Caterpillar original 11R-1582 Diesel Fuel Injector for Caterpillar C9 Engine, Replacement for OEM 20R-8063, 10R-2828, Common Rail Injector for Excavator 330D 336D, 20R-8060 original new injector

Built for Caterpillar C9 engine family platforms, the 11R-1582 high-pressure common rail diesel injector is a precision-engineered replacement component manufactured strictly to OEM specifications. Cross-referencing part numbers 326-1645 (3261645) and 10R-7260 (10R7260), it fits all C9 ACERT variants including industrial, generator, marine, construction, mining and power unit engines. Delivering accurate fuel metering and optimized atomization, it supports consistent engine function in heavy-duty conditions, making it ideal for fleet operators, parts distributors and maintenance providers.

Every 11R-1582 injector passes rigorous factory validation: flow testing, leakage testing, pressure testing and spray pattern calibration, to ensure stable performance and long service life. It features CNC-machined components, micron-level nozzle tolerances, wear-resistant heat-treated alloy steel and corrosion-resistant surfaces. These design choices support stable injection pressure, consistent spray patterns, improved fuel atomization, lower fuel consumption and emissions, faster engine response, better cold start performance, reduced combustion noise and extended engine lifespan.

This injector works with diverse Caterpillar equipment: excavators, wheel loaders, generator sets, mining machinery and marine propulsion systems across construction, mining, power generation and marine sectors. For best results, replace sealing washers, clean the injector bore before installation, use professional tools, verify fuel rail pressure post-fitting, and perform injector coding if required. Using ultra-clean diesel, replacing fuel filters regularly and draining water separators frequently further extends service life and cuts unplanned downtime.