SPARKLING CAT D7 Valve 558-5127 – Reliable Excavator Hydraulic Valve

The 558-5127 / 5585127 Valve GP-QDR is a genuine replacement hydraulic control valve designed for CAT D7 Track-Type Tractors. Manufactured to Caterpillar OEM standards and weighing 27KG, this original valve ensures high precision fluid control in demanding construction and earthmoving environments.

As a critical component in the hydraulic control system, the GP-QDR valve regulates the flow and pressure to various functions of the bulldozer, helping to deliver reliable and responsive operational performance. SPARKLING MACHINERY offers this valve as part of our premium product lineup—ideal for equipment owners seeking both authenticity and performance assurance.

   SPARKLING MACHINERY NEW EC135B EC140B EC160B EC180B VOE14514195 Relay is a core electrical control component for 4 Volvo excavator models (construction/municipal use). It switches high-current circuits (e.g., lights, pumps) via low-current signals, ensuring safe and stable electrical system operation. 
   Meeting Volvo OEM standards (VOE14514195), it resists -30°C to 85°C temps, moisture, and vibration, guaranteeing seamless compatibility and long-term reliability.

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 EC135B EC140B EC140D EC160B EC180B 14513267 Relief Valve is a dedicated, high-precision hydraulic safety component exclusively engineered for VOLVO EC135B, EC140B, EC140D, EC160B, and EC180B crawler excavators—versatile mid-sized equipment widely used in construction, municipal engineering, and light mining projects. As the core safety barrier of the excavator’s hydraulic system, it precisely limits maximum hydraulic pressure, preventing overload damage to critical components (hydraulic pumps, cylinders, pipelines) during tasks like trench digging, material loading, and small-scale rock breaking. This function is vital for maintaining system stability, avoiding costly unplanned downtime, and ensuring consistent operational efficiency of VOLVO excavators.

   Engineered to meet VOLVO’s original equipment (OEM) standards and marked with the genuine part number 14513267, the Relief Valve withstands harsh working conditions: high operating pressure (up to 30 MPa), extreme temperature fluctuations (-25°C to 105°C), and continuous vibration from heavy-duty use. It resists oil contamination and mechanical wear, providing long-lasting pressure regulation reliability for the five VOLVO excavator models. Backed by strict performance verification, it guarantees seamless compatibility and safe operation for daily tasks.