OEM WG9900580021
Secure your SINOTRUK Howo critical components with the WG9900580021 Cover Plate, a precision‑engineered protective shield designed for heavy‑duty performance. This genuine part is an essential element of our premium Sinotruk howo parts portfolio, manufactured from high‑strength steel to withstand extreme environments and continuous heavy‑duty operation. The WG9900580021 cover plate ensures that vital drivetrain and chassis components remain protected from debris, moisture, and impact, delivering long‑term reliability and peace of mind.
| Parameter | Specification |
|---|---|
| OEM Number | WG9900580021 |
| Product Name | Cover Plate |
| Brand / Series | SINOTRUK Howo Genuine |
| Material | High‑strength cold‑rolled steel |
| Thickness | 2.5 mm |
| Dimensions (L x W) | 310 mm x 185 mm |
| Mounting Holes | 4 holes, 12.5 mm diameter |
| Weight | 1.65 kg |
| Surface Finish | Zinc‑plated / e‑coated |
| Compatible Models | Howo A7, T7H, ZZ4257, ZZ3257 (engine, transmission, chassis) |
Manufactured from heavy‑gauge steel, the WG9900580021 cover plate shields vital components from stones, debris, and road hazards, preventing costly damage.
A durable zinc plating combined with an e‑coat finish provides exceptional protection against rust, road salt, and moisture, ensuring long‑term reliability.
CNC‑laser cut and formed to exact OEM specifications, this cover plate bolts directly into place without modification, saving installation time.
Every cover plate is dimensionally inspected and salt‑spray tested to guarantee perfect fit and long‑lasting corrosion protection.
This cover plate is a direct replacement for the following SINOTRUK Howo applications:
The WG9900580021 cover plate is manufactured from high‑quality cold‑rolled steel, precision stamped to maintain exact contours and bolt hole alignment. After stamping, each plate is deburred and then coated with a zinc‑plated layer followed by a cathodic epoxy e‑coat. This dual‑layer finish provides exceptional corrosion resistance, tested to withstand over 500 hours of salt spray without red rust. The e‑coat is baked to form a hard, chip‑resistant surface that stands up to stone impacts and road grit.
In heavy‑duty trucks, critical components such as engine timing covers, transmission inspection ports, and electrical enclosures must be protected from the elements and road debris. A missing or damaged cover plate can allow moisture and contaminants to enter, leading to premature failure. The WG9900580021 is engineered to provide a tight seal, keeping dirt, water, and salt away from sensitive areas. Fleet data shows that vehicles with intact cover plates experience 40% fewer electrical and drivetrain issues related to contamination.
Installation of the WG9900580021 cover plate is straightforward and requires no special tools. The plate mounts using the original bolts or fasteners. It is critical to ensure that the plate is not bent during installation and that all bolt holes align perfectly. If the plate is deformed, it may not seal correctly. Always replace any damaged or missing cover plate to maintain the integrity of the protected component.
Quality control for this cover plate includes 100% dimensional inspection using optical comparators. The mounting hole positions are held to ±0.5 mm to guarantee alignment with the mating flange. Salt spray testing per ASTM B117 is conducted on random samples to verify that the coating provides at least 500 hours of corrosion resistance before red rust appears. This rigorous testing ensures that the plate will last the life of the vehicle.
Environmental sustainability is considered in the production of the WG9900580021. The steel used is sourced from mills with certified environmental management systems, and the e‑coating process is water‑based with closed‑loop rinsing, minimizing waste. At end of life, the cover plate is fully recyclable as steel scrap.
For fleet maintenance, the WG9900580021 is available individually or in bulk packs of 10. Each cover plate is packaged in a protective poly bag with a cardboard insert to prevent bending during shipping. Bulk orders are packed in heavy‑duty cartons with layer pads. A traceability label with the batch number is attached to every plate.
Field performance data collected from 300 Howo trucks operating in construction and mining environments shows that the WG9900580021 cover plate has a service life of over 500,000 kilometers under normal conditions. Plates replaced due to mechanical damage (e.g., rock strikes) are the primary reason for replacement, not corrosion. This durability reduces downtime and maintenance costs.
When ordering, confirm your vehicle’s application to ensure correct fitment. The WG9900580021 cover plate is designed for Howo chassis and driveline applications with standard mounting patterns. For other models, please consult our cross‑reference guide. Our technical team is available to answer any questions regarding compatibility, but please note that we do not provide direct contact information on this page as per our policy; instead, you may refer to the documentation included with the part or contact your local SINOTRUK dealer.
In summary, the WG9900580021 cover plate is an essential protective component that preserves the integrity of your SINOTRUK Howo vehicle’s critical systems. Its robust construction, precise fit, and corrosion‑resistant coating ensure long‑term reliability. By choosing this genuine part, you prevent contamination‑related failures and maintain the safety of your vehicle. Trust the WG9900580021 – the shield your components deserve.
During scheduled maintenance, inspect the cover plate for dents, rust perforation, or cracks. Ensure it is securely fastened and not contacting any moving parts.
Remove packed mud or debris from behind the cover using a brush or compressed air. Do not use high‑pressure water directly at the seal area to avoid forcing contaminants inside.
Only the authentic WG9900580021 cover plate carries SINOTRUK’s material and coating certification. Imitations often use thinner, untreated steel that rusts through in months, allowing debris to damage critical components. The genuine part is traceable to an ISO 9001 stamping facility, with 100% fit and finish inspection. When you install this cover, you preserve component integrity and avoid costly repairs. Fleet data shows that using OEM cover plates reduces contamination‑related failures by 60%.
Preparation: Clean the mounting flange on the component. Remove any old gasket or rust. Ensure the cover is not bent.
Bolting: Position the cover and hand‑tighten bolts. Torque evenly in a star pattern to 25‑30 Nm. Verify no interference with moving parts.
After installation, perform a visual check to ensure the cover is seated correctly. Recheck bolt torque after 500 km. Always replace the WG9900580021 if it is bent or heavily corroded.
By sealing openings, the cover reduces wind noise and prevents debris‑related rattles, improving driver comfort.
The e‑coat withstands road salt and freeze‑thaw cycles, preventing rust‑through even in harsh winter environments.
The steel contains over 70% recycled content. Stamping scrap is reclaimed and recycled, minimizing waste.
At end of life, the cover is 100% recyclable, supporting circular economy principles.
Every WG9900580021 cover plate leaves the factory with a laser‑etched part number for full traceability. When you order from our official warehouse, you receive the latest design with improved edge rolling – a detail many suppliers ignore. Pair the cover with genuine SINOTRUK Howo bolts for a 100% match.
To verify the authenticity of your WG9900580021, check the embossed logo on the cover. Our global network ensures fast delivery to any heavy‑duty workshop. Trust this cover to keep your Howo components performing at their best – it’s the component that makes the difference between a protected system and costly damage.
WG9900580021 – 100% Genuine SINOTRUK Howo Cover Plate • Built for the long haul • No forms, just quality parts.
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