This quality used Stanadyne 780321 fuel injector is designed for compatible International/Navistar DT360 and DT466 diesel engines. This mechanical diesel injector provides a cost-effective replacement for a worn or failed injector in older International school buses, medium-duty trucks, and commercial vehicles.

The 780321 injector assembly crosses to several International/Navistar numbers, including 1817016C91, 735464C91, and 1817015C1. The Quality listing also identifies 781777 and 770763 among its reference numbers.

A properly functioning mechanical fuel injector helps maintain correct fuel atomization, combustion, engine performance, and fuel efficiency. For proper fitment, verify 780321 or the applicable International/Navistar cross-reference number against the original injector and engine information before ordering.

Part Specifications

• Manufacturer: Stanadyne / International
• Part Type: Mechanical Diesel Fuel Injector
• Primary Part Number: 780321
• Engine Applications: International DT360 / DT466
• Fuel System: Mechanical Diesel Injection
• Condition: Used
• Stock Number: 36I-780321-STK
• Warranty: Standard

Common Applications

• International DT360 Diesel Engines
• International DT466 Diesel Engines
• International/Navistar Medium-Duty Trucks
• International School Bus Chassis
• Older School Bus Applications
• Commercial Trucks
• Vocational Trucks

The exact injector/nozzle configuration can vary within the DT engine family. Stanadyne’s documentation shows the 780321 holder assembly being paired with several different nozzle assemblies, so customers should verify their original injector number rather than purchasing solely by engine model.

Please note that the part sent may not precisely match the one shown in the picture. Appearance may vary. For specific part requests, please contact us. An additional core charge may apply.

OEM # 780321, 1817016C91, 781777, 770763, 1817016C91R, 735464C91, 1817015C1, ZGA735464, NAV1817016C91, NAV1817015C1, NAV735464C91, 1817016C91, F735464C91, SPFLDRM, F735464C91

CALL or TEXT: 888-315-2575