Caterpillar original Common Rail Diesel Injector Cross Reference 367-4293, 20R-5073, 363-0493 Fuel Injector 20R-1318 Replacement for OEM C9.3 Engine Excavator Parts for 336E 972K original new injector

For global B2B procurement teams, fleet operators, diesel repair centers and equipment maintenance workshops, the CAT C9.3 Fuel Injector 20R-1318 is a purpose-built industrial-grade common rail diesel injector for Caterpillar C9.3 engine platforms. Classified as an INJ GP FUEL component, it supports the high-pressure fuel delivery needs of heavy-duty Caterpillar machinery, with confirmed fitment for 336E, 336E L and 336E LN excavator lines. Genuine CAT reman variants deliver same-as-new performance and reliability at lower cost, while reducing environmental impact via Caterpillar’s formal remanufacturing program.

Public aftermarket and supplier databases link 20R-1318 (also searched as 20R1318) to a broad set of cross-reference numbers for C9.3 applications. Common associated numbers include 304-3637, 382-0709, 392-9046, 456-3509, 456-3589 and 324-5467, with additional related and extended numbers covering 367-4293, 363-0493, 456-3493, 456-3544, 20R-5036, 20R-5079, 460-8213, 342-5487 and 417-3013. Cross-reference mappings vary by engine serial number, machine configuration, injector trim, regional catalog and reman program, so listed numbers alone do not guarantee fitment.

Aligned with C9.3 engine use cases, the injector supports demanding heavy-duty construction, excavation, industrial and power-related operating conditions. Depending on supplier inventory, it may be offered as new aftermarket, OEM-equivalent, remanufactured, rebuilt or tested replacement to suit different budget and maintenance needs. Buyers must confirm compatibility via engine serial number, original injector tag, old part number and fuel system configuration before ordering.