SPARKLING Hydraulic Pump for Doosan MEGA Loader – Reliable & Precise

The 401-00423 hydraulic pilot pump, also known as the steering pump or pilot pressure pump, is a key component of the MEGA 500-V TIER-II wheel loader’s hydraulic system. With a robust 45kg build, this high-performance pump ensures precise pilot control, smooth steering assistance, and reliable hydraulic pressure for various operations.

Designed to OEM standards, this pump is built with reinforced cast iron housing, high-efficiency rotors, and hardened shafts, offering excellent resistance to wear, pressure fatigue, and oil contamination. It’s an ideal replacement for the original Doosan/Daewoo system pump and fully compatible with heavy-duty operation demands.

   The 280-2357 gear is a planetary final drive reduction gear for Caterpillar mini excavators 303.5C/303.5D/303.5E (also fits 303C CR/303.5CR/303.5E2/304/304E2). It works in the travel motor gearbox to reduce speed, amplify torque, and drive track movement smoothly for landscaping, utility, and small-scale construction tasks.

Key Features
· OEM-Matched Precision: 20CrMnTi alloy steel, precision-machined teeth, exact pitch/diameter—no modification needed for Cat models.
· Durable Construction: Carburized tooth surface (58–62 HRC) for wear resistance; shot-peened for fatigue strength.
· High Torque Capacity: Optimized for 1,800 N·m max torque; low backlash (<0.05mm) for stable track operation.
· Plug-and-Play Installation: Direct fit into final drive assembly; 45-minute replacement with basic hand tools.
· Long Service Life: 8,000+ hours lifespan; 100% tested for tooth profile, hardness, and dimensional accuracy.

Compatible Equipment
· Mini Excavators: Caterpillar 303.5C, 303.5D, 303.5E, 303C CR, 303.5CR, 303.5E2, 304, 304E2.
· Interchangeable Part Numbers: 280-2357, 2802357.

   SPARKLING MACHINERY NEW EC220D EC235D EC250D EC250E EC300D 14592299 Relief Valve is a dedicated hydraulic safety component for VOLVO EC220D/EC235D/EC250D/EC250E/EC300D crawler excavators (heavy-duty equipment for construction/mining). As the hydraulic system’s core safety guard, it precisely limits max pressure to protect pumps, cylinders, and pipelines from overload damage during rock breaking or bulk loading.

   Meeting VOLVO OEM standards (part no. 14592299), it endures 34 MPa pressure, -25°C to 105°C temps, and heavy vibration. It resists oil contamination and wear, ensuring long-term reliability for the five VOLVO models, with strict testing guaranteeing compatibility and safe operation.

   SPARKLING MACHINERY NEW EC250D EC300D PL3005D 22067983 Wire Harness is a critical electrical connection component for Volvo EC250D, EC300D, and PL3005D excavators (widely used in construction, mining, and infrastructure projects). As the "electrical communication backbone", it transmits stable power and signals between the excavator’s control unit, sensors, and actuators—ensuring smooth operation of functions like engine start, hydraulic control, and instrument display during tasks like digging, lifting, and rock breaking, while preventing electrical failures that disrupt equipment performance.
   Meeting Volvo OEM standards (part no. 22067983), it endures -30°C to 85°C temperatures, resists moisture and vibration, and guarantees reliable insulation. Strict testing ensures seamless compatibility with the three Volvo models and long-term electrical system reliability.