Sinotruk Howo HOWO Cab Front Suspension | Heavy-Duty Ride & Stability
Sinotruk Howo HOWO cab front suspension is engineered for superior ride comfort and chassis stability.
This premium suspension system supports the cab and absorbs road shocks effectively.
When you choose genuine Sinotruk Howo Parts, you invest in safety and durability.
Sinotruk Howo HOWO cab front suspension ensures the cab remains stable under extreme conditions.
Every component is manufactured to original specifications for perfect fitment.
The robust design of Sinotruk Howo HOWO cab front suspension reduces driver fatigue.
It enhances vehicle handling and extends the life of cab mounting points.
Whether for mining or highway use, Sinotruk Howo HOWO cab front suspension delivers reliability.
Our suspension kit includes all necessary brackets, bolts, and bushings.
Sinotruk Howo HOWO cab front suspension is tested for 500,000 cycles without failure.
Upgrade your truck’s front suspension with our genuine Sinotruk Howo HOWO cab front suspension assembly.
It restores original ride height and improves steering response.
Invest in quality with Sinotruk Howo HOWO cab front suspension for your fleet.
The integrated design minimizes maintenance and maximizes uptime.
Sinotruk Howo HOWO cab front suspension fits all standard HOWO cab variants.

Key Components & Designations of Sinotruk Howo HOWO Cab Front Suspension
1. Cab tilt cylinder assembly
This assembly controls the tilting motion of the cab for engine access.
It is a hydraulic cylinder with integrated safety lock.
Precision machined to ensure smooth and safe cab lifting.
2. Cab tilt cylinder welded assembly
The welded version provides extra structural rigidity for heavy-duty cycles.
It is used in harsh environment applications such as mining.
Each weld is inspected for cracks and fatigue resistance.
3. Rubber bushing
Rubber bushing isolates vibration between chassis and cab mounts.
It reduces noise transmission and improves ride comfort.
Made from high-grade natural rubber with steel inner sleeve.
4. Bolt
High-strength bolts secure the suspension arms to the chassis frame.
They are rated 10.9 or 12.9 for maximum tensile strength.
Each bolt comes with corrosion-resistant coating.
5. Profile washer
Profile washer distributes load evenly under the bolt head.
It prevents loosening due to vibration and thermal expansion.
Designed with specific geometry for each mounting point.
6. Self-locking nut
This nut uses nylon insert or deformed thread to lock in place.
It eliminates the need for additional lock washers.
Ensures consistent clamping force over time.
7. Front suspension damper assembly (high stiffness coil spring)
This damper integrates a high-stiffness coil spring for load support.
It absorbs road impacts and controls spring oscillation.
Tuned specifically for HOWO cab weight and dynamics.
8. T‑bushing
T-bushing provides precise centering for pivot connections.
It reduces metal-to-metal contact and wear.
Manufactured from engineering polymer with low friction coefficient.
9. Hexagon flange bolt
Flange bolts spread pressure over a larger surface area.
The integrated flange eliminates separate washers.
Used for critical joints like bracket to frame connection.
10. All-metal hexagon flange self-locking nut
This nut locks by deforming the top threads against the bolt.
Suitable for high-temperature applications where nylon would melt.
Reusable several times without losing locking ability.
11. Left front bracket assembly
This cast or fabricated bracket supports the left side of the cab suspension.
It provides precise mounting points for shock absorbers and bushings.
Designed with finite element analysis for stress distribution.
12. Left front bracket
The left bracket is a key structural component of the front suspension.
It attaches directly to the chassis rail and cab mount.
Made from high-strength steel for durable performance.
13. Hexagon head bolt
Standard hex bolts used throughout the suspension assembly.
They are available in various lengths (M12, M14, M16 etc.).
Grade 10.9 for critical connections, 8.8 for secondary ones.
14. Self-locking nut (multiple)
Same high-reliability nut used across multiple positions.
Ensures consistency in maintenance and spare parts inventory.
Vibration-proof design tested on road and off‑road.
15. Right front bracket assembly (symmetric to left)
Mirror of the left bracket assembly for the right side of the cab.
It ensures perfect symmetry of suspension behavior.
Made from identical materials and processes as the left side.
16. Right front bracket
Right side counterpart of the left front bracket.
Matches the cab’s right‑side mounting points precisely.
Tested for equal strength and stiffness as the left one.
17. Nylon bushing
Nylon bushings provide low‑friction articulation for pivot joints.
They are corrosion‑resistant and require no lubrication.
Used in applications where rubber bushing may wear quickly.
