Perkins original  250-1306 Fuel Injector 2501306 3920206 20R-1270 386-1758 10R-1288 for 3512B 3516B Excavator Spare Parts original new injector

The Perkins 3512B fuel injector carries the primary OE designation 250-1306 and is fully cross-referenced with 326-1643, 3261643, 10R-7222, 10R7222, 317-7630, 3177630, 341-9876, and 3419876, allowing direct substitution across the Perkins 3512B, 3512C, 3516B, 3508, 3508B, 3516, and 3516C diesel engine platforms. Each unit is engineered to OEM equivalent quality through high-precision CNC machining, hardened alloy steel construction, and strict OEM-level calibration, delivering consistent injection pressure, accurate spray atomization, and stable fuel delivery under continuous-duty operation. Authorized cross numbers, including CAT2501306, CAT3261643, CAT10R7222, and CAT3177630, ensure seamless interchangeability for procurement, inventory standardization, and aftermarket replacement requirements.

Designed for heavy-duty industrial, marine, generator set, oil and gas, mining, and construction environments, this injector assembly supports optimized combustion efficiency, reduced fuel consumption, lower exhaust emissions, and extended service intervals. Pre-installation verification of the part number, cleaning of the injector bore, inspection of fuel lines, replacement of sealing washers, and adherence to OEM torque specifications are recommended to maintain injection accuracy and prevent contamination-related failure.

All Perkins 3512B, 3512C, 3516B, 3508, 3508B, 3516, and 3516C injectors carrying OE 250-1306 with cross reference 326-1643, 10R-7222, 317-7630, and 341-9876 are supplied brand new and backed by a 12-month warranty. Common field symptoms such as hard starting, black or white smoke, rough idle, and excessive fuel consumption can often be traced to nozzle wear, calibration drift, or fuel contamination, making timely replacement with a calibrated OEM-specification injector the most effective corrective measure for reliable engine performance.