Caterpillar original Caterpillar 367-4293 replacement fuel injector for C9 engine diesel common rail new injector original new injector

The CAT C9.3 fuel injector 367-4293 is engineered as an original-type replacement component for Caterpillar C9.3 diesel engines operating in heavy equipment and industrial machinery. This common rail diesel fuel injector is designed to deliver the correct fuel quantity at the required injection timing, pressure, and spray pattern, supporting combustion efficiency, fuel economy, engine power output, exhaust smoke control, starting performance, idle stability, and overall emission performance. The injector meters, atomizes, and injects diesel fuel into the combustion chamber under high pressure to meet the demands of high-load continuous operation.

This injector assembly is fully compatible with CAT C9.3 engine applications across equipment models including the 336E, 336E H, 336E L, 336E LH, 336E LN, 568 FM LL, 966K, 972K, 12M2, 140M2, 160M2, D6T LGP, D6T XL, D7E, D7E LGP, and 627H. Coverage spans excavators, wheel loaders, motor graders, track-type tractors, forestry machines, and wheel tractor-scrapers deployed in construction, mining, quarry, road construction, forestry, agriculture, power generation, fleet maintenance, diesel engine rebuilding, parts distribution, and international aftermarket export trade. Cross references include 3674293, 20R-1318, 20R1318, CA3674293, and CA20R1318 for flexible part lookup.

Built to OEM standard specifications, the 367-4293 injector supports precision fuel delivery and is OE-number and replacement-number searchable for accurate fitment confirmation. Recommended maintenance practices include using clean diesel fuel, replacing the fuel filter on schedule, draining the water separator, keeping the fuel tank clean, monitoring diagnostic data, performing return-flow testing when symptoms appear, and using injector bench testing for accurate evaluation. Injectors should be stored with sealed ports, dry packaging, and protection against dust, moisture, and impact. Common fault symptoms such as hard starting, long cranking, rough idle, misfire, smoke, low power, high fuel consumption, leakage, knocking, high exhaust temperature, and excessive return fuel can be addressed through fuel pressure testing, cylinder cut-out testing, balance-rate monitoring, spray-pattern inspection, visual leakage inspection, cleaning the fuel system, replacing seals, recalibrating injector data, or replacing a single injector or full matched set as engine condition requires.