original 222-5965 Diesel Fuel Injector Nozzle for 3126B 3126E C7 C9 Engine Excavator Parts 2225965 196-1401 188-1320 173-9380 Fuel Injector original new injector

Engineered for demanding heavy-duty diesel applications, the 222-5965 HEUI fuel injector delivers precision-controlled fuel delivery for . 3126, 3126B, and 3126E engine platforms. This Hydraulically Actuated Electronically Controlled Unit Injector integrates high-pressure engine oil actuation, electronic control signals, and multi-hole nozzle atomization to achieve accurate fuel metering across the full engine load range. Cross-referenced with authorized numbers 0R-9348, EX639348, 145-9360, 155-1819, 173-1012, 173-4566, 173-9379, 188-1320, 12739379, 1573727, 1697408, 1719710, 1739380, DT0R9348, H0R9348, and HEUIOR9348R, this component is a direct-fit replacement for OEM applications.

Manufactured using hardened alloy steel and precision-machined internal components, this injector delivers enhanced atomization, superior spray patterns, and extended service life under continuous industrial duty cycles. Optimized combustion efficiency reduces fuel consumption and lowers particulate emissions, supporting cleaner engine operation. Designed to meet or exceed original . performance specifications, the 222-5965 is suitable for construction equipment, mining machinery, marine propulsion, power generation units, commercial trucks, school buses, agricultural equipment, and oil & gas applications worldwide.

For optimal installation, clean the injector bore thoroughly, replace all O-rings and sealing washers, and perform a full fuel system leak test. Verify ECM calibration and conduct a cylinder balance test after installation. Backed by a 12-month warranty and supported by global diesel injection supply chains for reliable fleet sourcing.