Sierra / Seastar Solutions

Sierra marine parts offer OEM-quality components for engines, fuel systems, and steering setups. Known for precision engineering and compatibility, Sierra products help maintain and upgrade your boat with confidence. Explore filters, cables, and replacement kits built for marine use.

Filters

O-Ring - OMC 305739, 18-7101 Sierra
O-Ring - OMC 305739, 18-7101 Sierra
$12.40
O-Ring - OMC 909048
O-Ring - OMC 909048
$14.48
O-Ring - OMC 326849
O-Ring - OMC 326849
$17.27
Oil Seal - OMC 321480, 18-2028 Sierra
Oil Seal - OMC 321480, 18-2028 Sierra
$21.81
Oil Seal - OMC 318972, 18-2025 Sierra
Oil Seal - OMC 318972, 18-2025 Sierra
$13.40
Oil Seal - OMC 302564, 18-2021 Sierra
Oil Seal - OMC 302564, 18-2021 Sierra
$15.43
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Sierra Exhaust Manifold Mounting Kit, 18-8502
Sierra Exhaust Manifold Mounting Kit, 18-8502
$64.64 $68.04
Engine Overhaul Gasket Set - Sterndrive / Cobra - 18-4374
Engine Overhaul Gasket Set - Sterndrive / Cobra - 18-4374
$142.95
Head Gasket, GM V6, Crusader, Mercruiser, Sterndrive / Cobra - 18-3879
Head Gasket, GM V6, Crusader, Mercruiser, Sterndrive / Cobra - 18-3879
$41.93
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Head Gasket, GM 454 -18-3877
Head Gasket, GM 454 -18-3877
$58.44 $61.52
Head Gasket, GM Chevrolet 305 & 350 - 18-3876
Head Gasket, GM Chevrolet 305 & 350 - 18-3876
$40.15
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Head Gasket, GM Chevrolet 4 Cylinder 181 - 18-2946
Head Gasket, GM Chevrolet 4 Cylinder 181 - 18-2946
$27.08 $28.50
Upper Gear Housing Complete, 18-4804 Sierra, 986381
Upper Gear Housing Complete, 18-4804 Sierra, 986381
$4,436.39
Screw
Screw
$68.65
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OMC Sterndrive/Cobra Short Water Pump Shaft, 18-2185
OMC Sterndrive/Cobra Short Water Pump Shaft, 18-2185
$188.45 $198.37
Sea Water Pump, GM V6 / V8 Gen VI Engines, V-belt & 1 Piece Pump
Sea Water Pump, GM V6 / V8 Gen VI Engines, V-belt & 1 Piece Pump
$442.95
Water Pump Housing Kit, OMC Cobra Drive, 18-3349
Water Pump Housing Kit, OMC Cobra Drive, 18-3349
$48.13
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OMC Cobra Water Pump Housing, 18-3206
OMC Cobra Water Pump Housing, 18-3206
$41.08 $43.24
Complete Pump Housing Kit-Sterndrive -18-3386
Complete Pump Housing Kit-Sterndrive -18-3386
$87.10
U-Joint Shaft Bearing
U-Joint Shaft Bearing
$50.68
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Gimbal Bearing Mercruiser Stern Drive, 18-21006 Sierra
Gimbal Bearing Mercruiser Stern Drive, 18-21006 Sierra
$98.23 $103.40
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Gimbal Bearing Mercruiser Stern Drive, 18-21001 Sierra
Gimbal Bearing Mercruiser Stern Drive, 18-21001 Sierra
$74.33 $78.24
Engine Coupler OMC, 986120
Engine Coupler OMC, 986120
$260.57
Sliding Clutch - OMC 914716, 915272, 18-2383 Sierra
Sliding Clutch - OMC 914716, 915272, 18-2383 Sierra
$141.69

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