SPARKLING CAT 312D Swing Gearbox – Durable Excavator Part

The Caterpillar Swing Reducer (Part No. 333‑3073 / 3333073) is a premium swing gearbox designed to restore smooth and powerful 360° rotation in CAT excavators—compatible with 312D, 312DL, 312D2, 312E, 313D, 313D2, 314C, and 314E models. 

It features hardened steel planetary gears, sealed bearings, and robust housing to handle heavy-duty rotational loads while preventing leaks and contamination . Available as genuine OEM or high-quality aftermarket units, this swing reducer ensures a direct-fit replacement and optimized machine performance.

   SPARKLING MACHINERY NEW D60P D61E D61EX D61PX D65E 14X-13-11660 Yoke is a dedicated power transmission component for Komatsu D60P, D61E, D61EX, D61PX, and D65E crawler dozers/excavators (widely used in construction, mining, and land leveling). As a core link in the drive system, it connects the drive shaft to gears or hydraulic motors—transmitting torque smoothly while compensating for minor alignment errors, ensuring stable power transfer during tasks like pushing soil, grading terrain, and heavy material moving.
   Meeting Komatsu OEM standards (part no. 14X-13-11660), it endures high torque loads (up to 650 N·m), -30°C to 90°C temperatures, resists wear and oil corrosion, and maintains consistent transmission performance. Strict testing guarantees seamless compatibility with the five Komatsu models and long-term reliable drive linkage.

   SPARKLING MACHINERY NEW ME990328/60289472 Water Pump is a critical cooling system component tailored for compatible heavy-duty construction machinery, such as excavators and loaders. As the core power source of the machinery’s coolant circulation system, it drives engine coolant to flow through radiators, engine blocks, and other heat-generating components—effectively transferring excess heat and maintaining the engine’s optimal operating temperature (typically 82–95°C). This function is vital for preventing engine overheating during high-intensity operations like prolonged digging, heavy-load lifting, and continuous idling in construction, mining, or infrastructure projects, directly safeguarding engine power output, fuel efficiency, and long-term service life.

   Engineered to match original equipment performance standards, it maintains stable coolant flow rate and pressure even under harsh working conditions, including high ambient temperatures, continuous machinery vibration, and exposure to dust or coolant contaminants. It resists leakage, bearing wear, and impeller damage, avoiding cooling system failures that could lead to costly engine repairs or unplanned downtime. Backed by strict performance verification, it guarantees reliable circulation performance to support uninterrupted operation of compatible heavy-duty machinery.

   SPARKLING MACHINERY NEW 301.5 302.5 303 303.5 156-8847 Solenoid is a dedicated electrical control component for CATERPILLAR 301.5, 302.5, 303, and 303.5 mini crawler excavators (versatile for landscaping, indoor demolition, and small-scale construction). As a key switch for the excavator’s hydraulic or fuel systems, it converts electrical signals into mechanical action to control valve opening/closing, ensuring precise operation of functions like bucket tilting and arm movement during delicate tasks.
   Meeting CATERPILLAR OEM standards (part no. 156-8847), it endures -30°C to 85°C temperatures, resists vibration and electrical interference, and maintains stable switching performance. Strict testing guarantees seamless compatibility and long-term reliability for the four CATERPILLAR models.