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Over 50 years of Trusted Marine Service

Marine Gaskets, Seals & O-Rings

Marine Gaskets, Seals & O-Rings

Engine Gaskets, O-Rings, Oil Seals, Water Seals, Bellows, Washers & Sealing Kits

Shop marine gaskets, seals, O-rings, sealing washers, bellows, and service kits for engines, drives, cooling systems, fuel systems, exhaust, pumps, filters, housings, and routine maintenance repairs.

Shop Gaskets & Seals Engine Gaskets O-Rings
Fitment Check

Match sealing parts by engine brand, serial number, drive model, part number, service location, material, size, and the fluid or pressure being sealed.

Ask Parts Desk

Gaskets and seals can look simple, but the wrong thickness, profile, material, or diameter can cause leaks, overheating, water intrusion, or repeat service work.

Find Sealing Parts Faster

Search by Part Number, Engine, Drive, Size, or Service Area

Use the search box for exact part numbers, engine serial numbers, drive models, gasket sets, O-rings, oil seals, water pump gaskets, exhaust gaskets, fuel seals, and seal kits.

Engine Sealing

Gaskets for Maintenance, Repairs, and Reassembly

Engine sealing parts include valve cover gaskets, head gaskets, intake gaskets, oil pan gaskets, timing cover seals, thermostat gaskets, pump gaskets, sealing washers, and O-rings.

Oil Pan GasketsIntake GasketsRocker Cover Gaskets

Water, Oil & Drive Sealing

Seals That Keep Fluids Where They Belong

Oil seals, water seals, shaft seals, drive seals, bellows, drain plug washers, pump cover gaskets, and O-rings help keep oil in, water out, and systems protected.

Shaft SealsWater Pump GasketsPlug Washers
LOC

Match the Exact Location

A seal for a pump, drive, cooler, injector, filter, or drain plug may have a similar name but a different size, material, or profile.

SER

Use Serial Numbers

Sealing parts can change across engine families and production ranges. Serial number and part number are the best starting points.

KIT

Check Related Parts

Some repairs need several sealing parts at once: gaskets, O-rings, washers, clamps, bellows, hardware, sealant, or service kits.

Fitment Guidance

Small Sealing Parts Can Decide the Whole Repair

A wrong gasket or seal can lead to leaks, overheating, fuel smell, oil contamination, water intrusion, exhaust leaks, or repeat labor. Search by the original part number when possible, or send the Parts Desk the engine and service details.

Ask Parts DeskGasket KitsSealing Rings
Have the old part handyPhotos of the gasket, seal, O-ring, package label, or service location can help confirm the correct replacement.
Search clearlyTry part number first, then engine brand plus the exact item: exhaust gasket, shaft seal, impeller O-ring, or drain washer.
Confirm material and sizeO-rings and seals may differ by fluid type, diameter, thickness, shape, temperature range, and pressure.
Inspect the surfaceClean sealing surfaces, damaged housings, corrosion, worn shafts, and improper sealant can cause repeat leaks.

Gaskets, Seals & O-Rings FAQ

Choosing the Right Sealing Parts

Should I search by part number or by the part name?

Search by part number first whenever possible. If you do not have it, search by engine brand, serial number, and the exact sealing location.

Are O-rings, gaskets, and seals interchangeable?

No. O-rings, flat gaskets, sealing washers, and oil seals are designed for different surfaces, fluids, pressures, and movement. Match the original style and fitment.

Should I replace related sealing parts during service?

Often, yes. Many jobs also need O-rings, washers, bellows, clamps, hardware, or a service kit so the repair can be completed cleanly.

Can the Parts Desk help identify a gasket or seal?

Yes. Send the engine or drive serial number, old part number if available, photos, measurements, and where the part installs.

Shop Marine Gaskets, Seals & O-Rings

Find the sealing parts needed to finish marine engine, drive, cooling, fuel, exhaust, pump, filter, and maintenance repairs with confidence.

Shop Gaskets & SealsConfirm Fitment

Filters

Quicksilver 94996Q2 Bell Housing Gasket Kit — MerCruiser R, MR & Alpha One Gen II

$25.18 - $25.18
$25.18
$25.18 - $25.18
$25.18
Item locally warehoused

The Right Gaskets for a Leak-Free Bell Housing InstallationThe Quicksilver 94996Q2 Bell Housing Installation Gasket Kit gives you all six gaskets n...

