Dongfeng GX auto parts left pneumatic strut Upper bracket assembly 5301629-C6200

Built as the critical load-bearing component for the left pneumatic strut, this bracket features a robust design to withstand dynamic and static forces. The main body is forged from Q690 high-strength steel, with a 10mm-thick base and 8mm-thick triangular reinforcing ribs—achieving a static load capacity of 7500N, easily supporting the strut’s 5500N extension force when lifting the cab (up to 800kg) or hood. The forging process enhances material density by 15% compared to stamping, preventing stress cracks. The bracket’s ball joint interface (Φ20mm) is precision-machined to ensure smooth strut rotation, while the rib structure distributes load evenly, limiting deflection to ≤0.7mm under maximum load—avoiding strut misalignment that causes cab/hood jamming

Engineered to resist corrosion in diverse operating environments, the 5301629-C6200 bracket adopts a multi-layer protective system. It undergoes shot blasting (Sa 2.5 grade) to remove surface impurities, followed by a 40μm cathodic electrophoretic primer for uniform rust prevention. The top layer is a 50μm ceramic powder coating with exceptional adhesion (cross-cut test: ISO 2409 0 grade) and corrosion resistance. This system passes 2500-hour neutral salt spray testing (ASTM B117) with no red rust, adapting to coastal humidity, road salt in snowy areas, and construction site dust. The coating also resists UV aging (3000-hour xenon lamp testing) without fading, maintaining structural integrity for ≥800,000km

Optimized to eliminate noise and prevent loosening from vehicle vibration, the bracket integrates dedicated features. A 5mm-thick EPDM rubber bushing is installed between the bracket and strut ball joint, absorbing 60% of chassis vibration (10-500Hz) and preventing metal-to-metal rattling. The mounting bolts use flange nuts with nylon inserts (self-locking torque ≥15N·m), resisting loosening even after 100,000km of off-road or highway operation—avoiding periodic re-tightening. A grease fitting (M6×1) is integrated into the ball joint interface, allowing easy lubrication that reduces friction by 40% and extends the strut’s service life by 35%. The bracket also has a drainage hole to prevent water accumulation and corrosion

This bracket assembly is designed for efficient installation and long-term cost savings. The pre-assembled structure (bracket + rubber bushing + self-locking nuts + grease fitting) allows a single technician to complete replacement in 40 minutes using only a torque wrench (target torque: 85±5N·m)—no welding or drilling required. The OE-compatible design avoids misalignment issues of aftermarket brackets, which cause strut failure or cab tilting errors (repair costs up to $1,500). Its Q690 steel construction and corrosion-resistant coating extend service life to twice that of non-OE alternatives, reducing replacement frequency. Backed by a 3-year/500,000km Dongfeng warranty, it ensures reliable strut support and predictable maintenance expenses for fleets