Caterpillar original 306-9380 Common Rail Diesel Fuel Injector, OEM Replacement, Cross Reference 10R-7672 320-0690 282-0490, Fits Caterpillar C6.6 C6.4 C4.4 Engines & Excavators original new injector

For heavy equipment fleet operators, maintenance providers and industrial parts distributors seeking verified OEM-spec Caterpillar components, the 306-9380 C6 Series diesel fuel injector delivers guaranteed fitment for targeted CAT engine platforms. Designed as a direct original equipment replacement, it carries cross reference numbers 10R-7225 (10R7225) and 326-6708 (3266708), and is compatible with CAT Industrial C6, C6.4 and C6.6 inline 6 diesel engines with 4.4–6.6L displacement and 120–220 HP output. It supports a wide range of heavy-duty assets across construction, mining, power generation, agriculture and marine auxiliary sectors.

Manufactured with precision CNC-machined components and hardened steel internals, the injector features a multi-hole nozzle that supports precise fuel metering, optimized atomization and uniform combustion under high-pressure, high-temperature operating conditions. Its OEM-grade construction delivers exceptional corrosion and wear resistance, high load tolerance, extended service intervals and improved fuel economy, while low-emission performance aligns with relevant international standards to support regulatory compliance for industrial fleets.

The injector supports standardized installation with a CAT 2-pin connector, 40–50 Nm torque specification and 1200–1600 bar fuel pressure, with CAT DEF-compliant diesel recommended for optimal performance. It follows structured maintenance intervals ranging from 250-hour visual inspections to 6000-hour replacement evaluations, and is validated for use across global markets, serving equipment from excavators and wheel loaders to dozers and generator sets to maximize uptime and reduce total operational costs.