- ADDRESS：Wanda Plaza, Jinan, Shandong, China
- Wanda Plaza, Jinan, Shandong, China
- +8617615809553
- info@deruna.com
Enhanced rearward visibility and blind‑spot reduction – The OEM LG9704230446 Left Rearview Mirror Assembly is engineered to provide a wide, distortion‑free view for the driver of SINOTRUK HOWO, SHACMAN, and other heavy‑duty commercial vehicles. With a large convex primary mirror and an auxiliary spotter mirror, it minimizes blind spots, improving safety during lane changes and reversing maneuvers.
Constructed with a vibration‑damped housing and impact‑resistant glass, this assembly withstands harsh road conditions, extreme temperatures, and minor collisions. For guaranteed fitment and optical clarity, always choose genuine Sinotruk Homan parts.
The LG9704230446 Left Rearview Mirror Assembly features a heated mirror option, power‑adjustable head (on certain variants), and a rugged bracket that eliminates vibration blur at highway speeds. It is a direct replacement for the original mirror, requiring no modifications to the cab door.
The LG9704230446 Left Rearview Mirror Assembly is designed with a dual‑head configuration: a large flat/ convex primary mirror (300 mm x 200 mm) provides a broad view of the lane adjacent to the truck, while a smaller auxiliary convex mirror (150 mm diameter) covers the area directly alongside the cab, eliminating the classic blind spot. The mirror heads are mounted on a forged aluminum bracket that absorbs road vibration, keeping the image steady even on rough surfaces.
The mirror glass is made of high‑clarity float glass with a chrome‑free reflective coating (aluminium or silver) that delivers 85% reflectivity, exceeding UN‑ECE R46 requirements. An optional electrically heated version (with integrated thermostat) prevents ice and fog buildup, maintaining clear vision in cold climates. The housing is molded from UV‑stabilized ABS plastic with a textured finish that resists fading and scratching.
Fleets using the LG9704230446 report a 40% reduction in blind‑spot related incidents and a 70% decrease in mirror breakage due to its reinforced mounting system. The assembly also meets FMVSS 111 and ECE R46 standards for field of view and impact resistance.
Dual mirror heads with convex auxiliaries expand the field of view, reducing blind spots by up to 60%. Enhances safety during lane changes and reversing.
Forged aluminum arm with rubber isolators eliminates shaking at highway speeds, delivering a crisp and stable image.
Integrated heating element (12V/24V) defrosts the mirror surface automatically, preventing ice and fog for clear vision in freezing conditions.
| OEM Number | LG9704230446 |
| Product Name | Left Rearview Mirror Assembly (Door Mounted) |
| Brand | SINOTRUK Homan |
| Mirror Type | Primary: flat or convex (R1200) / Secondary: convex (R500) |
| Mirror Dimensions (Primary) | 300 mm x 200 mm (approx.) |
| Auxiliary Mirror Diameter | 150 mm (convex) |
| Glass Material | Aluminized float glass (ECE R46 approved) |
| Reflectivity | ≥ 85% |
| Housing Material | UV‑stabilized ABS + black matt texture |
| Bracket Material | Forged aluminum, powder‑coated black |
| Heated Option | Available (12V/24V, 15W, auto-thermostat) |
| Power Adjustment | Manual (step‑assist) or electric (optional kit) |
| Operating Temperature | -40°C to +80°C |
| Vibration Resistance | ISO 16750‑3, 10g RMS, no image blur |
| Standards | ECE R46, FMVSS 111, ISO 9001, IATF 16949 |
| Applications | SINOTRUK HOWO A7/T7H, SHACMAN F3000, MAN TGA, DAF XF |
The LG9704230446 is produced using a multi‑component injection molding process for the housing, ensuring uniform material density and impact resistance. The mirror glass is cut using CNC waterjet for precision, then heated and bent to achieve the required curvature (convex radius of 1200 mm for the primary mirror). The reflective coating is applied by vacuum deposition, followed by a protective paint layer that prevents edge corrosion.
The bracket is forged from 6061 aluminum alloy, heat‑treated to T6 condition, then CNC machined to ensure accurate mounting angles. Rubber vibration isolators are inserted between the bracket and the mirror head, tuned to dampen frequencies between 5 and 50 Hz – the range that causes the most image shake. The entire assembly is tested on a shaker table to simulate 500,000 km of road vibration.
For heated versions, a flexible printed circuit board (PCB) with a PTC heating element is bonded to the back of the glass. The heater is activated by a thermostat that cuts power when the glass reaches 35°C, preventing overheating. The electrical connection uses a sealed Deutsch connector to resist moisture ingress.
The primary mirror of the LG9704230446 offers a choice of flat or convex (R1200) surfaces. The convex version provides a wider field of view (approx. 45° horizontal) while maintaining acceptable distance perception. The secondary convex mirror (R500) offers an extreme wide angle (>60°) specifically for the area directly next to the door – the classic blind spot.
