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6.7L Power Stroke – Piezo Fuel Injectors


There are eight fuel injectors; four mounted on each cylinder head.
They are serviced without removing the valve covers. The Injector Quantity Adjustment (IQA) must be programmed into the PCM when a new injector is installed.
The injector is a 19 mm piezo-actuated injector with an 8 hole nozzle.
Each fuel injector is retained with a single clamp and bolt through the rocker cover to the cylinder head.
A stepped copper gasket is used to better distribute the sealing load between the cylinder head and injector. This allows heat to transfer from the injector nozzle to the cylinder head. The step is installed towards the cylinder head.