QUICKSILVER
Gear Lube Pump Adapter Quicksilver Mercury Mariner 3/8" -16 UNC to 8x1.25 metric
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Genuine Quicksilver 8mm Adaptor
Part number: 91-883704Q03
Genuine Quicksilver part for Mercury/Mariner outboard engines.
The adaptor converts the 3/8" thread on gear lube pumps to fit 8mm gear housings.