OEM Matching VP44 Fuel Injection Pump for Cummins QSB5.9 with Precision Manufacturing and Stable Fuel Supply

For 3937690 0470506041 Fuel injection pump Cummind QSB5.9 Bosoh VP44 Engine Parts

Specification

Description

This product is a Bosoh VP44 series high-pressure fuel injection pump, specially designed for Cummind 5.9 diesel engines, with OEM matching part numbers 3937690 and 0470506041. It is the core assembly component of the diesel engine fuel supply system.
Adopting an integrated radial plunger mechanical-electric VP44 high-pressure structure with 6-cylinder oil outlet layout, it fully integrates the governor mechanism, fuel cut-off solenoid valve, high-pressure oil supply pipeline and flange mounting base. It strictly conforms to the original installation dimensions and interface specifications, supports direct non-damage replacement of the original old pump, and is widely applied to 5.9L displacement diesel engines for construction machinery, generator sets and heavy-duty vehicles.

Advantage

1.Original OEM Precise Matching
Fully compliant with OEM numbers 3937690 & 0470506041. 1:1 identical with original parts in mounting holes, oil circuit interfaces, electrical connectors and drive shaft dimensions. Direct plug-and-play installation without modification or debugging.
2.Premium Precision Manufacturing
Core precision matching parts including plunger, delivery valve and cam plate are made of high-strength wear-resistant alloy with precision grinding process. It delivers better sealing and wear resistance than generic aftermarket parts, with extended service life.
3.Stable Fuel Supply Control
Integrated high-precision mechanical governor + electric fuel cut-off control module. It ensures stable idle speed and sensitive acceleration response, effectively solving original pump faults such as oil leakage, unstable fuel supply, hard starting, power reduction and excessive black smoke emission.
4.Complete Assembled Unit Delivery
Fully pre-assembled with governor lever, oil return pipeline, solenoid valve and mounting flange. Fully tested on bench under full working conditions for pressure, fuel delivery volume and sealing before delivery, ready for direct installation.
5.Universal Installation Compatibility
Standard flange drive connection structure, matching original engine flywheel end interface. Easy maintenance and replacement, greatly reducing after-sales installation labor cost.

Performance

1.Meets the high-pressure injection standard of VP44 series with rated working pressure. It provides accurate and stable injection timing and excellent fuel atomization, realizing more complete engine combustion, lower fuel consumption and stronger power output.
2.Stable performance under wide working conditions: precise fuel volume control under idle speed, load acceleration and high-speed steady operation. It is shock-resistant, high-temperature resistant and high-pressure resistant, suitable for harsh outdoor operation environments of construction machinery.
3.Excellent sealing performance: no leakage in high-pressure oil circuit, smooth fuel supply for low-temperature cold start, no pressure attenuation under high-temperature and high-load conditions, with high long-term operation reliability.
4.Fast electrical control response: timely power-off fuel cut-off, clean engine shutdown, high idle speed control accuracy, effectively reducing engine idle vibration and emission pollutants.

FAQ

Q1: When will my goods be shipped?
A: Your goods will be dispatched within 24 hours after payment confirmation.

Q2: What is the lead time?
A: We maintain sufficient stock for immediate fulfillment.

Q3: What shipping methods do you offer?
A: We ship via sea, air, or express (DHL, FedEx, TNT, UPS, EMS).

Q4: What is the delivery time?
A: Stock items take 2 to 5 days; pre-order items take 7 to 15 days. Contact us for specifics.

Q5: How can I track my shipment?
A: We will provide you with the tracking number as soon as your order is shipped.

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