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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Jabsco 185961000 Macerator Pump Gasket Kit
The Jabsco 185961000 is a replacement gasket kit designed to restore a proper seal on Jabsco macerator pumps. Keeping gaskets in good condition is ...
View full detailsGROCO ARG-506 Drain Wingnut & O-Ring — For ARG Strainers (Pre-August 2001)
The GROCO ARG-506 is the OEM drain wingnut and O-ring replacement for GROCO ARG-series raw-water strainers manufactured before August 2001. If your...
View full detailsAttwood Adjustable Livewell Aerator Spray Head – Side-Mount, 90° Fitting
Attwood Adjustable Livewell Aerator Spray Head – Side-Mount, 90° FittingAn adjustable aerator spray head designed for livewells with built-in overf...
View full detailsSierra Upper Unit Seal Kit (47-2648)
The Sierra 47-2648 Upper Unit Seal Kit is a complete replacement seal kit for the upper unit (intermediate housing) of marine outboard and sterndri...
View full detailsJohnson Pump Replacement Strainer Cover with Silicone O-Rings – Clear Acrylic
Johnson Pump Replacement Strainer Cover with Silicone O-Rings – Clear AcrylicKeep your wash-down or water pressure pump strainer serviceable with t...
View full detailsSierra Lower Unit Seal Kit for Johnson/Evinrude Outboards (47-2623)
The Sierra 47-2623 Lower Unit Seal Kit is a complete replacement seal kit engineered for Johnson and Evinrude outboard lower units. This kit provid...
View full detailsSierra Cobra Outdrive Mounting Gasket Set (47-2613)
The Sierra 47-2613 Cobra Outdrive Mounting Gasket Set is a complete sealing kit for the outdrive mounting interface on OMC Cobra sterndrive systems...
View full detailsPerko Spare Fuel Cap with O-Ring & Retaining Cable – 1270 Series
Perko Spare Fuel Cap with O-Ring & Retaining Cable – 1270 SeriesA direct-replacement spare cap for Perko 1270 series combination gas fill and t...
View full detailsSierra Lower Unit Seal Kit (47-2598)
The Sierra 47-2598 Lower Unit Seal Kit is a complete replacement seal kit for marine lower units. Engineered to Sierra's marine-grade standards, th...
View full detailsWSM 2-Stroke Intake Gasket for Kawasaki PWC (007331)
The WSM 007331 2-Stroke Intake Gasket is a precision-cut replacement gasket designed for Kawasaki personal watercraft with 2-stroke engines. Built ...
View full detailsBeckson 8" Heavy-Duty Replacement O-Ring for Pry-Out Deck Plate
Beckson 8" Heavy-Duty Replacement O-Ring for Pry-Out Deck PlateRestore the watertight seal on your Beckson 8" pry-out deck plate with this extra-he...
View full detailsBeckson 6" Replacement O-Ring for Screw-Out Deck Plate
Beckson 6" Replacement O-Ring for Screw-Out Deck PlateKeep your Beckson 6" screw-out deck plate watertight with this direct-fit replacement O-ring....
View full detailsSea-Dog 8" Low Profile Pop-Out Deck Plate – Black
Sea-Dog 8" Low Profile Pop-Out Deck Plate – BlackA larger-format, flush-mount deck plate designed for easy access to storage compartments, bilge ar...
View full detailsSea-Dog 8" Low Profile Pop-Out Deck Plate – White
Sea-Dog 8" Low Profile Pop-Out Deck Plate – WhiteA larger-format, flush-mount deck plate designed for easy access to storage compartments, bilge ar...
View full detailsSea-Dog 6" Low Profile Pop-Out Deck Plate – Black
Sea-Dog 6" Low Profile Pop-Out Deck Plate – BlackA clean, low-profile solution for accessing storage compartments, bilge areas, and wiring runs on ...
View full detailsSea-Dog 6" Low Profile Pop-Out Deck Plate – White
Sea-Dog 6" Low Profile Pop-Out Deck Plate – WhiteA clean, low-profile solution for accessing storage compartments, bilge areas, and wiring runs on ...
View full detailsSeachoice Fuel Sender Replacement Gasket – 50-15511
Seachoice Fuel Sender Replacement Gasket – 50-15511Keep your fuel sender sealed and leak-free with this direct-fit replacement gasket. Designed spe...
