Bosch/Cummins 4903290 Fuel Injector Connector (Injector Rod/Tube) for Cummins ISB/ISDe/QSB and other diesel engines 6-piece set
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| Product Name | Fuel Injector Connection Tube/Pin/Tube |
| Original Part Number | 4903290 |
| Material | High-quality steel (some models are made of aluminum alloy) |
| Single Set Quantity | 6 pcs |
| Applicable Engine Series | Cummins ISB/ISBe/ISDe/ISLe/QSB/QSC/QSL/ISG |
| Fuel System | High Pressure Common Rail Fuel Injection System |
| Packaging | Standard cardboard packaging |
| Warranty | 6-12 Months |
Manufacturer No.
BOSCH 4903290
OEM Part No.
4903290
Engine Part No.
Cummins ISB4.5Cummins ISB6.7Cummins ISBeCummins ISDeCummins ISLeCummins QSB4.5Cummins QSB5.9Cummins QSB6.7Cummins QSC8.3Cummins QSL9Cummins ISG12Komatsu SAA6D107E-1
Interchange No.
4088576408857740885784903254492986456862885175565AA5264181
Fitment Vehicles
Dodge Ram 2500Dodge Ram 3500Caterpillar ExcavatorCummins Power Engineering Equipment
Fuel System - Industrial Encyclopedia
Professional supply of Bosch/Cummins 4903290 Fuel Injector Connector (Injector Rod/Tube), commonly known as Fuel Injector Connector or Injector Connecting Rod. This part is a key connection component of the diesel engine fuel injection system, ensuring reliable sealing and fuel delivery between the injector and high-pressure fuel line. This product is compatible with Cummins ISB, ISBe, ISDe, ISLe, QSB, QSC, QSL series engines and is widely used in Dodge Ram 2500/3500 pickups, heavy trucks and construction machinery (such as excavators, loaders). The material of the part is high-quality steel or aluminum alloy, with good durability, each set includes 6 pieces, replacing OEM numbers 4903290, 4088576, 4088577, 4088578, 4903254, 4929864, 5686288, etc.