Welcome to Defender Canada! 
Seals, Gaskets & Plugs
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Sierra Mercruiser Transom Seal Kit - 18-8219
$385.05 -
9% offSierra Mercruiser Exhaust Elbow Gaskets (2-Pack) - 18-2849-9-1
$30.19$27.23 -
Sierra Fuel Sender Gasket 5-Hole Unit - 64082
$9.41 -
Sierra Mercury/Yamaha Plenum Gasket Set - 18-0663
$66.85 -
9% offSierra Mercruiser Exhaust Elbow Gaskets (2-Pack) - 18-0672-9
$35.83$32.31 -
Sierra Mercruiser Closed Dry Joint Riser Gasket - 18-0720
$67.56 -
9% offSierra Mercruiser Valve Cover Gasket - 18-0685
$52.75$47.54 -
Sierra Mercruiser Oil Pan Gasket - 18-1237
$60.88 -
Sierra Volvo/Penta Exhaust Manifold Gaskets (2-Pack) - 18-2902-1-9
$32.73 -
Sierra GM V6 Exhaust Manifold Gaskets (2-Pack) - 18-2909-9
$26.29 -
9% offSierra OMC Exhaust Manifold Gasket (2-Pack) - 18-2949-9
$34.42$31.04 -
Sierra Mercruiser Transom Seal Kit - 18-8206-1
$334.15 -
Sierra Mercruiser Transom Seal Kit - 18-8213
$276.56 -
Sierra Mercruiser Transom Seal Kit - 18-8217
$339.50 -
Sierra Mercruiser Transom Seal Kit - 18-8218
$342.19 -
9% offSierra Mercury Lower Unit Seal Kit - 18-8382
$47.11$42.46 -
Sierra Dual Water Pickup Seal - 18-9895
$52.82 -
9% offSierra Yamaha Powerhead Gasket Set - 18-99176
$317.83$286.11 -
9% offSierra Mercruiser Oil Pan Gasket Set - 18-0348
$47.11$42.46 -
9% offSierra Mercury Powerhead Base Gasket - 18-0378
$61.21$55.15 -
Sierra Mercruiser Intake Gasket Set - 18-0403
$117.12 -
Sierra Mercruiser Intake Gasket Set - 18-0404
$110.56 -
Sierra Mercruiser Oil Pan Gasket Set - 18-0405
$66.87 -
Sierra Mercruiser Intake Gasket Set - 18-0487
$115.78 -
Sierra Johnson/Evinrude Head Gasket - 18-0492
$72.49 -
Sierra OMC One Piece Rear Main Oil Seal - 18-0519
$43.45 -
Sierra Chrysler Intake Manifold Gasket Set - 18-0607
$75.60 -
Sierra Johnson/Evinrude Base Gasket - 18-0692
$37.24 -
Sierra Johnson/Evinrude Intake Gasket - 18-0693
$38.65 -
Sierra Mercruiser Open Dry Joint Riser Gasket - 18-0721
$78.28 -
Sierra Mercruiser Restricted Dry Joint Riser Gasket - 18-0722
$74.26 -
Sierra Johnson/Evinrude Base Adapter to Powerhead Gasket - 18-0965
$34.42 -
Sierra Mercruiser Vortec Head Gasket Set - 18-1254
$237.68 -
Sierra Yamaha Trim Seal - 18-2082
$23.38 -
Sierra Velvet Drive Transmission Overhaul Kit - 18-2591
$524.36 -
Sierra Mercury Block Cover Gasket - 18-2810-9
$35.41 -
Sierra Chrysler Head Gasket - 18-3878
$55.50 -
Sierra Mercury Powerhead Gasket Set - 18-4359
$208.23 -
Sierra Mercruiser Exhaust Manifold Gasket - 18-4367
$40.77 -
Sierra Mercruiser Gasket Overhaul Set - 18-4384
$196.15 -
9% offSierra Mercruiser Gasket Overhaul Set - 18-4387
$608.29$547.52 -
Sierra Mercruiser Head Gasket Set - 18-4388
$492.20 -
Sierra V8 Small Block Freeze Plug Kit - 18-56481
$67.56 -
Sierra Mercury Powerhead Gasket Set - 18-64217
$250.15