FAW J6P Side Window Glass: Deconstructing 4 Critical Parts for Flawless Visibility and Sealing

This is a comprehensive technical guide to the FAW J6P Side Window Glass assembly for the FAW Jiefang CA3250P66K2L1T1E 6×4 dump truck. This deconstruction analyzes the 4 primary component types, including the openable window assemblies, the main weather seal strips, and the specialized mounting hardware.

The FAW J6P Side Window Glass assembly is a critical component for both driver safety and cab integrity. Its primary function is to provide the operator with a clear, unobstructed view of the side mirrors and blind spots, a non-negotiable requirement for safely maneuvering a large dump truck. Unlike the fixed windscreen, the side window is an “openable assembly,” providing essential ventilation and a means of communication at job sites.

This deconstruction will analyze the key serviceable components of the FAW J6P Side Window Glass system. This includes the ‘Openable side window assy’ (Comp 2), which contains the glass panel and its frame, and the ‘Seal strip’ (Comp 1), which provides the critical weatherproof seal. A failing FAW J6P Side Window Glass, whether from a cracked panel or a leaking seal, can compromise safety, damage interior electronics, and cause cab corrosion. Every component, including the mounting hardware (Comp 3, 4), is essential for a quiet, dry, and safe cab environment.

Core 1: The “Window Assembly” Logic (The Core Panel)

This group represents the main functional part of the FAW J6P Side Window Glass system. This is the complete, pre-assembled unit that contains the glass and its immediate frame, designed to be installed into the door.

1. Component: ‘Left/Right openable side window assy’ (5403015-A86, 5403020-A86) – Qty 1 each
This (Comp 2) is the complete, serviceable window unit. The Tempered Glass Logic is a key safety feature. Unlike the laminated windscreen, side glass is typically tempered. This means it has been heat-treated and rapidly cooled, causing it to shatter into thousands of small, relatively harmless pebbles upon a severe impact, rather than breaking into large, dangerous shards. This is a critical design choice for the FAW J6P Side Window Glass.

The Openable Assy Logic signifies this is not just the glass, but the entire cassette. This assembly includes the glass panel, its lower mounting channel (which attaches to the window regulator), and the latching mechanism for the small “vent” window, if one is present. The FAW J6P Side Window Glass assembly is engineered for a precise fit within the ‘Seal strip’ (Comp 1) to ensure smooth up-and-down motion without binding or rattling.

Failure of this FAW J6P Side Window Glass component is usually catastrophic (from an impact) or mechanical (failure of the latch or the bond between the glass and its lower channel). A loose glass panel within its channel will cause a severe rattle and can lead to misalignment and damage to the seal strip.

Core 2: The “Sealing” Logic (The Weather Strip)

This component is the primary environmental barrier for the FAW J6P Side Window Glass, responsible for sealing the moving panel against the fixed door frame.

1. Component: ‘Left/Right seal strip – side window glass’ (5403051-A01, 5403052-A01) – Qty 1 each
This (Comp 1) is the main rubber weather strip. The Dynamic Sealing Logic is that this component must perform two functions: it must create an airtight and watertight seal when the window is closed, but it must also provide a low-friction channel for the glass to slide in when opening. This is why the “channel” part of the seal is often “flocked” (covered in a soft, felt-like material) to reduce friction and noise.

The Material Science Logic is critical here. This seal strip is made from EPDM (ethylene propylene diene monomer) rubber, a material chosen for its exceptional resistance to UV radiation, ozone, and extreme temperatures. A cheaper rubber would quickly become hard, brittle, and cracked, leading to seal failure.

Failure of this FAW J6P Side Window Glass seal is the most common cause of cab problems. A cracked or shrunken seal allows water to bypass the glass and enter the inside of the door structure. This water then destroys the power window switch, corrodes the window regulator, and eventually causes the bottom of the door to rust from the inside out. It also creates a high-pitched “whistling” sound at speed, which is a major source of driver fatigue. Replacing this seal is a key part of servicing the FAW J6P Side Window Glass.

Core 3: The “Mounting” Logic (The Fastening System)

This final group includes the hardware used to secure the components of the FAW J6P Side Window Glass assembly to the door’s internal steel frame.

1. Component: ‘Inner hex cylindrical head screw’ (CQ2180620F6) – Qty 4
This (Comp 3) is a high-strength Allen bolt. The Structural Mounting Logic suggests this bolt is used for critical, high-load connections. It is likely the fastener used to secure the main window regulator (the lifting mechanism, not listed) to the inner door frame. Its cylindrical head is low-profile, preventing it from interfering with the interior door trim panel.

2. Component: ‘Cross recessed pan head screw assy’ (Q2360620) – Qty 4
This (Comp 4) is a standard combination screw (with a built-in washer). The Ancillary Mounting Logic means this fastener is used for lighter-duty, secondary components. It is most likely used to secure the ‘Seal strip’ (Comp 1) or other plastic guides and brackets for the FAW J6P Side Window Glass.

Both of these fastener types are critical for a rattle-free FAW J6P Side Window Glass. The constant, high-impact force of a heavy truck door slamming shut will quickly loosen any substandard hardware. These specific bolts are chosen for their vibration resistance. A loose window regulator (due to loose Comp 3 bolts) is a common cause of a “clunking” window that struggles to go up and down.

FAW J6P Side Window Glass: Complete 4-Part Breakdown

The following table provides the complete, detailed breakdown of all 4 component types in the FAW J6P Side Window Glass assembly for the FAW Jiefang CA3250P66K2L1T1E 6×4 dump truck. This list is essential for any service of the FAW J6P Side Window Glass.

Core Specifications

The specifications for the FAW J6P Side Window Glass are defined by its function as an openable, tempered safety glass assembly, providing visibility, ventilation, and environmental sealing for the cab.