Product Description
9J8766 CAT Hydraulic Implement Gear Pump Group - New Aftermarket Replacement
The 9J8766 hydraulic implement gear pump group is a new aftermarket replacement hydraulic pump designed for Caterpillar heavy equipment hydraulic system applications. Hydraulic implement pumps are responsible for supplying pressurized hydraulic oil to critical machine functions including implement controls, lifting systems, blade functions, steering circuits, auxiliary hydraulic systems, and other hydraulic operations depending on equipment configuration.
This replacement hydraulic pump is designed as a dependable alternative to the original Caterpillar 9J8766 hydraulic implement gear pump assembly and is intended for customers performing hydraulic system repairs, preventative maintenance, machine restoration, or replacement of worn hydraulic components in heavy equipment applications.
Heavy-Duty Hydraulic System Operation
Construction and earthmoving equipment operate in demanding environments where hydraulic systems are exposed to constant pressure loads, vibration, heat, contamination, and extended operating cycles. Hydraulic implement gear pumps play a major role in maintaining consistent hydraulic performance throughout the machine.
As hydraulic pumps wear internally over time, equipment operators may experience weak hydraulic response, slower implement movement, pressure loss, increased hydraulic temperatures, noisy operation, or inconsistent attachment performance. Installing the proper replacement hydraulic pump can help restore hydraulic system efficiency and improve overall equipment reliability.
Product Specifications
| Specification | Details |
|---|---|
| Primary Part Number | 9J8766 |
| Alternate Number | 9J-8766 |
| Cross Reference | CA9J8766 |
| Product Type | Hydraulic Implement Gear Pump Group |
| Condition | New Aftermarket Replacement |
| Manufacturer Reference | Caterpillar / CAT |
| Approximate Weight | 114 Pounds |
Replacement & Interchange Information
| Reference Type | Part Number |
|---|---|
| OEM Reference | 9J8766 |
| Alternate Style | 9J-8766 |
| Additional Reference | CA9J8766 |
| Related / Interchange Reference | 3G6002 |
| Related / Interchange Reference | 9T6577 |
Important Application Verification
Hydraulic implement gear pump configurations can vary depending on equipment model, serial number range, shaft dimensions, mounting configuration, hydraulic port arrangement, pump rotation, and hydraulic system revisions. Before ordering, customers should carefully compare the replacement pump with the existing hydraulic pump currently installed on the machine.
It is strongly recommended to verify the exact application using the original OEM part number, machine serial number, service manual, or Caterpillar parts catalog prior to purchase. Proper verification helps ensure correct fitment and hydraulic compatibility for your specific equipment application.
Additional Product Information
This 9J8766 CAT hydraulic implement gear pump group is a new aftermarket replacement hydraulic pump and is not remanufactured or previously used. The pump is intended for heavy equipment hydraulic system repair, preventative maintenance, hydraulic restoration projects, and replacement of worn hydraulic components.
The 9J8766 replacement hydraulic pump is in stock and available for shipment from Ace Motor Parts.
