It is designed for the left side of the steering system.

3. What material is the arm made from?
High-strength alloy steel with anti-corrosion treatment.

4. Can it withstand heavy-duty truck operation?
Yes, engineered for high load, vibration, and impact resistance.

5. How do I install it?
Install using standard OEM mounting points, ensuring proper alignment.

6. Does it improve vehicle handling?
Yes, it restores proper steering geometry and control.