Caterpillar CAT 321-0655 Common Rail Injector for C4.4/C6.6 Engine
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| Part Number | 321-0655 / 3210655 |
| Product Type | High Pressure Common Rail Injector |
| Engine Model | Caterpillar C4.4, C6.6 |
| Interchange Part Number | 2645A751 |
| Injection Nozzle Material | Alloy Steel |
| Working Pressure Range | Typical Common Rail Pressure (Approx. 2000-2500 Bar) |
OEM Part No.
321-06553210655
Engine Part No.
CAT C6.6CAT C4.4
Interchange No.
2645A751
Fitment Vehicles
Caterpillar excavator (compatible with C6.6/C4.4 series models)
Fuel System - Industrial Encyclopedia
Professional supply of Caterpillar (Caterpillar) original standard replacement diesel injectors, part number 321-0655 (3210655). This injector is a high-pressure common rail type, precisely compatible with Caterpillar C4.4 and C6.6 series engines, widely used in excavators and generator sets such as 320D. Compatible with BOSCH electronic control system design, precise injection pressure, and good atomization effect. It can also replace part numbers such as 2645A751, ensuring engine combustion efficiency and low emissions. Please check the original vehicle part number before installation.