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- Wanda Plaza, Jinan, Shandong, China
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DWG1774770004 is the original Sinotruk Howo front lower view mirror assembly (H78L right side) designed for heavy‑duty trucks. This genuine Sinotruk Howo parts unit provides an essential wide‑angle view of the front lower blind spot, significantly enhancing maneuverability and safety in urban and off‑road environments. Manufactured with a robust housing, high‑clarity glass, and precise adjustment mechanism, it guarantees long service life and perfect fitment. As a key chassis component, this mirror assembly meets strict OE standards for vibration resistance, optical quality, and durability, ensuring reliable performance under all operating conditions.
The DWG1774770004 mirror features a rugged ABS plastic housing with a textured black finish that resists UV and weathering. The mirror glass is convex for a wide field of view, mounted on a ball‑joint system that allows precise multi‑directional adjustment. All metal components are zinc‑plated for corrosion resistance.
Dimensions: overall arm length 320 mm, mirror head 180×140 mm. The mounting bracket fits standard Howo mirror posts (H78L right side). Supplied with stainless steel fasteners and anti‑vibration pads, ensuring a rattle‑free installation even on rough terrain.
The DWG1774770004 mirror assembly has undergone 500 hours of salt spray testing and 1 million vibration cycles, ensuring long‑term reliability. The glass is impact‑resistant and meets ECE R46 requirements for field of view. Operating temperature range: -40°C to +80°C.
As a genuine Sinotruk Howo chassis part, it integrates seamlessly with the truck’s existing mirror system, providing the driver with an essential view of the front lower area, drastically reducing blind spots during tight maneuvers.
DWG1774770004 is directly interchangeable with OEM references WG1774770004, AZ1774770004. It fits Howo 70, 76, and T7H models equipped with the H78L cab configuration (right‑hand lower mirror).
Compatible with Sinotruk Howo chassis built from 2008 onwards, including both left‑hand and right‑hand drive variants. The mounting hardware is supplied to ensure a vibration‑free connection.
Remove the old mirror by unscrewing the two M8 bolts. Clean the mounting surface. Position the new DWG1774770004 assembly, align the bracket, and tighten bolts to 25‑30 Nm. Adjust the mirror head to the desired angle and lock the ball joint by tightening the plastic nut.
Regularly clean the mirror glass with a soft, damp cloth – avoid abrasive cleaners. Inspect the pivot points for looseness. If vibration occurs, check the bolt torque and the condition of the anti‑vibration pads. Replace if the mirror head becomes loose or the glass is damaged.
Genuine Sinotruk Howo parts like the DWG1774770004 mirror are engineered to provide perfect fit, optical clarity, and long‑term durability. Non‑genuine mirrors may have poor vibration resistance, distorted glass, or incorrect curvature, compromising safety. Using genuine parts ensures compliance with ECE regulations and maintains your truck’s resale value. The complete range of Sinotruk Howo parts is available through our network, including cabin, engine, gearbox, and chassis components – all manufactured to original specifications.
The DWG1774770004 front lower view mirror is a critical safety element for Howo trucks operating in congested areas. By providing a clear view of the area directly in front of and beside the front bumper, it helps drivers avoid collisions with pedestrians, obstacles, and other vehicles. The convex glass design offers a wider field of view than flat mirrors, and the robust construction withstands the constant vibrations of heavy‑duty use. Regular inspection and replacement of worn mirrors with genuine Sinotruk Howo parts is essential for maintaining optimal visibility and safety.
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