The seat is the most important element for driver comfort and safety during long hauls. A high quality driver seat reduces fatigue, provides proper lumbar support, and keeps the operator alert. This genuine HOWO main driver seat is the factory original unit for the MAX 4X2 tractor cab. When you choose authentic Howo Parts, you receive a driver seat that matches the exact dimensions, mounting points, and adjustment features of the original equipment.
The main driver seat is a fully adjustable, air suspended seating unit designed for the left side of the cab (right hand drive) or right side (left hand drive). This driver chair features a high density polyurethane foam cushion with a multi layer fabric or vinyl upholstery that resists wear and fading. The backrest is contoured to follow the natural curve of the spine, with adjustable lumbar support that can be inflated or deflated to suit individual drivers.
The unit includes a mechanical or pneumatic height adjustment mechanism that allows the driver to find the optimal position relative to the steering wheel and pedals. The main driver chair is equipped with a mechanical suspension system that absorbs road vibrations, isolating the driver from chassis movement. The suspension has a stroke of 60mm to 100mm and a weight adjustment knob that calibrates the spring rate to the driver’s body weight, ensuring smooth damping across all road conditions.
The driver chair slides forward and backward on a rail system with a locking handle, providing over 200mm of travel. The backrest angle can be adjusted through a range of 20 degrees, and on some versions, the front cushion tilt can also be adjusted.
The main driver chair includes a three point seat belt with a retractor mechanism meeting ECE R16 safety standards. The mounting base is reinforced with steel plates and rubber isolators to withstand collision forces while reducing vibration. All attachment points are designed to work with the existing rails in the HOWO MAX 4X2 cab, and the electrical connectors for heating or occupancy sensors are pre wired for plug and play installation.
Seat – genuine HOWO main driver seat assembly
| Material Encoding | Name |
|---|---|
| YZ167151000018 – Main driver seat | |
This driver chair is shaped to support the natural curves of the spine, with an integrated adjustable lumbar support. The high density foam retains its shape even after years of use, and the breathable upholstery helps keep the driver cool and dry during long shifts, reducing fatigue.
The main driver chair meets ECE R16 and FMVSS 207 safety requirements. The integrated three point seat belt and sturdy mounting base ensure that the driver is securely restrained during sudden braking or collision.
The driver chair slides forward/backward on rails, features height adjustment via air spring, backrest angle adjustment, and on some versions, cushion tilt adjustment. This allows drivers of all sizes to find a comfortable, safe driving position.
This driver chair bolts directly into the existing mounting holes of the HOWO MAX 4X2 cab using the original hardware. No drilling or modifications are required. The electrical connectors for heating or belt sensors match the factory wiring, making replacement quick and error free.
The main driver chair is built with a welded steel frame that is powder coated to resist corrosion. The foam cushion is made from high resilience polyurethane with a density of 55 kg/m³, providing a firm yet comfortable feel that supports long driving hours. The upholstery is available in two options: hard wearing woven fabric or easy clean vinyl; both are UV treated to prevent fading and cracking.
The backrest includes an anti submarining steel pan that prevents the driver from sliding under the belt in a crash. The headrest is height adjustable and integrated into the backrest. The armrest is optional on some variants but can be ordered separately. The suspension uses a parallelogram linkage with a coil spring over shock absorber, providing 80mm of travel and a weight adjustment range of 50-130 kg. The suspension is preloaded at the factory and requires only simple adjustment to match the driver’s weight.
This genuine main driver chair features a mechanical spring suspension with a hydraulic damper. While air suspension chairs offer a slightly smoother ride, mechanical suspension units are more durable and less prone to air leaks,
which is advantageous in dusty or remote environments where compressed air may not be readily available. The mechanical suspension in this driver chair is tuned specifically for the HOWO MAX 4X2 chassis, providing optimal isolation from road vibrations. The damping rate is calibrated to reduce fatigue while maintaining road feel. The suspension is virtually maintenance free, requiring only occasional lubrication of the pivot points.
The main driver chair includes a pneumatic lumbar support system. The driver can inflate or deflate the lumbar bladder using a hand pump located on the right side of the cushion. The bladder is made from medical grade TPU and is covered with a breathable fabric layer.
