1601438041344
The 3937690 VP44 fuel injection pump is engineered to deliver precise fuel control and consistent engine performance for Cummins QSB5.9 diesel engines. Manufactured with high-precision pump elements, durable internal components, wear-resistant plungers, and advanced sealing technology, it ensures stable fuel injection timing, optimized combustion efficiency, and reliable operation under demanding working conditions.
This diesel fuel pump replaces Part No. 3937690 and 0470506041 and is widely used in excavators, construction equipment, agricultural machinery, generator sets, and other diesel-powered applications equipped with Cummins QSB5.9 engines. The VP44 injection system helps maintain accurate fuel supply, improve throttle response, restore engine power output, and reduce fuel consumption caused by aging or damaged fuel injection components.
Designed according to strict manufacturing standards, this fuel injection pump offers excellent compatibility, long service life, and dependable performance in heavy-duty environments. It is an ideal replacement solution for engine repair, overhaul, and preventive maintenance when the original fuel pump is worn, leaking, or unable to maintain proper injection pressure.
Each fuel injection pump is carefully inspected before shipment, including fuel delivery testing, pressure calibration, sealing inspection, dimensional verification, and performance evaluation to ensure reliable operation. Whether you are an equipment owner, repair workshop, machinery dealer, or spare parts distributor, the 3937690 VP44 fuel injection pump provides a cost-effective solution to restore engine efficiency, reduce downtime, and maintain stable machine operation.
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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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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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QSB5.9 Fuel Injection Pump 3937690
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Q1: Which engine is this fuel injection pump compatible with?
A: It is designed for Cummins QSB5.9 diesel engines. Please confirm your engine model and fuel pump number before ordering.
Q2: Which part numbers does this fuel pump replace?
A: It replaces 3937690 and 0470506041.
Q3: What are the advantages of this VP44 injection pump?
A: It provides precise fuel delivery, stable injection pressure, improved combustion efficiency, better engine response, and reliable performance under heavy-duty operation.
Q4: Is the fuel pump tested before shipment?
A: Yes. Each unit undergoes fuel calibration testing, pressure testing, leakage inspection, and quality verification before delivery.
Q5: What other Cummins 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 full range of excavator engine spare parts.
