Perkins original Perkins original Perkins 433-6862 Fuel Injection Valve Replacement for C7.1 Engine Assembly 2950502400 320 323 326 Excavator Part new injector original new original new injector

Engineered as a direct OEM replacement, the Perkins fuel injector 4336862 / 295050-2400 is designed for Perkins C4.4, C4.2, and C7.1 diesel engines operating in demanding industrial environments. It serves as an authentic component for high pressure common rail fuel injection systems fitted to excavators, loaders, backhoes, compact equipment, mining service vehicles, mobile power units, agricultural machinery, standby and prime power generators, compressors, pumps, and hydraulic power packs. The injector carries authorized Perkins OE numbers 4336862 and 295050-2400, with universal cross references 433-6862 and 2950502400, ensuring accurate engine identification and straightforward part substitution across global heavy equipment fleets.

Manufactured to strict dimensional tolerances and assembled from heat-treated alloy steel, corrosion-resistant materials, and wear-resistant nozzle components, this common rail injector delivers precise fuel metering, superior atomization, and consistent injection quantity under high pressure operating conditions. Optimized combustion efficiency enhances engine power output while reducing fuel consumption, and stable fuel flow supports reliable cold starting, smooth idle quality, and balanced cylinder performance. The high-precision CNC machining process ensures repeatable spray pattern geometry and durable sealing surfaces, extending the injector's operating life in continuous-duty applications such as industrial generator sets, irrigation equipment, and harvesting machinery.

Before installation, inspect the fuel rail, fuel lines, injector bore, injector seat, and wiring harness for wear or contamination. Replace the sealing washer, clean the injector bore, tighten the injector to Perkins specifications, reconnect the fuel lines and electrical connector, perform a leak test, and complete ECU diagnostics. For long-term reliability, operators should use clean diesel fuel, replace fuel filters on schedule, drain water separators routinely, avoid contaminated fuel, and monitor engine fault codes. Common symptoms of a failing injector on Perkins C4.4 platforms include hard starting, black smoke, white smoke, power loss, excess fuel consumption, and rough idle, typically caused by nozzle wear, internal leakage, restricted flow, or incorrect injection timing.