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$25.18 - $25.18
$25.18
$25.18 - $25.18
$25.18
WSM 007611 Complete Gasket Kit, Yamaha

WSM 007611 Complete Gasket Kit for Yamaha Outboard & PWC Engines

$259.22 - $259.22
$259.22
$259.22 - $259.22
$259.22
Item locally warehoused

A Complete Reseal for Your Yamaha Engine — Done Right the First TimeThe WSM 007611 Complete Gasket Kit delivers a full set of engine gaskets and ou...

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$259.22 - $259.22
$259.22
$259.22 - $259.22
$259.22
WSM 007625 Complete Gasket Kit, Sea-Doo

WSM 007625 Complete Gasket Kit for Sea-Doo PWC Engines

$192.54 - $192.54
$192.54
$192.54 - $192.54
$192.54
Item locally warehoused

Everything You Need for a Proper Sea-Doo Engine RebuildThe WSM 007625 Complete Gasket Kit gives you a comprehensive set of engine gaskets and seals...

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$192.54 - $192.54
$192.54
$192.54 - $192.54
$192.54
Seachoice 22306 Replacement Bowl Kit

Seachoice 22306 Replacement Clear Bowl Kit for Fuel/Water Separators

$45.37 - $45.37
$45.37
$45.37 - $45.37
$45.37
Item locally warehoused

Keep Your Fuel System Running CleanThe Seachoice 22306 Replacement Bowl Kit gives you a direct-fit, clear replacement bowl for your outboard's fuel...

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$45.37 - $45.37
$45.37
$45.37 - $45.37
$45.37
Sierra 80012 Suzuki VST O-Ring

Sierra 80012 Replacement VST O-Ring for Suzuki Outboards

$14.79 - $14.79
$14.79
$14.79 - $14.79
$14.79
Item locally warehoused

Sierra 80012 Replacement VST O-Ring for Suzuki OutboardsA direct-fit replacement O-ring for the Vapor Separator Tank (VST) on Suzuki outboard engin...

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$14.79 - $14.79
$14.79
$14.79 - $14.79
$14.79

SeaStar HP4600 Gland & Seal Kit — Hydraulic Cylinder (HC4645H / HC4647H / HC4648H / HC4658H)

$316.69 - $316.69
$316.69
$316.69 - $316.69
$316.69
Item locally warehoused

Keep Your Hydraulic Steering Cylinder Sealed and PerformingThe SeaStar HP4600 Gland & Seal Kit is a complete rebuild kit designed specifically ...

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$316.69 - $316.69
$316.69
$316.69 - $316.69
$316.69
Sierra 64082 Fuel Gauge Sender Replacement Gasket

Sierra 64082 Fuel Gauge Sender Replacement Gasket

$17.19 - $17.19
$17.19
$17.19 - $17.19
$17.19
Item locally warehoused

Sierra 64082 – Fuel Gauge Sender Replacement GasketKeep your fuel system sealed and your readings accurate. The Sierra 64082 is a direct-fit replac...

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$17.19 - $17.19
$17.19
$17.19 - $17.19
$17.19

Lewmar 360867999 Low Profile Hatch Seal | Replacement Gasket

$97.84 - $97.84
$97.84
$97.84 - $97.84
$97.84
Item locally warehoused

Lewmar 360867999 Replacement Seal — Low Profile Hatch SeriesA replacement seal for Lewmar Low Profile hatches — one of the most widely installed de...

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$97.84 - $97.84
$97.84
$97.84 - $97.84
$97.84

Lewmar 360872999 Low Profile Hatch Seal | Replacement Gasket

$139.98 - $139.98
$139.98
$139.98 - $139.98
$139.98
Item locally warehoused

Lewmar 360872999 Replacement Seal — Low Profile Hatch SeriesThe correct replacement seal for Lewmar Low Profile hatches — one of the most popular d...

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$139.98 - $139.98
$139.98
$139.98 - $139.98
$139.98

Lewmar 360964999 Medium Profile Hatch Seal | Replacement Gasket

$110.88 - $110.88
$110.88
$110.88 - $110.88
$110.88
Item locally warehoused

Lewmar 360964999 Replacement Seal — Medium Profile Hatch SeriesThe correct replacement seal for Lewmar Medium Profile hatches. This seal fits into ...

