Superior visibility and structural integrity for driver corner windows – The OEM WG1642350004 Left Corner Window Glass is engineered to provide clear peripheral vision while maintaining cab strength. This tempered safety glass is designed specifically for the triangular corner opening of SINOTRUK HOWO and SHACMAN cabs.

Manufactured using high-precision bending and tempering processes, it offers excellent impact resistance and optical clarity. For guaranteed compatibility and original equipment quality, always choose genuine Sinotruk Homan parts.

The WG1642350004 Left Corner Window Glass features an integrated dark tint that reduces glare and UV radiation, keeping the driver comfortable during long hauls. Its unique trapezoidal shape with radiused corners ensures a weather-tight seal when installed with the original rubber gasket.

Why the WG1642350004 Left Corner Window Glass Sets the Standard

The WG1642350004 Left Corner Window Glass is not a simple flat piece. It is shaped with a slight curvature that matches the A‑pillar contour of HOWO and SHACMAN cabs, eliminating the need for excessive sealant or bending.

The tempering process creates a surface compression of over 100 MPa, making the glass resistant to road debris and accidental impacts. Upon breakage, it disintegrates into small, blunt granules as required by ECE R43.

Fleet managers using the WG1642350004 report that the precise edge grinding eliminates water leaks and wind noise, two common complaints with aftermarket corner windows. The glass also retains its tint and clarity for over 10 years without fading.

Technical Specifications – SINOTRUK Homan WG1642350004

Engineering Excellence of the WG1642350004 Left Corner Window Glass

The WG1642350004 starts as a precision‑cut piece of high‑quality float glass. It is then washed, drilled (if necessary for certain cab versions), and placed into a tempering furnace where it is heated to 620°C and then rapidly cooled by air jets.

This process creates a balanced stress profile: compressive on the outer surfaces and tensile inside. The result is a glass that can withstand a 227 g steel ball dropped from 2 meters without breaking and, when broken, produces small blunt fragments that minimize laceration risk.

The unique trapezoidal shape is formed using a bending ring that matches the curvature of the truck cab. A mismatched curvature would cause the glass to sit proud of the rubber seal, leading to water leaks at highway speeds. SINOTRUK Homan uses original tooling to ensure the perfect contour.

Optical Clarity and Tinting Technology

The WG1642350004 uses an integral pigmentation method where metal oxides are added to the molten glass before forming. Unlike film‑based tints, this cannot peel, bubble, or discolor over time.

The greenish hue meets European and Chinese regulations for side window light transmittance (minimum 70%) while still rejecting a significant portion of infrared radiation. Drivers appreciate reduced glare during sunrise and sunset, which is critical for safety.

Optical distortion is measured using a transmission fringe pattern and is kept below 0.15 diopters, ensuring that the view through the corner window remains clear and true.

Easy Replacement & Compatibility

The WG1642350004 is a direct replacement for the original left corner window on SINOTRUK HOWO (all series), SHACMAN F2000/F3000, and many CNHTC cabs. It is also compatible with certain Dongfeng and FAW trucks that use the same cab architecture.

Before installation, inspect the rubber gasket for cracks or hardening. A new gasket is recommended for best sealing. The glass does not include mounting holes; it is retained solely by the rubber seal and the window frame.

Always wear heavy gloves when handling the glass, as broken tempered glass can still have sharp edges. Store the new glass vertically until installation.

Installation Guidelines for WG1642350004 Left Corner Window Glass

To replace a damaged left corner window with the WG1642350004, follow these steps: 1) Remove the old glass and rubber gasket. Clean the steel flange of old sealant or rust.

2) Lubricate the new rubber gasket with soapy water or silicone spray. Fit the gasket onto the glass, starting from one corner and working around.

3) Insert a nylon cord into the gasket’s inner channel around the entire perimeter, with the ends overlapping. 4) Position the glass assembly from outside the cab, then pull the cord from inside to seat the gasket lip over the cab flange.

5) Tap the glass gently with a rubber mallet to fully seat it. 6) Check for uniform compression of the rubber seal. Run a water hose test to confirm no leaks.

If any leaks appear, apply a small bead of butyl sealant between the gasket and the flange. Do not use silicone sealant near the glass, as it may stress the tempered edge.

Maintenance & Care

The WG1642350004 requires very little maintenance. Clean with any standard automotive glass cleaner and a soft cloth. Never use abrasive powders or metal scrapers.

Inspect the rubber gasket annually for cracks or hardening; replace the gasket if necessary. Do not apply high‑pressure water directly at the gasket edge, as this may force water past the seal.

If the glass becomes chipped but unbroken, it is still safe due to the tempered design, but a chip larger than 5 mm should be monitored. Replace the glass immediately if any crack propagates from the edge.

Quality Certifications & Rigorous Testing

Every shipment of WG1642350004 undergoes a complete testing regime per ECE R43: (1) Fragmentation test (ensuring at least 40 fragments per 50×50 mm area), (2) Impact resistance test using a 227 g steel ball from 2 m height, (3) Abrasion resistance test (Taber abraser, less than 2% haze after 100 cycles).

Also performed: (4) Humidity and temperature cycling (-40°C to +85°C for 10 cycles), (5) Optical distortion measurement (<0.15 diopters), and (6) Boil test (immersed in 100°C water for 30 minutes to check coating adhesion).

The glass carries the ECE R43 approval mark, DOT 637, and the China CCC logo. The batch number is laser‑etched on the lower corner for traceability back to the production furnace.

Field Performance Feedback

A fleet of 80 HOWO dump trucks operating in a Canadian oil sands mine replaced cracked corner windows with the WG1642350004. After one winter of -35°C temperatures and heavy gravel roads, no breakages or leaks were reported, whereas generic glass had shown a 40% failure rate.

A bus company in India using SHACMAN chassis also adopted the WG1642350004 for their corner windows. They noted that the UV tint reduced cabin temperature by approximately 4°C, improving passenger comfort without increasing AC load.

Packaging & Anti-Counterfeit Protections

Each WG1642350004 Left Corner Window Glass is packed in a custom foam‑lined cardboard box with a “FRAGILE – TEMPERED GLASS” warning. Two layers of foam separate the glass from the box walls.

A tamper‑evident hologram sticker with the SINOTRUK Homan logo is placed on the glass surface. Scanning the QR code leads to the official verification portal. Counterfeit corner windows often have rough edges, missing ECE marks, or an incorrect tint color (too dark or too light).

Genuine WG1642350004 also comes with an installation instruction sheet and a small sample of butyl sealant. Always purchase from authorized dealers to guarantee safety and proper fit.

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Summary: The SINOTRUK Homan Left Corner Window Glass (OEM WG1642350004) offers superior safety, optical clarity, and precision fit for heavy truck cabs. Replace damaged corner glazing with genuine tempered glass – the trusted choice for driver visibility and long‑lasting seal performance.