Sierra 18-3721 Stainless Steel Locknut Replaces 11-34933 - MW
Express
Toronto, ON
Vancouver, BC
NJ, Warehouse
FL, Warehouse
"Express" items are automated and typically shipped out the next available business day and delivered within 4 days.
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Sierra 18-3721 Stainless Steel Locking Nut
Sierra replacement stainless steel locking nut for Mercury and Mercruiser Stern Drives. Sierra replacement engine parts are manufactured to meet or exceed OEM requirements.
- Thread Size: 7/16" - 20
- Material: Stainless steel w/ nylon insert
- For MR/Alpha Drives
- For MCM inner transom studs and prop nut for Mercury 39, 60 (1968 & Newer, 8 spline)
Interchangeable with:
- GLM
- 21170
- Mallory
- 9-72004
- 9-72004-10
- Mercruiser Stern Drive
- 11-21298
- 11-22178
- 11-24648
- 11-29241
- 11-33962
- 11-34933
- 11-82671015
- Mercury Marine
WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov