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$110.88 - $110.88
$110.88
$110.88 - $110.88
$110.88

Lewmar 360758999 New Standard Portlight Seal | Size 0 Replacement

$89.91 - $89.91
$89.91
$89.91 - $89.91
$89.91
Item locally warehoused

Lewmar 360758999 Replacement Seal — New Standard Portlight, Size 0The correct replacement seal for the Lewmar New Standard Portlight in Size 0 — th...

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$89.91 - $89.91
$89.91
$89.91 - $89.91
$89.91

Lewmar 360759999 New Standard Portlight Seal | Size 1 Replacement

$92.41 - $92.41
$92.41
$92.41 - $92.41
$92.41
Item locally warehoused

Lewmar 360759999 Replacement Seal — New Standard Portlight, Size 1Keep your Lewmar portlights watertight with this genuine replacement seal for the...

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$92.41 - $92.41
$92.41
$92.41 - $92.41
$92.41
Taylor "D" Sponge Gasket For Hatches 7'

Taylor Made 32-1725 "D" Sponge Hatch Gasket | 7 ft | 1990–Present Hatches

$64.46 - $64.46
$64.46
$64.46 - $64.46
$64.46
Item locally warehoused

Taylor Made 32-1725 “D” Sponge Hatch Gasket — 7 ftA direct replacement hatch gasket for Taylor Made hatches from 1990 to present. The Taylor Made 3...

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$64.46 - $64.46
$64.46
$64.46 - $64.46
$64.46
9/16" x 10' Gasket for Cast Hatches

Bomar P10055 Hatch Gasket | 9/16" x 10 ft | Cast Hatch Replacement Seal

$145.59 - $145.59
$145.59
$145.59 - $145.59
$145.59
Item locally warehoused

Bomar P10055 Replacement Hatch Gasket — 9/16" × 10 ftThe correct replacement gasket for Bomar’s cast hatch series. The Bomar P10055 features a wide...

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$145.59 - $145.59
$145.59
$145.59 - $145.59
$145.59

Bomar P20002510 Hatch Gasket | 3/8" x 10 ft | Extruded Hatch Replacement Seal

$133.99 - $133.99
$133.99
$133.99 - $133.99
$133.99
Item locally warehoused

Bomar P20002510 Replacement Hatch Gasket — 3/8" × 10 ftThe same proven 3/8" gasket profile as the standard 5 ft roll — in a 10 ft length for larger...

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$133.99 - $133.99
$133.99
$133.99 - $133.99
$133.99
3/8" x 5' Gasket for Extruded Hatches

Bomar P2000255 Hatch Gasket | 3/8" x 5 ft | Extruded Hatch Replacement Seal

$92.59 - $92.59
$92.59
$92.59 - $92.59
$92.59
Item locally warehoused

Bomar P2000255 Replacement Hatch Gasket — 3/8" × 5 ftStop the drips before they become a problem. This Bomar P2000255 replacement gasket is purpose...

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$92.59 - $92.59
$92.59
$92.59 - $92.59
$92.59
Sierra 29459 Drain Screw Gasket for OMC & Mercury/Mariner Outboard Motors, Qty. 2

Sierra 47-29459 Drain Screw Gasket | OMC & Mercury/Mariner Outboards | 2-Pack

$3.79 - $3.79
$3.79
$3.79 - $3.79
$3.79
Item locally warehoused

Sierra 47-29459 Drain Screw Gasket — OMC & Mercury/Mariner OutboardsA simple part that makes a big difference at oil change time. The Sierra 47...

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$3.79 - $3.79
$3.79
$3.79 - $3.79
$3.79
Sierra 29799 Exhaust Manifold Gasket

Sierra 47-29499 Exhaust Manifold Gasket | Fits Manifolds 18-1902 & 18-1903

$52.59 - $52.59
$52.59
$52.59 - $52.59
$52.59
Item locally warehoused

Sierra 47-29499 Exhaust Manifold GasketA direct-fit replacement exhaust manifold gasket for marine inboard and stern drive engines. The Sierra 47-2...

