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438-1293、244-8479、272-6957 CAT medium-sized excavator (20-36 tons) plunger pump hydraulic motor adapted for
438-1293、244-8479、272-6957 CAT medium-sized excavator (20-36 tons) plunger pump hydraulic motor adapted for
438-1293、244-8479、272-6957 CAT medium-sized excavator (20-36 tons) plunger pump hydraulic motor adapted for
438-1293、244-8479、272-6957 CAT medium-sized excavator (20-36 tons) plunger pump hydraulic motor adapted for
Specifications
Model Number :
CAT
Place of Origin :
USA
MOQ :
1
Payment Terms :
MoneyGram,T/T,Western Union,D/P,D/A,L/C
Supply Ability :
100
Delivery Time :
2 weeks
Packaging Details :
wooden box
Displacement Range :
8.2–280 cc/r (adjustable for variable-displacement pumps)
Rotation Direction :
Clockwise (CW, standard), Counterclockwise (CCW, custom order only)
Axial piston pumps, gear pumps :
Match displacement to equipment power demand; higher cc/r = larger flow rate
Operating Temperature :
Standard: -20°C to 90°C; Custom low-temperature: -40°C to 90°C (special oil seal)
Mounting Standard :
SAE A/B/C/D, Custom flange/foot mounting for special equipment
Description

438-1293,244-8479,272-6957 CAT medium-sized excavator (20-36 tons) plunger pump hydraulic motor adapted for

Pump Type OEM Part Number Applicable Equipment Model Displacement (cc/r)
Axial Piston Pump 487-6207 301.5/301.6/301.7CR 12.5
Axial Piston Pump 423-0097 305.5E/306E/307E 65
Axial Piston Pump 272-6959 325D/329D/DL 145
Axial Piston Pump 369-9655 374F/390F 280
Axial Piston Pump 307-3063 415F/416F/422F 112
Gear Pump (Pilot) 560-0886 Full Range Excavators 8.2
Axial Piston Pump 295-9426 349 Series 160
Gear Pump (Auxiliary) 175-6253 Loaders/Backhoes 10.5

438-1293、244-8479、272-6957 CAT medium-sized excavator (20-36 tons) plunger pump hydraulic motor adapted for

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

FAQ:

Q1: What is the role of a charge pump in Cat variable-displacement pumps?

A: The charge pump supplies low-pressure oil to lubricate internal pump components and maintain control chamber pressure for displacement adjustment.

Q2: How to test a Cat hydraulic pump for internal leaks?

A: Perform a pressure holding test: close the outlet valve, maintain pressure for 5 minutes, and check if the pressure drops beyond the allowable range (leaks indicate internal wear).

Q3: What is the application of Cat pump part number 550-4341?

A: 550-4341 is a main pump suitable for mid-to-large excavators like 336GC/340/345GC.

Q4: Can using the wrong hydraulic oil viscosity damage the pump?

A: Yes—oil with too high viscosity increases startup load and friction, while too low viscosity reduces lubrication and causes internal wear.

Q5: What is the warranty period for a new Cat OEM hydraulic pump?

A: The standard warranty period for new Cat OEM pumps is 12 months or 2,000 operating hours, whichever comes first, when installed by an authorized dealer.

Q6: How to dispose of a damaged Cat hydraulic pump?

A: Contact an authorized Cat service provider or a qualified waste disposal company to ensure compliance with local environmental regulations for hydraulic component disposal.

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438-1293、244-8479、272-6957 CAT medium-sized excavator (20-36 tons) plunger pump hydraulic motor adapted for

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Product Detail
Model Number :
CAT
Place of Origin :
USA
MOQ :
1
Payment Terms :
MoneyGram,T/T,Western Union,D/P,D/A,L/C
Supply Ability :
100
Delivery Time :
2 weeks
Contact Supplier
438-1293、244-8479、272-6957 CAT medium-sized excavator (20-36 tons) plunger pump hydraulic motor adapted for
438-1293、244-8479、272-6957 CAT medium-sized excavator (20-36 tons) plunger pump hydraulic motor adapted for

Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd.

Verified Supplier
1 Years
fujian
Business Type :
Manufacturer, Exporter
Main Products :
Gear Pump, Rexroth Hydraulic Pump, Parker Denison Hydraulic Pump
Total Annual :
1 million-10 millon
Employee Number :
>50
Certification Level :
Verified Supplier
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