1.Product Introduction
A CAT common rail pump is a high-pressure fuel injection component used in Caterpillar diesel engines. It is a key part of the common rail fuel system, which delivers fuel at high pressure to the engine’s injectors. This system allows for precise control over fuel injection timing and quantity, improving combustion efficiency and reducing emissions .
In a common rail system, the fuel pump pressurizes the fuel and stores it in a shared rail (hence “common rail”) connected to all injectors. The injectors then deliver the fuel into the combustion chamber at the appropriate time, as determined by the engine’s electronic control unit (ECU). This setup allows for multiple injections per combustion cycle, leading to better fuel atomization, more complete combustion, and improved engine performance .
Caterpillar’s common rail pumps are designed to meet the specific requirements of their engines, ensuring optimal performance and durability.
Caterpillar Engine Series with Common Rail Fuel Systems
a. C3.4 and C4 Series
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Engines: C3.4, 3044C
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Applications: Compact loaders and skid steers (e.g., 236B, 246C, 252B, 259B3, 279C2, 289C2)
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Features: Precision-engineered for seamless integration, ensuring optimal fuel delivery and engine performance .
b. C4.4 and C6.6 ACERT Series
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Engines: C4.4, C6.6
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Applications: Excavators (e.g., 320D, 323D), wheel loaders, track-type tractors
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Fuel Pump Features: High-pressure fuel pump, electronically controlled injectors, and a common rail system for precise fuel delivery .
c. C7.1 and C9.3 ACERT Series
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Engines: C7.1, C9.3
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Applications: Medium-duty excavators and trucks (e.g., 336E, 340F, 725C2)
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Features: Designed to deliver precise fuel quantities under high pressure, contributing to efficient engine operation .
d. C13 to C32 ACERT Series
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Engines: C13, C15, C18, C27, C32
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Applications: Heavy-duty equipment and industrial applications
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Fuel System Features: Advanced MEUI-C injector platforms capable of handling increased injection pressures and more precise fuel rates, enhancing responsiveness while controlling soot .
2.Product Model List
| No. | Model | Series |
|---|---|---|
| 1 | 261-4037 | 4.2 |
| 2 | 284-0684 | 4.2 |
| 3 | 292-3749 | 4.2 |
| 4 | 295-9127 | 4.2 |
| 5 | 326-4634 | 4.2 |
| 6 | 352-6584 | 4.2 |
| 7 | 358-9085 | 4.2 |
| 8 | 32E61-30300 | 4.2 |
| 9 | 10R-7659 | 4.4 |
| 10 | 2641A405 | 4.4 |
| 11 | 277-5192 | 4.4 |
| 12 | 283-2271 | 4.4 |
| 13 | 295-9125 | 4.4 |
| 14 | 315-3020 | 4.4 |
| 15 | 324-0532 | 4.4 |
| 16 | 352-6584 | 4.4 |
| 17 | 358-9085 | 4.4 |
| 18 | 292-3750 | 6.4 |
| 19 | 295-9126 | 6.4 |
| 20 | 326-4365 | 6.4 |
| 21 | 326-4635 | 6.4 |
| 22 | 358-9084 | 6.4 |
| 23 | 361-4036 | 6.4 |
| 24 | 32F61-10301 | 6.4 |
| 25 | 32F61-10302 | 6.4 |
| 26 | 10R-7760 | 6.6 |
| 27 | 257-2412 | 6.6 |
| 28 | 276-8398 | 6.6 |
| 29 | 277-5191 | 6.6 |
| 30 | 289-5091 | 6.6 |
| 31 | 289-7496 | 6.6 |
| 32 | 291-5919 | 6.6 |
| 33 | 315-3019 | 6.6 |
| 34 | 317-8021 | 6.6 |
| 35 | 321-1269 | 6.6 |
| 36 | 351-0973 | 6.6 |
| 37 | 354-8436 | 6.6 |
| 38 | 368-9171 | 6.6 |
| 39 | 2641A312 | 6.6 |
| 40 | 2641A315 | 6.6 |
| 41 | 375-2647 | 7.1 |
| 42 | 445025602 | 7.1 |
| 43 | 511-7975 | 9.3 |
| 44 | 3973228 | Cummins CR1600 |
| 45 | 4954200 | Cummins CR1600 |
