The Tilting assembly is a core hydraulic system that enables safe and efficient cargo unloading for the HOWO 7 6X4 Dump Truck. Engineered for heavy-duty construction and mining applications, this assembly integrates precision-machined components that work in perfect synergy. For a complete overview of genuine Sinotruk parts, visit our Sinotruk Catalog which details every component with original specifications.
This comprehensive Tilting assembly consists of the following key parts: Cab lifting cylinder, Hydraulic manual oil pump (Right vehicle), Hexagon bolt with flange M10, Lifting oil pipe, Stringing sheath, Four-way pipe joint, Upper bracket axle of lifting cylinder, Self-locking nut, Lower support shaft of lifting cylinder, Large gasket, Flat washer, gasket, Limit pull belt support, Hexagon toothed bolt with flange, Hexagon flange face with tooth nut, Upper brace bar, Pin shaft (h11), Cotter pin, Waveform elastic washer, Lower stay, Axis pin, Saddle-shaped elastic washer, Plastic fastening belt A5*280, Instruction board, Lift pump bracket assembly (For right-hand vehicle), and Hexagon nut with flange M10.
Every part in this Tilting assembly is manufactured to strict OEM tolerances, ensuring reliable performance under extreme loads and harsh environments. Whether you are replacing worn components or building a new hydraulic system, the HOWO Tilting assembly delivers consistent power and durability across thousands of operating cycles.
The Cab lifting cylinder provides the primary lifting force to tilt the cab forward, offering full access to the engine and transmission for maintenance. It is a double-acting hydraulic cylinder with a hard-chromed piston rod and high-pressure seals that withstand continuous operation in dusty construction sites.
This manual hydraulic pump is mounted on the right side of the vehicle and serves as the backup power source for the Tilting assembly. It enables manual cab tilting when the main hydraulic system is offline, featuring a robust cast-iron body and an ergonomic handle for smooth operation.
The Hexagon bolt with flange M10 is a high-strength fastening element used to secure critical mounting brackets and hydraulic components. Its integrated flange distributes clamping pressure evenly, reducing the risk of loosening due to vibration during dump truck operation.
The Lifting oil pipe is a precision-bent steel tube that conveys hydraulic fluid between the pump and the lifting cylinder. It features flare-end fittings and O-ring seals to prevent leaks, ensuring consistent pressure delivery throughout the Tilting assembly’s operating range.
This protective sheath wraps around hydraulic hoses and wiring harnesses, shielding them from abrasion, heat, and chemical exposure. The Stringing sheath is made from flame-retardant PVC and is slit for easy installation over existing lines within the Tilting assembly.
The Four-way pipe joint is a brass manifold that distributes hydraulic flow to multiple circuits in the Tilting assembly. Its cross-drilled design allows for flexible routing of oil lines while maintaining low pressure drop and leak-free connections under high system pressure.
This forged steel axle serves as the pivot point for the upper mounting bracket of the lifting cylinder. It is precision-ground to ensure smooth rotation and is induction-hardened to resist wear from the cyclic loading experienced during every tilting cycle.
The Self-locking nut features a nylon-insert locking element that provides consistent prevailing torque, preventing loosening under severe vibration. It is used on critical pivot pins and bracket bolts within the Tilting assembly, ensuring long-term joint integrity.
The Lower support shaft anchors the base of the lifting cylinder to the chassis frame. Manufactured from high-tensile alloy steel, it carries the full thrust load of the cylinder and is equipped with grease fittings for easy lubrication during scheduled maintenance.
This large-diameter gasket seals the interface between the cylinder mounting flange and the bracket, preventing oil seepage and keeping contaminants out. It is die-cut from high-grade nitrile rubber and is resistant to hydraulic fluids and temperature extremes.
The Flat washer is a precision-stamped steel ring that provides a smooth bearing surface under bolt heads and nuts. It protects the component surface from galling and helps distribute clamp load evenly across the mounting area in the Tilting assembly.
This general-purpose gasket is used in multiple fluid connections throughout the Tilting assembly. Made from non-asbestos fiber material, it offers excellent sealing performance against mineral-based hydraulic oils and maintains flexibility under varying pressures.
The Limit pull belt support (left and right symmetrical) stabilizes the cab tilt mechanism and prevents over-travel. It is a stamped steel bracket with slotted holes for precise adjustment, ensuring the cab stops at the correct angle during the tilting process.
This flange bolt features a serrated bearing face that digs into the mating surface to create a positive lock against rotational loosening. It is used in high-vibration areas of the Tilting assembly, such as the pump mounting and cylinder brackets.
The Hexagon flange face with tooth nut has an integrated toothed washer face that provides a secure, vibration-resistant fastening solution. It is paired with bolts on heavy-load joints to maintain clamp force even under dynamic loading conditions.
The Upper brace bar is a tubular steel strut that reinforces the upper structure of the Tilting assembly. It connects the cylinder mounting points to the cab frame, adding rigidity and reducing flex during the lifting and lowering phases.
The Pin shaft (h11 tolerance) is a precision-ground dowel that locates and aligns moving components within the Tilting assembly. With a tight diameter tolerance, it ensures accurate positioning of the cylinder and linkage for smooth, bind-free operation.
The Cotter pin is a split-type locking pin that secures castellated nuts on shaft ends and pivot pins. Made from spring steel, it prevents nut rotation and retains components in place, serving as a critical safety element in the Tilting assembly.
