Bosch/Cummins 4938972 Fuel Injection Pump Assembly for 4BT3.9 ISBE 4B3.9 Engine
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| Product Type | Fuel Injection Pump (Injector Pump) |
| Applicable Emission Stage | Tier 1 |
| Displacement | 3.9L |
| Compatible Engine Series | Cummins B Series (4B/4BT/ISBE) |
| Fuel System Type | Mechanical Inline Pump (Bosch P-Type) |
| Weight | 9.00 kg |
| Manufacturing Process | Precise casting and CNC machining |
| Working Pressure Range | Maximum approximately 1000 bar (typical value for mechanical pump) |
Manufacturer No.
49389720445020606
OEM Part No.
4938972526266952900055290006
Engine Part No.
ISBE 4B3.94BT3.94BT3.9-G24B3.94BTA3.9-G2
Interchange No.
C4938972493897249-389725262669493977352900055290006
Fitment Vehicles
Caterpillar 320D Excavator (equipped with Cummins 4BT engine)Cummins Generator Set 4BT3.9-G2Construction Equipment/Industrial Equipment Applications
Fuel System - Industrial Encyclopedia
Cummins OEM standard 4938972 Fuel Injection Pump Assembly, suitable for Tier 1 Stage 3.9L B Series engines (including 4BT3.9, ISBE 4B3.9 and 4BT3.9-G2 generator sets). This fuel injection pump, authorized by Bosch technology, is responsible for providing high-pressure fuel to the combustion chamber, ensuring correct injection timing and pressure to optimize engine power and fuel economy. Compatible replacement part numbers include C4938972, 5262669, 4939773, 5290005, etc., widely used in construction machinery, generator sets and industrial equipment.