Caterpillar original  230-3255 Diesel Engine Fuel Injector for C3500 3508 3512 3516 Replacement for OEM 20R-1277 266-4387 386-1752 20R-1264 original new injector

The Caterpillar 230-3255 fuel injector is a precision-engineered diesel fuel injection component designed specifically for the CAT 3512B engine series, including the 3512B-HD configuration. Built for V12 four-stroke diesel applications with a 51.8-liter displacement, this electronic unit injector delivers high-pressure fuel delivery with accurate metering and optimized atomization for superior combustion efficiency. Its turbocharged and aftercooled engine compatibility ensures consistent performance across demanding operating conditions found in power generation, marine propulsion, offshore, and oilfield environments.

Manufactured to OEM specifications, the 230-3255 injector features industrial-grade metallurgy that provides excellent wear resistance and a long service life under continuous heavy-duty operation. Improved fuel atomization supports complete combustion, contributing to lower fuel consumption and reduced particulate emissions with visibly cleaner exhaust. Precise fuel delivery enhances engine responsiveness and overall power output, while the injector's wide recognition as both an OEM and aftermarket replacement simplifies global procurement and inventory management for fleet operators and distributors.

This injector is interchangeable with multiple Caterpillar part numbers, including 10R-7228, 0R-3306, 234-3255, and 235-3255, making it a versatile solution for generator sets, mining trucks, heavy haul trucks, marine vessels, tugboats, offshore platforms, and oilfield machinery. Proper installation requires cleaning the injector bore, inspecting the seat condition, replacing sealing washers, lubricating O-rings with clean diesel fuel, and tightening according to Caterpillar specifications. Routine maintenance with clean fuel, regular filter replacement, and periodic injector balance testing will maintain reliable engine performance throughout the injector's operational life.