View full detailsBeckson 6" Screw-Out Deck Plate with Trim Ring, Smooth, Black
Beckson 6" Screw-Out Deck Plate with Trim Ring — Smooth, BlackThe 6" version of Beckson’s DP series steps up the opening size for applications wher...
View full detailsBeckson 4" Screw-Out Deck Plate with Trim Ring, Smooth, White
Beckson 4" Screw-Out Deck Plate with Trim Ring — Smooth, WhiteThe white version of Beckson’s 4" screw-out deck plate, built around the same single-...
View full detailsBeckson 4" Screw-Out Deck Plate with Trim Ring, Smooth, Black
Beckson 4" Screw-Out Deck Plate with Trim Ring — Smooth, BlackBeckson’s screw-out deck plates are built around a single-start buttress thread — a t...
View full detailsT-H Marine Low-Profile Twist-Out Deck Plate, 6"
T-H Marine Low-Profile Twist-Out Deck Plate — 6"The 6-inch version of T-H Marine’s Low-Profile Twist-Out Deck Plate steps up the opening size for a...
View full detailsScandvik 12104P Recessed Deck Drain Cap & Cup Assembly — Zytel Nylon, 2-3/4" Mount (390-12104P)
Scandvik 12104P Recessed Deck Drain Cap & Cup AssemblyA premium recessed deck drain cap and cup assembly from Scandvik, engineered for a flush,...
View full detailsT-H Marine Low-Profile Twist-Out Deck Plate, 4"
T-H Marine Low-Profile Twist-Out Deck Plate — 4"When space is tight and a clean, flush deck surface matters, the T-H Marine Low-Profile Twist-Out D...
View full detailsSea Dog Line 1" UV-Resistant Nylon Drain Plug with Gasket — White (354-5200101)
Sea Dog Line 1" UV-Resistant Nylon Drain Plug with Gasket — WhiteThe white-finish variant of Sea Dog Line's 1" UV-resistant nylon drain plug, desig...
View full detailsT-H Marine Sure-Seal Screw-Out Deck Plate, 8"
T-H Marine Sure-Seal Screw-Out Deck Plate — 8"The T-H Marine Sure-Seal is an 8-inch screw-out deck plate built around a fully overlapping lid and a...
View full detailsTempress 44733 Access Hatch with Cam Latch, 13" x 30", Dark Grey
Tempress 44733 Access Hatch with Cam Latch — 13" × 30", Dark GreyThe largest opening in the Tempress Access Cam Latch range, now in dark grey. The ...
View full detailsSea Dog Line 1" UV-Resistant Nylon Drain Plug with Gasket — RIBs, Transoms & Baitwells (354-520010)
Sea Dog Line 1" UV-Resistant Nylon Drain Plug with GasketA purpose-built 1" drain plug for RIBs, small boats, transoms, baitwells, ice chests, and ...
View full detailsTempress 44730 Access Hatch with Cam Latch, 13" x 30", White
Tempress 44730 Access Hatch with Cam Latch — 13" × 30", WhiteThe largest hatch in the Tempress Access Cam Latch range, the 44730 is built for appli...
View full detailsBeckson DP10 1" Screw-Type Drain Plug with Gasket — Self-Cleaning Thread, Black (35-DP10B)
Beckson DP10 1" Screw-Type Drain Plug with Gasket — BlackA well-engineered 1" drain plug for boat transoms, fish wells, coolers, ice chests, and wa...
View full detailsTempress 44630 Access Hatch with Cam Latch, 13" x 17", White
Tempress 44630 Access Hatch with Cam Latch — 13" × 17", WhiteThe Tempress 44630 fills the gap between the compact 11" × 15" and the larger 13" × 23...
View full detailsT-H Marine 1" Screw-Type Drain Plug — Black Nylon with O-Ring Seal (232-DP1DP)
T-H Marine 1" Screw-Type Drain Plug — Black Nylon with O-Ring SealA reliable, vibration-resistant 1" drain plug for boat transoms, livewells, baitw...
View full detailsTempress 44533 Access Hatch with Cam Latch, 13" x 23", Dark Grey
Tempress 44533 Access Hatch with Cam Latch — 13" × 23", Dark GreyThe Tempress 44533 brings the same walk-on-rated, weather-tight performance of the...
