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Driver Seat – Premium HOWO A7 8X4 Complete Air Suspension Seat Kit

The Driver seat is a complete air suspension seating system for HOWO A7 8X4 tractor trucks. This comprehensive kit includes the HOWO chair assembly, Air bag switch, Adjust plate, Toothed plate assembly, Limit device, Valve, Spring, Balance spring, Return spring, Slide assembly, HOWO air suspension seat assembly, Shim, Hex screw, Hex nut, and Washer – all precision‑engineered to provide superior comfort, support, and durability for the driver during long hauls. The Driver seat ensures that drivers remain comfortable and alert, reducing fatigue and improving overall safety.

The Driver seat is engineered to OEM specifications, using high‑strength materials and precision manufacturing. It provides a robust solution for all seating components, from the air suspension base and adjustable mechanisms to the control valves and fasteners. The Driver seat is a direct replacement for the original factory seat, restoring the vehicle’s comfort and ergonomic performance.

When you choose authentic howo Parts, you receive a Driver seat that meets all OEM quality standards. This kit is manufactured using corrosion‑resistant materials and precision‑formed components, ensuring long‑term durability and a perfect fit. The Driver seat is essential for maintaining driver comfort, reducing fatigue, and enhancing the overall driving experience of your HOWO A7 8X4.

The Driver seat is the trusted choice for professional drivers and fleet operators. With the Driver seat, you ensure reliable seating support, adjustable comfort, and a factory‑grade finish for your HOWO A7 8X4. This Driver seat is an indispensable part of any cab interior restoration or comfort upgrade project.

HOWO Chair Assembly

The HOWO chair assembly is the main seating unit, featuring a high‑back design with integrated lumbar support and adjustable headrest. Manufactured from durable materials with a wear‑resistant fabric cover, it provides exceptional comfort and support for the driver. The chair is designed to withstand the rigors of heavy‑duty trucking, with robust construction that maintains its shape and function over thousands of hours of use. This assembly is the foundation of the Driver seat, offering a comfortable and ergonomic seating position.

Air Bag Switch

The Air bag switch is a pneumatic control that allows the driver to adjust the air suspension pressure within the seat. This enables fine‑tuning of ride height and damping characteristics to suit individual driver preferences and weight. The switch is ergonomically positioned for easy access, allowing for on‑the‑fly adjustments during long drives, contributing to the overall comfort and adaptability of the Driver seat.

Adjust Plate

The Adjust plate is a precision‑formed metal component that allows for fore‑aft and height adjustment of the seat. It is designed to engage with the slide assembly and locking mechanisms, providing a secure and stable adjustment range. This plate ensures that the Driver seat can be positioned to accommodate drivers of various sizes, enhancing comfort and control.

Toothed Plate Assembly

The Toothed plate assembly is a locking mechanism that engages with the adjust plate to secure the seat in the desired position. It features precision‑cut teeth that provide a positive, rattle‑free lock, ensuring that the seat remains firmly in place even under heavy braking or rough road conditions. This assembly is essential for the safety and stability of the Driver seat.

Limit Device

The Limit device is a mechanical stop that restricts the travel of the seat adjustment mechanisms, preventing over‑extension and protecting the seat from damage. It is designed to provide a smooth and controlled range of motion, ensuring that the Driver seat operates within its safe and functional limits. This device contributes to the long‑term durability of the seat system.

Valve

The Valve is a pneumatic control component that regulates the flow of air to the lumbar support system. It allows the driver to adjust the firmness of the lumbar cushion, providing personalised lower back support that reduces fatigue and improves posture. This valve is a key feature of the Driver seat, enhancing comfort during extended driving sessions.

Spring

The Spring is a small coil spring used to provide return force and tension within the seat adjustment mechanisms. It ensures smooth and consistent operation of the adjust plates and locking devices, contributing to the overall reliability and ease of use of the Driver seat. This spring is a vital component for maintaining proper seat function.

Balance Spring 27

The Balance spring 27 is a torsion spring that provides counterbalance force to the seat’s tilt and recline mechanisms. It helps the driver adjust the seat angle with minimal effort, maintaining a comfortable and upright driving posture. This spring is essential for reducing driver fatigue and ensuring that the Driver seat remains responsive and adjustable.

