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.
Match sealing parts by engine brand, serial number, drive model, part number, service location, material, size, and the fluid or pressure being sealed.
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.
Shop Sealing Parts by Top OEM
Popular Gasket, Seal & O-Ring Searches
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.
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.
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.
Use Serial Numbers
Sealing parts can change across engine families and production ranges. Serial number and part number are the best starting points.
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.
Related Maintenance and Repair Parts
Complete the Repair Around the Seal
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.
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Yanmar Elbow Gasket A 128370-13201
Yanmar OEM elbow gasket (Type A) for Yanmar marine diesel engines. Direct OEM replacement for exhaust or coolant elbow sealing. Match by part numbe...
View full detailsVolvo Penta Gasket – 3852111
Volvo Penta 3852111 is a genuine OEM gasket commonly identified in public listings as a thermostat housing gasket. Available parts listings also de...
View full detailsYanmar Seal Washer 12mm 22190-120002
YM-22190-120002 Yanmar Seal Washer YM-22190-120002 Yanmar Seal Washer is best used on the following models: 2TNV70-ASG 3TN86CHT-MASV 3TNE68-GB2S ...
View full detailsYanmar O-Ring D65.6x3.53mm 128990-44100
Yanmar OEM O-ring, D65.6×3.53mm, for Yanmar marine diesel engines. Direct OEM replacement. Match by part number and engine model before ordering. O...
View full detailsVolvo Penta Gimbal Bearing Driveshaft Seal 3852548
Volvo Penta 3852548 is a gimbal bearing / transom driveshaft oil seal used in supported Volvo Penta SX and DP-SM transom shield assemblies. It help...
View full detailsMercury MerCruiser Exhaust Tube Seal - 37641001
he Mercury MerCruiser Quicksilver 37641001 is a genuine Mercury Marine OEM exhaust tube seal used on select vintage Mercury outboard and MerCruiser...
View full detailsMercury MerCruiser Distributor Cap Gasket - 27-805760
The Mercury MerCruiser Quicksilver 27-805760 is a genuine Mercury Marine OEM distributor cap gasket used on select MerCruiser gasoline engines with...
View full detailsPCM Gasket RM0258A
Seal critical exhaust system connections and prevent leaks with the PCM Gasket RM0258A. This genuine Pleasurecraft Marine (PCM) OEM gasket is desig...
View full detailsVolvo Penta Inspection Cover Gasket 20591544 | TAMD60–75 TD TWD OEM
Volvo Penta Inspection Cover Gasket – 20591544 Part Information Part Number: 20591544 Brand: Volvo Penta Official Product Type: Inspection Cov...
View full detailsVolvo Penta Oil Filter Housing Gasket 30788492 | D3 Series OEM
Volvo Penta Oil Filter Housing Gasket – 30788492 Part Information Part Number: 30788492 Brand: Volvo Penta Official Product Type: Oil Filter H...
View full detailsMercury MerCruiser Quicksilver Fuel Pump Gasket 34213 | 27-34213
Mercury MerCruiser Quicksilver Fuel Pump Gasket 34213 | 27-34213 Part Number: 34213 (service format: 27-34213) Brand: Mercury / Quicksilver Produc...
View full detailsVolvo Penta Seawater Pump Flange Gasket 3888837
Volvo Penta Seawater Pump Flange Gasket — Part No. 3888837 Part Number 3888837 Brand Volvo Penta Product Type Seawater Pump F...
View full detailsMercury MerCruiser Quicksilver Quad Ring 20295 | 25-20295 | 1.725 x .210 in.
Mercury / MerCruiser Quicksilver Quad Ring 20295Part Number: 20295 | Service Format: 25-20295 | Size: 1.725 in. × 0.210 in. | Type: Quad ring...
View full detailsVolvo Penta 11mm Sealing Ring 422413
Volvo Penta 11mm Sealing Ring 422413 Part Number: 422413 Brand: Volvo Penta Product Type: Sealing Ring (OEM) Catalog Designation: D = 11 mm System...
View full detailsMercury Complete Engine Gasket Set 27-42364A92 | 6–15 HP 2-Stroke Outboard
Mercury Complete Engine Gasket Set 27-42364A92 Part Number: 27-42364A92 (short ref: 42364A92) Brand: Mercury / Quicksilver Product Type: Complete ...
View full detailsMercury MerCruiser Quicksilver Gimbal Housing O-Ring 20863
Part Details Part Number: 20863 / 25-20863 Brand: Mercury Marine / Quicksilver GTIN / UPC: 745061130234 Dimensions (cross-reference): 2-5/8 in...
