Product Description
CAT 564-9801 Hydraulic Fan Piston Pump
Part Number: 564-9801 / 5649801
Product Category: Hydraulic Pump
Product Series: Hydraulic Fan Piston Pump
Application: Caterpillar Excavators and Material Handling Equipment
Product Overview
The CAT 564-9801 Hydraulic Fan Piston Pump is designed to supply pressurized hydraulic oil to the cooling fan motor in compatible Caterpillar heavy equipment. It converts mechanical energy into hydraulic energy, enabling hydraulic fan operation and helping regulate engine temperature under varying operating conditions.
As a hydraulic pump manufacturer, Guangdong Haozheng Hydraulic Equipment Co., Ltd. provides aftermarket hydraulic pump solutions for construction machinery maintenance, equipment repair, and replacement requirements. Our products serve hydraulic parts distributors, machinery repair workshops, equipment service providers, and international wholesale customers.

Compatible Equipment
The 564-9801 pump is listed for selected Caterpillar equipment, including:
- CAT 336 Excavator
- CAT 336 GC Excavator
- CAT 340 Excavator
- CAT 345 GC Excavator
- CAT 374 Excavator
- CAT MH3250 Material Handler
- CAT 336 MHPU Hydraulic Power Unit
Machine compatibility may vary by serial number and equipment configuration. Confirm the original part number and pump specifications before ordering.
Technical Specifications
| Specification | Details |
|---|---|
| Part Number | 564-9801 |
| Product Type | Hydraulic Fan Piston Pump |
| Application System | Hydraulic Cooling Fan Drive |
| Housing Material | Ductile Iron |
| Overall Length | 295.91 mm / 11.65 in |
| Overall Width | 171.96 mm / 6.77 in |
| Overall Height | 191.01 mm / 7.52 in |
| Number of Teeth | 15 |
| Internal Threads | 9/16″-18 UNF-2B, M10, 1-1/16″-12 UN-2B |
| Weight | 20.45 kg / 45.09 lb |
| Cat Reman Reference | 11R-1433 |
Frequently Asked Questions (FAQ)
Q1: What is the CAT 564-9801 hydraulic pump used for?
The CAT 564-9801 is a hydraulic fan piston pump that supplies pressurized hydraulic oil to the cooling fan motor, supporting engine cooling and temperature regulation.
Q2: Which Caterpillar machines use the 564-9801 pump?
Listed applications include selected CAT 336, 336 GC, 340, 345 GC, and 374 excavators, the MH3250 material handler, and 336 MHPU hydraulic power unit applications.
Q3: What is the housing material of the 564-9801 pump?
The official Cat parts listing identifies ductile iron as the housing material.
Q4: What is the weight of the 564-9801 hydraulic pump?
The published weight is approximately 20.45 kg (45.09 lb).
Q5: Is 564-9801 related to part number 11R-1433?
Yes. The Cat Parts Store lists 11R-1433 as a Cat Reman piston pump alternative for 564-9801. Confirm the required product type and condition before purchasing.
Q6: What information should buyers provide when requesting a quotation?
Buyers should provide the part number, machine model, equipment serial number, required quantity, and destination country to support compatibility checks and quotation preparation.
Q7: Can Haozheng Hydraulic supply aftermarket replacement pumps?
Guangdong Haozheng Hydraulic Equipment Co., Ltd. specializes in hydraulic pumps and related components. Contact our sales team for product availability, specifications, and replacement inquiries.
Haozheng Hydraulic Production Processing Diagram
Haozheng Hydraulic Honorary Certificate
Exhibition
FAQ
Q1: Is this 350-0666 pump replacement completely ready for plug-and-play installation? A: Yes. Our 350-0666 pump group is supplied as a fully built assembly, including the primary variable-displacement piston pump and the attached, pre-calibrated control regulator valve block. All ports are capped with heavy blind plugs to prevent any particle ingress during transit.
Q2: How do you verify that this aftermarket pump matches Caterpillar’s strict performance standards? A: We fully understand that downtime on a heavy D8T bulldozer is extremely expensive. Every single 350-0666 pump assembly is run through exhaustive loading loops on our factory’s heavy-duty testing equipment. We monitor internal pressure curves, dynamic response times, and seal temperatures under maximum continuous load to guarantee full compliance before shipping.












