Caterpillar original For Caterpillar C3500B Diesel Engine Fuel Injector 11R-0283 20R-0850 for D11R D11N Mining Tractors, Replacement for OEM, Cross Reference 20R-1274, 20R-0849 original new injector

The CAT 11R-0283 is a precision-engineered electronic unit injector purpose-built as a direct-fit component for Caterpillar 3512B diesel engine platforms within the 3500 Series. Manufactured to strict OEM-standard specifications, it delivers highly pressurized diesel fuel directly into combustion chambers at ECM-controlled timing intervals, enabling fine fuel atomization, optimized combustion efficiency, lower fuel consumption, and consistent engine performance even under sustained heavy-load operating conditions.

This heavy-duty industrial-grade injection component is validated for deployment across diverse high-demand commercial sectors, with confirmed applications in generator sets, marine propulsion systems, offshore platforms, mining equipment, oilfield power systems, industrial manufacturing plants, construction machinery, and railway diesel power systems. Its corrosion-resistant, high-temperature durable construction supports long service life, stable emissions performance, and reduced risk of unplanned engine downtime for fleet operators.

Available in both new and remanufactured conditions to align with varied operational requirements, the 11R-0283 comes with a 12-month warranty and is shipped in industrial export packaging suitable for global B2B supply chains. It matches OEM fit and function requirements, supports official Caterpillar installation, electronic calibration and scheduled maintenance workflows, and delivers reliable, cost-effective fuel system performance for 3512B engine fleets.