Sierra # 18-7275 â€“ Fuel Pump
AC style used on big block Chevy on Mercruiser.
For GM (V-8) 454
Replacement for Mercruiser Inboard/Outboard #86247, #8642T, OMC #50941
Flange ID #s 41422
Inlet @ 9 O''clock. Outlet @ 3 O''clock. Separator 7 O''clock.
Clock positions based on the outlet and inlet in relation to the rocker arm. Place the pump with the rocker arm in the 12 O''clock position - the rocker arm must be held behind the fuel pump body with the bottom of the pump body facing you.