423-0097、397-3941、214-1091 Small excavator 3-10 ton hydraulic pump adaptation 305.5E/306E/307D/E/308E/312D/317
High-performance hydraulic pumps designed for small excavators in the 3-10 ton range, compatible with Cat 305.5E, 306E, 307D/E, 308E, 312D, and 317 models.
| 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 |
Main Pump: 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, etc.
Pilot/Gear Pump: 560-0886, 211-6626
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, etc.
Pilot/Gear Pump: 126-2016, 284-3536
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, etc.
Rotary Pumps: 204-4916, 204-4922
Pilot/Gear Pump: 175-6253, 397-6960
Main Pump/Rotary Pump: 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, etc.
Pilot/Gear Pump: 564-9801, 234-4638
Main Pump: 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 Pump: 175-6253, 397-6960
They can be, but the oil must meet Cat's official specifications (e.g., Cat DEO Hydraulic Oil). Using unapproved oil may cause pump wear and void warranty.
The 423-0097 axial piston pump has a displacement of approximately 65 cc/r, suitable for small excavators like 305.5E/306E.
Remanufactured pumps often have a "Reman" label, a unique part number suffix, and are certified by Cat to meet OEM performance standards.
Leaks are typically caused by damaged seals/gaskets, loose fittings, cracked pump housing, or excessive system pressure.
No, most Cat pumps are designed for fixed clockwise rotation (viewed from the drive shaft end), and reversing may cause internal damage.
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