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Mercury Outboard Parts
Shop OEM and aftermarket Mercury outboard parts for maintenance, repair, troubleshooting, and complete engine rebuild projects. Browse Mercury marine parts by system, including cooling, fuel delivery, electrical and ignition, internal engine components, lower unit parts, steering, trim, and routine service items.
Pro Marine USA carries Mercury outboard engine parts for a wide range of 2-stroke, FourStroke, EFI, Optimax, Pro XS, SeaPro, and Verado applications. Use your engine horsepower, model, serial number, or OEM part number whenever possible to confirm fitment before ordering.
Shop Mercury Outboard Parts by System
- Complete Powerheads
- Control Cables & Boxes
- Cooling System
- Cowlings & Components
- Electrical System
- Engine Oil
- Engine Rebuild Kits
- Fuel & Carburetion System
- Intake System
- Internal Engine Components
- Lower Unit Components
- Oiling System
- Paints
- Service & Oil Change Kits
- Service Manuals
- Steering Systems
- Throttle Components
- Transom & Midsection
- Trim System
- Wizard Performance Parts
Find the Correct Mercury Outboard Part
Mercury outboard parts can vary by horsepower, engine family, model year, and serial number range. If you are unsure which component fits your engine, use the OEM parts lookup to locate the original Mercury part number from an engine diagram.
Once you have the OEM part number, search Pro Marine to find available genuine Mercury and aftermarket replacement options.
Use Our OEM Parts Lookup »Common Mercury Outboard Engine Families
Pro Marine supports many Mercury outboard applications across a wide horsepower range. Always confirm the engine serial number and model information before ordering parts.
- Portable and Midrange: Mercury 2.5HP through 60HP 2-stroke and FourStroke applications
- FourStroke and EFI: common 75HP through 300HP Mercury EFI and FourStroke platforms
- Pro XS: performance-oriented Mercury Pro XS outboards across multiple engine families
- Optimax: direct-injected 2-stroke Mercury Optimax engines, commonly 75HP through 250HP
- Verado: supercharged and naturally aspirated Mercury Verado applications from 135HP through current high-horsepower platforms
- SeaPro: commercial-duty Mercury SeaPro outboards used in professional and high-hour applications
Common Mercury Outboard Repair Areas
- Overheating: inspect the water pump, impeller, thermostat, poppet valve, cooling passages, and related cooling components.
- Hard starting or rough running: inspect fuel pumps, filters, injectors or carburetors, spark plugs, coils, sensors, and intake components.
- No spark or intermittent ignition: check ignition coils, stators, switch boxes, trigger assemblies, sensors, grounds, and wiring.
- Low compression or power loss: inspect pistons, rings, cylinders, bearings, gaskets, reeds, and internal engine components.
- Lower unit noise or water intrusion: inspect seals, bearings, gears, shafts, bearing carriers, and gear lube condition.
- Trim or steering problems: inspect trim motors, pumps, hydraulic components, steering cylinders, hoses, and related rigging parts.
Why Buy Mercury Outboard Parts from Pro Marine USA?
- OEM Mercury and aftermarket replacement options for many common applications.
- Parts for maintenance, repair, engine rebuilding, lower units, electrical systems, fuel systems, steering, trim, and rigging.
- OEM diagram and part-number lookup tools to help identify the correct part before ordering.
- Dealer pricing available for qualified marine repair businesses and dealers.
- Large inventory of Mercury service parts and hard-to-find marine engine components.
- Fast weekday shipping on qualifying in-stock orders.
Frequently Asked Questions
How do I find the correct Mercury outboard part?
Use the engine horsepower, model, serial number, and year whenever available. Mercury frequently uses serial-number ranges to identify engine families, so the serial number is often the most reliable way to confirm fitment.
Can I search Mercury parts by OEM part number?
Yes. Enter the Mercury OEM part number into the Pro Marine site search to locate available OEM and aftermarket replacement options. If you do not know the part number, use the OEM parts lookup first.
Do Mercury outboard parts vary by serial number?
Yes. Many Mercury components change by serial-number range even within the same horsepower or model family. Always compare the serial range listed for the part with your engine before ordering.
Do you carry parts for Mercury Optimax and Verado engines?
Yes. Pro Marine carries parts for many Mercury Optimax, Verado, Pro XS, EFI, FourStroke, and SeaPro applications, including maintenance, fuel, electrical, cooling, internal engine, lower unit, steering, and rigging components.
Do you carry both OEM and aftermarket Mercury parts?
Yes. Pro Marine offers genuine Mercury parts along with aftermarket replacement parts for many common Mercury outboard maintenance, repair, and rebuild applications.
What Mercury outboard parts are commonly replaced during routine maintenance?
Common maintenance items include engine oil, oil filters, fuel filters, spark plugs, water pump kits, impellers, thermostats, gear lube, drain plug seals, anodes, and manufacturer-specific service kit components.
Fitment Tip: Mercury outboard parts often vary by serial-number range. Confirm your engine serial number and OEM part number whenever possible before ordering.
