The part number 5010715R91 appears to correspond to a fuel injector designed for International/Navistar DT466 diesel engines. Here’s what you should know:

Key Details:

• Application:

• Compatible with International/Navistar DT466 diesel engines (common in International trucks and buses).

• May also fit other engines in the DT series (e.g., DT466E, HT466).

• Injector Type:

• Likely a hydraulic electronic unit injector (HEUI) for later DT466E models (if electronically controlled).

• Earlier mechanical DT466 engines may use different injectors.

• The 5010715R91 fuel injector for the International/Navistar DT466 engine is a critical component designed for optimal fuel delivery, combustion efficiency, and durability. Below are its key technical advantages and features:

• 1. Precision Fuel Delivery

• High-Pressure Injection: Ensures fine atomization of diesel fuel for complete combustion, reducing emissions and improving fuel efficiency.

• Consistent Flow Rates: Maintains uniform fuel spray patterns across all cylinders for balanced engine performance.

• 2. Compatibility & Engine Optimization

• Designed for DT466 Engines: Specifically engineered for DT466, DT466E, and HT466 engines (mechanical and HEUI versions, depending on the model year).

• Supports HEUI System (if applicable): If used in a DT466E, it works with the Hydraulic Electronic Unit Injector (HEUI) system, which uses engine oil pressure to control injection timing and pressure.

• 3. Durability & Reliability

• Robust Construction: Built with hardened materials to withstand high pressures (up to 30,000+ PSI in HEUI systems).

• Corrosion-Resistant Coatings: Protects against wear from diesel sulfur content and contaminants.

• Long Service Life: Designed for extended use with minimal degradation in performance.

• 4. Performance Enhancements

• Improved Combustion Efficiency: Reduces unburned fuel and soot, leading to lower emissions (meets EPA standards for older diesel engines).

• Optimized Spray Pattern: Ensures better air-fuel mixing, enhancing power output and throttle response.

• 5. Electronic Control (HEUI Models)

• Integrated Solenoid Valve (if electronic): Allows precise ECU-controlled injection timing for better performance under varying loads.

• Faster Response Time: Adjusts fuel delivery dynamically based on engine demands.

• 6. Reduced Maintenance Needs

• Self-Cleaning Design: Minimizes carbon buildup on injector tips.

• Leak-Resistant Seals: Prevents fuel or oil leaks (critical in HEUI systems where engine oil is used for injection pressure).

  OEM Cross References:

• 1890056C1, 1890056C2, 19513522D, 4333-1890055C92, 43331890055C92, 480263X, 5010715, 5010715R, 5010715R91, 5010753R91, 66955, 6915-PP, 6915PP, 6932, 6932-JS, 6932-PP, 6932JS, 6932PP, 718-514, 718514, AP66855, AP66955, DE06055, EX638489, R-5010715R91, R5010715R91, RPP5010715X