Shandong Shengyue Technology Development Co.,Ltd is one of the most professional cab suspension system front/rear cab air shock absorber assembly az1664430103 wg1664430201 manufacturers and suppliers in China. Please feel free to buy high quality genuine auto parts at competitive price from our factory.
Front cab air shock absorber assembly AZ1664430103
Rear cab air shock absorber assembly WG1664430201 / WG1664430201-2
Cab Air Suspension Air Line Assembly AZ1664440068 / AZ1664440069
Cab Tilt Rear Support Bracket Assembly AZ1662510003 / AZ1662510004
Functions of the Cab Suspension System
1. It connects and supports the front end of the heavy-duty truck cab (typically near the front tilting bracket), serving to dampen vibrations, absorb shocks, and stabilize the cab while the vehicle is in motion.
2. When the cab tilts due to changes in vehicle load, road bumps, or cornering, the height control valve regulates airflow to the air springs-inflating them to raise the cab or deflating them to lower it-thereby maintaining the cab in a level and comfortable suspended state.
3. The rear tilting support bracket assembly bears the full weight and vibration/impact loads of the cab's rear-left side and works in conjunction with the cab's hydraulic tilt-locking mechanism; it locks the cab securely during driving to prevent bouncing and serves as the rear pivot point during tilting operations.
Common Issues and Troubleshooting Recommendations
1. Air Leakage and Sagging (Rubber Air Bellows Aging): As the vehicle ages, the rubber air bellows are prone to developing micro-cracks, leading to slow air leakage. If the vehicle's front end sags or leans to one side after being parked overnight, and takes a long time to rise after startup, the air bellows are likely damaged.
2. Shock Absorber Core Oil Leakage (Harsh, Bumpy Ride): The assembly contains an internal hydraulic shock absorber core. If the air bellows inflate correctly but the vehicle experiences excessive vertical oscillation or bouncing while driving-or if visible oil stains appear on the housing-it indicates that the internal hydraulic damping oil seal has failed due to leakage; prompt replacement is required.
3. Paired Replacement Recommendation: Since the service life and rate of aging for the left and right front air shock absorbers are very similar, it is strongly recommended to replace them as a pair during maintenance. Replacing only one side results in mismatched damping and airtightness between the new and old units, causing the front end to sway while driving; furthermore, the uneven load distribution makes the new air bellows highly susceptible to premature failure.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Hot Tags: cab suspension system front/rear cab air shock absorber assembly az1664430103 wg1664430201, manufacturers, suppliers, factory, parts, genuine, original, Chinese truck cabin parts, HOWO right drive cabin parts, Sinotruk BUmpers, Sinotruk HOWO Air Compressor, sinotruk HOWO cabin parts, Sinotruk Sun Visor
