Height Control Valve Linkage WG1642440021 for Sinotruk HOWO A7 T7H Cab Air Suspension

Adjustable height control valve rod assembly WG1642440021 for HOWO cab air suspension, durable ball joint, direct replacement.

Description

Height Control Valve Linkage WG1642440021 for HOWO Cab Air Suspension

This premium height control valve linkage (leveling valve rod assembly) is a direct OEM replacement for Sinotruk HOWO A7, T7H, T5G, SITRAK C7H heavy-duty trucks. It connects the cab air suspension height control valve to the chassis, automatically adjusting the air spring pressure to maintain a stable cab height, absorb road shocks, and ensure a smooth ride even on rough roads.

Key Specifications

Part Number: WG1642440021 (Alternative: WG9925820002, AZ1642440021)
Type: Adjustable height control valve rod / leveling valve linkage
Material: High-strength galvanized steel rod + rubber dust boot + metal ball joint
Structure: Ball head + adjustable threaded rod + L-shaped mounting bracket
Feature: Adjustable length, wear-resistant, anti-corrosion
Application: Cab air suspension system, height control valve
Quality Standard: ISO 9001, IATF 16949 certified

Compatible Vehicles

Sinotruk HOWO: A7, T7H, T5G, TX, Hohan N5G/N7G
SINOTRUK SITRAK: C7H, C5H, G7H
Other Sinotruk heavy trucks with cab air suspension

Core Features & Benefits

✅ Perfect OEM Fit: 1:1 match with original WG1642440021, direct bolt-on replacement, no modification needed

✅ Adjustable Design: Threaded rod allows precise length adjustment for optimal cab height calibration

✅ Durable Ball Joint: High-quality ball head with rubber dust boot, prevents dust and water intrusion, long service life

✅ Smooth Ride Performance: Accurately transmits height signals to the height valve, ensures stable cab suspension, reduces driver fatigue

✅ Heavy-Duty Construction: Galvanized steel resists rust and corrosion, suitable for harsh working conditions

✅ Easy Installation: Complete assembly with all necessary components, ready to install, saves maintenance time

Installation Notes

Before installation, check the height control valve and air spring for damage or air leakage
Adjust the rod length to match the original cab height, ensure the valve is in neutral position when the cab is at standard height
Tighten all lock nuts securely to prevent loosening during operation
After installation, test the cab suspension by loading/unloading to verify normal inflation/deflation

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