Caterpillar original Caterpillar 268-9577 Common Rail Injector 387-9428 387-9426 241-3239 for C7 C9 324D 325D 326D 329D new injector original new injector

Engineered for demanding industrial applications, this heavy-duty diesel fuel injector 268-9577 is a precision replacement component designed for the . C7 and . C7 ACERT inline 6-cylinder 7.2L turbocharged engine platform. Built to OEM dimensional standards, the assembly integrates micron-level nozzle machining, dynamic flow balancing, and high-pressure calibration testing to deliver stable atomization and consistent injection timing across the full 190-360 HP power range. Cross-referenced numbers include 10R-7675 and 328-2577.

The injector features heat-treated internal components, a wear-resistant needle valve, and corrosion-resistant materials engineered for extended service life under continuous-duty conditions. Every unit is 100% factory tested — including leak, flow, and pressure verification — ensuring reliable performance in prime power generators, standby gensets, surface mining support machinery, commercial marine engines, and industrial pumps and compressors. Key benefits include improved fuel economy, enhanced engine power output, reduced exhaust emissions, better cold-start behavior, and lower combustion noise.

Suitable equipment covers the . 320D and 323D Excavators, . Wheel Loaders, Motor Graders, Backhoe Loaders, Generator Sets, and Marine Workboats. For optimal installation, clean the injector bore, inspect the seat, renew sealing components, apply . service torque values, replace fuel filters, and bleed the fuel system. Recommended diagnostics include injector balance testing, cylinder cut-out testing, fuel pressure testing, ECM scanning, and leak-off analysis.