Caterpillar CAT 10R-7221 Fuel Injector Assembly - Compatible with C9 Engine Common Rail Injector
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| Part Number | 10R-7221 / 10R7221 |
| Product Type | Common Rail Fuel Injector Assembly |
| Engine Model | Caterpillar C9 (8.8L), C7 |
| Fuel System | Common Rail Injection System by HEUI |
| Injector Type | Electro-Hydraulic Drive Injector (HEUI) |
| Working Pressure | Up to 30,000 psi (approximately 2068 bar) |
| Material | High Strength Alloy Steel |
| Status | New/Remanufactured |
| Warranty | 6 to 24 months |
| Interchange Part Number | 387-9434, 293-4071, 267-9734, 266-4446, 20R-8063, 328-2573 |
Manufacturer No.
10R-722110R7221
OEM Part No.
10R-722110R7221
Engine Part No.
C9C73126
Interchange No.
387-94343879434293-40712934071267-97342679734266-4446266444620R-806320R8063328-25733282573AP63946APP41327715651AT
Fitment Vehicles
Caterpillar 330D ExcavatorCaterpillar 336D ExcavatorCaterpillar D6R BulldozerCaterpillar D6T BulldozerCaterpillar D7R BulldozerCaterpillar 160M GraderCaterpillar 140M GraderCaterpillar 814F CompactorCaterpillar 815F CompactorCaterpillar 816F CompactorCaterpillar 627G LoaderCaterpillar 637G LoaderCaterpillar 521 HarvesterCaterpillar 522 HarvesterCaterpillar 532 HarvesterCaterpillar 2390 Logging MachineCaterpillar 2391 Logging MachineCaterpillar D3K XL BulldozerCaterpillar D4K XL BulldozerCaterpillar D5K XL BulldozerCaterpillar 973D Loader
Fuel System - Industrial Encyclopedia
Purchase the Caterpillar 10R-7221 Fuel Injector Assembly, suitable for CAT C9 engine. This fuel injector uses common rail technology to provide precise fuel atomization and flow control, optimizing combustion efficiency. Compatible with interchange numbers 387-9434, 293-4071, 267-9734, etc. Suitable for 330D, 336D excavators, D6R bulldozers, 160M graders, and other construction machinery. Offers new and remanufactured options to ensure reliable performance.