The lumbar support helps maintain the natural curve of the spine, reducing lower back pain on long trips. In addition, the cushion features a waterfall front edge that reduces pressure on the back of the thighs, improving circulation. The chair also includes a damper for the backrest recline, allowing smooth, stepless adjustment.
Before starting, disconnect the battery ground cable and remove any floor mats. Remove the existing driver chair by unscrewing the four mounting bolts (typically M8 or M10) using a 13mm or 15mm socket. Lift the unit out and disconnect any electrical connectors (heater, occupancy sensor, belt buckle).
Clean the mounting area thoroughly. Position the new main driver chair so that the four mounting holes align with the floor studs. Install the original bolts or new grade 10.9 bolts, torquing to 45 Nm. Connect any electrical harnesses. Reconnect the battery. Sit in the chair and adjust the suspension preload to your weight using the adjustment knob. Test all adjustment levers and the seat belt function. Perform a final torque check after 100 km of driving.
This main driver chair is designed for all HOWO MAX 4X2 tractors with standard or sleeper cab. It fits both left hand drive and right hand drive configurations, with the unit always positioned on the driver side. It is not compatible with the passenger side due to different mounting points and belt anchor locations. For older HOWO 70 series trucks, check the floor mounting pattern as some models use different hole spacing.
To keep the main driver chair in good condition, clean the upholstery regularly with a mild soap solution and a soft brush. Avoid harsh chemicals or abrasive cleaners. Vacuum the crevices to remove dust and debris. Check the seat belt retractor for proper operation every six months.
Lubricate the slide rails with a dry silicone spray if they become stiff. If any stitching comes undone, repair immediately to prevent tearing. The foam cushion may compress over many years; if it becomes too hard, replacement foam can be ordered. The suspension pivots should be lubricated annually with NLGI #2 grease.
If the driver chair does not slide easily, clean the rails and apply a dry lubricant. If the backrest does not lock in position, inspect the tilt mechanism for debris or damage. If the seat belt does not retract, remove the belt and clean the retractor mechanism with compressed air;
do not disassemble the retractor, replace it if necessary. If the upholstery is torn, a professional automotive trimmer can repair it. If the suspension bottoms out, adjust the weight setting to a higher value; if it still bottoms out, the spring may have fatigued and the chair should be replaced. For any structural damage, replace the entire main driver chair with a genuine HOWO unit.
Aftermarket driver chairs often lack proper certification for crash safety. The foam may be lower density, causing discomfort on long journeys. The mounting points may not align correctly, requiring modifications to the cab floor. The fabric or vinyl may fade quickly under African sunlight.
The suspension may be poorly tuned, leading to harshness or bottoming out. Genuine HOWO chairs are built to the exact safety and durability standards of the original vehicle. The fitment is perfect, the materials are automotive grade, and the driver chair meets all regulatory requirements. Investing in a genuine main driver chair ensures the safety and comfort of the driver and protects your vehicle’s resale value.
The main driver chair is manufactured in an ISO 14001 certified facility. The foam contains no CFCs or HCFCs and is recyclable. The steel frame is made from recycled content where possible. The upholstery fabric is Oeko Tex certified, free from harmful substances. The unit complies with ECE R16, FMVSS 207, and other applicable regulations. Using genuine HOWO parts helps maintain your vehicle’s compliance with safety laws in Nigeria and other African countries.
This main driver chair can be ordered using the material encoding YZ167151000018. The unit is supplied fully assembled with the belt and rails. Authorized HOWO dealers in Nigeria stock this genuine driver chair. For bulk orders of five or more, volume discounts are available. Please provide your vehicle’s VIN to confirm compatibility. The driver chair is backed by a 12 month warranty against manufacturing defects.
Fleet owners who have installed this genuine main driver chair report that their drivers are noticeably less fatigued after long trips. The adjustable lumbar support and weight sensitive suspension have been particularly praised. The durability of the upholstery on rough roads has exceeded expectations. Many operators have standardized on this driver chair for all new vehicle purchases, citing the direct fitment and long life as key benefits.
The main driver chair is shipped in a heavy duty cardboard box with foam inserts to protect the upholstery and belt mechanism. The box dimensions are 80cm x 70cm x 50cm, weight 22 kg. Store the unit indoors in a dry area, away from direct sunlight. Do not stack other items on top of the box. If storing for a long period, cover the chair with a breathable fabric to prevent dust accumulation. The unit should be kept upright to avoid deforming the foam.
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