Perkins original  295050-0421 Diesel Injector 2950500421 20R-2480 3707287 Replacement for OEM Common Rail Injector for C4.4 Engine  original new injector

The Perkins C4.4 fuel injector 295050-0421 is an OEM-specification electronic common rail injector engineered for the Perkins C4.4 family of 4.4-liter inline four-cylinder diesel engines, including C4.4 ACERT, Tier 3, and Tier 4 variants used in industrial, generator, and heavy-equipment applications. This direct replacement injector carries the primary OE number 295050-0421 along with 600-2, and is fully interchangeable with 2950500421, 295050-0420, 2950500420, 295050-0422, 2950500422, 295050-0419, and 2950500419, enabling accurate cross-referencing for service, overhaul, and fleet maintenance requirements.

Manufactured from high-strength alloy steel using precision machining processes, the 295050-0421 injector is built to handle high injection pressures typical of common rail diesel systems. It delivers stable fuel atomization, optimized combustion, reduced emissions, and improved fuel economy, while providing high pressure resistance, wear resistance, and corrosion resistance for an extended service life. The unit installs as a direct replacement with no modifications required, making it suitable for excavators, wheel loaders, backhoe loaders, skid steers, telehandlers, generator sets, industrial power units, agricultural machinery, and mining equipment operating in construction, agriculture, mining, and power generation sectors.

Proper installation and routine maintenance are essential to maximize injector performance and longevity. Always clean injector seats before installation, use new sealing components, and verify fuel pressure after assembly. Perform injector calibration when required by the engine control system, inspect for leakage after startup, and use ultra-clean diesel fuel with regularly replaced fuel filters to prevent contamination. Periodic injector balance testing and monitoring of fuel consumption help detect early signs of wear such as hard starting, black smoke, power loss, rough idle, or engine misfire, ensuring the 295050-0421 continues to deliver reliable OEM-level performance in demanding Perkins C4.4 applications.