The comfort and stability of the driver’s environment are fundamental to long-haul trucking efficiency and safety. As a premier supplier of genuine Sinotruk Howo parts, we provide the complete Sinotruk Howo Front Suspension Of The Cab assembly. This sophisticated system is engineered to isolate the truck cab from chassis vibrations and road impacts, significantly enhancing driver comfort, reducing fatigue, and protecting the cab structure from stress damage over thousands of miles.
The Sinotruk Howo Front Suspension Of The Cab is the assembly of components that connects the front of the truck’s cab to the chassis frame. Its primary function is to absorb and dampen shocks, vibrations, and bumps transmitted from the road through the wheels and chassis, preventing these forces from being directly transferred to the driver and cab structure.
This system is available in two main types: Air Suspension (AS) and Screw Spring Suspension (SS, including SSH for long/high-roof cabs). The air suspension uses pneumatic air springs for a superior, self-leveling ride, while the spring suspension uses mechanical coil springs. Our kit includes components for both configurations, ensuring the correct fit for your specific cab model.
The suspension is a complex assembly comprising swing arms (left and right), front supports, bottom spring brackets, the main spring unit (air bag or coil spring), shock absorbers, a height control valve (for AS), connecting rods, guides, and all necessary high-strength mounting hardware, brackets, and rubber stops for noise isolation.
Beyond simple cushioning, the system allows for controlled cab movement. The swing arms provide a pivot point, while the shock absorbers dampen oscillatory motion. The height control valve in air systems maintains a consistent cab level regardless of load. This integration ensures the cab remains stable and level, enhancing handling perception and safety.
The following comprehensive table lists all components for the Sinotruk Howo Front Suspension Of The Cab assembly. Please note the applicability codes: AS (Air Suspension), SS (Screw Spring Suspension), SSH (Screw Spring for Long/High-Roof Cab).
| No. | Part No. | Designation |
|---|---|---|
| 1 | AZ1642430030 | Above base for air spring (AS) |
| 1 | AZ1642430125 | Above base for screwy spring (SS) |
| 2 | Q40310 | Spring washer |
| 3 | Q15081025 | Screw |
| 4 | Q15080820 | Screw (AS) |
| 5 | Q41208 | Washer (AS) |
| 6 | WG1642430033 | Guide (AS) |
| 7 | AZ1642430116 | Washer (SS) |
| 8 | AZ1642430085 | Air spring (AS) |
| 9 | WG1642430118 | Screwy spring (SS) |
| 10 | WG1642430117 | Screwy spring (SSH) |
| 11 | Q40508 | Spring washer |
| 12 | Q15080820 | Screw |
| 13 | WG1642430086 | Notafe (AS) |
| 14 | AZ1642430043 | Cover |
| 15 | Q40312 | Spring washer |
| 16 | Q15081235 | Screw |
| 17 | AZ1642430041 | Front support left |
| 18 | WG1642430010 | Bottom spring bracket left (AS) |
| 19 | AZ1642430110 | Bottom spring bracket left (SS) |
| 20 | AZ1642430126 | Bottom spring bracket left (AS,drive right) |
| 21 | Q151C1233 | Screw |
| 22 | AZ1642430071 | Screw |
| 23 | AZ1642430051 | Left swing arm |
| 24 | Z1662430072 | Washer |
| 25 | J90003888459 | Nut |
| 26 | J90003888457 | Nut |
| 27 | J90003888457 | Nut |
| 28 | WG1642430020 | Bottom spring bracket right (AS) |
| 29 | WG1642430120 | Bottom spring bracket right (SS) |
| 30 | AZ1642430127 | Bottom spring bracket right (AS,drive right) |
| 31 | Q40208 | Washer |
| 32 | Q15080835 | Screw (AS) |
| 33 | WG1642430051 | Height control valve (AS) |
| 34 | WG1642430035 | Brace rad I (AS) |
| 35 | Q340B09 | Nut (AS) |
| 36 | AZ1642430036 | Ball washer (AS) |
| 37 | AZ1642430034 | Connecting rod (AS) |
| 38 | Q340B08 | Nut (AS) |
| 39 | Q41208 | Toothed washer (AS) |
| 40 | Q340808 | Nut (AS) |
| 41 | Q5002012 | Split pin (AS) |
| 42 | Q5100614 | Bolt (AS) |
| 43 | AZ1642430052 | Right swing arm |
| 44 | Q151B1645 | Screw |
| 45 | AZ1642430042 | Front support right |
| 46 | J90005888459 | Nut |
| 47 | Q33014 | Nut |
| 48 | AZ1642430091 | Shock absorber |
| 49 | Q1841470 | Nut |
| 50 | AZ1642430082 | Washer |
| 51 | WG1612430081 | Spring stop |
| 52 | Q150B1460 | Screw |
| 53 | Q33014 | Nut |
| 54 | AZ1642430097 | Rubber stop |
| 55 | Q40216 | Washer |
| 56 | Q33016 | Nut |
※ AS— Air suspension of cab | ※ SS— Screwy spring suspension of cab | ※ SSH— Screwy spring suspension of Long cab and high-roof cab
Our kit provides components specifically designed for your cab’s suspension type—Air (AS) or Screw Spring (SS/SSH)—and configuration (standard, long, high-roof, right-hand drive). This ensures every bracket, spring, and linkage fits perfectly, restoring the system’s designed kinematics and load-bearing characteristics for optimal performance.
We supply the suspension as a complete overhaul kit. This includes all major structural components (swing arms, supports, brackets), the core spring unit (air bag or coil spring), shock absorbers, all ancillary parts (height valve, connecting rods, guides, stops), and every required high-tensile fastener. This allows for a full system renewal in one package.
A properly functioning front cab suspension is critical for operator well-being. Our genuine parts restore the system’s ability to absorb road shocks, dramatically reducing driver fatigue on long journeys. It also protects the cab structure, dashboard, and internal fixtures from the damaging effects of constant vibration, preventing cracks and premature wear.
Manufactured to meet or exceed OEM standards, our suspension components are built for the rigors of heavy-duty transport. The materials resist corrosion and fatigue, ensuring long service life. Replacing worn parts with our kit restores stability, eliminates cab shake and noise, and contributes to the overall safety and professionalism of your vehicle.
Regular inspection of the Sinotruk Howo Front Suspension Of The Cab is vital. For air systems, check for leaks in the air springs and lines. For all systems, inspect shock absorbers for fluid leaks, check all bushings in swing arms and brackets for excessive play, and ensure all mounting bolts are torqued to specification. Listen for unusual clunks or squeaks when driving over bumps. Worn suspension components not only compromise comfort but can affect vehicle handling and safety. Always use genuine replacement parts to maintain system integrity.
Invest in the comfort, safety, and longevity of your Sinotruk Howo cab. The genuine Front Suspension Of The Cab assembly is a foundational component for a productive and professional driving environment.
If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.
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