The Shacman H3000 Saddle Seat is a robust, high-capacity fifth wheel coupling system engineered for Shacman H3000 series heavy-duty trucks. It ensures secure trailer attachment and reliable load transfer.
This assembly comprises multiple precision components: Self-locking Nut M20×1.5-8-ZN-D980*, Self-locking Nut M20×1.5-9-ZN-D980*, Hexagon Head Bolt- Fine Thread, Self-Locking Nut, Washer, Corrugated Fifth Wheel Mounting Plate, and the Yoster 50 Fifth Wheel (Jsk35Dvs3-22185). The Shacman H3000 Saddle Seat delivers unparalleled durability.
Manufactured to strict OEM tolerances, the Shacman H3000 Saddle Seat guarantees a perfect fit and long service life, making it the ideal replacement for worn fifth wheel units.
This self-locking nut features an M20×1.5 fine thread and a zinc-nickel coating (ZN-D980*) for superior corrosion resistance. It is designed to withstand high vibration environments.
The nylon insert ensures consistent prevailing torque, preventing loosening under dynamic loads. It is a critical fastening element in the fifth wheel mounting system.
Used in conjunction with the Hexagon Head Bolt, it provides a secure joint that maintains clamp load over extended service intervals.
This nut is interchangeable with the 9-ZN variant, offering flexibility in assembly while maintaining the same thread pitch.
Similar to its -8 counterpart, this self-locking nut also features an M20×1.5 fine thread but with a different prevailing torque characteristic (grade 9). It offers a slightly higher locking force for heavier loads.
The zinc-nickel plating provides excellent protection against road salts and chemicals, ensuring long-term reliability in harsh conditions.
It is often used on the main pivot bolts of the fifth wheel, where maximum security is required.
Both -8 and -9 nuts are included in the comprehensive Shacman H3000 Saddle Seat kit, catering to different torque specifications.
These high-strength bolts feature a fine thread pitch (M20 or M16) that provides superior clamping force and resistance to loosening compared to coarse threads.
Manufactured from quenched and tempered alloy steel, they meet property class 10.9 standards, ensuring exceptional tensile strength and fatigue resistance.
The hexagon head allows for precise torque application using standard tools, and the fine thread enables finer adjustment of preload.
These bolts are used to secure the fifth wheel mounting plate to the chassis and the saddle seat to the plate.
This generic self-locking nut (part number 190003888459) is a standard prevailing-torque nut used in various auxiliary attachments on the saddle seat assembly.
It features a nylon insert that grips the bolt threads, effectively preventing loosening due to vibration and thermal cycling.
Its compact design makes it suitable for confined spaces, and it is available in multiple sizes to accommodate different bolt diameters.
This nut is often used to secure air lines, electrical connectors, and other ancillary fittings on the fifth wheel.
This flat washer (1-99-907-030) is designed to distribute the load of the fastener over a larger surface area, preventing indentation and reducing stress on the mounting plate.
Manufactured from hardened steel with a zinc plating, it offers excellent durability and corrosion resistance.
It is used in conjunction with the Hexagon Head Bolts and self-locking nuts to create a robust and reliable joint.
The washer’s precise inner and outer diameters ensure proper fitment and consistent clamp load.
This heavy-duty washer (DZ9112510037) is specifically designed for the fifth wheel mounting application. It features a larger outer diameter to provide additional load-spreading capability.
Made from high-carbon steel with a yellow zinc-chromate finish, it resists corrosion and galling, ensuring easy disassembly even after years of service.
It is used on the main pivot bolts to distribute the immense vertical and horizontal loads transmitted through the saddle seat.
The washer’s thickness (approximately 4 mm) provides additional rigidity and helps maintain bolt preload.
This corrugated mounting plate (DZ95189930023) is a structural component that provides a robust interface between the chassis frame and the fifth wheel assembly. Its corrugated design enhances stiffness.
Manufactured from 8 mm thick high-strength steel with a powder-coated finish, it resists bending and fatigue under heavy loads.
The plate features precisely positioned holes for mounting the fifth wheel and for attaching the saddle seat to the chassis. It is engineered to distribute the kingpin load evenly across the frame.
Its corrugation pattern adds structural rigidity without significantly increasing weight, making it an efficient design for modern trucks.