18-2803
27-90430
32120
90430
904301
18-0936
31990
508825
540-28
67624
78690
78690002
9-60057
32150
508823
521-30
87396
90484
904841
18-2504
32090
505-25
508821
60310
74511
76401
88449
85113T
10668K
11338A85
11338A88
18-4319
39450
500-226
500-234
9-64212
10-667K
18-4317
18-4317
39440
500-212
500-214
9-64200
90484A86
90484A88
85114T
Pro Marine Powerhead Gasket Kit
Mercury Mariner 200HP 2.4L Powerhead Gasket Kit
The Pro Marine 669 Powerhead Gasket Kit is designed for Mercury and Mariner 200HP 2.4L V6 outboards. This kit replaces Mercury OEM gasket set numbers 89221A32, 89221A84, 89221A85, and 89221A88, and includes the Pro Marine 246-1 cylinder head gaskets.
Use this kit during a powerhead rebuild, major gasket service, or engine teardown where the powerhead sealing components need to be replaced together.
Compatible Applications
Pro Marine 669 cross references Mercury OEM gasket set numbers 89221A32, 89221A84, and 89221A85. Pro Marine lists this kit for Mercury 200HP 2.4L 1983-1991 applications with 246-1 head gaskets, while related aftermarket cross references for 89221A88 / Sierra 18-4319 commonly list Mercury / Mariner V6 2.4L 200HP applications in the late 1970s through 1990 range depending on source and engine configuration.
| Manufacturer | Common Application | Notes |
|---|---|---|
| Mercury | 200HP V6 2.4L | Commonly listed for 1983-1991 Pro Marine 669 applications |
| Mariner | 200HP V6 2.4L | Verify by OEM gasket kit number and serial number |
| Mercury / Mariner | V6 2.4L 3.375" Bore Applications | Related 89221A88 / Sierra 18-4319 family listings include 200HP 2.4L applications |
Mercury produced multiple V6 gasket kit families for 2.0L, 2.4L, and 2.5L engines. Always verify your engine serial number and original OEM gasket set number before ordering.
This kit replaces Mercury OEM numbers 89221A32, 89221A84, 89221A85, and superseded OEM 89221A88.
OEM & Cross Reference Numbers
| Type | Part Number |
|---|---|
| Pro Marine | 669 |
| Mercury OEM | 89221A32 |
| Mercury OEM | 89221A84 |
| Mercury OEM | 89221A85 |
| Mercury OEM Supersession | 89221A88 |
| Sierra | 18-4319 |
| WSM | 500-238 |
| Mallory | 9-64201 |
What Is Included
This Pro Marine 669 powerhead gasket kit includes the following linked Pro Marine components. Customers who prefer to build their own kit can use the parts list below to order individual gaskets separately.
Powerhead Rebuild Use
A complete powerhead gasket kit helps replace the major sealing components disturbed during teardown and reassembly. On Mercury and Mariner V6 2.4L engines, replacing old gaskets is critical for maintaining crankcase sealing, cooling passage integrity, exhaust sealing, and cylinder head compression sealing.
Always inspect gasket surfaces for corrosion, pitting, warpage, or damage before reassembly. Follow the Mercury service manual for torque specifications, sealant use, and installation sequence.
Pro Marine 669 Features
- Complete Pro Marine powerhead gasket kit
- Designed for Mercury / Mariner 200HP 2.4L V6 applications
- Includes two 246-1 cylinder head gaskets
- Replaces Mercury 89221A32, 89221A84, 89221A85, and 89221A88
- Cross references Sierra 18-4319, WSM 500-238, and Mallory 9-64201
- Includes internally linked individual components for easier reorder
FAQ
What OEM numbers does Pro Marine 669 replace?
Pro Marine 669 replaces Mercury 89221A32, 89221A84, 89221A85, and 89221A88.
What engine does this gasket kit fit?
Pro Marine lists this kit for Mercury 200HP 2.4L outboards from 1983-1991.
Related 89221A88 / Sierra 18-4319 applications commonly list Mercury and
Mariner 200HP 2.4L V6 engines.
Does this kit include head gaskets?
Yes. This kit includes two Pro Marine 246-1 cylinder head gaskets.
Can I buy the individual gaskets separately?
Yes. The included components are linked in the What Is Included section above.
Will this fit a 2.5L Mercury V6?
Do not assume fitment on a 2.5L engine. This kit is for the 89221A32 /
89221A84 / 89221A85 / 89221A88 gasket kit family. Verify your OEM kit number
before ordering.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 continental U.S.
- Orders ship via UPS, USPS, and FedEx.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1-5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Gasket kits must be new, unused, and in original packaging.
- Installed gaskets are not returnable.
- Return authorization required before returning merchandise.
Searchable Terms
669, Pro Marine 669, Mercury 89221A32, Mercury 89221A84, Mercury 89221A85, Mercury 89221A88, Mercury 200HP 2.4L gasket kit, Mercury powerhead gasket kit, Mariner 200HP gasket kit, Sierra 18-4319, WSM 500-238, Mallory 9-64201, 246-1, 425, 428, 654, 657, 660, 677, 678, 679, 681, 684, 685, 686, 689, 8890, 942
10-669K
18-4319
18-4319
39250
500-238
89221A32
89221A84
89221A85
9-64201
18-2508-1
32540
96440
99776
997761
32510
508842
510-30
67074
88727
99173
991731
991732
991734
18-2503
32530
508841
510-35
78068
99177
991771
991772