original 20R-1259 High Quality Common Rail Diesel Injector Pump Spare Part 10R-7221 10R-2828 for C9 Excavator E330D new injector original new original new injector

The C9 Fuel Injector 20R-1259 is engineered specifically for the C9 and C9 ACERT inline 6-cylinder, 8.8-liter diesel engines, delivering precise fuel metering and superior atomization for heavy-duty industrial operations. As an OEM standard replacement component, it integrates seamlessly with the engine's high pressure common rail fuel system and electronic fuel management, supporting advanced combustion control and ACERT emission technology for optimized fuel consumption and low emission performance.

Manufactured using CNC machining technology with micron-level tolerances, this injector features premium alloy steel construction, advanced surface treatment for corrosion resistance, and high pressure resistance designed to withstand extreme fuel pressure environments. Thermal stability ensures consistent injector performance under high engine temperatures, while the precision-engineered nozzle and internal components provide accurate fuel delivery, enhanced combustion performance, and long service life in demanding applications including mining equipment, construction machinery, industrial generator sets, and marine engine installations.

Designed as a direct replacement for 330D and 336D excavators, 950H and 966H wheel loaders, D6R and D7R bulldozers, generator applications, and commercial marine vessels, this injector addresses common symptoms such as hard starting, black or white smoke, engine knock, and high fuel consumption caused by injector wear, nozzle wear, fuel leakage, or poor atomization. Installation follows service specifications, including cleaning the cylinder head bore, installing a new sealing washer, lubricating O-rings, torquing the hold-down clamp, programming the injector trim code if required, and performing the fuel system bleed procedure to verify proper operation.