Skip to content
Celebrating over 50 years of Trusted Marine Service
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

$
$

PCM Catalytic Converter Corner/Crossover Gasket RM0286

$93.53 - $93.53
$93.53
$93.53
$93.53 - $93.53
$93.53
Only 2 left!

Seal the exhaust system connection and prevent leaks with the PCM Catalytic Converter Corner / Crossover Gasket RM0286. This genuine Pleasurecraft ...

View full details
$93.53 - $93.53
$93.53
$93.53
$93.53 - $93.53
$93.53

PCM Gasket RM0294

$12.96 - $12.96
$12.96
$12.96
$12.96 - $12.96
$12.96
Only 2 left!

Seal critical exhaust system components and prevent leaks with the PCM Gasket RM0294. This genuine Pleasurecraft Marine (PCM) OEM gasket i...

View full details
$12.96 - $12.96
$12.96
$12.96
$12.96 - $12.96
$12.96

PCM Catalytic Converter Corner/Crossover Gasket RM0299

$10.94 - $10.94
$10.94
$10.94
$10.94 - $10.94
$10.94
Only 2 left!

Seal the exhaust system connection and prevent leaks with the PCM Catalytic Converter Corner / Crossover Gasket RM0299. This genuine Pleasurecraft ...

View full details
$10.94 - $10.94
$10.94
$10.94
$10.94 - $10.94
$10.94

PCM Gasket RM0309

$17.40 - $17.40
$17.40
$17.40
$17.40 - $17.40
$17.40
Only 4 left!

Seal critical engine components and prevent fluid leaks with the PCM Gasket RM0309. This genuine Pleasurecraft Marine (PCM) OEM gasket is designed ...

View full details
$17.40 - $17.40
$17.40
$17.40
$17.40 - $17.40
$17.40

Mercury MerCruiser Gasket 8M0090319

$6.17 - $6.17
$6.17
$6.17
$6.17 - $6.17
$6.17
Only 4 left!

Mercury MerCruiser Gasket – 8M0090319 Maintain proper cooling system sealing with the Mercury MerCruiser Gasket 8M0090319. This genuine Mercury OEM...

View full details
$6.17 - $6.17
$6.17
$6.17
$6.17 - $6.17
$6.17

Mercury MerCruiser Gasket 8M0092920

$186.86 - $186.86
$186.86
$186.86
$186.86 - $186.86
$186.86
Only 2 left!

Mercury MerCruiser Gasket – 8M0092920 Maintain proper engine sealing with the Mercury MerCruiser Gasket 8M0092920. This genuine Mercury OEM gasket ...

View full details
$186.86 - $186.86
$186.86
$186.86
$186.86 - $186.86
$186.86

Mercury MerCruiser Seal 8M0204680

$6.44 - $6.44
$6.44
$6.44
$6.44 - $6.44
$6.44
Only 2 left!

Mercury MerCruiser Seal – 8M0204680 Maintain proper sealing and gear housing protection with the Mercury MerCruiser Seal 8M0204680. This genuine Me...

View full details
$6.44 - $6.44
$6.44
$6.44
$6.44 - $6.44
$6.44

Mercury MerCruiser O-Ring 8M0204684

$3.74 - $3.74
$3.74
$3.74
$3.74 - $3.74
$3.74
in stock

Mercury MerCruiser O-Ring – 8M0204684 Maintain a proper seal in your marine engine or drive system with the Mercury MerCruiser O-Ring 8M0204684. Th...

View full details
$3.74 - $3.74
$3.74
$3.74
$3.74 - $3.74
$3.74

Mercury MerCruiser Gasket 8M0108647

$28.97 - $28.97
$28.97
$28.97
$28.97 - $28.97
$28.97
Only 4 left!

The Mercury Quicksilver 8M0108647 Gasket (Mercury format 27-8M0108647) is a genuine OEM fuel pump mounting gasket and spacer used on select MerCrui...

