original 573-4231 Diesel Common Rail Fuel Injector 5734231 577-7633 387-9435 217-2570 557-7634 for C9 Engine E330D E336D 340D Excavator Diesel Engine Parts original new injector

Engineered as a direct-fit solution for high-output C9 diesel platforms, the 573-4231 Fuel Injector delivers the precision atomization and pressure tolerance required by modern common rail systems. Manufactured to strict OEM specifications, this injector assembly is fully interchangeable with 20R-8846, 20R-8064, 20R-8069, 293-4072, 387-9432, 387-9435, 267-3360, 328-2574, 557-7637, 557-7634 and 11R-1582, ensuring broad compatibility for fleet operators and rebuild shops.

The injector operates within a high-pressure common rail fuel system, utilizing multi-hole nozzle technology to produce ultra-fine fuel atomization for faster, more complete combustion. This translates into improved torque delivery, enhanced throttle response, better fuel economy, and lower particulate emissions. High precision fuel metering guarantees exact fuel volume under varying engine loads, while corrosion-resistant internal components withstand the demanding conditions found in mining, marine, construction, and power generation environments. Reinforced construction and hardened sealing surfaces provide extended service life in continuous heavy-duty operation.

This fuel injector is suitable for C9, C9 ACERT, Industrial C9, Marine C9, and Generator Set C9 engine platforms, powering equipment such as 950H, 962H, 966H, 972H and 980H wheel loaders, excavators, generators, and industrial machinery. Supplied ready for installation with OEM-grade quality control, the 573-4231 injector is a reliable replacement choice for maintenance programs, engine overhauls, and aftermarket distribution channels serving heavy equipment markets worldwide.