OEM Quicksilver 857005A1 Fuel Pump Diaphragm Kit for Mercury and Mariner
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Description
Description
Replacement diaphragm kit 857005A1 is for select 30-65hp Mercury and Mariner 2-stroke outboards. See your owner's manual or service manual for specific application and installation instructions.
Application details
- Used to service selected mechanical fuel pumps; this is a repair kit, not a complete pump.
- Examples include 30 hp two-cylinder 644cc engines, serials 0G053314–0T800749, and Jet 30 engines, serials 0C159200–0T408999.
- Additional applications include selected larger two-stroke engines with the specified square fuel pump; identify pump design as well as engine serial number.
Manufacturer part number: 857005A1
Match the engine serial number and fuel-pump configuration before ordering. The applications above are selected catalog examples, not a universal horsepower fitment range.


