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MF 3816909M91
CISSOKO
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This aftermarket hydraulic gear pump 3816909M91 is designed for Massey Ferguson tractors and ensures dependable steering and lift hydraulic performance.
Key Specifications
Part Number: 3816909M91
Displacement: 0.854 + 0.610 CID
Rotation: Clockwise (Right)
Compatibility:
Series 4200: 4225, 4235, 4240, 4245, 4255, 4260, 4265, 4270
Series 4300: 4325, 4335, 4345, 4355, 4360, 4365, 4370
Series 5300 (Brazil): 5335, 5340, 5355, 5360, 5365
Features and Benefits
Seamless Drop-In Fitment: Formulated as a precise aftermarket equivalent that perfectly matches all factory housing footprints, ensuring a direct and hassle-free mechanical alignment without tractor modifications.
Restored Hydraulic Responsiveness: Re-establishes peak volumetric efficiency throughout your tractor's entire system, returning fast cycle times to three-point hitches and remote auxiliary lines.
Heavy-Duty High-Pressure Build: Constructed from premium-grade, wear-resistant metals engineered to survive severe oil pressure spikes and withstand continuous workloads in punishing field environments.
Advanced Internal Sealing: Equipped with high-integrity internal seals that tightly contain pressurized oil, preventing internal bypass degradation while maximizing long-term power delivery.
Thermal and Friction Resilience: Features precision-ground internal gears that run smoothly against low-friction wear plates, minimizing internal heat generation to protect and extend the service life of your overall fluid circuit.
CID | 0.854-0.610 | Rotation | CW |
Brand | Hydro-Pack | Weight | 16 LBs |
GTIN | 850028143766 |
Applications
Ideal for: Direct aftermarket pump replacement, classic tractor utility power restoration, agricultural implement hydraulic line revitalization, front loader attachments, and heavy-duty farm maintenance on vintage utility tractors and harvest machinery.
Hydraulic gear pump products are typically packaged securely to prevent damage during transit. The packaging includes:
Protective Wrapping: To safeguard the pump from environmental damage and moisture.
Custom Crates / Heavy-Duty Cartons: For larger, heavier pumps or multi-stage units, ensuring safe handling.
Documentation: Includes installation guides, maintenance instructions, and warranty details. Delivery time depends on the model, customizations, and location but typically ranges from 2 to 6 weeks from the order date.
1. What are the common indicators that my tractor's hydraulic gear pump needs a replacement?
Typical symptoms of a failing tractor hydraulic pump include slow or unresponsive three-point hitch lifting, reduced lifting capacity on attached implements, a visible shuttering or jerking of the rear hydraulic lift arms under load, and a high-pitched whining or groaning sound from the pump area when the oil gets warm. If your hydraulic remotes drop in pressure while performing routine agricultural tasks, the internal pump components are likely worn beyond their service limits.
2. Is this hydraulic pump a direct bolt-on replacement for my tractor model?
Yes, this aftermarket gear pump is meticulously engineered as a direct drop-in mechanical replacement that perfectly replicates the original factory housing, mounting flange pattern, and port orientations. It bolts directly onto the tractor's engine or transmission auxiliary drive layout without requiring any cutting, bracket repositioning, or line extensions, ensuring a quick and straightforward installation process.
3. Why is it absolutely necessary to perform a complete system flush during installation?
When an old hydraulic pump degrades or experiences mechanical failure, it often sheds tiny metal shavings, flakes, and fine particulate debris straight into the tractor's central oil reservoir. If you install the new replacement pump without thoroughly flushing the entire system, cleaning the pickup screen, and replacing the main hydraulic filters, the residual metal debris will be drawn directly into the precision-machined gears of the new pump, destroying its internal tolerances almost immediately.
4. What type of hydraulic oil should be used with this pump, and how often should it be changed?
You should strictly use a high-quality Universal Tractor Transmission Fluid (UTF) that meets or exceeds the original machine manufacturer's specifications for combined hydraulic, transmission, and wet-brake systems. To protect your investment and maintain maximum pump efficiency, check the fluid level before every operation, inspect filters regularly, and completely change the hydraulic oil and filters according to your specific tractor manual's maintenance intervals, typically every 500 hours.
5. What causes a brand-new tractor hydraulic pump to leak fluid from its front mounting shaft seal?
The most frequent cause of a blown front shaft seal on a newly installed pump is excessive system backpressure inside the return or suction lines, which can be caused by a plugged hydraulic filter, a pinched oil hose, or an incorrectly adjusted system relief valve. Additionally, failing to clean and lightly lubricate the tractor's internal drive splines during assembly can create a mechanical misalignment that exerts an uneven side-load on the shaft, resulting in premature seal failure.
Yes, we support OEM and customization, including nameplate, packaging, and specific performance requirements. Send us your drawings or specifications for evaluation.
Pumps are manufactured in compliance with international standards, ensuring high performance and reliability:
ISO 9001: Certified for quality management systems.
CE Certification: Ensures compliance with European safety, health, and environmental protection standards.
RoHS Compliance: Ensures the component does not contain hazardous materials.
Factory Testing: Every pump is rigorously tested for performance, pressure, and leak integrity before shipping.
1.What's our advantages?
Factory established in 2005;
With a great deal of production experience;
80+ employees become the professional team;
Constant updated ERP system ensure efficiency of work;
Sophisticated equipment ehanced the accuracy of products;
Professional salesmen provide the greatest service;
With a large number of famous customers all over the world;
Great after-sales service;
With the long term cooperation with famous logistics and express company in China,provide the better goods service.
Small order/sample order,full payment in advance; Big orders send the first payment 30% before the production,and the balance before shipment.We'll show the photos of the products and packages before delivery.
Of course we can. Just send me your logo we can make it for you.
America(40.5%):USA, Canada, Argentina, Brazil
Europe(30.8%):Italy,Germany,England,Holland,Spain,Swiss,Finland,Russia,Poland.
Asia(23.5%):Korea,singapore,India,Turkey,Vietnam,Saudi Arabia,Syria, Israel,Lebanon.
Others(5.8%).
The Cissoko hydraulic pump manufacturing facility is a specialized industrial plant that focuses on producing hydraulic pumps and related components. These factories are equipped with advanced machinery and technology to fabricate high-quality pumps designed for a wide range of applications, from heavy equipment and machinery to automotive and industrial systems.
The production process typically involves precision engineering, where raw materials like metals and alloys are processed into pump components such as gears, pistons, cylinders, and seals. These parts are then assembled into fully functional hydraulic pumps, which are tested for performance and quality control to ensure reliability, efficiency, and durability under various working conditions.
Cissoko Hydraulic's manufacturing facilities for hydraulic pumps maintain stringent quality standards, often adhering to international certifications, to meet the expectations of customers in industries such as construction, agriculture, automotive, and manufacturing.
All hydraulic pumps produced by Cissoko Hydraulic have undergone compliance testing, ensuring their quality and reliability.
To meet the diverse needs of different industries, the Cissoko hydraulic offers customization options, such as specialized seals, materials, and pump configurations. These facilities often work closely with engineering teams to develop tailored solutions for specific applications, from high-pressure systems to low-flow, high-efficiency pumps.
Each pump undergoes a rigorous quality control process, where pressure tests and performance assessments are conducted to ensure that the pumps meet the required standards for flow rate, pressure capacity, and durability.
