Caterpillar original Common Rail Diesel Fuel Injector 6I-3075 for Excavator Construction Machinery, 0R8680, 4P-9077, 10R-3053, fits 3500A Engines for Equipment Replacement Parts original new injector

The Caterpillar (CAT) 6I-3075 diesel fuel injector assembly is a precision-calibrated, OEM-equivalent component engineered for CAT 3500 Series heavy-duty diesel engines, with a primary fit for the 3512A platform and confirmed compatibility with 3512 and 3516 engine variants. Manufactured to match original equipment performance specifications, it delivers precisely metered fuel, optimized atomization, and stable combustion to support rated power output, improved fuel economy, lower emissions, and reliable long-term operation under heavy-duty conditions.

This brand-new injector is validated for use across a wide range of industrial equipment, including CAT generator sets, marine propulsion systems, mining trucks and power systems, oilfield power units, industrial pump stations, offshore emergency power systems, and heavy construction equipment. It carries a full suite of cross-reference part numbers covering OEM, remanufactured, government stock, and supply chain identifiers, enabling seamless lookup in global MRO and industrial parts procurement databases to simplify sourcing workflows.

Built with industrial-grade materials and precision-machined components, the 6I-3075 features corrosion-resistant construction, a leak-resistant sealing system, high-pressure diesel compatibility, and consistent cylinder-to-cylinder flow balance to extend service life and reduce maintenance costs. It supports standard Caterpillar-specified installation and maintenance procedures, and delivers consistent performance when used with clean diesel fuel and regularly replaced filtration components.