Caterpillar original Fuel Injector 276-8307, for heavy duty diesel engine application, 295-9085, 253-0616, 211-3023 - OEM Replacement for Excavator Machinery Engines original new injector

For maintenance teams, fleet operators and industrial parts distributors sourcing dependable replacement components for Caterpillar power systems, the CAT 276-8307 fuel injector is a precision-engineered solution built for demanding operational conditions. Designed for Caterpillar C18 engine series—including C18 ACERT, industrial, marine and generator variants—it supports use across mining, construction, marine, power generation, and oil and gas sectors. It meets OEM equivalent quality standards and serves as a direct replacement for stock fuel injection system components.

As a core component of the Caterpillar electronic fuel injection system, the 276-8307 operates using high-pressure supplied fuel and ECM-controlled injection timing: its solenoid receives command signals to open the needle valve, delivering atomized fuel into the combustion chamber for controlled, efficient combustion. Key benefits include precise fuel metering, optimized atomization, reduced fuel consumption, lower emissions, stable power output and enhanced engine efficiency. Its high-precision machining, stable injection pressure and extended service life also help reduce unplanned equipment downtime.

For reliable performance, follow Caterpillar installation specifications, including thorough bore cleaning, new seal installation, calibrated torquing and required electronic calibration. Routine maintenance covers fuel filter replacement, fuel quality monitoring, injector balance testing, leak inspection and electronic diagnostics, while common faults such as hard starting, abnormal smoke or power loss can be identified via standard diagnostic checks. The injector comes with a 12-month warranty, and buyers are advised to verify compatibility using their engine serial number before purchase.