The part system for the HOWO MAX 4X2 tractor is a comprehensive wheel arch and mudguard assembly that protects the cab and chassis from road debris, mud, and water spray. This genuine HOWO Fender kit includes the upper right and left wheel covers, mudguards, all necessary brackets, and a full set of high-strength fasteners – ensuring a precise, durable, and corrosion-resistant installation. When you choose authentic Howo Parts, this Fender assembly guarantees OE fitment and long-term protection. Below are detailed descriptions of every component included with this Fender system.
The upper right wheel cover is a precisely moulded plastic panel that fits over the right-side wheel arch, shielding the cab body from stones and mud. This Fender component is made from UV-stabilised ABS with a textured finish, matching the original factory appearance. It includes integrated mounting points for the mudguard and brackets.
Two mudguards (YG1671230188 and YG1671230187) are supplied for the left and right sides, forming the primary splash-shield of The part system. These mudguards are made from flexible, impact-resistant rubber with reinforced edges, designed to deflect water and debris away from the chassis and fuel tanks.
Twelve A-type spring nuts are used to secure the trim panels and mudguards. These spring steel clips provide a captive threaded insert, allowing fast and secure attachment of The part components without the need for separate nuts, simplifying installation and reducing assembly time.
Two middle brackets are provided to support the centre section of The part system. These brackets are stamped from 3mm steel with a zinc-nickel coating, providing robust mounting points for the wheel covers and mudguards, and ensuring they remain stable under high-speed airflow.
Multiple M8 flange bolts are supplied in various lengths to secure the brackets, wheel covers, and mudguards. These bolts feature an integral flange that distributes clamping load evenly and eliminates the need for separate washers. They are made from grade 8.8 steel with a zinc-plated finish for corrosion resistance. Torque these fasteners to 25 Nm for a vibration-proof hold.
A total of 46 large washers (in various counts) are supplied to distribute the clamping load under bolt heads and nuts across the plastic and sheet metal components of The part system. These washers are made from hardened steel with a zinc coating, preventing damage to the mounting surfaces and ensuring even pressure distribution.
Sixteen M8 flange nuts (10 + 4 + 2) are provided to secure The part brackets and mudguards. The flange acts as a built-in washer, providing a large bearing surface and a self-locking action that resists loosening under vibration. These nuts are torqued to 25 Nm and are essential for the long-term integrity of The part assembly.
Two rear brackets secure the rear section of The part system to the chassis. These brackets are formed from heavy-gauge steel with a black e-coat finish, providing additional support and ensuring the mudguards remain correctly positioned even at high speeds.
Eight M10 flange bolts (4 + 4) are used for the main structural connections of The part system, such as the mounting of the middle and rear brackets to the chassis. These bolts are grade 8.8, torqued to 40 Nm, and feature an integral flange that eliminates the need for separate washers, providing a strong, vibration-proof fastening.
Twenty self-tapping screws with a hexagon flower pan head are used to attach the plastic wheel covers and trim panels of The part system. These screws are made from case-hardened steel with a phosphate coating, providing strong thread engagement in the plastic panels without pre-drilling. They are designed for quick installation with a socket driver.
The upper left wheel cover is the mirror-image counterpart of the right cover, designed to fit the left-side wheel arch. This Fender component is identical in material and construction, ensuring a symmetrical appearance and consistent protection for both sides of the vehicle.
The left front bracket secures the front section of the left-side Fender system. It is made from the same high-strength steel as the right front bracket, with pre-drilled mounting holes that align with the chassis and the wheel cover, ensuring precise alignment and stability.
The right front bracket provides the same mounting function for the right side. Together with the left front bracket, these components complete the front attachment points of The part system, ensuring that both mudguards and wheel covers are firmly secured against road vibration and wind forces.
Fender – genuine HOWO complete wheel arch and mudguard kit for MAX 4X2
This Fender kit provides both upper wheel covers and robust mudguards, offering complete protection for the cab sides and chassis. The part system prevents stone chips, mud, and water spray from damaging the paintwork and underbody components.
