Perkins original 20R-0758 Fuel Injector for 3408E 3412 3412E 3126 Engine, Replacement for OEM Diesel Common Rail Marine Engine  original new injector

The Perkins 3412 Series Fuel Injector 20R-0758, carrying the primary OE designation 311-3412, is engineered as a direct-fit replacement for Perkins 3412C and 3412D industrial diesel engines. It also serves the Perkins 3412E platform used in industrial pump applications, making it a versatile solution across construction, mining, power generation, marine, and manufacturing sectors. Cross-reference numbers 20R0758, 3412-20R, and Perkins 20R-758 ensure broad compatibility with existing inventory systems and aftermarket part databases.

This injector features a multi-hole atomization spray pattern optimized for direct injection systems, delivering a consistent flow rate of 180–210 mm³/stroke at pressures reaching 2500 bar. Constructed from high-grade alloy steel with an anti-corrosion coating, it withstands operating temperatures from -40°C to 250°C, ensuring reliable performance in demanding industrial environments. Its compatibility with both OEM and aftermarket components facilitates easy integration with heavy machinery and power generation engines.

For maintenance, fuel lines and connectors should be inspected every 250 hours, with full servicing intervals at 500 hours or as specified in the engine manual. Annual ultrasonic cleaning is recommended to preserve spray pattern integrity. Installation torque should be set between 40–45 Nm, with injector nozzle protrusion maintained at 0.5–1.0 mm. Performance verification can be conducted via flow bench testing, and the unit is compatible with Perkins diagnostic tools reporting error codes P0200–P0208. Backed by a 12-month or 1000-hour warranty.