Caterpillar original 571-0940 Fuel Injector Replacement 20R-4560 370-7282 295700-1200 Common Rail Diesel Injector for Construction Machinery original new injector

The Caterpillar 571-0940 is a brand-new, OE-standard high-pressure common rail diesel fuel injector purpose-built for C4.4 engine platforms and compatible 3044, 3044C, 3054, and 3054C industrial diesel engines. It fits a broad range of heavy-duty equipment across construction, agriculture, mining, and power generation sectors, including excavators, loaders, telehandlers, and industrial generator sets. The unit directly replaces part number 10R-7220 and cross-references to 326-4706 and 326-4707 for flexible fleet parts sourcing.

As a critical fuel system component, it precisely controls fuel delivery volume, spray pattern, injection timing, and atomization efficiency to support stable combustion under continuous heavy-load conditions. Properly calibrated 571-0940 injectors help preserve engine power output, optimize fuel economy, support emissions compliance, improve cold-start reliability, and reduce abnormal combustion-related wear to extend overall engine service life.

Constructed from high-strength alloy steel and produced via CNC precision machining, every unit meets strict OE dimensional tolerances for consistent fuel delivery accuracy. Hardened internal nozzle and valve components deliver enhanced wear resistance, while specialized surface treatment protects against corrosion from fuel contaminants, moisture, and sulfur compounds. Its thermally stable, vibration-resistant design withstands extreme operating conditions for reliable long-term field performance.