Caterpillar original 573-4235 Common Rail Fuel Injector Excavator Injector Assemblies for C9 C7 C13 C15 Engines, Replacement for OEM 20R-8427, Compatible with 20R-1259 10R-7221 original new injector

Engineered to meet the demands of heavy-duty CAT C9 diesel engine platforms, the 573-4235 electronic fuel injector assembly serves as a reliable OEM-equivalent replacement for a broad range of industrial and mobile equipment. It is compatible with all qualifying C9 variants, including C9 ACERT, industrial, marine, generator, and power unit models, and validated for deployment across construction, mining, power generation, marine, oil and gas, agriculture, and industrial manufacturing sectors. Its confirmed equipment fit covers hydraulic excavators, wheel loaders, motor graders, soil compactors, articulated trucks, mining, and road construction machinery.

Built to strict OEM manufacturing tolerances from high-strength alloy steel and corrosion-resistant materials, this injector delivers precise, electronically controlled fuel metering and optimized atomization. Its precision-machined nozzle and high-pressure capability produce a finely calibrated spray pattern that supports complete, efficient combustion, translating to lower fuel consumption, reduced exhaust emissions, consistent power output, improved cold-start performance, and extended engine service life for equipment operators. Durable internal components also cut long-term maintenance costs for industrial and heavy equipment operators.

Every new 573-4235 injector is shipped in export-standard packaging and comes with a 12-month warranty for B2B buyers. It follows standardized OEM dimensions for straightforward installation per official torque specifications, with clear scheduled maintenance guidelines (including 250-hour fuel filter checks and 2000-hour fuel system cleaning) and established fault diagnostic protocols to minimize unplanned equipment downtime.