original 293-4072 Fuel Injector 235-5261 328-2573 328-2574 553-2592 557-7633 20R-8968 20R-1917 Diesel Engine new injector original new injector

The 293-4072 / 2934072 Injector GP-Fuel is engineered as a direct-fit original type replacement specifically calibrated for the C9 diesel engine platform, covering the C9 truck engine, C9 industrial engine, C9 petroleum engine, and C9 machine engine variants within the CX31-C9I industrial engine system. Precision-machined internal components and OE-spec nozzle geometry ensure accurate fuel metering, fine atomization, and stable injection pressure across demanding duty cycles in construction, mining, forestry, petroleum, equipment rental, fleet maintenance, and engine rebuilding operations. The injector is fully interchangeable with cross numbers 10R-7222, 387-9433, 267-3360, 328-2574, 553-2592, 557-7633, and additional reference codes listed in the cross-reference table, simplifying sourcing for distributors and service shops.

This injector supports a wide range of -powered machines, including excavators 330D, 330D L, 330D LN, 330D MH, 330D FM, 336D, 336D L, and M330D; wheel scrapers 627G, 637D, 637E, and 637G; motor graders 140M and 160M; track loader 973C; soil and landfill compactors 815F II, 816F II, and 814F II; track feller bunchers 521, 522, 532, 541, 551, and 552; along with wheel dozers 2390 and 2391. Each unit is supplied with export-grade packaging and is available in full set supply options, making it suitable for wholesale distribution, aftermarket service networks, and large fleet overhauls requiring consistent OE-level performance.

Proper maintenance extends injector service life in C9 applications. Operators should use clean diesel fuel, replace fuel filters at scheduled intervals, drain the water separator regularly, and keep the fuel tank free of contamination. During routine service, technicians are advised to monitor exhaust smoke, check for fuel dilution in engine oil, scan for diagnostic fault codes, and perform injector leak-off, cylinder cut-out, balance, spray pattern, and fuel pressure testing when symptoms such as hard starting, rough idle, power loss, misfire, or excessive exhaust temperature appear. Spare injectors should be stored in sealed, dry, anti-corrosion packaging to preserve nozzle integrity until installation.