Caterpillar CAT 387-9434 (3879434) Fuel Injector Assembly for C9 Engine 330D 336D Excavator D6R D7R Bulldozer
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| Product Name | Fuel Injector Assembly |
| Part Number | 387-9434 / 3879434 |
| Injector Type | Hydraulic Electronic Unit Injector (HEUI) |
| Fuel System | High Pressure Common Rail |
| Working Pressure | 180-200 MPa |
| Flow Rate | 120-135 cc/min |
| Engine Model | Caterpillar C9, C7 |
| Compatible Model | 330D, 336D, D6R, D6R III, D6R STD, D6T, D7R, D7R XR, D7R LGP, 2290, 511, 160M |
| Material | High-strength alloy steel, precision nozzle |
| Product Type | Hydraulic Electronic Unit Injector (HEUI) |
Manufacturer No.
3879434387-9434
OEM Part No.
3879434387-943410R-722110R722120R-806320R806320R-193820R1938328-25733282573293-40712934071267-9434267943426797342664446CA3879434
Engine Part No.
C9C7C-7C-9
Interchange No.
10R-722110R722120R-806320R806320R-193820R1938328-25733282573293-40712934071267-9434267943426797342664446CA3879434
Fitment Vehicles
Caterpillar 330D ExcavatorCaterpillar 336D ExcavatorCaterpillar D6R BulldozerCaterpillar D6R III BulldozerCaterpillar D6R STD BulldozerCaterpillar D6T BulldozerCaterpillar D7R BulldozerCaterpillar D7R XR BulldozerCaterpillar D7R LGP BulldozerCaterpillar 2290 Logging and Piling MachineCaterpillar 511 Logging and Piling MachineCaterpillar 160M Grader
Fuel System - Industrial Encyclopedia
Professional supply of Caterpillar 387-9434 (3879434) fuel injector assembly, suitable for CAT C9 engine and 330D, 336D excavators, D6R, D7R bulldozers, etc. The injector is a common rail type with working pressure of 180-200 MPa and flow rate of 120-135 cc/min, interchangeable with 10R-7221, 20R-8063, 328-2573 and other interchange numbers. New and remanufactured parts are available, strictly calibrated to the original factory specifications, ensuring accurate fuel injection and reducing engine vibration and idle instability.