QSB5.9 Diesel Engine 3937690 Fuel Injection Pump 0470506041 Fuel Pump
We supply premium genuine fuel injection pump 3937690 and 0470506041 fuel pump, specially designed and fully compatible with the QSB5.9 diesel engine series. As a core fuel system component for QSB5.9 engines, this high-precision fuel injection pump plays a decisive role in controlling fuel delivery volume, injection timing and overall combustion efficiency, making it an essential replacement part for industrial machinery, construction equipment and heavy-duty vehicle maintenance. Manufactured in strict accordance with OEM standards, both part numbers feature precise structural dimensions, stable internal pressure and perfect original matching, allowing direct installation without modification or extra debugging.
Built with high-grade alloy materials and advanced precision processing technology, the 3937690 and 0470506041 fuel pumps deliver consistent fuel atomization and highly efficient fuel supply performance. They effectively resolve common QSB5.9 engine problems such as difficult cold starting, unstable idling operation, weak power output, excessive fuel consumption and black smoke emission caused by worn or faulty original injection pumps. Featuring excellent wear resistance, high-temperature resistance and pressure stability, this fuel pump can endure long-term heavy-load operation and harsh working conditions, maintaining stable engine performance all year round.
Each QSB5.9 fuel injection pump undergoes rigorous sealing tests, pressure detection and dynamic balance aging tests before delivery to ensure zero leakage, low failure rate and extended service life. Offering reliable quality and outstanding cost performance, these pumps are ideal repair and overhaul spare parts for QSB5.9 diesel engines. We maintain sufficient stock, support fast global delivery and provide 24/7 professional after-sales technical support, helping you minimize equipment downtime, reduce maintenance costs and fully restore your engine’s original power and working efficiency.
Product Description:
Product Name: QSB5.9 Excavator Fuel Injection Pump
Model:
Parts Number: 3937690
Condition:100% New
In Stock:Yes
MOQ:1 PC
Payment Methods:Western Union, T/T
Related Product Information
Engine Parts
Frequently Asked Questions
Q: I only know my excavator or equipment model, but cannot confirm the exact spare part number. What should I do?
A: There is no need to worry if you are unable to locate or verify the precise OEM part number for your machinery. You can simply send us clear and detailed pictures of your original old parts, the equipment nameplate information, or specific dimensional parameters of the accessories you need. Our experienced technical team will conduct professional identification, accurate model matching and careful verification to recommend the most compatible replacement parts for your device.
Q: What solutions are provided if the received parts have quality or functional issues?
A: We always adhere to strict quality control standards and hold full confidence in the reliability of all our machinery spare parts. In the rare case that you encounter any product defects, functional failures or quality problems after receiving the goods, please kindly provide clear photos and relevant evidence of the problematic items. After our professional team completes inspection and problem confirmation, we will arrange the return process promptly and deliver brand-new, qualified and correct replacement products to you as soon as possible.
Q: How soon will you ship out my confirmed order after payment?
A: We implement efficient and standardized order processing procedures for every global customer. Immediately after we successfully receive and confirm your payment, our warehouse team will complete product inspection, sorting and reinforced packaging, and strive to arrange the shipment of your ordered goods within 24 working hours to ensure timely delivery.
Q: What is the general delivery time to my destination country?
A: The overall shipping transit period varies according to different logistics methods and your specific regional location. For international express delivery, the standard arrival time is approximately 3 to 5 working days. Air freight services usually take 4 to 7 working days for global delivery. For economical sea freight transportation, the general delivery cycle ranges from 30 to 40 days. The final arrival time is subject to local customs clearance efficiency and regional logistics conditions.
Our Professional Global Services
We dedicate ourselves to providing one-stop professional machinery spare part procurement services worldwide, featuring fast order delivery, stable supply capacity and highly competitive market prices to create maximum value for every client. We own a mature, experienced and professional service team, capable of providing standardized technical guidance, customized matching solutions and thoughtful after-sales support to solve all your procurement and product-related problems efficiently.
We offer a complete range of high-quality machinery accessories, including brand-new parts, premium used parts and standard OEM replacement parts, all featuring reliable quality and trustworthy performance with Chinese manufacturing quality assurance. We will provide detailed product specifications including item weight, unit price and total quotation for all products during the quotation process to support your business evaluation and procurement plan.
All of our spare parts can be accurately queried, verified and strictly ordered according to official OEM part numbers to ensure perfect compatibility and accurate matching. To avoid product damage during long-distance international transportation, we adopt multiple safe and reinforced packaging methods, including solid wooden box packaging and iron sheet reinforcement for heavy-duty mechanical parts. In addition, we provide 24/7 all-day online overseas customer service, always ready to respond to your inquiries at any time.