View full details
$28.97 - $28.97
$28.97
$28.97
$28.97 - $28.97
$28.97

Mercury MerCruiser Bellows Assembly 8M0124227

$63.41 - $63.41
$63.41
$63.41
$63.41 - $63.41
$63.41
Only 3 left!

Mercury / MerCruiser Quicksilver Bellows Assembly — 8M0124227 The Mercury Quicksilver 8M0124227 Bellows Assembly is a genuine OEM exhaust bell...

View full details
$63.41 - $63.41
$63.41
$63.41
$63.41 - $63.41
$63.41

Mercury MerCruiser Drive Gasket Set 64818T4

$27.04 - $27.04
$27.04
$27.04
$27.04 - $27.04
$27.04
Only 2 left!

Mercury / MerCruiser Quicksilver Drive Gasket Set — 64818T4 The Mercury Quicksilver 64818T4 (Mercury format 27-64818T4) is a genuine OEM drive / b...

View full details
$27.04 - $27.04
$27.04
$27.04
$27.04 - $27.04
$27.04

Mercury MerCruiser Lower Gasket 8M0142616

$14.11 - $14.11
$14.11
$14.11
$14.11 - $14.11
$14.11
Only 1 left!

The Mercury Quicksilver 8M0142616 (Mercury format 27-8M0142616) is a genuine OEM lower face-plate gasket used in the gearcase / water pump assembly...

View full details
$14.11 - $14.11
$14.11
$14.11
$14.11 - $14.11
$14.11

Mercury MerCruiser Water Pump Gasket 879150138

$14.27 - $14.27
$14.27
$14.27
$14.27 - $14.27
$14.27
Only 4 left!

Mercury / MerCruiser Quicksilver Water Pump Gasket — 879150138 The Mercury Quicksilver 879150138 (Mercury format 27-879150138) is a genuine OEM ci...

View full details
$14.27 - $14.27
$14.27
$14.27
$14.27 - $14.27
$14.27

Borg Warner Front Pump Gasket 3-61

$9.11 - $9.11
$9.11
$9.11
$9.11 - $9.11
$9.11
in stock

OEM Borg Warner front pump gasket engineered for reliable sealing performance in marine transmissions. Precision-cut to exact specifications for pr...

View full details
$9.11 - $9.11
$9.11
$9.11
$9.11 - $9.11
$9.11

Yanmar Bonnet Gasket 128170-11310

$11.20 - $11.20
$11.20
$11.20
$11.20 - $11.20
$11.20
Only 2 left!

OEM Yanmar bonnet gasket engineered for reliable sealing performance in marine diesel engines. Precision-cut to exact specifications for proper fit...

View full details
$11.20 - $11.20
$11.20
$11.20
$11.20 - $11.20
$11.20

Sealing Ring - Volvo Penta OEM Part 858986

$13.90 - $13.90
$13.90
$13.90
$13.90 - $13.90
$13.90
Only 4 left!

Volvo Penta OEM sealing ring part number 858986 designed for reliable engine sealing. This precision-engineered sealing ring provides leak-free sea...

View full details
$13.90 - $13.90
$13.90
$13.90
$13.90 - $13.90
$13.90

Volvo Penta Gasket 865385

$18.50 - $18.50
$18.50
$18.50
$18.50 - $18.50
$18.50
Only 4 left!

Volvo Penta 865385 is a genuine OEM gasket used in Volvo Penta diesel lubricating and oil system service. The strongest current parts-diagram trail...

View full details
$18.50 - $18.50
$18.50
$18.50
$18.50 - $18.50
$18.50

Volvo Penta O-Ring 925053

$2.00 - $2.00
$2.00
$2.00
$2.00 - $2.00
$2.00
in stock

Volvo Penta 925053 is a genuine OEM O-ring used in select Volvo Penta sealing applications. Current active parts listings consistently identify it ...

