Caterpillar original Common Rail Fuel Injector for CAT 3508B 3512B 3516C, Fuel Injector 437-7547, Cross Reference 20R-2296, Replacement for OEM, Fits Machinery Diesel Engine original new injector
Product Details
Caterpillar Common Rail Fuel Injector
,CAT 3508B 3512B 3516C Injector
,OEM Replacement 437-7547 20R-2296
Caterpillar original Common Rail Fuel Injector for CAT 3508B 3512B 3516C, Fuel Injector 437-7547, Cross Reference 20R-2296, Replacement for OEM, Fits Machinery Diesel Engine original new injector
Fuel Type | Diesel |
Condition | New / Remanufactured (Reman) |
Applicable Engine | CAT 3508B V8 38.0L; CAT 3512B V12 51.8L (Standard, Marine, Industrial); CAT 3516B V16 69L; CAT 3516C V16 78L |
Injector Type | Direct Injection Diesel Injector Assembly with Multi-hole Nozzle |
Quality Standard | OEM-Certified, OEM Specification Compliant |
Packaging | N/A |
Fuel System | N/A |
OE Number | 437-7547, 4377547 |
Brand | CAT (Caterpillar) |
Cross Number / Universal Number | 20R-2296 (CAT Reman), 20R2296 (Reman Format); CAT4377547, CAT20R2296 (Supplier Cross Reference); 4377547R, 20R2296R (Reman/Assembly Reference); 437-7547 ASSY, 4377547-INJ (Assembly Reference) |
Vehicle / Equipment Application | CAT 793C, 793D, 785C, 785D Mining Trucks; CAT 3500 Series Generators; Marine Propulsion Engines; Offshore Power Units; Oil & Gas Systems; Construction Equipment; Mining Haul Trucks; Marine Auxiliary Generators |
Application Type | Mining, Construction, Marine Propulsion, Industrial Power Generation, Oil & Gas Operation, Offshore Power Supply |
The CAT 437-7547 direct injection diesel injector is an industrial-grade, high-precision fuel system component purpose-engineered for Caterpillar 3500 Series heavy-duty engines. It is calibrated to deliver accurate fuel injection and fine atomization, supporting maximum fuel efficiency, minimized exhaust emissions, and stable output under sustained heavy industrial loads. The component matches OEM performance specifications, making it a reliable replacement option for engine maintenance and overhaul programs.
Constructed from high-strength steel alloys with precision-machined multi-hole nozzle tips, hardened internal parts and OEM-standard seals, the injector supports a maximum injection pressure of 2200 bar and operates reliably across temperatures ranging from -40°C to +120°C. Its optimized spray pattern improves fuel-air mixing and combustion completeness, with a rated service lifespan of 8,000 to 10,000 hours under standard operating conditions.
This injector is compatible with a wide range of CAT engines and equipment across mining, construction, marine propulsion, industrial power generation and oil & gas sectors, including 793C/793D mining trucks, marine propulsion units and stationary generator sets. It is available in new and remanufactured conditions, comes with a 12-month global warranty, and helps B2B operators reduce unplanned downtime and long-term operational costs.
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