Telescopic shaft

Product Overview

The AZ9725478044 Steering Telescopic Shaft is a key component of the steering system used in SINOTRUK HOWO series trucks, including HOWO T7H, HOWO A7, HOWO T5G, and SITRAK C7H models.It connects the steering wheel to the steering gearbox, transmitting torque and absorbing vibration to ensure smooth, stable, and safe steering performance.

Product Specifications

Part Number: AZ9725478044

Name: Steering Telescopic Shaft

Applicable Models: HOWO T7H / T5G / A7 / SITRAK C7H

Material: High-strength alloy steel (40Cr)

Length Range: 680 – 720 mm (adjustable type)

Spline Type: 32 teeth precision rolled spline

Torque Capacity: Approx. 450 N·m

Surface Treatment: Phosphating + Grease coating for anti-rust protection

Certification: ISO 9001 Quality Management System

Key Features

High Strength & Durability – Made from premium 40Cr alloy steel, ensuring excellent wear and torsion resistance.

Adjustable Design – Telescopic structure allows easy installation and length adjustment.

Perfect Fit – 100% OEM dimension accuracy for HOWO and SINOTRUK models.

Anti-Rust Protection – Phosphated surface with lubrication coating to prevent corrosion.

Smooth and Safe Steering – Ensures stable torque transmission and driver safety under all conditions.

Packaging & Delivery

Packaging: Carton or wooden box with foam inner protection

Lead Time: In-stock items can be shipped within 1–3 days

Delivery Methods: Sea freight / Air freight / Land transportation

Installation Instructions

Make sure the part number and vehicle model match before installation.

Keep the spline connection clean and free from dust or grease contamination.

Check the telescopic movement for smoothness after installation.

Regularly inspect and lubricate the shaft to extend its service life.