View full detailsMercury MerCruiser Quicksilver Exhaust Manifold End Cap Gasket 480431
Exhaust Manifold End Cap / Connector Gasket — OEM Reference 480431 / 27-480431 Part Number: 480431 | Service format: 27-480431 Brand: Mercury Mari...
View full detailsMercury MerCruiser Quicksilver 8M0187157 Gearcase Drain & Fill Screw Seal — Blue OEM Washer
Mercury MerCruiser Quicksilver 8M0187157 — Gearcase Drain & Fill Screw Seal, Blue OEM Washer Part Number 8M0187157 Service Fo...
View full detailsMercury Quicksilver 18785T Cylinder Head Gasket — V-135 / V-150 V6 Outboard
Mercury Quicksilver 18785T — Cylinder Head Gasket, V-135 / V-150 V6 Outboard Part Number 18785T Service Format 27-18785T SK...
View full detailsMercury 18545A1 Power Trim Pump Repair Kit — Oildyne MerCruiser Sterndrive
Mercury 18545A1 — Power Trim Pump Repair Kit, Oildyne Part Number 18545A1 Brand Mercury / Quicksilver (OEM) Product Type Po...
View full detailsMercury MerCruiser Quicksilver O-Ring 8M0204683
Mercury MerCruiser Quicksilver O-Ring – 8M0204683 Part Number: 8M0204683 Brand: Mercury Marine / Quicksilver (OEM) Type: O-Ring Diagram Position: ...
View full detailsMercury MerCruiser Quicksilver Sealing Washer 8M0214950
Mercury MerCruiser Quicksilver Sealing Washer – 8M0214950 Part Number: 8M0214950 (Service format: 12-8M0214950) Brand: Mercury Marine / Quicksilve...
View full detailsVolvo Penta Sealing Ring 181620 – OEM Oil Seal
Volvo Penta OEM Sealing Ring – Part No. 181620 Part Number: 181620 Alternate Format: 181620-6 Brand: Volvo Penta Product Type: Sealing Ring / Oil ...
View full detailsMercury Quicksilver 8M0188440 Oil Filter Adapter Gasket – MerCruiser Remote Oil Filter Assembly | Pack of 2
Mercury Quicksilver Oil Filter Adapter Gasket – MerCruiser Remote Oil Filter Assembly Part Number: 8M0188440 (prefix: 27-8M0188440) Brand: Mercury ...
View full detailsMercury MerCruiser Quicksilver Bearing Carrier Seal 8M0204670
Part Number: 8M0204670 (Mercury service ref: 26-8M0204670)Brand: Mercury / Quicksilver (OEM Genuine)Official Part Type: Bearing carrier / gearcase ...
View full detailsYanmar Cooler Gasket 129693-44420 — 4JH Series Marine Diesel Engine
Yanmar Cooler Gasket 129693-44420This genuine Yanmar OEM cooler gasket seals the heat exchanger or oil cooler assembly on 4JH series marine diesel ...
View full detailsYanmar Cover Gasket 129795-49551 — 4JH Series Marine Diesel Engine
Yanmar Cover Gasket 129795-49551This genuine Yanmar OEM cover gasket seals the inspection or timing cover on 4JH series marine diesel engines. Repl...
View full detailsBorg Warner Alternator Gasket & Seal Kit – A4867HA / 23801B
Borg Warner Alternator Gasket & Seal Kit – A4867HA / 23801B A direct-replacement gasket and seal kit for Borg Warner alternator service on com...
View full detailsVolvo Penta Turbocharger Oil Drain Gasket 3519807 | OEM TD60 TD70 Series
Part Information Part Number: 3519807 Brand: Volvo Penta Official Product Type: Gasket — Turbocharger Oil Drain / Oil Return Connection Supers...
View full detailsVolvo Penta Fuel Feed Pump Gasket 3501530 | OEM MD TMD TAMD KAD
Part Information Part Number: 3501530 Brand: Volvo Penta Official Product Type: Gasket — Fuel Feed Pump Mounting Supersedes: 463392 Replaced ...
View full detailsVolvo Penta D3 Valve Cover Gasket 31430317 | OEM Cylinder Head Seal
Part Information Part Number: 31430317 Brand: Volvo Penta Official Product Type: Valve Cover Gasket — Cylinder Head Supersedes: 30777600, 3133...
View full detailsVolvo Penta D3 Fuel Injector O-Ring Kit 31272771 | OEM Common Rail Seal Set
Part Information Part Number: 31272771 Brand: Volvo Penta Official Product Type: Fuel Injector O-Ring / Seal Kit — Common-Rail Fuel System Sup...