The Waveform elastic washer provides a spring-like preload between bolted joints, compensating for thermal expansion and settling. Its wavy profile maintains tension and prevents loosening of fasteners subjected to cyclic loads in the Tilting assembly.
The Lower stay is a heavy-duty support bracket that transfers the tilting forces to the chassis. It is fabricated from high-strength low-alloy steel and features multiple mounting holes to accommodate different chassis configurations.
The Axis pin is a hardened steel pivot that connects the lifting cylinder to the lower bracket assembly. It is case-hardened for wear resistance and features a central grease channel for efficient lubrication over extended service intervals.
This saddle-shaped elastic washer provides a high-retention locking force on threaded fasteners. Its unique curvature creates a spring effect that maintains axial tension, effectively preventing self-loosening in high-vibration environments.
The Plastic fastening belt A5*280 is a reusable cable tie used for bundling hoses and wires along the Tilting assembly. Made from UV-stabilized nylon, it offers secure fastening with a quick-release mechanism for easy maintenance access.
The Instruction board is a durable aluminum plate with laser-etched operating procedures and safety warnings for the Tilting assembly. It is mounted in a visible location to guide operators on proper tilting sequences and emergency stop protocols.
This bracket assembly is specifically designed for right-hand-drive HOWO vehicles, providing a rigid mounting platform for the hydraulic pump. It includes vibration-damping mounts and alignment pins to ensure proper pump-to-engine coupling.
The Hexagon nut with flange M10 is a high-quality flange nut used with matching bolts throughout the Tilting assembly. Its wide flange face eliminates the need for a separate washer, reducing assembly time and ensuring consistent torque retention.
| No. | Part No. | Description |
|---|---|---|
| 1 | WG9719820004 | Cab lifting cylinder |
| 2 | WG9719826001 | Hydraulic manual oil pump (Right vehicle) |
| 3 | ZQ1841016 | Hexagon bolt with flange M10 |
| 4 | WG9719820201 | Lifting oil pipe |
| 5 | WG9719820202 | Lifting oil pipe |
| 6 | WG9719820203 | Lifting oil pipe |
| 7 | WG9719820204 | Lifting oil pipe |
| 8 | 1.90003E+11 | Stringing sheath |
| 9 | 1.90004E+11 | Four-way pipe joint |
| 10 | WG9719820018 | Upper bracket axle of lifting cylinder |
| 11 | 1.90004E+11 | Self-locking nut |
| 12 | WG9719820019 | Lower support shaft of lifting cylinder |
| 13 | WG9719820011 | Large gasket |
| 14 | Q40124 | Flat washer |
| 15 | Q33424 | Self-locking nut |
| 16 | WG9719820013 | gasket |
| 17 | WG9719820129 | Limit pull belt support |
| 18 | ZQ1811235TF6 | Hexagon toothed bolt with flange |
| 19 | ZQ325121T3F6 | Hexagon flange face with tooth nut |
| 20 | WG9719820021 | Upper brace bar |
| 21 | Q5101428 | Pin shaft (h11) |
| 22 | Q40114 | Flat washer |
| 23 | Q5004030 | Cotter pin |
| 24 | Q41814 | Waveform elastic washer |
| 25 | WG9719820022 | Lower stay |
| 26 | 190003903452 | Axis pin |
| 27 | Q41710 | Saddle-shaped elastic washer |
| 28 | Q5003216 | Cotter pin |
| 29 | Q40112 | Flat washer |
| 30 | WG9003171356 | Plastic fastening belt A5*280 |
| 31 | WG9719820098 | Instruction board |
| 32 | WG9719930395 | Lift pump bracket assembly (For right-hand vehicle) |
| 33 | ZQ1841065TF6 | Hexagon bolt with flange M10 |
| 34 | ZQ320101T3F6 | Hexagon nut with flange M10 |
OEM-grade durability — Every component in the Tilting assembly meets or exceeds Sinotruk’s original equipment specifications. From the high-tensile steel brackets to the precision-honed cylinder bores, we deliver parts that withstand the toughest conditions on construction and mining sites around the world.
Seamless system integration — Our Tilting assembly is engineered specifically for the HOWO 7 6X4 chassis, ensuring perfect fitment and optimal hydraulic performance. The matched flow rates and pressure ratings eliminate compatibility issues, reducing installation time and minimizing downtime for fleet operators.
Maintenance-friendly design — All lubrication points, drain plugs, and inspection ports are strategically positioned for easy access. The modular construction of the Tilting assembly allows for rapid component replacement without disturbing adjacent systems, keeping your service intervals short and productive.
Global availability with local support — We stock a comprehensive inventory of Tilting assembly parts in regional warehouses across five continents. Combined with our technical support team and detailed online catalog, we ensure that replacement parts and expert advice are always within reach.
Our online catalog provides comprehensive access to genuine SINOTRUK parts for all major vehicle lines — including HOWO, Sitrak, Steyr, and Yellow River series trucks. You can browse detailed specifications, original part numbers, and exploded-view diagrams for every assembly. Whether you are performing routine maintenance or planning a major overhaul, the catalog helps you quickly identify the correct components for your vehicle. When you become a SINOTRUK customer, we offer complimentary full‑access catalog services, ensuring you always have the latest product data and interchangeability information at your fingertips to support efficient fleet management and accurate parts ordering.
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