🏭 Global Export Leader: Precision Engine Components & Custom Liners!

As a leading Source Manufacturer, we offer unbeatable Factory Direct Pricing and reliable Global Export for all engine rebuild components. We specialize in Customized Production of Cylinder Liners and Pistons (4987914), guaranteeing OE quality and perfect fitment for your high-demand Cummins L375 engines.

🎯 Genuine Quality Piston 4987914 and Ring Kit for Cummins L375

The performance and fuel efficiency of your heavy-duty Cummins L375 Engine depend critically on the quality of its reciprocating parts. Our premium replacement Piston 4987914 is designed to withstand the immense thermal and pressure loads generated by the L375. We supply this piston complete with the necessary Piston Ring Set, ensuring optimized compression and minimal oil consumption. This component is essential for equipment across major brands like Komatsu and Caterpillar that utilize the powerful L375.

🌐 Honour Time Machinery: Your Engine & Component Specialist

Honour Time Machinery Limited is a leading international supplier of diesel engine assemblies and genuine quality spare parts for the construction and heavy-duty sectors. We service key industry players, including Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai. Our core product lines essential for engine rebuilds encompass:            Cylinder Liner, Piston (4987914), Piston Ring, Main Bearing, Connecting Rod Bearing, Thrust Washer, Engine Overhaul Gasket Kit, Diesel Fuel Pump, Fuel Injector, Crankshaft, Turbocharger, Water Pump, Oil Pump, Engine Block, Cylinder Head, and Connecting Rod.

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📚 Diesel Engine & Hydraulics Component Glossary

• Cylinder Head Valve Guide: Metal sleeves pressed into the Cylinder Head that guide the vertical movement of the intake and exhaust Valves. (Application: Cummins L375 Engine - Valve Guide)

• Radiator Cap: A pressure relief valve that seals the cooling system and controls the boiling point of the coolant. Located on the Radiator Tank. (Application: Komatsu PC200-8 Excavator - Radiator Cap)

• Injector Nozzle: The tip of the Fuel Injector that atomizes the fuel and directs the spray into the combustion chamber (above the Piston 4987914). (Application: Caterpillar C7 Engine - Injector Nozzle)

• Oil Pickup Tube: A tube connecting the Oil Pump inlet to a screen filter near the bottom of the Oil Sump. (Application: Isuzu 6BG1 Engine - Oil Pickup Tube)

• Piston Pin (Gudgeon Pin): A hollow shaft that connects the Piston (4987914) to the small end of the Connecting Rod. (Application: Kubota V3307 Engine - Piston Pin)

• Idler Gear: An intermediary gear that transfers motion and torque between two or more shafts, often in the Timing Gear Train. Located in the Engine Gear Housing. (Application: Yanmar 4TNV98 Engine - Idler Gear)

• Throttle Position Sensor (TPS): An electrical sensor that monitors the position of the Throttle Body Valve, feeding data to the ECU. Located on the Intake Manifold. (Application: Weichai WP6 Engine - Throttle Position Sensor)

• Pilot Pump (Gear Pump): A small auxiliary pump, often attached to the main Hydraulic Pump, which supplies low-pressure control oil for the control valves. (Application: Caterpillar 330F Excavator - Pilot Pump)

• EGR Cooler: A heat exchanger that cools the exhaust gas before it is recirculated back into the engine intake manifold. (Application: Cummins QSB6.7 Engine - EGR Cooler)

• Swing Motor: The hydraulic motor that rotates the upper structure (cab and boom) of an excavator. Mounted centrally on the Swing Bearing. (Application: Komatsu PC400-8 Excavator - Swing Motor)

⚠️ Troubleshooting: Engine Over-Consumption of Oil

Equipment/Fault: A mining vehicle powered by a Cummins L375 Engine requires frequent oil top-ups and exhibits persistent blue/grey smoke from the exhaust.

Probable Cause: Blue/grey smoke and excessive consumption indicate oil is entering the combustion chamber. This is primarily caused by failure of the oil control Piston Rings, worn Cylinder Liners (bore wear), or failed Valve Stem Seals. In a high-mileage L375, piston ring seating failure is common.

Solution: Conduct a compression test and a cylinder leakage test. If results are poor, a complete cylinder overhaul is necessary. Replace the oil-control and compression Piston Rings, and install new Pistons (4987914). If the bore is scored, install a new Cylinder Liner. Always replace the Valve Stem Seals at the same time for a complete repair.

✅ Ready to Ship Cummins L375 Piston 4987914!

We offer Premium Reliability and efficient Global Supply for all Cummins L375 engine spares, including the specialized Piston 4987914. Contact Honour Time Machinery Limited today for factory direct service!

WhatsApp: +8613532379052            |            Email:[email protected]