Return Spring

The Return spring is a coil spring that returns the seat adjustment mechanisms to their default positions when released. It ensures that the seat controls operate smoothly and consistently, providing a positive feel and reducing wear on the adjustment components. This spring is a key element of the Driver seat’s user‑friendly design.

Slide Assembly

The Slide assembly is a precision‑engineered track system that allows the seat to move forward and backward. It features low‑friction bearings and a robust locking mechanism that secures the seat in any position. The slide assembly is designed for smooth, quiet operation and long‑term durability, providing the foundation for the Driver seat’s adjustability.

HOWO Air Suspension Seat Assembly

The HOWO air suspension seat assembly is the complete base unit that provides the primary suspension and damping for the Driver seat. It includes the air bellows, damper, and height control valve, offering a smooth, cushioned ride that isolates the driver from road vibrations. This assembly is the core of the Driver seat’s comfort system, significantly reducing driver fatigue.

Shim

The Shim is a thin, flat washer used to adjust the alignment and clearance of the seat mounting points. Manufactured from steel with a protective coating, it provides precise spacing that ensures a secure and rattle‑free installation. This shim is essential for the proper fit and function of the Driver seat.

Hex Screw

The Hex screw is a high‑quality fastener with a cylindrical head and hexagon socket drive, ideal for applications requiring a flush or recessed installation. Manufactured from zinc‑plated steel, it offers excellent corrosion resistance and a secure, vibration‑proof connection. This screw is used to secure various components of the Driver seat.

Hex Nut

The Hex nut is a standard hexagonal nut that provides a reliable, vibration‑resistant fastening for the hex screw. Manufactured from steel with a corrosion‑resistant coating, it ensures a secure connection that maintains clamping force under extreme conditions. This nut is a fundamental hardware component of the Driver seat.

Washer

The Washer is a large‑diameter flat washer that distributes clamping load evenly under bolt heads and nuts. Manufactured from steel with a protective coating, it prevents damage to the mounting surfaces and ensures a secure, rattle‑free connection. This washer is used in critical mounting points of the Driver seat to maintain proper torque and load distribution.

Driver seat - HOWO A7 8X4 Complete Air Suspension Seat Kit

Driver seat – Complete Air Suspension Seat Kit for HOWO A7 8X4

Product Parameters of Driver Seat

Material Encoding Name
WG1642510005 HOWO chair assembly
WG1642510005+00 Air bag switch
WG1642510001+00 Adjust plate
WG1642510001+00 Toothed plate assembly
WG1642510001+00 Limit device
WG1642510001+00 Valve
WG1642510001+00 Spring
WG1642510001+01 Balance spring
WG1642510001+01 Return spring
WG1630510002+00 Slide assembly
WG1642510008 HOWO air suspension seat assembly
Q4001OF31 Shim
Q218B082OF31 Hex screw
Q3401B01F31 Hex nut
WG1642930020 Washer

Why Choose Our Driver Seat?

Complete All‑in‑One Seating Solution

The Driver seat includes every component needed for a full seat installation – from the main chair and air suspension base to all adjustment mechanisms, control valves, and fasteners. No additional parts are required, saving time and ensuring compatibility with HOWO A7 8X4 specifications.

OEM Quality and Precision Engineering

Every component of the Driver seat is manufactured to original equipment specifications, guaranteeing a perfect fit and reliable performance. The precision‑engineered air suspension, adjustable mechanisms, and high‑grade materials ensure long‑lasting comfort and support.

Superior Comfort and Adjustability

The Driver seat is designed to deliver exceptional comfort and support, with multiple adjustment options including fore‑aft, height, lumbar, and air suspension damping. This allows drivers to find their ideal seating position, reducing fatigue and improving safety during long hauls.

Global Compatibility and Support

This Driver seat is designed for all HOWO A7 8X4 variants and is backed by our worldwide distribution network. Expert technical support is available to assist with installation and compatibility questions.

