Caterpillar original Common Rail Diesel Fuel Injector 10R-7672, Cross Reference 10R-7671, Fits 320D C4.4 C6.6 Engines, Excavator Application, Replacement for OEM 320-0677 original new injector

Engineered to meet Caterpillar OEM fuel delivery specifications, the CAT 10R-7672 fuel injector is a high-precision diesel injection component designed for C6 Series engines. Supplied in brand-new condition and factory tested, this OEM-equivalent injector plays a critical role in fuel atomization, combustion efficiency, engine power output, fuel economy, and emission control. Manufactured with precision-machined alloy steel components and advanced nozzle calibration technology, it delivers consistent fuel metering performance throughout its service life.

The 10R-7672 (OE 10R7672) directly replaces part number 326-1641 and cross-references 10R-7656, simplifying sourcing for maintenance and repair programs. It is commonly installed in CAT C6, C6.4, and C6.6 diesel engines — turbocharged, water-cooled, direct-injection inline six-cylinder platforms — and is widely applied in crawler and hydraulic excavators, wheel loaders, backhoe loaders, industrial generators, standby and prime power systems, marine propulsion and auxiliary engines, mining machinery, oilfield equipment, and agricultural and forestry equipment.

Key advantages include precision fuel metering under varying load conditions, OEM-standard calibration, high-pressure injection capability, and a stable injection pattern that supports consistent combustion. Corrosion-resistant internal components protect against fuel contamination, while heavy-duty construction ensures long service life in demanding industrial environments. By optimizing atomization, the injector helps improve engine response, cold-start performance, torque generation, and overall fuel efficiency. Backed by a 12-month warranty, the CAT 10R-7672 is a dependable, cost-effective replacement solution for distributors, fleet operators, and equipment maintenance providers worldwide.