487-6207, CA4876207, 566-7021 Excavator Hydraulic Pump
Suitable for 301.5/301.6/301.7CR/301.8/302CR/302.5C/303.5 excavator models
Hydraulic Pump Specifications
| Pump Type |
OEM Part Number |
Applicable Equipment Model |
Displacement (cc/r) |
Rated Pressure (MPa) |
Rotation Direction |
| Axial Piston Pump |
487-6207 |
301.5/301.6/301.7CR |
12.5 |
28 |
Clockwise |
| Axial Piston Pump |
423-0097 |
305.5E/306E/307E |
65 |
32 |
Clockwise |
| Axial Piston Pump |
272-6959 |
325D/329D/DL |
145 |
35 |
Clockwise |
| Axial Piston Pump |
369-9655 |
374F/390F |
280 |
38 |
Clockwise |
| Axial Piston Pump |
307-3063 |
415F/416F/422F |
112 |
31 |
Clockwise |
| Gear Pump (Pilot) |
560-0886 |
Full Range Excavators |
8.2 |
21 |
Clockwise |
| Axial Piston Pump |
295-9426 |
349 Series |
160 |
36 |
Clockwise |
| Gear Pump (Auxiliary) |
175-6253 |
Loaders/Backhoes |
10.5 |
24 |
Clockwise |
Equipment Compatibility Guide
1. Mini Excavators (3-10 tons)
Main Pumps: 487-6207, CA4876207, 566-7021, 241-7972, 163-9762, 241-9299
Adaptation: 301.5/301.6/301.7CR/301.8/302CR/302.5C/303.5
Pilot/Gear Pumps: 560-0886, 211-6626
2. Small Excavators (3-10 tons)
Main Pumps: 423-0097, 397-3941, 214-1091, 4I-1023, 348-7627, 7Y-4002, 247-7867, 358-5004
Adaptation: 305.5E/306E/307D/308E/312D/317
Pilot/Gear Pumps: 126-2016, 284-3536
3. Medium Excavators (20-36 tons)
Main Pumps: 272-6959, 289-7917, 272-6955, 259-0815/10 R-8707, 451-9302, 341-2860, 567-9721, 593-8367, 436-6669, 438-1293, 244-8479, 272-6957, 339-0513, 123-2233, 126-2073, 119-5407, 497-8499, 114-0602, 0R-8102
Adaptation: 320D/D2/323D2/326GC/329D/330D/336D/D2XE
Rotary Pumps: 204-4916, 204-4922
Pilot/Gear Pumps: 175-6253, 397-6960
4. Large Excavators (over 37 tons)
Main/Rotary Pumps: 369-9655, 593-3840, 584-0380, 627-1304, 295-9426, 550-4341, 194-8259, 361-0718, 353-5691, 362-8488, 510-7950
Adaptation: 336GC/340/345/349/374F/385/390F/395GC
Pilot/Gear Pumps: 564-9801, 234-4638
5. Loaders/Backhoes
Main Pumps: 307-3063, CA3073063, 20R-6569, 161-6634, 235-4110, 100-3259, 121-7385
Adaptation: 415F/416C/D/E/F/422F/426F/428D/F, engine C3.4/C4.4
Pilot/Gear Pumps: 175-6253, 397-6960
6. Bulldozers
Main Pumps: 9T-8647, 9T-8346, 100-6239/OR-7677, 9J-5068, 9T-8647, 6E-5072
Adaptation: D7R/H, D8N/R, D9R, 140G
Gear Pumps: 9T-1318, 104-1752
7. Mining/Heavy Equipment
Main Pumps: 584-0379, 4208636, 4208637, 153-9624, 254-5147, 235-2716
Adaptation: 374F, 6015B, 988G, 966H
Auxiliary Pump: 590-7889, 9U-6600 (manual hydraulic pump)
Frequently Asked Questions
Q1: What are the most common hydraulic pump types in equipment?
A: The most common types are axial piston pumps (main power units for excavators/loaders), gear pumps (pilot/auxiliary systems), and a small number of vane pumps (legacy models only).
Q2: How do I confirm the correct OEM part number for a Cat hydraulic pump?
A: Refer to the equipment's official parts manual, check the nameplate on the original pump, or provide the equipment model and serial number to an authorized Cat dealer for verification.
Q3: What are the top causes of Cat hydraulic pump failure?
A: Leading causes include hydraulic oil contamination, insufficient oil level/lubrication, long-term operation beyond rated pressure/flow, seal damage, and lack of regular maintenance.
Q4: Can aftermarket pumps replace Cat OEM hydraulic pumps?
A: Yes, but only if the aftermarket pump matches the OEM model's displacement, rated pressure, mounting standard, and shaft specifications. OEM parts are recommended for heavy-duty applications to maintain warranty and performance.
Q5: How to extend the service life of a Cat hydraulic pump?
A: Replace hydraulic oil and filters per the maintenance schedule, keep the system sealed to avoid contamination, monitor operating temperature (50-80°C optimal), and avoid dry starts or prolonged no-load high-speed operation.
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