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$52.59 - $52.59
$52.59
$52.59 - $52.59
$52.59
Sierra 06729 Exhaust Elbow Gasket for closed cooling, Mercruiser Stern Drives, Qty. 2

Sierra 47-06729 Exhaust Elbow Gasket | MerCruiser Closed Cooling | 2-Pack

$48.99 - $48.99
$48.99
$48.99 - $48.99
$48.99
Item locally warehoused

Sierra 47-06729 Exhaust Elbow Gasket — MerCruiser Closed Cooling SystemsKeep your MerCruiser stern drive exhaust system sealed and running clean wi...

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$48.99 - $48.99
$48.99
$48.99 - $48.99
$48.99
Scepter 07497 Fuel Fitting-Mercury Tank Bayonet, Metal

Scepter Mercury Tank Bayonet Fuel Fitting – Metal (07497)

$9.99 - $9.99
$9.99
$9.99 - $9.99
$9.99
Item locally warehoused

Scepter Mercury Tank Bayonet Fuel Fitting – Metal (07497) A direct-fit metal bayonet fuel fitting designed for Mercury outboard fuel tanks. Built t...

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$9.99 - $9.99
$9.99
$9.99 - $9.99
$9.99

PCM O-Ring 20156

$5.45 - $5.45
$5.45
$5.45 - $5.45
$5.45
Only 2 left!

PCM O-Ring — Part #20156 This genuine PCM OEM O-ring is a precision sealing replacement for Pleasurecraft Marine inboard engines. O-rings are used ...

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$5.45 - $5.45
$5.45
$5.45 - $5.45
$5.45

PCM O-Ring 22800

$1.20 - $1.20
$1.20
$1.20 - $1.20
$1.20
6 in stock

PCM O-Ring — Part #22800 This genuine PCM OEM O-ring is a precision sealing replacement for Pleasurecraft Marine inboard engines. O-rings are used ...

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$1.20 - $1.20
$1.20
$1.20 - $1.20
$1.20

PCM O-Ring 22802

$1.48 - $1.48
$1.48
$1.48 - $1.48
$1.48
Only 1 left!

PCM O-Ring — Part #22802 This genuine PCM OEM O-ring is a precision sealing replacement for Pleasurecraft Marine inboard engines. O-rings are used ...

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$1.48 - $1.48
$1.48
$1.48 - $1.48
$1.48
Sold out

PCM Gasket 96108

$6.85 - $6.85
$6.85
$6.85 - $6.85
$6.85
Out of stock

PCM Gasket — Part #96108 This genuine PCM OEM gasket is a precision sealing component for Pleasurecraft Marine inboard engines. Gaskets form the cr...

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$6.85 - $6.85
$6.85
$6.85 - $6.85
$6.85
Sold out

PCM Gasket 96216

$7.76 - $7.76
$7.76
$7.76 - $7.76
$7.76
Only 3 left!

PCM Gasket — Part #96216 This genuine PCM OEM gasket is a precision sealing replacement for Pleasurecraft Marine inboard engines. Engine gaskets cr...

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$7.76 - $7.76
$7.76
$7.76 - $7.76
$7.76

PCM Engine Cooling System Gasket | 97361

$3.82 - $3.82
$3.82
$3.82 - $3.82
$3.82
Only 2 left!

PCM Engine Cooling System Gasket | 97361A small part with an outsized job. This OEM-specification gasket seals a mating face in the PCM engine cool...

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$3.82 - $3.82
$3.82
$3.82 - $3.82
$3.82
Sierra 42489 Drain/Fill Plug Washer (5/pk)

Sierra Drain/Fill Plug Washer for OMC Sterndrive & Cobra – 42489 – Pack of 5

$13.59 - $13.59
$13.59
$13.59 - $13.59
$13.59
Item locally warehoused

A proper seal at the gear lube drain and fill ports is essential for protecting your lower unit. This Sierra sealing washer is designed to crush sl...

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$13.59 - $13.59
$13.59
$13.59 - $13.59
$13.59

Mercury - Sea Water Pump Gasket - 27-881603001

$69.15 - $69.15
$69.15
$69.15 - $69.15
$69.15
Only 4 left!