View full detailsVolvo Penta D3 Oil Return Pipe Gasket 31251456 | OEM Turbocharger Oil System
Part Information Part Number: 31251456 Brand: Volvo Penta Official Product Type: Gasket — Engine Oil Return Pipe Supersedes: No supersession o...
View full detailsVolvo Penta D3 Turbocharger Oil Return Sealing Ring 31251439 | OEM
Part Information Part Number: 31251439 Brand: Volvo Penta Official Product Type: Sealing Ring — Turbocharger Oil Return / Drain Connection Sup...
View full detailsVolvo Penta D3 Exhaust Manifold & Turbocharger Gasket 30777682 | OEM
Part Information Part Number: 30777682 Brand: Volvo Penta Official Product Type: Gasket — Exhaust Manifold / Turbocharger Assembly Supersedes:...
View full detailsVolvo Penta Timing Gear Housing Gasket 3580374 — MD2010 / MD2020 / MD2030 / MD2040 / D1 / D2
Volvo Penta Timing Gear Housing Gasket — Part Number 3580374 Part Number 3580374 Brand Volvo Penta OEM Official Part Type Timing Gear ...
View full detailsCrusader Throttle Body Mounting Gasket | MP7.4L MP8.1L MP6.0L | OEM Part RM0251
Crusader Throttle Body Mounting Gasket — OEM Part RM0251 Genuine Crusader / PCM OEM throttle body mounting gasket for compatible Crusader MP7.4L, ...
View full detailsVolvo Penta Lip Seal 21535352 | OEM IPS Intermediate Housing Seal
Volvo Penta Lip Seal — Part #21535352 This is the genuine OEM lip seal for the intermediate housing of Volvo Penta IPS drive systems. Positioned w...
View full detailsVolvo Penta Power Steering Gasket 21769163 | OEM Steering Pump Seal
Volvo Penta OEM Power Steering Gasket Part Number: 21769163 | SKU: 21769163 Brand: Volvo Penta | Official Product Type: Gasket System: Power S...
View full detailsVolvo Penta OEM Water Pump Gasket | Part 3580576
Volvo Penta OEM Water Pump Gasket — Part No. 3580576 Part Number: 3580576 Brand: Volvo Penta Official Product Type: Gaskets, Seals & O-Rings S...
View full detailsVolvo Penta OEM Gasket | Part 3580378
Volvo Penta OEM Gasket — Part No. 3580378 Part Number: 3580378 Brand: Volvo Penta Official Product Type: Gaskets, Seals & O-Rings System: Fuel...
View full detailsVolvo Penta Sealing Ring 1546221
Volvo Penta Sealing Ring — Part No. 1546221 This is the genuine OEM Volvo Penta sealing ring for compatible Volvo Penta marine engine and drive app...
View full detailsVolvo Penta Gasket 1545779 — OEM Marine Engine Seal
Volvo Penta Engine Gasket — Part No. 1545779 This is the genuine OEM Volvo Penta gasket for compatible marine engine applications. Precision-cut to...
View full detailsQuicksilver Gasket 8M0155369 | Mercury MerCruiser OEM Seal
Quicksilver Gasket — Part #8M0155369 A genuine OEM gasket for Mercury and MerCruiser assemblies. Manufactured to factory specifications for proper ...
View full detailsMercury 8M0082880 – OEM Seal Kit, Pack of 3 | MerCruiser Engine
Mercury 8M0082880 – OEM Seal Kit, Pack of 3 | MerCruiser Engine Part Number: 8M0082880 Brand: Mercury Marine Official Product Type: Seal Kit Pack ...
View full detailsMercury MerCruiser Oil Pan Drain Plug Gasket | 8M0077608
Mercury MerCruiser Oil Pan Drain Plug Gasket | Part 8M0077608 Part Number: 8M0077608 Diagram Reference: Position 1116 Brand: Mercury Marine / Quic...
View full detailsMercury MerCruiser O-Ring 25-34821 | OEM Sealing Ring
Mercury MerCruiser O-Ring — Part No. 25-34821 This is the genuine Mercury Marine OEM O-ring listed under part number 25-34821 (base number 34821). ...
View full detailsMercury MerCruiser OEM Engine Gasket – 27-8M0150304
Mercury MerCruiser OEM Engine Gasket – 27-8M0150304 Part Number: 8M0150304 (full catalog number: 27-8M0150304) Brand: Mercury Marine / Quicksilver ...
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