This plate is a critical part of the Shacman H3000 Saddle Seat system, ensuring that the fifth wheel remains securely attached under all operating conditions.
The Yoster 50 Fifth Wheel is a premium coupling device that features a 50 mm kingpin lock and a robust cast-steel body. Its model Jsk35Dvs3-22185 is designed for high-tonnage trailers.
It incorporates a double-jaw locking mechanism that provides positive engagement and reduces wear. The locking indicator offers visual confirmation of correct coupling.
The fifth wheel’s grease fittings allow for easy lubrication of all moving parts, extending service life. Its robust construction withstands the shock loads of uneven terrain.
This component is the heart of the Shacman H3000 Saddle Seat, delivering the reliability and safety that professional drivers expect.
The Yoster 50 is compatible with standard SAE kingpin dimensions and is approved for use in international transport.
This M16 fine-thread bolt (Q151B1650T1F3) is used for secondary attachments on the saddle seat, such as air line brackets and mud flap supports.
It offers the same high-strength properties as the M20 bolts, ensuring durability in all applications. Its fine thread allows for precise torque control.
The bolt is protected with a zinc-nickel coating to prevent corrosion, even in salt-laden environments.
Together with the self-locking nuts and washers, it forms a complete fastening solution for the entire fifth wheel system.
The Shacman H3000 Saddle Seat offers a secure and stable coupling interface that minimizes trailer sway and reduces stress on the chassis. Its precision-engineered components ensure consistent performance.
The combination of self-locking nuts and fine-thread bolts provides a vibration-proof assembly that requires minimal retorquing over long distances.
The corrugated mounting plate and heavy-duty washers distribute loads effectively, preventing distortion of the chassis rail and prolonging vehicle life.
The Yoster 50 fifth wheel’s robust construction and easy maintenance features reduce downtime and increase operational efficiency.
The fifth wheel body and mounting plate are cast and forged from high-grade steel alloys, heat-treated to achieve optimal hardness and toughness.
All fasteners are produced from alloy steel with controlled carbon content, ensuring consistent mechanical properties. Threads are rolled for improved fatigue resistance.
Corrosion protection is achieved through zinc-nickel plating, zinc-chromate, or powder coating, depending on the component, providing long-term resistance to rust and chemicals.
Quality control includes magnetic particle inspection of castings, hardness testing, and torque validation to guarantee every Shacman H3000 Saddle Seat meets the highest standards.
The Shacman H3000 Saddle Seat has been tested to withstand vertical loads exceeding 50,000 kg and horizontal drawbar pull up to 20,000 kg, far exceeding normal operating requirements.
In fatigue testing, the assembly survived over 2 million cycles at full load without any crack initiation or loosening of fasteners.
Salt spray tests (ASTM B117) showed no red rust after 1,000 hours, confirming the effectiveness of the protective coatings.
The fifth wheel’s locking mechanism operates reliably in temperatures from -50°C to +80°C, making it suitable for global operations.
Installing the Shacman H3000 Saddle Seat is straightforward with standard workshop tools. The mounting plate aligns with existing chassis holes, and all fasteners are supplied.
The Yoster 50 fifth wheel comes pre-assembled with its locking mechanism, requiring only bolting to the mounting plate. The fine-thread bolts allow for precise torque application.
Detailed torque charts and step-by-step instructions are provided to ensure correct installation and preload, reducing the risk of errors.
The assembly can be completed in under two hours by a skilled technician, minimizing vehicle downtime.
This saddle seat is specifically designed for the Shacman H3000 chassis, but it also fits many other heavy trucks with standard 50 mm kingpin couplings and similar mounting hole patterns.
It is widely used in long-haul freight, container transport, logging, and heavy haulage where maximum coupling strength is essential.
The Yoster 50 fifth wheel is approved for use with all standard semi-trailers, including flatbeds, box vans, and tankers.
Its robust design also makes it suitable for off-road applications, such as mining and construction, where durability is paramount.
The combination of high-strength materials and advanced coatings ensures that the Shacman H3000 Saddle Seat resists wear, corrosion, and fatigue throughout its service life.
The fifth wheel’s pivot pins and bushings are hardened and lubricated for reduced friction and extended replacement intervals.
