A Quill for a fuel injection pump is a component that plays a critical role in the fuel delivery system of an engine. It is a slender, cylindrical shaft or rod that connects the fuel injection pump to the engine's camshaft or drive mechanism. This ensures a secure and precise fit, enabling the transfer of motion from the pump to the quill.

Attributes:
• Ensure proper fuel atomization and delivery to the injectors.
• Resistant to the corrosive effects of the fuel being used.

Applications:
A Quill is used to pressurize the fuel to a specific level required for proper fuel atomization and injection into the engine's combustion chamber.