Perkins original Perkins 107-7773 Diesel Fuel Injector for 3116 Engine 320B 322B 325B Excavator Replacement for OEM new injector original new injector

The Perkins 3116 and 3114 mechanical diesel fuel injector, main OE number 107-7773, is engineered as an original type replacement component for heavy-duty diesel systems. Built with precision fuel metering and fine atomization capability, this injector delivers stable idle performance and strong load response across demanding operating conditions. Its heavy-duty construction supports reliable operation in excavators, wheel loaders, motor graders, backhoe loaders, scrapers, track loaders, asphalt pavers, compactors, generator sets, and selected truck applications powered by the Perkins 3116 and 3114 engine platforms.

This aftermarket replacement injector offers OEM-type fitment and high cross-reference compatibility, covering authorized OE numbers 107-7773, 107-7733, 107-7732, 0R-8682, 127-8216, CA1077773, CA1077733, CA0R8682, and CA1278216, along with universal numbers 1077773, 1077733, 1077732, 0R8682, and 1278216. The part helps restore engine power, reduce exhaust smoke, and improve fuel economy while simplifying distributor inventory through broad application coverage. It is designed to support long-term equipment operation in global aftermarket sales channels serving industrial, construction, and power generation sectors.

For proper service life, clean diesel fuel must be used, fuel filters replaced on schedule, and the water separator drained regularly. The fuel tank should remain free of sludge, rust, and water, and the injector must be stored in sealed dry packaging without contact to the nozzle tip. Operators should monitor engine oil for fuel dilution, observe exhaust smoke quality, and conduct load testing after installation. When multiple injectors show uneven output or wear, replacing the full set is recommended to maintain balanced engine performance.