Product Overview: 4003950 Oil Pump

Enhance the reliability of your heavy machinery with the premium Growshine 4003950 Oil Pump. Specifically engineered for the rigorous demands of the Zoomlion ZR280C rotary drilling rig, this component ensures optimal lubrication flow, reducing friction and preventing overheating in critical engine components. At Growshine International, we prioritize durability and precision fitment for all construction machinery applications.

Engine Compatibility: Cummins QSM11

The 4003950 Oil Pump is the heart of the lubrication system for the legendary Cummins QSM11 diesel engine. Known for its power and efficiency in heavy-duty applications, the QSM11 requires a robust oil pump to maintain consistent pressure. Our product meets strict OEM standards, ensuring that your Zoomlion drilling rig operates at peak performance without downtime caused by lubrication failure.

Growshine International: Your Trusted Partner

Growshine International (格莳国际) is a leader in the global supply chain for machinery components. Our main business covers the import and export of construction machinery parts, heavy truck parts, agricultural machinery parts, and automobile parts. Whether you need a single replacement unit like the 4003950 or a bulk order for fleet maintenance, our logistics network ensures timely delivery worldwide.

Key Features & Benefits

• Part Number: 4003950

• Application: Zoomlion ZR280C Rotary Drilling Rig

• Engine Model: Cummins QSM11

• Material: High-strength cast iron alloy for heat and wear resistance.

• Performance: Precision-machined gears for stable oil pressure.

By choosing Growshine parts, you are investing in longevity. We understand that in fields like construction and mining, equipment availability is currency. That is why our 4003950 pumps undergo rigorous testing before shipment.

Machinery Terminology Corner

Component: Swing Motor (Hydraulic System)

Example Equipment: Komatsu PC200-8 Excavator

Explanation: The Swing Motor is a hydraulic motor that provides the force necessary to rotate the excavator's upper structure (house) relative to the undercarriage. In the case of the Komatsu PC200-8, this motor converts hydraulic pressure into mechanical torque, allowing the operator to position the bucket for digging or dumping loads precisely. It is a critical component for the machine's versatility.

Knowledge Base: Importance of the Oil Pump

The oil pump, such as the 4003950 for the QSM11, is often called the "heart" of the engine. It sucks oil from the oil pan and forces it through the oil filter into the oil galleries. It lubricates the crankshaft bearings, camshafts, and pistons. A failing oil pump can lead to low oil pressure, resulting in catastrophic metal-on-metal contact and engine seizure. Regular replacement during major overhauls is recommended.

Oil Cooler / Oil Radiator Cross Reference List

Below is a comprehensive list of Oil Coolers available. Note: Hyphenated part numbers (e.g., BPOC-2160) are also searchable as non-hyphenated (BPOC2160).