Caterpillar original 320-0688 Common Rail Fuel Injector for CAT D6N C6.6 Engine 10R-7939, Excavator Spare Parts, Heavy Duty Accessories original new injector
Caterpillar original 320-0688 Common Rail Fuel Injector for CAT D6N C6.6 Engine 10R-7939, Excavator Spare Parts, Heavy Duty Accessories original new injector
Warranty | 12 Months |
Cross Number / Universal Number | 10R-7939, 10R7939, 320-0688, 3200688, 321-1080, 3211080 |
Applicable Engine | CAT C6 Series, CAT C6.4, CAT C6.6, CAT C6.4 ACERT, CAT C6.6 ACERT, Perkins 1106D-E66TA |
Fuel Type | Diesel |
Condition | New / OEM Equivalent |
Product Type | Fuel Injector |
Material | Hardened Alloy Steel |
Application Type | Industrial / Commercial |
Brand | Caterpillar |
Operating Pressure | Up to 1800-2000 Bar |
Vehicle / Equipment Application | Construction, Mining, Industrial, Construction Industry, Excavators, Bulldozers, Wheel Loaders, Backhoe Loaders |
OE Number | 10R-7939 |
Built for durability and consistent performance, the Caterpillar 10R-7939 injector is ideal for heavy-duty applications. The Caterpillar 10R-7939 injector represents an ideal replacement solution for OEM maintenance programs, engine overhaul projects, fleet service operations, and aftermarket diesel engine repair requirements worldwide. It offers a cost-effective solution without compromising on quality, performance, or reliability. This injector is designed to keep your equipment running smoothly and efficiently day after day, minimizing downtime and maximizing productivity. It's built with robust materials and precision engineering to ensure long service life and dependable operation in even the most demanding industrial environments, making it an excellent choice for your diesel engine maintenance and replacement needs. This component is an excellent investment in maintaining your equipment's performance and productivity over time, ensuring that your machinery operates at its best day after day while minimizing downtime and maximizing your operation's efficiency and profitability. The Caterpillar Fuel Injector 10R-7939 is a high-performance common rail diesel injector engineered for CAT C6.4 and C6.6 engine platforms. Manufactured according to OEM specifications, this injector delivers precise fuel atomization, optimized combustion efficiency, reduced emissions, improved fuel economy, and enhanced engine power output. Widely used in Caterpillar construction equipment, industrial power units, generator sets, mining machinery, and Perkins-powered applications, the 10R-7939 injector has become one of the most demanded fuel system components in the global diesel engine aftermarket. Designed for extreme-duty operating environments, this injector supports high-pressure common rail fuel systems and is suitable for OEM replacement, remanufactured engine rebuilds, fleet maintenance programs, and international spare parts distribution. Product Name: Fuel Injector. OEM Number: 10R-7939. Injector Type: Common Rail Injector. Fuel Type: Diesel. Compatible with CAT C6.4 and C6.6 engines. Manufactured from hardened alloy steel with precision multi-hole nozzle technology. Operating pressure up to 2000 bar. Suitable for construction, mining, generator, agricultural and industrial.











Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.

