Details:

• Part Number: 5010983R91

• Engine Application: Navistar DT466 (likely for later models, including MaxxForce DT variants)

• Injector Type: High-pressure common rail (likely Bosch CP3 or similar system)

• Usage: Used in International trucks (e.g., Durastar, Workstar, 4000 Series) with DT466 engines.

  The Navistar/International DT466 fuel injector (Part #5010983R91) is a high-precision component designed for the common rail diesel injection system (likely used in later DT466E or MaxxForce DT variants). Below are its key technical features and specifications:

• 1. Injector Type & System Compatibility

• Type: Electro-hydraulic common rail injector (likely Bosch-based design).

• Compatible System: High-pressure common rail direct injection (CRDI).

• Engine Applications:

• Navistar DT466E (later models)

• MaxxForce DT (if equipped with common rail)

• International trucks (DuraStar, WorkStar, 9000 Series)

2. Performance & Design Features

• Precision-Controlled Injection:

• Electronically controlled by the ECM (Engine Control Module) for precise timing and multiple injection events (pilot, main, post-injection).

• High-Pressure Tolerance:

• Designed for ultra-high-pressure (UHP) common rail systems (compatible with CP3/CP4 pumps).

• Durability Enhancements:

• Hardened nozzle tip to resist cavitation and erosion.

• Thermal-resistant materials for extended lifespan under high EGTs (Exhaust Gas Temperatures).

  3. Maintenance & Testing

• Leak-Off Test: Measures injector return flow to identify internal wear.

• Electrical Resistance Check: Should typically be 0.5–2.0 ohms (solenoid resistance).

• Pop Testing/Bench Testing: Verifies spray pattern and opening pressure.

  OEM Cross References:

• 480254X, 5010983R, 5010983R91, 5010983R92, 66989, 6909-PP, 6909PP, 6926, 6926-JS, 6926-PP, 6926JS, 6926PP, 718-512, 718512, ALPAP66989, AP66889, AP66989, DE06089, DE089, EX638489, FSR1848489, FSR1848492, R-5010983R91, R5010983R91, RPP5010983X