All brackets in this Fender kit are manufactured from high-strength steel with corrosion-resistant coatings. The part fasteners are grade 8.8 or 10.9, ensuring that the mudguards and covers remain securely attached even under severe vibration and high-speed driving.
The wheel covers and mudguards in this Fender kit are made from UV-stabilised materials that resist fading, cracking, and warping from prolonged sun exposure. The part system maintains its appearance and integrity for the life of the vehicle.
Every component of this Fender kit is manufactured to SINOTRUK’s original specifications, guaranteeing a perfect fit without modification. The part brackets, covers, and mudguards align with the factory mounting points, making installation straightforward.
The part system is designed to provide a durable barrier against the harsh environment encountered by heavy trucks. The upper wheel covers are precision-moulded from high-impact ABS plastic with a textured finish that matches the cab’s exterior. The mudguards are made from a flexible rubber compound that resists tearing and abrasion, with a reinforced lower edge that prevents flapping at speed.
The brackets are laser-cut and formed from 3mm steel, then zinc-nickel plated to withstand corrosion from road salts. The A-type spring nuts and flange bolts are selected for their ability to maintain clamping force under thermal cycling and vibration. The entire Fender system is designed for easy removal and replacement, allowing quick access to the wheel area for maintenance.
Regular inspection of The part system is recommended to ensure that all fasteners remain tight and that the mudguards are free from cracks or tears. A well-maintained Fender system protects the cab’s paintwork and the chassis from premature corrosion, contributing to the vehicle’s resale value.
Before installation, clean the mounting surfaces on the chassis and cab. Begin by attaching the left and right front brackets to the chassis using the M10 flange bolts and large washers, torquing to 40 Nm. Install the middle brackets and rear brackets in the same manner. Position the upper wheel covers onto the brackets and secure them using the M8 flange bolts,
large washers, and flange nuts (torque to 25 Nm). Attach the mudguards to the brackets and wheel covers using the A-type spring nuts and tapping screws. Ensure all panels are aligned and the mudguards hang vertically without rubbing against the tyres. Check all fasteners for tightness after installation. The part system is now ready for service.
If a mudguard becomes loose or starts flapping, check the bolts and A-type spring nuts for tightness; retorque as necessary. A cracked wheel cover should be replaced to prevent water ingress behind the panel. If The part system produces a rattling noise, inspect the brackets for loose fasteners or missing rubber isolators (if applicable).
Corrosion on the bolts can be prevented by using anti-seize compound on the threads during installation. If a mudguard is torn, it must be replaced to maintain effective splash protection. Always use genuine Fender components to ensure correct fit and durability.
Inspect The part system every 50,000 km or during routine chassis lubrication. Check all bolts and nuts for tightness, retorque if necessary. Wash the mudguards and wheel covers with a hose to remove accumulated dirt and salt.
Inspect the plastic covers for cracks and the mudguards for tears; replace any damaged components. Lubricate the pivot points of the brackets if they are hinged. Keeping The part system clean and well-maintained ensures it continues to protect the vehicle effectively.
This Fender kit is specifically designed for the HOWO MAX 4X2 tractor and is compatible with all production years from 2018 onward. It fits both MC11 and MC13 engine variants. The part system is also suitable for SITRAK C7H and HOWO T7H models that share the same chassis and cab architecture.
It is not compatible with older A7 or WD615 models, which have different wheel arch dimensions and bracket positions. Always verify your vehicle’s chassis type before ordering The part kit.
Aftermarket Fender components often use thinner plastics that crack easily or inferior rubber that rots within months. Generic brackets may not have the correct hole spacing, requiring drilling that can weaken the chassis. Non-genuine fasteners can corrode and seize, making removal difficult.
A damaged Fender system can allow water and salt to reach the cab sills and fuel lines, accelerating corrosion and potentially causing fuel system leaks. Genuine HOWO Fender components are manufactured to SINOTRUK’s exacting standards, using high-quality materials and precision-engineered fasteners. The small additional cost of a genuine Fender kit is insignificant compared to the cost of repairing rust damage or replacing a fuel tank.
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