The part are the critical interface between the HOWO MAX 4X2 tractor and the road, providing load support, traction, and ride comfort. This genuine wheels and tires kit includes heavy-duty 22.5 inch wheel assemblies, individual rims, and durable radial tires designed for the demands of long-haul and off-road operations. When you choose authentic Howo Parts, this wheels and tires set guarantees OE fitment and consistent performance. Below are detailed descriptions of every component included with this wheels and tires assembly.
This wheel assembly is a complete unit comprising the disc wheel and the tire, sized 22.5 inches in diameter and 11.75 inches in width. The part assembly features an inner offset of 120mm, a spoke plate thickness of 14mm,
and a centering hub bore of 281mm diameter. The bolt pattern uses a distribution circle of 335mm with 10 mounting holes of 26mm diameter. This wheels and tires component is specifically engineered for the steer axle of the HOWO MAX 4X2, providing excellent load distribution and steering stability. The heavy-duty construction ensures The part can handle the high torque and weight of the MC13 drivetrain. Two such assemblies are supplied for the front steer axle.
The wheel (rim) is a separate steel disc without the tire, intended for use on the drive axles where dual or single tires are fitted. This wheels and tires component is made from high-strength steel with a corrosion-resistant coating, featuring the same bolt pattern as the wheel assembly (10 holes, Φ26, PCD 335mm). The wheel has a 22.5 x 11.75 inch rim size and a center hole of Φ281.
It is designed for mounting radial tires and includes the valve stem hole. Five wheels are supplied in this wheels and tires kit, providing for the rear axles or as spare rims. The wheels are compatible with both tubeless and tubed tire configurations.
The tyres supplied are heavy-duty radial tyres sized for the 22.5 inch wheels. Two distinct types are provided: two tyres designated WG9900610054 and five tyres designated WG9900610001 – both share the same name. These wheels and tires tyres are engineered for on-highway traction, low rolling resistance, and long tread life.
The tyres feature a robust tread pattern that provides excellent grip in wet and dry conditions while minimising road noise. They are rated for high load capacities suitable for the HOWO MAX 4X2’s gross vehicle weight. The tyres are of the tubeless radial construction, offering reduced puncture risk and easy repair. Regular rotation and proper inflation of The part tyres are essential for even wear and maximum service life.
wheels and tires – genuine HOWO wheel and tire assembly kit for MAX 4X2
This wheels and tires kit includes both front steer-axle assemblies and rear rims plus a full set of tyres. With this wheels and tires package, you have everything needed to replace the entire rolling stock of your HOWO MAX 4X2.
The wheels in this wheels and tires kit are manufactured from high-strength steel, with a spoke thickness of 14mm to withstand the high torque and weight of the MC13 drivetrain. The part are designed to meet SINOTRUK’s stringent fatigue and impact standards.
The tyres included are premium radial tyres with low rolling resistance, contributing to fuel efficiency. The part tyres feature a tread design that provides excellent traction and long service life, even under heavy loads.
All wheels and tires components match the original SINOTRUK specifications, with the correct bolt pattern (10xΦ26, PCD 335mm), center bore (Φ281), and offset (120mm). This wheels and tires kit bolts directly onto the HOWO MAX 4X2 hubs without any modification.
The part system on the HOWO MAX 4X2 consists of front steer wheels and rear drive wheels, each designed to handle specific load and steering demands. The front steer axle uses the 22.5×11.75 wheel assemblies with inner offset, providing proper steering geometry and load distribution. The rear drive axles (dual or single) use the separate wheels, onto which the tyres are mounted. The tyres provide the traction and cushioning, while the wheels transmit the driving torque and braking forces. The part assembly is bolted to the hub using ten M22 or M24 studs (not included) through the ten Φ26 holes.
Correct torque on the wheel nuts (typically 450-500 Nm) is crucial to prevent The part from loosening. The centre hole (Φ281) ensures centering on the hub pilot, reducing runout and vibration. The offset (120mm) positions the wheel and tire correctly within the wheel arch, avoiding interference with suspension and steering components. Regular inspection of The part for damage, cracks, or uneven wear is essential for safe operation.
Before installing The part, ensure the vehicle is on level ground and securely supported. Remove the old wheels and tyres using a suitable wheel nut wrench. Clean the hub pilot and wheel mounting surfaces thoroughly to ensure proper centering. Mount the tyre onto the wheel (if not pre-assembled) using a tyre mounting machine, taking care not to damage the bead. For the front steer axle, mount the complete wheel assembly (wheel and tyre) onto the hub, aligning the ten holes with the studs.
Hand-tighten the wheel nuts in a star pattern, then torque to 450-500 Nm in three stages (200 Nm, 350 Nm, then final torque). For the rear drive wheels, repeat the same procedure for each rim. After installation, check the tyre pressure (typically 8-9 bar for steer, 8-10 bar for drive) and adjust as needed. Test drive the vehicle at low speed and check for any vibration or unusual noise from The part. Retorque the wheel nuts after the first 50 km of driving.
If the vehicle vibrates at highway speed, The part may be unbalanced or the wheel nuts may be unevenly torqued. Check the balance of The part and retorque the nuts. If a tyre loses air rapidly, inspect the tyre and wheel for damage or the valve stem for leakage. Cracks in the wheel disc or around the bolt holes indicate fatigue; replace the wheel immediately.
Uneven tread wear on The part suggests incorrect inflation or alignment issues. Rotating The part between axles can even out wear. A wobbly feeling while driving points to a bent wheel; replace it. Always use genuine HOWO wheels and tires components for replacements to guarantee safety.
Inspect The part daily for visible damage, cuts, bulges, or missing valve caps. Check tyre pressure weekly, especially before long trips. Rotate The part between steer and drive axles every 20,000 km to ensure even tread wear. Torque the wheel nuts every 10,000 km or after any wheel removal. Look for cracks in the wheel disc and around the mounting holes; replace any suspect wheel. The tyres should be replaced when tread depth falls below 2mm or when any damage is present.
Keep The part clean from road salt and debris to prevent corrosion. For fleet operators, maintaining a log of wheel and tire service history is recommended.
This wheels and tires kit is specifically designed for the SINOTRUK HOWO MAX 4X2 tractor, applicable to all production years from 2018 onward. The wheel assembly (WG9725610250) is for the front steer axle,
while the wheels and tyres are for the rear drive axles. The kit also fits SITRAK C7H and HOWO T7H trucks with the same axle configuration. This wheels and tires kit is not compatible with older 20 inch wheel systems or with vehicles using different bolt patterns (e.g., 8-hole). Always verify your vehicle’s axle type and bolt pattern before ordering.
Aftermarket wheels may be made from lower-grade steel that fatigues and cracks under load, leading to catastrophic wheel separation. Non-genuine tyres may have incorrect load ratings or poor tread compound, reducing traction and braking performance. The part from copy kits may not have the precise centering bore, causing vibration and premature bearing wear.
Genuine HOWO wheels and tires components are manufactured to SINOTRUK’s exact specifications, using certified steel alloys and premium rubber compounds. The small additional cost of genuine wheels and tires is insignificant compared to the cost of an accident caused by a wheel failure.
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