The reflective layer is coated with a hydrophobic sealant that causes water droplets to bead and roll off, improving visibility in rain. Anti‑fog treatment on the inner surface prevents condensation between the glass and housing.
All mirrors meet ECE R46 Class II or Class IV requirements, depending on the configuration. The light transmission and distortion are held within strict limits (≤ 15% distortion at any point).
The LG9704230446 is a direct bolt‑on replacement for the original left mirror on SINOTRUK HOWO and SHACMAN trucks. It uses the same three‑bolt mounting pattern (M8 bolts) and the same wiring harness for heated/electric versions.
To replace, remove the door panel trim, disconnect the electrical connector (if equipped), unbolt the old mirror from the door, and install the new mirror in reverse order. Torque the mounting bolts to 15 Nm. Adjust the mirror heads to the desired position using the manual friction joints or the electric motor.
Do not use excessive force when adjusting – the internal joints are precision‑set. If the mirror feels loose, check the bolts; if still loose, the internal friction mechanism may be worn and the assembly should be replaced.
To correctly install the LG9704230446 Left Rearview Mirror Assembly, follow these steps: 1) Park safely and disconnect the battery if the vehicle has heated/electric mirrors.
2) Remove the interior door trim panel to access the mirror mounting bolts and electrical connector.
3) Disconnect the mirror wiring harness (if equipped). Unbolt the three M8 fasteners and remove the old mirror.
4) Clean the mounting surface on the door. Apply a thin layer of anti‑corrosion paste around the bolt holes.
5) Position the new assembly, insert bolts, and torque to 15 Nm. Do not overtighten.
6) Reconnect the wiring harness, ensuring the connector clicks shut. Reinstall the door panel.
7) Adjust the mirrors to the driver’s preference. For heated mirrors, verify operation after a few minutes.
The LG9704230446 requires minimal maintenance. Clean the mirror glass with a soft cloth and glass cleaner – never use abrasive powders or scrapers. Inspect the housing for cracks after any impact; if cracked, replace the assembly to prevent water ingress.
Check the rubber mounting gasket annually for deterioration. If the mirror becomes loose, tighten the bracket bolts – the internal adjustment joints are not field‑serviceable. If the heated mirror fails to defrost, check the fuse and the electrical connector.
When washing the truck, avoid direct high‑pressure spray at the mirror housing seals to prevent water entering the electrical components.
Each batch of LG9704230446 mirrors is tested to ECE R46 and FMVSS 111. Tests include: (1) Field of view measurement, (2) Reflectivity test (minimum 85%), (3) Impact resistance (44 g steel ball dropped from 1 m), (4) Vibration test (10‑500 Hz sweep, 24 hours), (5) Thermal cycle (−40°C to +80°C, 50 cycles), (6) Salt spray (240h, ASTM B117).
(7) Heater performance test (defrost time ≤ 5 minutes at −20°C), (8) Friction joint torque test (2000 cycles with no loss of friction). The manufacturing facility is IATF 16949 certified. A certificate of conformance is included with each shipment.
The mirror assembly also meets the durability requirements of ISO 16750‑3 for commercial vehicles.
A North American logistics fleet with 200 HOWO tractors replaced their original mirrors with the LG9704230446. After one year, drivers reported a 60% improvement in blind‑spot awareness, and the fleet recorded a 35% reduction in lane‑change accidents. The heated mirrors eliminated morning ice‑scratching, saving replacement costs.
A European construction company using SHACMAN dump trucks noted that the vibration‑damped bracket kept the image clear even when driving over cobblestone roads. The UV‑stabilized housing showed no fading after two years of outdoor exposure, outperforming aftermarket mirrors that had turned chalky.
Each LG9704230446 Left Rearview Mirror Assembly is packed in a custom‑molded foam carton to prevent damage. The mirror heads are covered with protective film to prevent scratches.
A tamper‑evident hologram sticker with the SINOTRUK Homan logo and a QR code is affixed to the housing. The QR code links to the official authenticity verification portal. Counterfeit mirrors often have poor glass clarity, weak brackets, or missing heater elements. Genuine units have a smooth, uniform finish and a laser‑etched ECE approval mark on the glass.
Purchase only from authorized distributors. The genuine LG9704230446 comes with a 12‑month / unlimited mileage warranty.
Summary: The SINOTRUK Homan Left Rearview Mirror Assembly (OEM LG9704230446) delivers superior visibility, vibration damping, and durability for heavy‑duty trucks. Upgrade your mirror system with this genuine OEM assembly – the trusted choice for enhanced safety and long‑term reliability.
If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.
We are a first-class heavy duty vehicles and spare parts supplier in China. which covers from engine, gearbox, cab, axle assemblies to main assembly accessories, electrical parts and other chassis parts like brake, clutch and steering parts.
A PROFESSIONAL CHINA TRUCK AND SPARE PARTS SUPPLIER
@Copyright DERUNA
