Caterpillar original  293-4573 10R2828 Diesel Fuel Injector for C7 Engine 324D 325D 330D 336D Excavator Replacement for OEM original new injector

Engineered for demanding diesel service, the 293-4573 fuel injector is a heavy-duty injection component intended for C7 and selected C9 diesel engine platforms. It delivers precision fuel metering and fine atomization to support stable idle, strong power recovery, cleaner combustion, and reduced smoke emissions. With multiple cross-reference numbers including CA2934573, 10R-4763, 20R-8059, 20R-8057, 243-4503, 295-1411, 268-9577, and 20R-8071, this injector simplifies inventory management for repair shops, distributors, and fleet operators who service mixed engine fleets.

This injector is suitable for diesel-powered excavators, wheel loaders, bulldozers, on-highway trucks, buses, generator sets, marine auxiliary engines, agricultural machinery, mining equipment, and stationary industrial power units when the engine configuration matches the injector number. Buyers should confirm the original injector number, engine serial number, machine serial number, and engine arrangement number before ordering. Typical symptoms indicating injector replacement include hard starting, rough idle, black or white smoke, power loss, high fuel consumption, engine knock, misfire, excessive return fuel, and active ECM fault codes.

To ensure long service life, use clean diesel fuel, replace fuel filters on schedule, drain the water separator, and maintain engine oil quality. During installation, verify part numbers, keep the injector bore and sealing surfaces clean, replace O-rings when required, and follow official service manual torque specifications for reliable heavy-duty performance.