Caterpillar original Common Rail Diesel Injector 0R-2921 for Caterpillar 3508 3512 Engine, Replacement for OEM 4P9076, Cross Reference 4P-9077, Excavator Spare Parts for 7E-3382 original new injector

For operators of Caterpillar 3500 Series diesel engines working across high-demand industrial sectors, the CAT 0R-2921 fuel injector delivers OEM-grade fuel delivery performance tailored to harsh operating conditions. This new high-pressure direct injection injector is engineered as a direct fit for CAT 3512A, 3512B, 3516, 3516B, 3508 and 3508B engine platforms, with cross-reference compatibility with part numbers 326-4705, 3264705, 326-4706, 3264706, 326-4707 and 3264707. It meets OEM equivalent quality standards and ships in industrial export-grade packaging for global B2B supply chains.

Precision-built to strict OEM dimensional and performance specifications, the 0R-2921 features heavy-duty high-strength alloy steel construction, multi-hole precision nozzle technology, advanced anti-corrosion treatment and specialized hardened wear-resistant internal components. Its high-pressure operating capability delivers consistent injection pressure and optimal fuel atomization, improving combustion efficiency, reducing fuel consumption and exhaust emissions, boosting horsepower output, enhancing cold-start performance, and extending engine service life by cutting harmful deposit buildup.

Validated for power generation, marine propulsion, mining, oil & gas, heavy construction and industrial pumping applications, the injector supports standardized scheduled maintenance ranging from daily leakage and abnormal smoke checks to 5000-hour full overhauls. It follows a formal 8-step installation protocol to ensure proper fitment, and comes with a 12-month warranty for reliable, long-term performance in demanding global operating environments.