The Mercury MerCruiser Quicksilver 27-881603001 Sea Water Pump Gasket is an OEM replacement gasket for select high-displacement MerCruiser sterndri...

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$69.15 - $69.15
$69.15
$69.15 - $69.15
$69.15

Kohler - Water Outlet Gasket - 229963

$4.86 - $4.86
$4.86
$4.86 - $4.86
$4.86
Only 4 left!

The Kohler 229963 Water Outlet Gasket is a cooling-system sealing gasket used on compatible liquid-cooled Kohler marine and industrial generator en...

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$4.86 - $4.86
$4.86
$4.86 - $4.86
$4.86

Mercury - Water Pump Base to Face Plate Gasket - 27-39625

$5.91 - $5.91
$5.91
$5.91 - $5.91
$5.91
Only 5 left!

The Mercury Marine 27-39625 Water Pump Base to Face Plate Gasket is an OEM lower-unit cooling-system gasket used on compatible Mercury and Mariner ...

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$5.91 - $5.91
$5.91
$5.91 - $5.91
$5.91

Sierra - Exhaust Elbow Gasket - 18-0305-1

$19.14 - $19.14
$19.14
$19.14 - $19.14
$19.14
Only 4 left!

The Sierra Marine 18-0305-1 Exhaust Elbow Gasket is an aftermarket marine exhaust gasket used to seal the joint between the exhaust manifold and ex...

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$19.14 - $19.14
$19.14
$19.14 - $19.14
$19.14

Mercury - Water Distributor Thermostat Housing Gasket - 27-475901

$4.99 - $4.99
$4.99
$4.99 - $4.99
$4.99
Only 5 left!

The Mercury MerCruiser Quicksilver 27-475901 Gasket is an OEM cooling-system sealing gasket used on select Mercury MerCruiser sterndrive engines. I...

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$4.99 - $4.99
$4.99
$4.99 - $4.99
$4.99

Yamaha - Drain Plug Gasket - 90430-08003-00

$2.27 - $2.27
$2.27
$2.27 - $2.27
$2.27
6 in stock

The Yamaha Marine 90430-08003-00 Drain Plug Gasket is a genuine OEM sealing washer used on Yamaha outboard lower-unit gearcase drain and vent screw...

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$2.27 - $2.27
$2.27
$2.27 - $2.27
$2.27

End Plate Gasket 5in x 3/8 Center - 501834RP

$12.08 - $12.08
$12.08
$12.08 - $12.08
$12.08
9 in stock

The 501834RP End Plate Gasket is a marine heat exchanger and expansion tank sealing gasket for 5-inch end plate applications using a centered 3/8" ...

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$12.08 - $12.08
$12.08
$12.08 - $12.08
$12.08

PCM - Cover Drain Exhaust Gasket - 96331

$4.45 - $4.45
$4.45
$4.45 - $4.45
$4.45
9 in stock

The PCM 96331 Cover Drain Exhaust Gasket is a marine exhaust sealing gasket used on Pleasurecraft Marine / PCM engine applications where the exhaus...

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$4.45 - $4.45
$4.45
$4.45 - $4.45
$4.45

Quicksilver — Intake Manifold & Valley Gasket Set 8.1L 496 MAG — 27-881633T01

$477.47 - $477.47
$477.47
$477.47 - $477.47
$477.47
Only 1 left!

The Mercury MerCruiser Quicksilver 27-881633T01 Intake Manifold and Valley Gasket Set is a genuine OEM replacement gasket kit for GM-based 8.1L big...

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$477.47 - $477.47
$477.47
$477.47 - $477.47
$477.47
Sold out

Volvo Penta - Exhaust Elbow Gasket - 863353

$95.00 - $95.00
$95.00
$95.00 - $95.00
$95.00
Out of stock

The Volvo Penta 863353 is a genuine OEM exhaust pipe elbow gasket used on select Volvo Penta heavy-duty marine diesel engines. This gasket seals th...

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$95.00 - $95.00
$95.00
$95.00 - $95.00
$95.00
Sold out

Volvo Penta - Camshaft Sealing Ring - 863231

$33.00 - $33.00
$33.00
$33.00 - $33.00
$33.00
Only 2 left!

