18-3721-9 Stainless Steel Locknut (Priced Per Pkg of 5)

$34.00
RRP $42.00
SAVE $8.00 (19%)
In Stock (20 ) - Dispatches in 3 days


Calculate Shipping

Sierra Stainless Steel Locknut-  18-3721-9

Material: Stainless Steel w/ nylon insert
Thread Size: 7/16" or 11.1mm - 20
For: MCM inner transom studs and prop nut for Mercury 39, 60 (1968 & newer, 8 spline)
For: MR/Alpha

Interchangeable with the following:

GLM

21170

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
11-8M0204653
11-95702

(A-S-18-3721)

SKU A-S-18-3721
Model # 18-3721-9
Brand Sierra
Shipping Weight 0.0700kg
Shipping Width 0.100m
Shipping Height 0.126m
Shipping Length 0.017m

More From This Category


MP39060-1 Ignition Switch - 3 Position Conventional
18% OFF RRP $99.00
18-7903 Oil Filter

18-7903 Oil Filter

$23.00

18% OFF RRP $28.00
18-2764 Exhaust Bellows

18-2764 Exhaust Bellows

$74.00

18% OFF RRP $90.00
18-5808 Solenoid

18-5808 Solenoid

$61.00

19% OFF RRP $75.00
18-74527 Gear Housing Seal Kit

18-74527 Gear Housing Seal Kit

$119.00

18% OFF RRP $146.00
18-8015S-1 Fuel Line Assembly - Universal - Non EPA
18% OFF RRP $92.00
Yamaha Oil Filter 5GH-13440-60

Yamaha Oil Filter 5GH-13440-60

Now  $12.00

On Sale 40% OFF RRP $19.90
18-1218 Exhaust Inner Cover Gasket
17% OFF RRP $18.00