SPARKLING CAT D9R Main Control Valve – Precision Hydraulic Valve

The CA1878636 Main Control Valve Assembly (also referenced as 187-8636 or 1878636) is an essential hydraulic component designed specifically for the Caterpillar D9R track-type tractor. This unit is responsible for the precise distribution and regulation of hydraulic flow, enabling smooth and accurate control of blade, ripper, and other operational functions.

Key Features:

• Direct-fit replacement for CAT D9R – no modification required

• OEM-standard internal machining ensures optimal hydraulic flow and durability

• High-pressure resistance for demanding dozer applications

• Fully tested before delivery, ensuring performance and zero leakage

Whether you're maintaining a mining fleet or servicing a heavy-duty bulldozer, this main control valve assy ensures efficient operation and extended equipment lifespan.

   SPARKLING MACHINERY NEW R210LC7H R210LC9BH XKBH-01693 Gasket is a dedicated sealing component for Hyundai R210LC7H and R210LC9BH crawler excavators (widely used in construction, mining, and municipal engineering). As the "hydraulic/system seal guardian", it fits between critical components (e.g., engine covers, hydraulic manifolds) to block oil, coolant, or debris leakage—ensuring airtight and liquid-tight performance during tasks like digging, lifting, and rock breaking, while protecting internal parts from contamination and wear.
   Meeting Hyundai OEM standards (part no. XKBH-01693), it endures -30°C to 100°C temperatures, resists hydraulic oil corrosion and high pressure, and maintains elastic sealing performance. Strict testing guarantees seamless compatibility with Hyundai R210LC7H/R210LC9BH and long-term system sealing reliability.

   SPARKLING MACHINERY NEW 2420-1124A Valve; By-Pass 3B is a dedicated hydraulic pressure protection component for Doosan excavators (widely used in construction, municipal engineering, and light mining). As the "hydraulic pressure regulator", it automatically diverts excess hydraulic oil back to the tank when system pressure hits the 3B (bar) threshold—shielding pumps, cylinders, and hoses from overpressure damage during tasks like digging, material loading, and site trimming, while ensuring stable oil flow for smooth equipment operation.
   Meeting Doosan OEM standards (part no. 2420-1124A), it maintains precise 3B pressure control, endures -30°C to 95°C temperatures, resists hydraulic oil corrosion and vibration, and guarantees leak-free performance. Strict testing ensures seamless compatibility with applicable Doosan models and long-term hydraulic system reliability.

   SPARKLING MACHINERY NEW 0501.206.521 Joint Double is a dedicated hydraulic connection component for Komatsu excavators (widely used in construction, mining, and infrastructure projects). As the "hydraulic pipeline linker", it connects two hydraulic tubes to ensure smooth, leak-free oil flow between system components—supporting key functions like boom lifting, bucket digging, and swing movements, while adapting to the excavator’s operational vibration and spatial layout.
   Meeting Komatsu OEM standards (part no. 0501.206.521), it endures 30 MPa working pressure, -30°C to 95°C temperatures, resists hydraulic oil corrosion and wear, and maintains tight connection performance. Strict testing guarantees seamless compatibility with applicable Komatsu models and long-term hydraulic system stability.