View full detailsAttwood 3/4" Plastic Drain Plug & Receiver Kit — ABS with Elastomeric Gasket (23-172113)
Attwood 3/4" Plastic Drain Plug & Receiver KitA complete, ready-to-install 3/4" drain plug and receiver kit for boats, livewells, baitwells, an...
View full detailsTempress 44530 Access Hatch with Cam Latch, 13" x 23", White
Tempress 44530 Access Hatch with Cam Latch — 13" × 23", WhiteWhen you need a large, walk-on-rated access opening with a secure weather-tight closur...
View full detailsTempress 44333 Access Hatch with Cam Latch, 11" x 15", Dark Grey
Tempress 44333 Access Hatch with Cam Latch — 11" × 15", Dark GreyThe same walk-on-rated, weather-tight performance as the Tempress 44330 — now in a...
View full detailsMoeller 1" Aluminum Boat Drain Kit — Transom, Livewell & Baitwell (114-020848001)
Moeller 1" Aluminum Boat Drain KitA purpose-built 1" drain kit for aluminum boats, designed to install cleanly in transom walls, livewells, and bai...
View full detailsTempress 44330 Access Hatch with Cam Latch, 11" x 15", White
Tempress 44330 Access Hatch with Cam Latch — 11" × 15", WhiteBuilt for high-traffic deck areas where a reliable, weather-tight seal is non-negotiab...
View full detailsMoeller Flush-Mount Transom Drain Tube with Plug — O-Ring Sealed, Trailerable Boats (114-02030310)
Moeller Flush-Mount Transom Drain Tube with PlugA clean, low-profile transom drain solution for trailerable boats. This drain tube recesses flush i...
View full detailsTempress Screw-Out Deck Plate – 8", White
The Tempress Screw-Out Deck Plate keeps wiring runs, fuel lines, and plumbing connections accessible without compromising your deck’s watertight in...
View full detailsSeachoice 2-7/8" Scupper Valve Kit — Self-Bailing Cockpit Drain (50-18261)
Seachoice 2-7/8" Scupper Valve Kit — Self-Bailing Cockpit DrainKeep your cockpit draining freely and prevent water from washing back aboard with th...
View full detailsSeachoice Screw-Type Drain Plug with O-Ring Seal — Boat Transom, Fish Well & Ice Chest (50-18781)
Seachoice Screw-Type Drain Plug with O-Ring SealA reliable, positive-sealing drain plug for boat transoms, fish wells, ice chests, and other onboar...
View full detailsJabsco 29092-1000 Triadic Full-Flow Valve Gasket — Par Manual & Electric Marine Toilets
Jabsco 29092-1000 Triadic Full-Flow Valve GasketA wide-fit OEM replacement valve gasket for Jabsco Par manual and electric marine toilets. The tria...
View full detailsJabsco 37040-0000 Seal & Gasket Service Kit — Electric Marine Toilet
Jabsco 37040-0000 Seal & Gasket Service KitRestore full sealing integrity to your Jabsco electric marine toilet with this comprehensive OEM sea...
View full detailsJabsco 29042-0000 Pump Valve Gasket — Twist 'N' Lock Manual Marine Toilet
Jabsco 29042-0000 Pump Valve GasketKeep your Jabsco Twist 'N' Lock manual marine toilet pumping cleanly with this OEM replacement pump valve gasket...
View full detailsJabsco 29041-1000 Base Assembly — Manual Marine Toilet (29090-2 & 29120-2 Series)
Jabsco 29041-1000 Base AssemblyThe structural foundation of your Jabsco manual marine toilet, the base assembly provides the mounting platform and ...
View full detailsJabsco 43990-0066 O-Ring — Marine Toilet & Pump Replacement Seal
Jabsco 43990-0066 O-RingA precision-fit replacement O-ring for Jabsco marine toilet and pump systems. This small but critical seal maintains watert...
View full detailsDometic Toilet Bowl Seal Kit — SeaLand, Traveler & VacuFlush Toilets (51-385316140)
Dometic Toilet Bowl Seal Kit (51-385316140)Restore a clean, odour-free seal on your marine head with this OEM-spec toilet bowl seal kit from Dometi...
View full detailsDometic Toilet Bowl Seal Kit — SeaLand, Traveler & VacuFlush Toilets
Dometic Toilet Bowl Seal KitKeep your marine head operating cleanly and reliably with this OEM-spec toilet bowl seal kit from Dometic. Designed as ...
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