Dongfeng GX truck Saddle assembly 2702001ZB91-DQ01 in stocked

Tailored exclusively for Dongfeng GX truck models, this saddle assembly matches OEM dimensions with ±0.2mm tolerance, ensuring perfect alignment with the truck’s rear chassis. The mounting base (8 pre-drilled holes, 18mm diameter) aligns exactly with the chassis’s frame rails, requiring no drilling or modification. The saddle’s height (320mm from chassis to contact surface) follows factory specs, ensuring compatibility with standard semi-trailer kingpins (50mm or 90mm, per ISO 3377). Unlike generic saddles, it integrates with Dongfeng GX’s original air suspension and braking systems, avoiding interference with air lines or brake cables. Rigorously tested on Dongfeng GX test trucks, it passes 250+ fitment checks to guarantee no misalignment—ensuring the trailer kingpin engages smoothly and the saddle remains securely fastened during transport

Built to withstand harsh long-haul conditions, the assembly uses robust, protective materials. The contact wear plate is made of hardened steel (HRC 50–55), resisting abrasion from trailer kingpin movement—tested to maintain thickness after 100,000 kingpin engagements. The main frame undergoes shot blasting (Sa 2.5 grade) followed by a two-layer coating: epoxy primer (80μm) for corrosion resistance and polyurethane topcoat (60μm) for impact protection, achieving 1,500-hour salt spray resistance—suitable for coastal or snowy regions. The kingpin locking mechanism’s components (lock jaws, springs) are made of stainless steel (304), preventing rust and ensuring smooth operation. It also passes temperature cycling tests (-30°C to 70°C), ensuring no component failure in extreme weather, reducing maintenance frequency for truck operators

The assembly features a reliable kingpin locking system to ensure safe trailer connection. It uses a dual-lock jaw design (made of hardened steel) that engages the trailer kingpin with a clamping force of 80kN, preventing disengagement even during sudden braking or rough road conditions. The locking mechanism is activated via a manual lever (with a safety pin) or optional air-assisted control (compatible with Dongfeng GX’s air system), ensuring easy operation for drivers. A visual indicator on the lever shows whether the lock is fully engaged, avoiding human error. Tested under emergency braking (10m/s² deceleration) and lateral force (30kN), the lock maintains a secure connection, preventing trailer sway or detachment. For operators, this adds a critical safety layer during high-speed highway transport or off-road deliveries

Designed for efficient installation and maintenance, the assembly requires no specialized tools beyond standard wrenches (24mm, 27mm) and a torque wrench (preset torque: 500±20 N·m for mounting bolts). The installation process takes 2 hours (for a two-person team): 1) Position the saddle on the Dongfeng GX chassis frame rails; 2) Secure with the factory mounting bolts (included); 3) Connect air lines (if air-locked) and test the locking mechanism; 4) Verify alignment with a kingpin gauge. Maintenance is simplified— the wear plate can be replaced without removing the entire saddle, and the locking mechanism’s grease fittings allow easy lubrication every 10,000km. A detailed maintenance manual (with service intervals) is included, making it suitable for fleet workshops and reducing vehicle downtime