Engineering Excellence of the Driver Seat

The Driver seat is the result of extensive research and development to provide optimal driver comfort and support. The air suspension system is tuned to absorb road vibrations and shocks, isolating the driver from the harshness of the road. The lumbar support valve allows for fine‑tuning of back support, reducing muscle strain and fatigue. The slide assembly and adjustment plates are engineered to provide a wide range of motion, accommodating drivers of all sizes.

The spring mechanisms and limit devices work together to ensure smooth, controlled adjustments that stay secure during operation. The balance spring and return spring provide a consistent feel to the adjustment controls, making them intuitive and easy to use. The use of high‑quality materials and corrosion‑resistant coatings ensures that the Driver seat maintains its performance and appearance over many years of service.

The Driver seat is also designed with serviceability in mind – the control valves and springs are accessible for inspection and replacement, and the seat covers can be removed for cleaning. This attention to detail makes the Driver seat a practical and durable choice for any HOWO A7 8X4.

Quality Control and Testing Procedures

Every Driver seat component undergoes rigorous quality inspections. The chair assembly is checked for stitching quality and foam density. The air suspension base is tested for load capacity and damping performance. The control valves are verified for air tightness and smooth operation. The fasteners are sampled for hardness and torque retention.

Random samples are subjected to durability testing, simulating thousands of adjustment cycles and vibration exposure to validate long‑term performance. Salt spray testing confirms the corrosion resistance of all metal components. These tests guarantee that the Driver seat delivers consistent, reliable comfort and support over the vehicle’s lifetime.

Our quality management system is certified to IATF 16949, and each kit is traceable to its production batch, ensuring full accountability and rapid response to any quality concerns.

Cost‑Effectiveness and Operational Benefits

Investing in a genuine Driver seat prevents driver discomfort and fatigue, which can lead to reduced productivity and increased accident risk. A comfortable, supportive seat is essential for maintaining driver alertness and well‑being during long journeys. The durable construction of the kit also reduces the need for frequent replacements, lowering long‑term maintenance costs.

For fleet operators, this kit simplifies inventory by consolidating multiple seating components into one package. The easy installation and clear component identification reduce workshop time, keeping trucks on the road longer. The improved driver comfort also contributes to driver retention and satisfaction.

The Driver seat is a strategic investment that enhances vehicle reliability, driver comfort, and overall operational efficiency. By restoring the seat to factory specifications, you ensure a comfortable and professional environment for your drivers.

Seamless Integration and Easy Maintenance

The Driver seat is designed as a direct replacement for the original factory seat. All mounting points, bolt patterns, and electrical connections match the existing cab structure, requiring no modifications. The installation can be completed with standard workshop tools by any competent mechanic.

Routine maintenance is straightforward – the air suspension can be inspected for leaks, the control valves can be cleaned, and the seat cover can be wiped down with standard upholstery cleaner. The modular design of the Driver seat allows for individual component replacement, reducing repair costs and downtime.

The Driver seat is also compatible with aftermarket accessories such as seat heaters or massage modules, as it provides standard mounting interfaces and power connections. This flexibility makes it a versatile choice for both restoration and customisation projects.

Technical Support and Documentation

Each Driver seat kit is supplied with a comprehensive installation guide that includes torque specifications, assembly steps, and wiring diagrams (where applicable). This ensures that even less experienced technicians can perform a correct and professional installation.

Our technical support team is available to answer any questions regarding the Driver seat, from verifying compatibility to troubleshooting installation issues. We also provide online resources, including video tutorials and FAQs, to assist customers worldwide.

With the Driver seat, you are not just buying a seat – you are investing in a complete comfort solution backed by our commitment to quality and customer satisfaction.

The Driver seat is the definitive solution for restoring or upgrading the seating comfort of your HOWO A7 8X4 tractor. With its complete kit of genuine components – including the chair, air suspension base, adjustment mechanisms, control valves, and all hardware – this system ensures superior comfort, support, and durability for every journey. Choose the Driver seat for your fleet and experience the difference that genuine HOWO quality delivers.

Driver Seat – Genuine HOWO A7 8X4 Complete Air Suspension Seat Kit Engineered for Comfort & Reliability

Online Catalog of SINOTRUK Parts

Learn More

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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