- ADDRESS:Jinan City, Shandong Province
- Wanda Plaza, Jinan, Shandong, China
- +8617615809553
- info@deruna.com


The WG1642111011/6 Shield is a rugged, precision-molded protective cover designed to safeguard critical underbody components on SINOTRUK Howo heavy-duty trucks. As a leading provider of genuine Sinotruk howo parts, we offer this OEM-grade shield as a direct replacement for the original factory component. The WG1642111011/6 shield delivers reliable protection for steering linkages, brake lines, fuel lines, and electrical wiring against stone chips, mud, water spray, and road debris. Manufactured from high-density polyethylene with UV stabilizers and impact modifiers, this shield resists cracking, warping, and chemical attack from road salts, oils, and fuels, ensuring long-lasting defense for your truck’s most vulnerable chassis areas.
The WG1642111011/6 shield is a vital underbody component that prevents premature corrosion and wear of expensive chassis parts, reducing maintenance costs and extending vehicle service life. Its precise fit and robust construction make it a reliable replacement for damaged or missing shields.
OEM direct replacement • High-density polyethylene • UV & chemical resistant • Impact absorbing • Simple bolt-on installation
The WG1642111011/6 is a protective shield engineered to cover and defend essential chassis components of the SINOTRUK Howo A7 and T7H series trucks. Mounted directly to the frame crossmember, this shield acts as a robust barrier that deflects stones, mud, water, and other foreign objects away from sensitive parts such as the steering gear, hydraulic brake lines, fuel supply tubes, and wiring harnesses. This OEM-grade shield precisely matches the original component’s dimensions, mounting points, and reinforcement ribs, ensuring a seamless fit that restores factory-level underbody protection.
Constructed from high-density polyethylene (HDPE) with a specially formulated UV stabilizer package, the WG1642111011/6 offers outstanding resistance to cracking, warping, and chemical degradation from road salts, diesel, and lubricants. Its smooth, non-porous surface allows mud and debris to slide off easily, preventing buildup that can trap moisture and accelerate corrosion. Integrated drainage channels further ensure that water does not pool on the shield, minimizing rust risk to the underlying metal components.
Beyond its protective role, the WG1642111011/6 shield contributes to improved aerodynamic efficiency by smoothing airflow beneath the chassis, which can slightly reduce drag and improve fuel economy – a valuable benefit for fleets operating on long-haul routes. Its black textured finish matches the original underbody trim, maintaining a professional appearance even when viewed during inspections.
This shield is backward-compatible with the earlier WG1642111011/5 revision and is frequently replaced due to off-road impacts, fatigue cracks, or corrosion-related failures. Its lightweight yet durable design makes it a cost-effective solution for preserving the integrity of your HOWO’s chassis systems.
The WG1642111011/6 Shield is specifically designed for the underbody of SINOTRUK Howo A7 and T7H series trucks, including models ZZ4257, ZZ3257, and other variants with the same chassis architecture. It is a direct replacement for the original protective shield and is also compatible with the earlier revision WG1642111011/5.
This shield is used across a wide range of applications, including long-haul freight, regional distribution, construction, mining, and municipal services. In all these environments, the underbody is constantly exposed to stones, mud, water, and corrosive chemicals. The WG1642111011/6 is engineered to withstand these harsh conditions, protecting steering linkages, brake lines, fuel lines, and electrical connectors that are essential for safe and reliable vehicle operation.
When replacing a damaged or missing shield, the WG1642111011/6 provides a perfect fit and match to the factory mounting holes. It is compatible with both standard and heavy-duty chassis versions, and its bolt-on design allows for quick installation using basic hand tools.
For fleets with mixed HOWO models, this part offers a standardized solution that simplifies parts inventory and ensures consistent underbody protection across all vehicles. Always verify the shield location and mounting hole spacing on your specific truck to confirm compatibility, although the WG1642111011/6 fits the majority of A7 and T7H underbody applications.
Installing the WG1642111011/6 shield is a straightforward procedure that can be completed with a socket or wrench set. Begin by safely raising the front of the truck and supporting it on jack stands to provide clear access to the underbody. Locate the mounting position – typically on the chassis frame near the steering gear or fuel lines – and remove any remnants of the old shield.
Clean the mounting surface on the chassis, removing dirt, rust, or old thread-locking compound. Inspect the threaded holes or captive nuts for damage; if any are stripped, repair them before proceeding. Apply a thin coat of anti-seize to the new bolts to prevent future corrosion.
Position the new WG1642111011/6 shield over the mounting points, aligning the holes with the chassis fasteners. Insert the bolts and tighten them evenly to the specified torque (typically 25–35 Nm for M8 bolts, or 40–50 Nm for M10). Ensure that the shield is flush against the chassis and does not interfere with any moving parts or hoses.
For maintenance, regularly inspect the shield for cracks, deformation, or loose bolts. Clean it with a pressure washer or hose to remove accumulated mud and road salt, especially during winter months. If the shield becomes damaged, replace it promptly to maintain protection for the underbody components.
The WG1642111011/6 is designed for long service life, but severe impacts from large rocks or collisions can crack or break it. Regular visual checks during oil changes or routine maintenance are recommended to catch any issues early.
The WG1642111011/6 Shield is manufactured in an ISO 9001-certified facility using advanced injection-molding technology. The HDPE resin is sourced from leading petrochemical suppliers and compounded with proprietary UV stabilizers, impact modifiers, and colorants to meet SINOTRUK’s demanding performance standards.
Each shield undergoes a series of quality checks, including dimensional verification using 3D scanning, impact testing (IK10), and accelerated weathering (2000 hours UV exposure). The bolt-hole positions are checked for accuracy, and the surface finish is inspected for consistency. A random sample from each batch is subjected to chemical resistance testing against common automotive fluids such as brake fluid, engine oil, and diesel fuel.
We back the WG1642111011/6 with a comprehensive warranty against material and workmanship defects. Our quality control ensures that every shield delivers the same level of protection, fit, and durability as the original factory part, giving you confidence in your truck’s underbody integrity.
Choose genuine quality for your underbody protection – choose the WG1642111011/6 Shield.
The WG1642111011/6 Shield is a small but essential component that plays a critical role in preserving the reliability and safety of your SINOTRUK Howo. A missing or damaged underbody shield exposes vital chassis systems – including steering, braking, and fuel delivery – to the harsh elements of the road. Over time, stone impacts, water spray, and road salt can corrode or wear these components, leading to expensive repairs and potentially dangerous failures.
By replacing it with this genuine OEM-grade shield, you restore the protective barrier that keeps your truck’s underbody safe from debris and moisture. The WG1642111011/6 is constructed from tough, chemically resistant HDPE that will not rust, corrode, or become brittle with age, ensuring that your truck remains protected for the long haul.
Fleet operators will appreciate the simple bolt-on installation that reduces labor time and minimizes vehicle downtime – a key factor in high-utilization operations. Owner-operators will value the peace of mind that comes with knowing their underbody components are shielded from the elements, extending the service life of their truck and reducing the frequency of costly repairs.
Invest in the WG1642111011/6 Shield and protect your SINOTRUK Howo’s chassis with the same quality that the manufacturer intended. Its durable construction, precise fit, and corrosion-proof material make it the intelligent choice for drivers who demand reliability and longevity from their heavy-duty trucks.
Order your WG1642111011/6 today and ensure your HOWO truck’s underbody remains protected against the challenges of the road, mile after mile.