original 0R-1746 Common Rail Fuel Injector 7W-7026 0R-3423 CA7W7026 Diesel Injector Pump for 3406B 3406C 3408 3408C 3412 3412C D9R Tractor SR4 Generator original new injector

Engineered for demanding diesel fuel injection applications, the 0R-1746 injector nozzle delivers precise fuel atomization for 3126, 3306, and 3406 series engines. Manufactured from high strength alloy steel and finished through advanced CNC machining, this replacement component meets OEM dimensional tolerances and performance specifications. Cross-referenced with 320-1746, 9N7075, and 7N2537, it offers a direct-fit solution for fleet operators, engine rebuilders, and industrial maintenance teams sourcing reliable injection system parts.

Optimized spray hole geometry ensures complete combustion, minimizes carbon deposits, and supports stable fuel efficiency across variable load conditions. Advanced heat treatment increases surface hardness and extends service life under sustained high-pressure operation, while corrosion-resistant surface treatments protect against fuel contamination and environmental exposure. Built to withstand extreme injection pressures and operating temperatures, the nozzle maintains a consistent spray pattern throughout its duty cycle. Each unit is supplied brand new with a 12-month warranty for confidence in critical applications.

Widely deployed in construction equipment, mining machinery, marine propulsion, power generation sets, agricultural machinery, and heavy-duty industrial systems, the 0R-1746 nozzle serves global export markets including North America, South America, Europe, the Middle East, Africa, Southeast Asia, and Australia. Installation requires complete fuel pressure relief, clean bore preparation, torque to OEM specifications, and spray pattern verification. Buyers should always confirm compatibility using engine serial numbers and OEM parts catalogs before ordering.