18. Cover plate
Cover plates protect bushings and bearings from dirt intrusion.
They also serve as retention for certain pivot pins.
Simple bolted design for easy inspection and replacement.
19. Spring washer
Spring washer adds tension to bolted joints to resist loosening.
Used in combination with standard hex nuts or bolts.
Made from hardened carbon steel.
20. Hexagon head bolt (M12×45)
Specific size bolt for attaching key suspension components.
Length of 45mm provides sufficient thread engagement.
Torque specification provided in maintenance manual.
21. Limit block assembly
Limit block prevents excessive cab movement during extreme articulation.
It contacts the chassis to limit travel and protect the suspension.
Made from polyurethane for impact absorption.
22. Pin shaft
Pin shaft acts as a pivot for suspension links and brackets.
Hardened and ground for long wear life.
Secured by split pins or lock nuts at either end.
23. Positioning screw
Positioning screw locks adjustment sleeves or brackets in place.
Often used to set ride height or preload.
Easily accessible for fine-tuning during service.
24. Hexagon nut (M10)
Standard M10 hex nut used for smaller fasteners across the suspension.
Compatible with spring washers or nylon lock versions.
Zinc-plated for corrosion resistance.
25. Grease nipple assembly
Grease nipple allows manual lubrication of pivot points.
Essential for maintaining low friction and preventing seizure.
Positioned at strategic locations for easy access.
26. Adjusting shim
Shims are thin metal plates used to adjust alignment or preload.
They come in various thicknesses (0.5mm to 2.0mm).
Stacked to achieve precise specifications.
27. Hexagon head bolt (M14×50)
Larger bolt for high-load areas such as bracket-to-frame connection.
Grade 10.9 for maximum strength.
Torqued with calibrated wrench during assembly.
28. Self-locking nut (M14)
Heavy-duty self-locking nut for M14 bolts.
Used in areas with high vibration exposure.
Compliant with ISO 10511 or similar standards.
Product Parameters of Sinotruk Howo HOWO Cab Front Suspension
| Number of part | Designation |
|---|---|
| AZ1642430219 | Cab tilt cylinder assembly |
| AZ1642430220 | Cab tilt cylinder welded assembly |
| AZ1642430061 | Rubber bushing |
| AZ1642430071 | Bolt |
| AZ1642430072 | Profile washer |
| 190003888459 | Self-locking nut |
| WG1642430385 | Front suspension damper assembly (high stiffness coil spring) |
| AZ1642430265 | T‑bushing |
| Q1841490 | Hexagon flange bolt |
| Q33014 | All-metal hexagon flange self-locking nut |
| AZ1682439231 | Left front bracket assembly |
| AZ1682430231 | Left front bracket |
| Q151B1645 | Hexagon head bolt |
| 190003888459 | Self-locking nut |
| AZ1682439232 | Right front bracket assembly (symmetric to left) |
| AZ1682430232 | Right front bracket |
| AZ1642430263 | Nylon bushing |
| AZ1642430235 | Cover plate |
| Q40312 | Spring washer |
| Q150B1245 | Hexagon head bolt (M12×45) |
| AZ1642430083 | Limit block assembly |
| AZ1642430239 | Pin shaft |
| Q2861030 | Positioning screw |
| Q340B10 | Hexagon nut (M10) |
| AZ9003963001 | Grease nipple assembly |
| WG1642430268 | Adjusting shim |
| Q151B1450 | Hexagon head bolt (M14×50) |
| 190003888458 | Self-locking nut (M14) |
Why Choose Our Sinotruk Howo HOWO Cab Front Suspension?
Our Sinotruk Howo HOWO cab front suspension is manufactured to original Sinotruk standards.
All brackets, bushings, and bolts are coated for corrosion resistance.
This ensures long-term durability in any climate or road condition.
You will experience less cab shake and improved driver comfort.
We use high-grade rubber and nylon for all bushing materials.
These materials reduce maintenance intervals and prevent premature wear.
The suspension damper is tuned specifically for HOWO cab weight.
It delivers consistent damping across all load ranges.
Our assembly is 100% inspected for dimensional accuracy and weld integrity.
Every self-locking nut is tested for prevailing torque performance.
Limit blocks are validated for impact absorption and rebound control.
You get a plug-and-play replacement that fits without modification.
Backed by a global network of Sinotruk parts distributors.
We provide full technical support and part cross-reference assistance.
Choosing our Sinotruk Howo HOWO cab front suspension means minimal downtime and lower total cost of ownership.
Whether for fleet upgrades or single-truck repair, we deliver consistent quality that keeps your HOWO trucks road-ready.
