

Designed for HOWO and Sitrak heavy-duty trucks, the WG1642111021 hinge cover offers a perfect fit and reliable protection. Its robust construction withstands vibration, temperature swings, and road debris, keeping the door hinge mechanism safe from premature failure. Fleet owners and maintenance professionals choose this cover for its consistent quality and easy installation.
The cover is engineered with UV-resistant material and anti-rust coating, providing excellent resistance against rain, snow, and salt spray. It preserves the hinge lubrication and prevents seizing, even after years of operation in harsh environments.
Withstands temperatures from -40°C to +85°C without warping or cracking, ensuring consistent performance across climates.
Precisely matches OEM specifications, with pre-aligned mounting holes and integrated clips for tool-less installation. Saves workshop time and eliminates the need for modifications.
The snap-lock design holds firmly under high vibration, reducing the risk of loosening or falling off during long-haul trips.
| OEM Number | WG1642111021 |
| Product Name | Door left lower hinge cover |
| Material | Reinforced engineering plastic + stainless steel insert |
| Color | Black (textured finish) |
| Weight | 0.38 kg (approx.) |
| Mounting Type | Clip-on / screwless retention |
| Compatible Models | HOWO A7, T7, Sitrak C7H, C9H |
| Operating Temp. | -40°C ~ +85°C |
| Package Includes | 1 x hinge cover, 2 x retaining clips |
Replacing the hinge cover takes less than 5 minutes. Simply align the cover with the hinge bracket, press firmly until the integrated clips engage. No special tools required. Periodic cleaning with mild soap and water keeps the surface clean.
Recommended inspection interval: every 15,000 km or after off-road operation. The cover shows visible signs of wear (cracks or deformation) before any damage occurs to the hinge itself, acting as a sacrificial protector.
Impact-resistant polymer with reinforced ribs. Exceeds OEM impact test standards (ISO 6605).
Affordable protection that extends hinge life, reducing downtime and parts replacement frequency.
This cover directly replaces original part numbers: WG1642111021, 81.61910-0009, and AH164212. Fits left-hand side door lower hinge of HOWO 6×4, 8×4 and Sitrak tractor units. Always verify your hinge type before ordering.
For fleet managers, the Door Left Lower Hinge Cover offers standardized replacement across multiple truck generations, simplifying inventory management.
Every hinge cover undergoes 100% dimensional inspection and material certification. The production process follows ISO 9001:2015 standards, ensuring consistent quality batch after batch. The cover’s surface texture matches the original truck interior, preserving the aesthetic integrity of the cabin.
Real-world feedback from heavy-haul operators highlights the cover’s ability to withstand constant door slamming and cab tilting. Unlike cheaper alternatives, the Door Left Lower Hinge Cover does not become brittle over time, thanks to its advanced polymer blend with glass-fiber reinforcement.
The anti-static property of the material prevents dust accumulation, keeping the hinge area clean and reducing wear on the pivot points. This is especially beneficial for vehicles operating in dry, dusty regions like mining or construction sites.
The packaging includes a QR code linking to the digital installation manual and torque specifications. The Door Left Lower Hinge Cover is backed by a 12-month warranty against manufacturing defects, giving you peace of mind with every purchase.
Whether you are a workshop technician, fleet owner, or independent driver, the Door Left Lower Hinge Cover delivers unmatched protection and fit. It is the smart choice for preserving your HOWO or Sitrak truck’s door mechanism, ensuring safety and reliability mile after mile.
Order the Door Left Lower Hinge Cover today and experience the difference of a precisely engineered hinge cover that protects your investment.
Genuine HOWO / Sitrak aftermarket part – WG1642111021