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E320D Pressure Valve 416-7101 4167101 E323D Common Rail Injector Valve 305-5291 3055291
Caterpillar 416-7101 / 305-5291 Common Rail Injector Pressure Valve is a core fuel system component for CAT E320D and E323D excavators. As the pressure control element of the common rail injector, it precisely regulates fuel pressure to ensure injection accuracy and combustion efficiency, serving as a critical safety valve for the diesel engine high-pressure common rail system.
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Product Description
- Part Number: 416-7101 (4167101), 305-5291 (3055291)
- Compatible Models: Caterpillar CAT E320D, E323D Excavators (C6.4/C7.1 engine)
- Type: Common Rail Injector Pressure Valve / Fuel Pressure Relief Valve / Safety Valve
- Material: High-strength alloy steel, high pressure and corrosion resistant
- Stabilizes fuel pressure inside the common rail and injector, prevents pressure overload, and protects the injector and high-pressure fuel system components.
- Precisely controls injection pressure to ensure fuel atomization, improve combustion efficiency, and reduce fuel consumption and emissions.
- Acts as a safety valve to quickly relieve pressure under abnormal conditions, avoiding engine knock and injector damage.
- Adapts to high-pressure common rail systems, withstanding fuel pressures over 2000bar to ensure reliable system operation.
- One-piece alloy steel valve body: Compact structure, high pressure and fatigue resistance, adapting to high-temperature and vibration engine conditions.
- Precision spool and spring assembly: Ensures accurate pressure control, fast response and stable pressure relief.
- External thread and welded interface: Precisely connects to the injector/common rail, with reliable sealing and no leakage.
- Surface hardening treatment: Improves wear and corrosion resistance, extending service life.
- Used for repair and replacement of the high-pressure common rail system on CAT E320D/E323D excavators, resolving faults such as abnormal fuel pressure, hard starting, power loss, black smoke emissions and injector damage.
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