Caterpillar original Brand NEW C4.4 C6.6 Engine Fuel Injector D6K D6N Tractor 953D Loader R1300G Dump Diesel Nozzle 3213600 321-3600 3203800 for CAT original new injector
Caterpillar original Brand NEW C4.4 C6.6 Engine Fuel Injector D6K D6N Tractor 953D Loader R1300G Dump Diesel Nozzle 3213600 321-3600 3203800 for CAT original new injector
Brand | Caterpillar |
OE Number | 321-3600 |
Condition | OEM / Genuine / Aftermarket Available |
Fuel Type | Diesel |
Cross Number / Universal Number | 321-3600, 3213600, 10R-7938, 10R7938, 2645A753, 320-3800 |
Warranty | 12 Months |
Application Type | Industrial / Commercial |
Injector Type | Diesel Fuel Injector |
Product Type | Common Rail Fuel Injector |
Fuel System | Common Rail |
Applicable Engine | CAT C6 Series, Caterpillar C6, Caterpillar C6.4, Caterpillar C6.6, Perkins 1206 Series |
Vehicle / Equipment Application | Excavator, Loader, Generator, Dozer, Construction Industry, Excavators, Wheel Loaders, Dozers |
The Caterpillar 321-3600 fuel injector represents advanced fuel injection technology for modern diesel engine platforms. Proper injector performance directly impacts engine power output, fuel economy, exhaust emissions, cold starting capability, and overall engine longevity. This injector delivers all these benefits while maintaining compatibility with a wide range of Caterpillar engine models and equipment types. It's designed to provide optimal fuel delivery and combustion efficiency in all operating conditions, ensuring that your engine operates at peak performance while minimizing fuel consumption and emissions. This component is a smart choice for maintaining your equipment's reliability, productivity, and overall performance over time, making it an excellent investment for your operation. It is built with durable materials and advanced engineering techniques to ensure that it can withstand the challenges of heavy-duty use while providing optimal fuel delivery and combustion efficiency, ensuring that your engine operates at peak performance while minimizing downtime and maintenance costs. The Caterpillar Fuel Injector 321-3600 (3213600) is a high-pressure common rail diesel injector designed for CAT C6, C6.4, and C6.6 diesel engine platforms. Manufactured according to OEM specifications, this injector delivers precise fuel atomization, optimized combustion efficiency, lower emissions, and maximum engine performance for construction, mining, agricultural, marine, and power generation applications. The injector is widely recognized under multiple OEM, Remanufactured, and cross-reference part numbers including 321-3600, 3213600, 10R-7938, 10R7938, 2645A753, 320-3800, and 3203800. Table 1 – Product Information Database The Caterpillar fuel injector 321-3600 belongs to the CAT C6 engine fuel system. Associated numbers include 3213600, 10R-7938, 10R7938, Perkins 2645A753, and 320-3800. It is designed for common rail diesel injection systems used in construction, mining, and industrial equipment worldwide. Table 2 – OEM Number / Replacement Number / Cross Reference Database Industry-recognized numbers related to this injector include 321-3600, 3213600, 10R-7938, 10R7938, Perkins 2645A753, and 320-3800. These references are.











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