Perkins original Perkins 20R-4148 Diesel Engine Common Rail Fuel Injector Assembly for 3412 Construction Machinery  original new injector

The Perkins 20R-4148 fuel injector is engineered specifically for the Perkins 3412 engine family, delivering reliable high-pressure fuel delivery across 3412B, 3412C, and 3412E configurations. Built to original equipment standards under OE 8N-4148, this injector supports both mechanical and electronic governor platforms, making it suitable for power generation sets, marine propulsion units, mining machinery, and heavy construction equipment operating in demanding industrial environments.

Featuring a high-pressure timed injection design with solenoid and mechanical valve activation, the 20R-4148 ensures precise fuel metering and consistent atomization for every combustion cycle. With high pressure tolerance of ≥1800 bar and proven thermal stability under both idle and full-load conditions, the injector maintains stable spray patterns and efficient atomization even in extreme operating temperatures, supporting complete combustion and reduced exhaust residue across all 3412 series applications.

This part is available in original OEM, remanufactured, and aftermarket replacement configurations, with cross-references including 10R-4148, 7N-4148, and 182-6367. For optimal service life, operators should inspect for fuel leaks every 250 hours, verify spray pattern with diagnostic tools, replace high-pressure lines every 1000+ hours, and use clean diesel with correct filtration. Each unit is packaged to protect precision components during global shipping and storage.