Sierra 18-3721 Stainless Steel Locknut Replaces 11-34933

Sierra 18-3721 Stainless Steel Locknut Replaces 11-34933

Sierra 18-3721 Stainless Steel Locknut Replaces 11-34933
SKU:
SIE-18-3721
$19.49
$14.99
$4.50
Availability:
In Stock - Ships Today
Ships next business day if ordered in the next:

Frequently Bought Together

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
    • 11-134391
    • 11-22178
    • 11-34933
    • 11-46355
    • 11-82671015
    • 11-859116
    • 11-95702

California Residents: warning sign WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov

Other Details

Google Product Type:
Engine Parts
Product MPN:
18-3721
Product UPC:
808282258856

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