Caterpillar original Caterpillar 293-4067 replacement fuel injector new injector original new injector

The CAT 293-4067 fuel injector is engineered for Caterpillar C9 and C9 ACERT diesel engines delivering 205–280 bkW (275–375 bhp) at 1800–2200 rpm. Designed as a common rail injector assembly, it provides precision fuel metering, fine atomization, and stable combustion support for demanding construction, mining, and industrial applications. Wear-resistant coated plungers and engine-specific calibration help protect modern low-sulfur, low-lubricity fuel systems, supporting fuel economy, long wear life, and consistent engine performance across the C9 platform. The injector is compatible with multiple cross references including 293-4067, 10R-4764, 387-9438, 328-2577, 245-3516, and 20R-8060, simplifying replacement sourcing.

Fitment covers CAT 324D, 325D, 326D, 329D, 330D, 330DL, 336D, and 336DL excavators, as well as other Caterpillar C9-powered heavy equipment, industrial diesel engines, and machinery used in construction, quarry, and infrastructure projects. The unit is available as new aftermarket, genuine, remanufactured, rebuilt, or exchange stock, giving distributors, rental fleets, rebuild centers, and workshops flexible supply options to match their service and pricing requirements.

Proper installation requires clean diesel fuel, a regularly serviced fuel filter, and a drained water separator. Installers should confirm the old injector number, engine serial, and machine model, replace all seals and O-rings, apply correct torque values, bleed the fuel system, and where required program the ECM with the correct injector trim code. After start-up, idle stability, smoke color, fuel leakage, abnormal knock, and diagnostic codes should be checked. Common injector symptoms such as hard starting, rough idle, black or white smoke, misfire, high fuel consumption, low power, and external leakage can be addressed through pressure testing, return flow testing, cylinder balance testing, resistance testing, ECM code scanning, spray pattern testing, and oil analysis.