Fuel Injection Pump Cummins 3966817 | 3960919, 3969377

High-Performance Fuel Delivery for Heavy-Duty Engines

The Cummins 3966817 Fuel Injection Pump is a critical component designed to deliver fuel directly to your engine’s combustion chambers under high pressure. By pressurizing and injecting fuel at precise intervals, this pump optimizes combustion efficiency, boosts engine performance, and ensures superior fuel economy. This part is also available under the numbers: 3960919, 3969377.

Engineered for Durability and Reliability

Built with premium-grade materials, the 3966817 fuel injection pump is engineered to withstand extreme operating temperatures and high-pressure environments. It undergoes rigorous testing to meet strict industry standards, ensuring consistent and dependable operation over a long service life. Whether you are operating in construction, agriculture, or commercial transport, this pump helps minimize downtime and reduce overall maintenance costs.

Key Features & Benefits

• Precise Fuel Atomization: Delivers fuel at the exact pressure and timing required for complete combustion and reduced emissions.
• Robust Construction: Manufactured from high-strength materials to resist wear and tear in demanding heavy-duty applications.
• Guaranteed Fitment: Designed to meet exact form, fit, and function specifications for seamless integration with compatible Cummins engines.
• Enhanced Efficiency: Optimizes fuel usage to improve overall vehicle efficiency and lower operating costs.

Compatible Engine Models

This fuel injection pump is commonly used in heavy-duty applications and is compatible with Cummins 6CT, 6CTA 8.3L, and 6BT 5.9L series diesel engines. Please verify your engine model and existing part number to ensure correct fitment before purchasing.

Cross-Reference / Interchange Part Numbers

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

• 3966817
• 3960919
• 3969377