Fuel Manifold Cummins 3977530 | 0445226042, 3978448, 6754-71-1210

High-Performance Fuel Distribution for Cummins Engines

The Cummins 3977530 fuel manifold (also referred to as a common rail fuel distributor pipe) is a critical component designed to manage and distribute high-pressure diesel fuel to your engine’s fuel injectors. Engineered to withstand extreme operating pressures, this fuel manifold ensures that fuel is delivered evenly and consistently across all cylinders, preventing pressure drops and optimizing combustion efficiency.

This part is also available under the numbers: 0445226042, 3978448, and 6754-71-1210.

Key Features and Benefits

• Precise Pressure Regulation: Maintains stable fuel pressure within the common rail system, reducing pulsations and ensuring smooth engine operation.
• Durable Construction: Manufactured from high-strength materials to resist wear, corrosion, and the intense thermal demands of heavy-duty diesel environments.
• Perfect Fitment: Designed to exact Cummins specifications for seamless integration and hassle-free installation.
• Enhanced Fuel Efficiency: Promotes complete fuel atomization, helping to improve fuel economy and reduce exhaust emissions.

Application and Compatibility

This fuel manifold is widely used in Cummins ISB, QSB (including QSB 5.9 and QSB 6.7), and ISDe series engines. It is also commonly found in various industrial and construction equipment, such as Komatsu excavators (including PC200-8 and PC210 models equipped with the 6D107 engine).

Cross-Reference / Interchange Part Numbers

This part replaces / is interchangeable with the following part numbers:

• 3977530
• 0445226042
• 3978448
• 6754-71-1210
• 6754-72-1221