Caterpillar original Fuel Injector 2645A734 10R-7669 Replacement for OEM 320-0680 Excavator Repair Cross Reference 306-9380, for heavy duty diesel engine application original new injector

The Caterpillar (CAT) 2645A734 is an OEM-specification high-pressure common rail diesel fuel injector purpose-built for Caterpillar and Perkins industrial engine platforms. Listed across global OEM, aftermarket, and remanufactured fuel injection databases with a full set of verified cross-reference part numbers, it supports flexible sourcing for parts distributors, fleet maintenance teams, and repair service providers. It is confirmed to fit CAT C6.6, C4.4, and Perkins 1104D-E44TA, 1106D series industrial engines, reducing compatibility risks for both scheduled overhauls and emergency breakdown repairs.

Engineered for harsh heavy-duty operating conditions, the injector enables precise fuel metering and optimized atomization through its CNC-machined multi-hole nozzle, supporting stable combustion, improved fuel economy, higher power output, reduced exhaust emissions, and better cold-start performance. Its heat-treated internal components deliver exceptional wear and corrosion resistance, while its high-pressure withstand rating supports reliable operation even with varying fuel qualities in field environments, extending overall service life.

The original new injector is compatible with a broad portfolio of industrial equipment, including excavators, wheel loaders, mining and construction machinery, agricultural equipment, diesel generator sets, and road building equipment, serving global sectors spanning infrastructure, mining, agriculture, power generation, and material handling. It adheres to strict OEM quality standards, includes a 12-month warranty, and should be installed per OEM torque, injector coding, and fuel system bleeding guidelines to deliver optimal long-term performance.