The Volvo Penta 863231 is a genuine OEM camshaft sealing ring used at the camshaft outlet / cylinder head sealing location on select Volvo Penta en...

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$33.00 - $33.00
$33.00
$33.00 - $33.00
$33.00

Volvo Penta - Camshaft Sealing Ring - 8631561

$35.90 - $35.90
$35.90
$35.90 - $35.90
$35.90
Only 1 left!

The Volvo Penta 8631561 is an OEM camshaft sealing ring used at the camshaft outlet / cylinder head sealing area on select Volvo Penta engine appli...

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$35.90 - $35.90
$35.90
$35.90 - $35.90
$35.90

Volvo Penta - O-Ring - 861830

$11.80 - $11.80
$11.80
$11.80 - $11.80
$11.80
Only 3 left!

The Volvo Penta 861830 is a genuine OEM O-ring used in the lubricating oil system on select Volvo Penta marine diesel engines. This sealing ring...

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$11.80 - $11.80
$11.80
$11.80 - $11.80
$11.80

Volvo Penta MS3 Reverse Gear Gasket 853939

$11.00 - $11.00
$11.00
$11.00 - $11.00
$11.00
Only 2 left!

The Volvo Penta 853939 is a genuine OEM reverse gear / transmission housing gasket used on select Volvo Penta MS3-series marine gearboxes. This thi...

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$11.00 - $11.00
$11.00
$11.00 - $11.00
$11.00
Sold out

Volvo Penta - Lock Washer - 853869

$63.10 - $63.10
$63.10
$63.10 - $63.10
$63.10
Out of stock

The Volvo Penta 853869 is a genuine OEM front propeller lock washer used on select Volvo Penta Duoprop sterndrives. This tab-style lock washer secu...

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$63.10 - $63.10
$63.10
$63.10 - $63.10
$63.10
Sold out

Volvo Penta - Sealing Ring - 853868

$47.30 - $47.30
$47.30
$47.30 - $47.30
$47.30
Only 3 left!

The Volvo Penta 853868 is a genuine OEM double lip sealing ring used behind the shift mechanism on the gear selector housing of select Volvo Penta ...

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$47.30 - $47.30
$47.30
$47.30 - $47.30
$47.30

Volvo Penta MS4B Transmission Sealing Ring - 853757

$105.00 - $105.00
$105.00
$105.00 - $105.00
$105.00
Only 1 left!

The Volvo Penta 853757 Transmission Sealing Ring is a genuine OEM internal sealing component used in compatible Volvo Penta transmission and revers...

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$105.00 - $105.00
$105.00
$105.00 - $105.00
$105.00

Volvo Penta Lower Gear Housing O-Ring SX-A DPS - 3889786

$7.30 - $7.30
$7.30
$7.30 - $7.30
$7.30
Only 1 left!

The Volvo Penta 3889786 Lower Gear Housing O-Ring is a genuine OEM molded sealing ring used in compatible Volvo Penta sterndrive lower gear housing...

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$7.30 - $7.30
$7.30
$7.30 - $7.30
$7.30

Volvo Penta Lower Gear Housing O-Ring - 3889784

$5.90 - $5.90
$5.90
$5.90 - $5.90
$5.90
Only 1 left!

The Volvo Penta 3889784 Lower Gear Housing O-Ring is a genuine OEM molded sealing ring used in compatible Volvo Penta sterndrive gear housing assem...

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$5.90 - $5.90
$5.90
$5.90 - $5.90
$5.90

Mercury Outboard Propeller Shaft Oil Seal - 8M0205729

$34.28 - $34.28
$34.28
$34.28 - $34.28
$34.28
Only 2 left!

The Mercury MerCruiser Quicksilver 8M0205729 is a genuine Mercury Marine OEM propeller shaft oil seal used in select Mercury, Mariner, and MerCruis...

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$34.28 - $34.28
$34.28
$34.28 - $34.28
$34.28

Volvo Penta Coolant Pump Gasket - 862596

$24.40 - $24.40
$24.40
$24.40 - $24.40
$24.40
Only 1 left!

The Volvo Penta 862596 is a genuine Volvo Penta OEM coolant pump gasket used in select Volvo Penta marine engine cooling-system assemblies where th...

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$24.40 - $24.40
$24.40
$24.40 - $24.40
$24.40