The part number 1875072C91 appears to be associated with Ford F-Series diesel common rail fuel injectors, for the 6.7L Power Stroke (Scorpion) engine (2011 and newer models)

The Ford 6.7L Power Stroke common rail fuel injector (1875072C91 / CM-5278) is a high-precision, electronically controlled component designed for modern diesel engines. Below is a brief breakdown of its structure and advantages:

Structure of the Common Rail Injector

• Precision-machined nozzle with micro-holes for optimal fuel atomization.

• A needle valve controls fuel flow, opening/closing at high speeds (up to 5x per combustion cycle).

• Electromagnetically controlled for ultra-fast response (solenoid type in this case).

• Receives signals from the ECM to time fuel delivery precisely.

• Connects to the common rail (pressures up to 30,000+ psi in newer systems).

• Uses fuel pressure to amplify the solenoid’s force for rapid needle movement.

• Internal filters prevent clogging.

• Leak-off channels return excess fuel to the tank.

• Advantages

• Precision Fuel Delivery

• Multiple injections per cycle (pilot, main, post) for smoother combustion and reduced noise.

• Higher Pressure Tolerance

• Supports Ford’s high-pressure common rail system (improves power and efficiency).

• Reduced Emissions

• Optimized spray patterns lower particulate matter (meets EPA Tier 4 standards).

• Durability

• Hardened materials resist wear from ultra-low-sulfur diesel (ULSD) and additives.

• Compatibility with Engine Management

• Integrates with Ford’s ECM for real-time adjustments (e.g., cold starts, load changes).

• Lower Noise & Vibration

• Pilot injections soften combustion knock compared to older mechanical injectors.