View full details
$2.00 - $2.00
$2.00
$2.00
$2.00 - $2.00
$2.00

Volvo Penta O-Ring 925068

$4.60 - $4.60
$4.60
$4.60 - $4.60
$4.60
Only 4 left!

Volvo Penta 925068 is a genuine OEM O-ring used in select Volvo Penta marine propulsion applications. Current dealer references consistently identi...

View full details
$4.60 - $4.60
$4.60
$4.60 - $4.60
$4.60

Volvo Penta O-Ring 925069

$4.00 - $4.00
$4.00
$4.00 - $4.00
$4.00
Only 4 left!

Volvo Penta 925069 is a genuine OEM O-ring used in select Volvo Penta marine propulsion applications. Current dealer references consistently identi...

View full details
$4.00 - $4.00
$4.00
$4.00 - $4.00
$4.00

Volvo Penta Gasket 947626

$1.70 - $1.70
$1.70
$1.70
$1.70 - $1.70
$1.70
Only 4 left!

Volvo Penta 947626 is a genuine OEM gasket used in Volvo Penta cooling-system service. The strongest current public parts-diagram trail places this...

View full details
$1.70 - $1.70
$1.70
$1.70
$1.70 - $1.70
$1.70

Volvo Penta Gasket 957185

$2.00 - $2.00
$2.00
$2.00
$2.00 - $2.00
$2.00
Only 4 left!

Genuine Volvo Penta gasket for marine engine assemblies. Precision-cut OEM gasket provides reliable sealing between mating surfaces, preventing lea...

View full details
$2.00 - $2.00
$2.00
$2.00
$2.00 - $2.00
$2.00

Volvo Penta O-Ring 969415

$5.90 - $5.90
$5.90
$5.90
$5.90 - $5.90
$5.90
Only 3 left!

Genuine Volvo Penta O-ring seal for marine engine and drive systems. Precision-molded OEM seal provides reliable leak-free sealing in cooling syste...

View full details
$5.90 - $5.90
$5.90
$5.90
$5.90 - $5.90
$5.90

Volvo Penta O-Ring 975315

$69.30 - $69.30
$69.30
$69.30
$69.30 - $69.30
$69.30
Only 4 left!

Genuine Volvo Penta O-ring seal for marine engine and drive systems. Precision-molded OEM seal provides reliable leak-free sealing in cooling syste...

View full details
$69.30 - $69.30
$69.30
$69.30
$69.30 - $69.30
$69.30

Volvo Penta O-Ring 975672

$5.50 - $5.50
$5.50
$5.50
$5.50 - $5.50
$5.50
Only 4 left!

Genuine Volvo Penta O-ring seal for marine engine and drive systems. Precision-molded OEM seal provides reliable leak-free sealing in cooling syste...

View full details
$5.50 - $5.50
$5.50
$5.50
$5.50 - $5.50
$5.50

Volvo Penta O-Ring 976018

$10.00 - $10.00
$10.00
$10.00
$10.00 - $10.00
$10.00
Only 4 left!

Genuine Volvo Penta O-ring seal for marine engine and drive systems. Precision-molded OEM seal provides reliable leak-free sealing in cooling syste...

View full details
$10.00 - $10.00
$10.00
$10.00
$10.00 - $10.00
$10.00

Volvo Penta O-Ring 976970

$12.00 - $12.00
$12.00
$12.00
$12.00 - $12.00
$12.00
Only 4 left!

Genuine Volvo Penta O-ring seal for marine engine and drive systems. Precision-molded OEM seal provides reliable leak-free sealing in cooling syste...

View full details
$12.00 - $12.00
$12.00
$12.00
$12.00 - $12.00
$12.00

Volvo Penta O-Ring - OEM Marine Engine Seal

$4.30 - $4.30
$4.30
$4.30
$4.30 - $4.30
$4.30
Only 5 left!

Genuine OEM O-ring engineered for Volvo Penta marine engines and drives. This precision-molded seal provides reliable sealing in critical engine, c...