The self-locking nuts maintain their prevailing torque even after repeated removal and installation, allowing for maintenance without loss of locking capability.
With proper lubrication, the entire assembly can exceed 500,000 km of trouble-free operation.
Regularly inspect the fifth wheel for wear on the locking jaw, pivot pins, and wear plate. Lubricate all grease fittings with high-quality lithium grease every 5,000 km.
Check the torque of all mounting bolts and self-locking nuts periodically, especially after the first 1,000 km of use. Retorque to the specified values.
Clean the mounting plate and fasteners to prevent salt and dirt accumulation, which can accelerate corrosion.
Replace any damaged or worn components immediately using genuine parts from the Shacman H3000 Saddle Seat kit to maintain safety and performance.
The Shacman H3000 Saddle Seat complies with all relevant safety standards, including ECE R-55 and ISO 1726, ensuring safe coupling and uncoupling operations.
The locking mechanism includes a visual indicator that confirms proper engagement, reducing the risk of accidental uncoupling.
All fasteners are designed to maintain clamp load under extreme conditions, preventing loosening that could lead to catastrophic failure.
Compliance documentation is provided with each unit, facilitating vehicle inspection and regulatory approval.
Investing in the Shacman H3000 Saddle Seat means investing in reliability and safety. Its robust construction reduces unscheduled downtime, keeping your fleet on the road.
The use of high-quality fasteners and self-locking nuts eliminates the need for constant retightening, saving on maintenance labor costs.
The corrugated mounting plate and heavy-duty washers extend the life of the chassis rails by preventing distortion, preserving the vehicle’s resale value.
With the Yoster 50 fifth wheel, you get a coupling system that is trusted by professionals worldwide, ensuring peace of mind on every journey.
| Part Number | Part Name |
|---|---|
| 190003888467 | Self-locking Nut M20×1.5-8-ZN-D980* |
| 190003888467 | Self-locking Nut M20×1.5-9-ZN-D980* |
| Q151B2055T1F3 | Hexagon Head Bolt- Fine Thread |
| 190003888459 | Self-Locking Nut |
| 1-99-907-030 | Washer |
| DZ9112510037 | Washer |
| DZ95189930023 | Corrugated Fifth Wheel Mounting Plate |
| DZ91259933516 | Yoster 50 Fifth Wheel (Jsk35Dvs3-22185) |
| Q151B1650T1F3 | Hexagon Head Bolt- Fine Thread |
Complete System Solution – Our Shacman H3000 Saddle Seat kit includes all necessary fasteners, washers, and mounting plate, eliminating the need for separate sourcing and ensuring compatibility.
Premium Fifth Wheel – The Yoster 50 is renowned for its robust construction and smooth operation, providing years of reliable service even under the heaviest loads.
Corrosion Protection – All hardware features advanced coatings that resist rust and chemical attack, ensuring the assembly remains serviceable and safe in all weather conditions.
Technical Guidance – We provide comprehensive installation manuals and support to assist you with any questions regarding the Shacman H3000 Saddle Seat, ensuring a hassle-free experience.
The Shacman H3000 Saddle Seat is the ultimate coupling solution for your heavy-duty truck, combining a rugged fifth wheel, a sturdy mounting plate, and all necessary high-quality fasteners in one complete package.
Whether you are replacing a worn fifth wheel or building a new vehicle, this assembly delivers the performance, safety, and longevity that Shacman trucks are known for. Its precision engineering ensures a perfect fit.
Order your Shacman H3000 Saddle Seat now and benefit from fast delivery and expert support. Trust the original to keep your trailers securely hitched.
Invest in quality, invest in safety – choose the Shacman H3000 Saddle Seat for your fleet today. It’s the smart choice for professional truckers worldwide.
Shacman is mainly engaged in a full range of commercial vehicles such as heavy military off-road vehicles, heavy trucks, medium and light trucks, mini vehicles, refrigerated vehicles, and sweepers. We are a supplier focusing on Shacman heavy trucks.
{Shacman Spare Parts}
Contact us now！
High Quality Shacman Parts Supply：Spare Parts for Shacman X3000,X5000,X6000,F3000,M3000,H3000,L3000
WhatsApp Us
🟢 Online | Privacy policy
WhatsApp us
