This cap is intended for DZ175 pump units and is catalogued as YSF8062 by YS Engine. It functions as a substitution for an old or damaged pump housing cap, restoring the sealed chamber.
To install: gain access to the pump housing, remove the worn cap, inspect mating faces and sealing components, install the replacement cap onto the DZ175 pump, and verify no leaks under static fill and while running. Use correct thread engagement and avoid excessive torque to protect thread integrity.
The cap completes the pump chamber and contributes to steady fuel supply. As a spare, it is meant to restore correct operation rather than change performance, ensuring predictable pumping during tests and normal operation.
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