View full details
$4.30 - $4.30
$4.30
$4.30
$4.30 - $4.30
$4.30

Volvo Penta O-Ring - OEM Marine Engine Seal

$9.20 - $9.20
$9.20
$9.20
$9.20 - $9.20
$9.20
Only 5 left!

Genuine OEM O-ring engineered for Volvo Penta marine engines and drives. This precision-molded seal provides reliable sealing in critical engine, c...

View full details
$9.20 - $9.20
$9.20
$9.20
$9.20 - $9.20
$9.20

Volvo Penta Sealing Ring Kit - OEM Marine Engine Service Kit

$324.00 - $324.00
$324.00
$324.00
$324.00 - $324.00
$324.00
Only 5 left!

Genuine OEM sealing ring kit engineered for Volvo Penta marine engines and drives. This comprehensive service kit includes all necessary sealing ri...

View full details
$324.00 - $324.00
$324.00
$324.00
$324.00 - $324.00
$324.00

Volvo Penta O-Ring Seal - OEM Part 3583647

$48.10 - $48.10
$48.10
$48.10
$48.10 - $48.10
$48.10
in stock

Genuine Volvo Penta O-Ring Seal designed for reliable sealing in marine engine applications. This precision-engineered O-ring provides durable, lea...

View full details
$48.10 - $48.10
$48.10
$48.10
$48.10 - $48.10
$48.10

Volvo Penta Gasket 11994

$1.70 - $1.70
$1.70
$1.70
$1.70 - $1.70
$1.70
in stock

Volvo Penta 11994 is a genuine OEM gasket used on Volvo Penta marine applications. Current Volvo Penta parts references list 11994 as an active gen...

View full details
$1.70 - $1.70
$1.70
$1.70
$1.70 - $1.70
$1.70

Sierra Gasket for Mercury Outboards - Replaces 27-48043

$12.11 - $12.11
$12.11
$12.11
$12.11 - $12.11
$12.11
Only 2 left!

Premium aftermarket gasket engineered for Mercury outboard motors. This precision-cut gasket provides reliable sealing for critical engine componen...

View full details
$12.11 - $12.11
$12.11
$12.11
$12.11 - $12.11
$12.11

MerCruiser Gasket - OEM Marine Engine Seal

$20.01 - $20.01
$20.01
$20.01
$20.01 - $20.01
$20.01
Only 4 left!

Genuine OEM gasket engineered for MerCruiser marine engines. This precision-cut gasket provides reliable sealing for critical engine components, pr...

View full details
$20.01 - $20.01
$20.01
$20.01
$20.01 - $20.01
$20.01

MerCruiser Gasket - OEM Marine Engine Seal (2-Pack)

$4.69 - $4.69
$4.69
$4.69
$4.69 - $4.69
$4.69
in stock

Genuine OEM gasket engineered for MerCruiser marine engines. This precision-cut gasket provides reliable sealing for critical engine components, pr...

View full details
$4.69 - $4.69
$4.69
$4.69
$4.69 - $4.69
$4.69

MerCruiser Seal - 8M0187157 - 191833

$2.18 - $2.18
$2.18
$2.18
$2.18 - $2.18
$2.18
in stock

Genuine MerCruiser seal designed for reliable sealing in marine engine and drive applications. This OEM-quality seal prevents fluid leaks and maint...

View full details
$2.18 - $2.18
$2.18
$2.18
$2.18 - $2.18
$2.18

Crusader Exhaust Manifold Gasket - RM0007

$6.69 - $6.69
$6.69
$6.69
$6.69 - $6.69
$6.69
Only 2 left!

OEM-quality exhaust manifold gasket designed for Crusader marine engines. This precision-cut gasket ensures a reliable seal between the exhaust man...

View full details
$6.69 - $6.69
$6.69
$6.69
$6.69 - $6.69
$6.69