Perkins original 557-7627 Fuel Injector Assembly Replacement for OEM Engine C7 C9 Excavator 328DLCR 329DLN 324DLN E330D E336D E325D E329D  original new injector

The Perkins C7 C9 Fuel Injector 557-7627 is engineered as a direct OE-style replacement for Perkins C7, C7 ACERT, C9, and C9.3 diesel engines widely installed in excavators, wheel loaders, motor graders, material handlers, wheel skidders, asphalt pavers, and various industrial, petroleum, and mobile hydraulic power unit applications. Compatible cross references include 20R-9079, 387-9427, 10R-7225, 20R-8066, 268-1835, 295-1411, 328-3585, 713431AT, CA5577627, and CA3879427, covering the 324D, 325D, 326D, 328D, 329D, 950H, 962H, 12K, 140K, 160K, and related equipment series.

This heavy-duty common rail injector delivers precision fuel metering, stable injection pressure, fine atomization, and consistent combustion efficiency, helping restore engine power output, throttle response, fuel economy, idle quality, and overall reliability under demanding jobsite conditions. Its robust internal construction resists thermal stress and high-cycle wear, supporting long service life in construction, mining, and heavy-equipment fleet operations.

Proper maintenance—clean diesel fuel, timely fuel filter and water separator service, sealed storage, and periodic diagnostic scanning, return-flow testing, and nozzle spray testing—prevents premature failure caused by fuel system contamination. The unit is commonly supplied to construction-equipment repair shops, fleet maintenance companies, diesel-parts distributors, mining-equipment operators, and global parts exporters seeking a dependable Perkins injector solution.