OEM Quicksilver Welch Plug for MerCruiser R/MR Alpha One – 42682
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Description
Description
Quicksilver 42682: Welch Plug for MerCruiser.
- Replacement Welch plug for the specified driveshaft housing.
- Listed in the MerCruiser driveshaft-housing components catalog.
- Confirm the plug location and part number against the exact drive diagram.
Verified drive application
The MerCruiser R/MR Alpha One catalog for serial numbers 6216687 through 0F386995 lists 42682 at reference 4 in the driveshaft-housing and drive-gears diagram. The same reference also lists the smaller 32652 plug. Match the original part number and housing opening; these are different plugs.

