FAW Front Bumper: Deconstructing the 9 Critical Components and Assemblies

Welcome to this critical deconstruction of the FAW Front Bumper assembly. This is the complete, multi-part “fascia” and structural protection system for the FAW Jiefang CA4251P66K24T1A3E5 6×4 diesel semi-trailer tractor. This assembly is the “face” of the vehicle, defining its aesthetics and providing its first line of defense.

The FAW Front Bumper is not a single piece, but a modular assembly. Its function is threefold: it provides the primary aerodynamic profile for the front of the truck, it houses critical components like fog lights, and, most importantly, it is engineered to absorb and distribute impact energy, protecting the truck’s chassis and critical cooling components (like the radiator and intercooler) from damage.

This in-depth guide is an essential resource for professional body shop technicians, fleet managers, and parts specialists. We will deconstruct the entire FAW Front Bumper system into its 9 serviceable components, including the main ‘Left’ and ‘Right’ bumper sections, the heavy-duty steel mounting brackets, and all associated fasteners.

Core Components: The Bumper Assemblies (Left & Right)

The “skin” of the FAW Front Bumper is a two-piece assembly, designed for cost-effective repair. This is a critical design “logic” for any fleet vehicle.

• **’Bumper left part assembly’ (2803035-91W):** This is the main left-hand (driver’s side) section of the FAW Front Bumper.
• **’Bumper right part assembly’ (2803040-91W):** This is the main right-hand (passenger side) section.

This modular, two-piece design is a significant advantage. In a minor “corner” collision, which is common in tight urban or loading-dock environments, only the damaged section (e.g., the ‘Bumper right part assembly’) needs to be replaced, rather than the entire, full-width FAW Front Bumper. This drastically reduces repair costs and vehicle downtime.

These assemblies are typically made from a combination of materials. The outer “skin” is often a durable, paintable polymer (plastic) for aerodynamics and aesthetics, while the inner, unseen structure is a heavy-gauge, stamped-steel reinforcement bar. This “reinforcement” is the true protective element of the FAW Front Bumper, designed to crumple in a specific, controlled way to absorb impact energy.

The “Bones”: Left (2803281-91W) & Right (2803282-91W) Brackets

If the bumper assemblies are the “skin,” the ‘Front bumper left bracket’ (2803281-91W) and ‘Front bumper right bracket’ (2803282-91W) are the “bones.” These are the critical, high-strength structural components of the FAW Front Bumper.

These brackets are forged or fabricated from heavy-duty steel. Their function is to connect the entire FAW Front Bumper assembly to the main chassis frame rails of the truck. They are the “logic” that transfers impact forces *away* from critical components and *into* the vehicle’s frame, which is designed to handle them.

These brackets must be incredibly rigid to prevent the FAW Front Bumper from “flexing” or “vibrating” at highway speeds, which would cause fatigue and eventual cracking. They also provide the primary alignment points. A minor bend in one of these brackets, while not always visible, will cause the entire FAW Front Bumper to appear crooked, with uneven gaps to the grille and headlights. They are secured to the chassis with the heavy-duty ‘Combination Bolt’ (CQ1461045) fasteners.

The Trim: Upper Straps (2803031-91W & 2803032-91W)

The ‘Left upper strap – front bumper’ (2803031-91W) and ‘Right upper strap – front bumper’ (2803032-91W) are the finishing components of the FAW Front Bumper. These are not the main “straps” that hold the bumper on, but are rather “trim” or “filler” pieces.

Their function is primarily aesthetic and aerodynamic. They are designed to “bridge the gap” between the top edge of the main FAW Front Bumper and the bottom edge of the truck’s main grille or headlight assemblies.

By closing this gap, they create a smooth, uninterrupted surface for air to flow over. This “logic” prevents air from being “trapped” behind the bumper, which would create aerodynamic drag and reduce fuel efficiency. These trim pieces are typically held in place by the 22 ‘Cross recessed pan head screw assembly’ (Q2360616B) fasteners, indicating they are a “non-structural” but essential part of the FAW Front Bumper‘s design.

The Fastener System: A Vibration-Proof Assembly

The FAW Front Bumper is held together by a large set of specialized, vibration-resistant fasteners. This is not a “one-size-fits-all” system.

**’Cross recessed pan head screw assembly’ (Q2360616B) – 22 units:** These are the “light-duty” fasteners. The “assembly” (combination) design means they have a pre-installed lock washer. These are used to attach the non-structural, aesthetic parts like the ‘Upper straps’ (2803031-91W) and other trim.

**’Combination Bolt’ (CQ1461045) – 8 units:** These are heavy-duty, M10 bolts. The “combination” design with a captive spring-lock washer is critical. These 8 bolts are almost certainly the main fasteners used to secure the two ‘Front bumper brackets’ (2803281-91W & 2803282-91W) directly to the truck’s main chassis frame rails.

**’Combination Bolt’ (CQ1460830) – 6 units:** These are slightly smaller, M8 bolts. These 6 bolts are likely used for the “structural-to-structural” connection of the FAW Front Bumper, attaching the main ‘Bumper left/right part assemblies’ to the steel brackets.

This three-tiered fastener system is the “logic” that ensures the FAW Front Bumper is both serviceable (for the trim) and structurally sound (for the main brackets), with every connection protected against the constant vibration of a heavy-duty diesel engine.

FAW Front Bumper Parts List

The following table provides the complete, detailed breakdown of all 9 components identified in the ‘Front Bumper (1)’ diagram for the FAW CA4251P66K24T1A3E5 tractor. This FAW Front Bumper is a complete modular assembly.

Technical Specifications and Assembly Context

The specifications for the FAW Front Bumper are defined by its function as a modular, structural, and aerodynamic assembly. The FAW Front Bumper is the first line of defense for the vehicle.