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The 511-7975 fuel injection pump is a high-performance diesel fuel system component developed for CAT C9 and C9.3 engine applications. Manufactured with precision-machined pump elements, durable internal components, wear-resistant plungers, and advanced sealing technology, it ensures consistent fuel supply, accurate injection timing, and efficient combustion performance during demanding operating conditions.
Compatible with Caterpillar C9 and C9.3 diesel engines, this fuel pump replaces Part No. 511-7975 and 5117975. It is widely used in excavators, earthmoving equipment, mining machinery, industrial engines, and other heavy-duty diesel applications. The optimized fuel injection system helps restore engine power, improve combustion efficiency, enhance throttle response, and maintain stable operation during long working hours.
Designed for engine repair, overhaul, and preventive maintenance, this diesel fuel injection pump provides excellent compatibility and dependable service life. It is an effective replacement for original fuel pumps affected by wear, low injection pressure, unstable fuel supply, or reduced engine performance. The durable construction allows it to operate reliably in harsh environments with high temperature, vibration, and continuous workload.
Each fuel injection pump is carefully inspected before shipment through fuel delivery calibration, pressure testing, leakage inspection, dimensional verification, and performance evaluation. Whether you are an equipment owner, repair workshop, machinery dealer, or spare parts distributor, the 511-7975 C9.3 fuel injection pump provides a reliable solution for restoring engine efficiency, reducing downtime, and extending equipment service life.
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item
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value
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Condition
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New
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Applicable Industries
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Building Material Shops, Machinery Repair Shops, Manufacturing Plant, Retail, Construction works , Energy & Mining, Other
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Showroom Location
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Video outgoing-inspection
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Provided
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Machinery Test Report
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Provided
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Marketing Type
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Ordinary Product
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Place of Origin
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China
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Guangdong
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Brand Name
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lanxin
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Warranty
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6 months
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Product name
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Engine Diesel Pump
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Q1: Which engines is this fuel injection pump compatible with?
A: It is compatible with Caterpillar C9 and C9.3 diesel engine applications. Please confirm your engine model and pump part number before ordering.
Q2: Which part numbers does this injection pump replace?
A: It replaces 511-7975 and 5117975.
Q3: What equipment can use this fuel injection pump?
A: It is suitable for CAT excavators, construction machinery, mining equipment, industrial diesel engines, and other heavy-duty equipment equipped with C9 series engines.
Q4: How do you ensure the quality of the fuel pump?
A: Each pump undergoes fuel calibration, pressure testing, leakage inspection, and comprehensive quality control before shipment to ensure stable performance.
Q5: What other CAT engine parts do you supply?
A: We supply fuel injection pumps, fuel injectors, turbochargers, complete diesel engine assemblies, cylinder heads, cylinder blocks, crankshafts, camshafts, overhaul kits, starter motors, alternators, ECUs, hydraulic pumps, and a complete range of excavator engine spare parts.
