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567-9721、593-8367、436-6669 CAT medium-sized excavator (20-36 tons) plunger pump hydraulic main pump adapted for 320D/D2/323D2/326GC/329D/330D/336D

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567-9721、593-8367、436-6669 CAT medium-sized excavator (20-36 tons) plunger pump hydraulic main pump adapted for 320D/D2/323D2/326GC/329D/330D/336D

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Brand Name : CAT

Model Number : 567-9721、593-8367、436-6669

Certification : ISO

Place of Origin : USA

MOQ : 1

Payment Terms : MoneyGram,Western Union,T/T,L/C,D/A,D/P

Supply Ability : 100

Delivery Time : 2 weeks

Packaging Details : wooden box

Axial piston pumps, gear pumps : Match displacement to equipment power demand; higher cc/r = larger flow rate

Mounting Standard : SAE A/B/C/D, Custom flange/foot mounting for special equipment

Control Mode : Manual control, Hydraulic proportional control, Electric proportional control (PLC)

Oil Cleanliness Grade : Standard: NAS 9; Custom high-purity: NAS 6 (for precision control systems)

Parameter Category : Customizable Options

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567-9721,593-8367,436-6669 CAT medium-sized excavator (20-36 tons) plunger pump hydraulic main pump adapted for 320D/D2/323D2/326GC/329D/330D/336D/D2XE

Pump Type OEM Part Number Applicable Equipment Model
Axial Piston Pump 487-6207 301.5/301.6/301.7CR
Axial Piston Pump 423-0097 305.5E/306E/307E
Axial Piston Pump 272-6959 325D/329D/DL
Axial Piston Pump 369-9655 374F/390F
Axial Piston Pump 307-3063 415F/416F/422F
Gear Pump (Pilot) 560-0886 Full Range Excavators
Axial Piston Pump 295-9426 349 Series
Gear Pump (Auxiliary) 175-6253 Loaders/Backhoes

567-9721、593-8367、436-6669 CAT medium-sized excavator (20-36 tons) plunger pump hydraulic main pump adapted for 320D/D2/323D2/326GC/329D/330D/336D

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

2, Small excavator (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, etc

Pilot/gear pump: 126-2016, 284-3536

3, Medium sized excavator (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, etc

Rotary pumps: 204-4916, 204-4922

Pilot/gear pump: 175-6253, 397-6960

4, Large excavator (over 37 tons)

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

5, Loader/Busy at both ends (415F/416F/422F/426F/428F, etc.)

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

6, Bulldozer (D7/D8/D9 series)

Main pumps: 9T-8647, 9T-8346, 100-6239/OR-7677, 9J-5068, 9T-8647, 6E-5072

• Adaptation: D7R/H, D8N/R, D9R, 140G, etc

Gear pump: 9T-1318, 104-1752

7, Mining/heavy equipment (374F/390F/988G/966H, etc.)

Main pumps: 584-0379, 4208636, 4208637, 153-9624, 254-5147, 235-2716

• Adaptation: 374F, 6015B, 988G, 966H, etc

• Auxiliary pump: 590-7889, 9U-6600 (manual hydraulic pump)

FAQ:

Q1: What is the part number for the main pump of Cat 320D?

A: Common main pump part numbers for Cat 320D include 272-6955 and HPV145 (OEM collaboration model).

Q2: How to store a spare Cat hydraulic pump?

A: Store the pump in a clean, dry, and ventilated area, seal all ports to prevent contamination, and avoid placing heavy objects on it.

Q3: What is the difference between a fixed-displacement and variable-displacement Cat pump?

A: Fixed-displacement pumps deliver a constant flow rate at a given speed, while variable-displacement pumps adjust flow based on system demand, improving energy efficiency.

Q4: What causes a hydraulic pump to lose pressure?

A: Pressure loss is caused by internal pump wear, leaking seals, a faulty relief valve, or air in the hydraulic system.

Q5: Are Cat hydraulic pumps compatible with biodegradable hydraulic oil?

A: Yes, but only if the oil meets Cat’s specifications and is compatible with the pump’s seal materials; consult a dealer for recommendations.



Product Tags:

CAT excavator hydraulic main pump

      

320D excavator plunger pump

      

medium-sized excavator hydraulic pump

      
China 567-9721、593-8367、436-6669 CAT medium-sized excavator (20-36 tons) plunger pump hydraulic main pump adapted for 320D/D2/323D2/326GC/329D/330D/336D wholesale

567-9721、593-8367、436-6669 CAT medium-sized excavator (20-36 tons) plunger pump hydraulic main pump adapted for 320D/D2/323D2/326GC/329D/330D/336D Images

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