original 250-1303 Fuel Injector Machinery Engine Parts 250-1312 2501303 for 994D Loader Common Rail Injector new injector original new injector

Engineered specifically for the 3512B platform, the 250-1303 fuel injector is a direct-fit replacement designed to match the fuel delivery requirements of the 3500 Series engine family. Precision fuel metering is maintained under varying load conditions, while superior atomization produces consistent spray patterns that support complete combustion across each cylinder. Heavy-duty, wear-resistant and heat-resistant materials ensure reliable operation in continuous-duty power generation, marine propulsion, and heavy industrial service environments.


The injector carries the primary OE number 250-1303 / 2501303 and is cross-referenced with 392-0226, 229-0202, 172-4677, 392-0211, 10R-1276, 0R-9796, OR-9796, 250-1302, 250-1304, 250-1306, 392-0200, 392-0202, 392-0225, 386-1776, 437-7547, and 246-1854, allowing interchange across multiple 3508B, 3512B, and 3516B engine arrangements. Corrosion-resistant construction and high-temperature stability make the unit suitable for marine, offshore, mining, oil and gas, and construction equipment applications. Recommended service intervals include fuel filter inspection every 250 hours, full fuel system inspection every 500 hours, and injector performance inspection every 1000 hours, with bench testing at every major overhaul.


Produced according to industrial diesel injection standards, this 250-1303 injector is recognized by global aftermarket distributors, rebuilders, service companies, and fleet operators. Diagnostic procedures including flow testing, return flow testing, leak testing, nozzle inspection, cylinder balance testing, and fuel pressure testing can be performed using standard diesel service equipment. The injector is supplied in standard industrial export packaging and is ready for installation into compatible 3512B, 3508B, and 3516B engines used in generator sets, marine vessels, mining equipment, drilling rigs, and stationary power plants worldwide.