Dongfeng KL truck parts Driver's side storage bin rear bracket assembly 5103926-C3100

Built as a critical load-bearing component for the driver-side storage bin, this bracket assembly is crafted from high-strength low-alloy (HSLA) steel (Q690 grade) with exceptional mechanical properties. The 8mm thick main plate undergoes quenching and tempering treatment, achieving a tensile strength of 690MPa and a yield strength of 590MPa—capable of supporting a static load of 50kg (the maximum storage capacity of Dongfeng KL’s driver-side bin) without deformation. Integrated reinforcing ribs (15mm height, spaced 60mm apart) enhance structural rigidity by 60%, reducing deflection to ≤1mm even when the bin is fully loaded with tools, documents, or personal items. In fatigue testing, it endures 1 million load cycles (equivalent to 300,000km of operation) without cracks, far exceeding the industry standard of 500,000 cycles

Engineered for seamless integration with the Dongfeng KL’s cab interior, the 5103926-C3100 bracket features precision manufacturing processes. The main body is formed via CNC stamping (dimensional tolerance ±0.3mm) and robot welding (weld seam width 6mm, penetration depth 4mm), ensuring uniform stress distribution and eliminating weak points. The mounting surfaces are CNC-machined to a flatness of ≤0.2mm, creating a tight fit with both the storage bin and cab frame—avoiding gaps that cause rattling during vehicle movement. The bolt holes are tapped with high-precision tools (thread tolerance 6H), ensuring smooth assembly with M10 high-tensile bolts (Dongfeng OE 10.9 grade). This precision ensures the storage bin is installed at the optimal angle (5° tilt for easy access), enhancing driver convenience

Optimized to withstand the unique conditions of truck cab interiors—exposed to dust, moisture, and occasional chemical spills—the bracket adopts a multi-layer protective coating system. The primary layer is a zinc-phosphate conversion coating (12μm thickness) for rust priming, followed by a cathodic electrophoretic coating (35μm thickness) that forms a seamless anti-corrosion barrier. The top layer is a matte black powder coating (40μm thickness) with scratch-resistant properties, resisting scuffs from storage bin installation and daily use. This coating system passes 2000-hour neutral salt spray testing (ASTM B117) with no rust or peeling—ideal for drivers who frequently clean the cab with chemical cleaners. The bracket’s edges are deburred and rounded, preventing scratches on the storage bin or driver’s belongings

This storage bin rear bracket assembly is designed for efficient installation and long-term cost savings for Dongfeng KL operators. Its pre-drilled holes and lightweight design (1.8kg) allow a single technician to complete replacement in 45 minutes using only a socket wrench—no specialized tools required. The OE-compatible design ensures the storage bin remains securely fastened, avoiding the loose bin issues common with aftermarket brackets that cause noise (rattling during driving) and potential damage to the cab interior (repair costs up to $300). By supporting the full storage load, it prevents bin deformation and hinge failure (average hinge replacement cost $80+). The high-durability steel and coating extend the bracket’s service life to ≥500,000km—twice that of non-OE alternatives. Backed by a 2-year/250,000km Dongfeng warranty, it provides reliable storage support and predictable maintenance expenses for fleet operations