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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.
TecnoSeal Aluminum Transom Anode Bar
TecnoSeal 6249K Mercury Transom & Lower Unit Aluminum Anode
The TecnoSeal 6249K aluminum transom anode bar replaces multiple Mercury and Quicksilver OEM part numbers including 43396A1, 43396A2, 8M0059343, 8M0172259, 818298, 818298A1, 818298Q1, 818298T1, and 8182981.
This rectangular aluminum anode bar is commonly used across a broad range of Mercury and Mariner outboards, sterndrives, offshore gearcases, and transom bracket applications. TecnoSeal is a respected marine corrosion protection manufacturer known for producing high-quality sacrificial anodes for marine engines and drives.
Common Compatible Applications
| Application Type | Common Usage | Anode Location | OEM References |
|---|---|---|---|
| Mercury / Mariner Outboards | Various 2-Stroke, EFI, Optimax, Verado & FourStroke Models | Transom Bracket / Lower Unit | 43396A1, 8M0059343, 818298Q1 |
| Mercury Offshore Gearcases | Select Offshore & High Horsepower Applications | Bracket / Gearcase Area | 818298A1, 818298T1 |
| Mercury Sterndrives | Select Alpha & Bravo Applications | Transom / Drive Assembly | 43396A2, 818298 |
| Mercury FourStroke Applications | Select Modern FourStroke Outboards | Bracket / Lower Unit Area | 8M0059343, 8M0172259 |
Mercury used this rectangular transom anode style across many different outboards, offshore gearcases, transom brackets, and sterndrive applications.
Because Mercury reused these anode designs across multiple engine families and drive systems, the best way to confirm fitment is by matching your original anode shape and OEM part number.
OEM references include: 43396A1, 43396A2, 8M0059343, 8M0172259, 818298, 818298A1, 818298Q1, 818298T1, and 8182981.
OEM Part Numbers & Cross References
| Manufacturer | Part Number |
|---|---|
| TecnoSeal | 6249K |
| Mercury / Quicksilver | 43396A1 |
| Mercury / Quicksilver | 43396A2 |
| Mercury / Quicksilver | 8M0059343 |
| Mercury / Quicksilver | 8M0172259 |
| Mercury / Quicksilver | 818298 |
| Mercury / Quicksilver | 818298A1 |
| Mercury / Quicksilver | 818298Q1 |
| Mercury / Quicksilver | 818298T1 |
| Mercury / Quicksilver | 8182981 |
| Aftermarket Cross Reference | 18-6099 |
What This Anode is Used For
The TecnoSeal 6249K aluminum transom anode bar helps protect compatible Mercury outboards and sterndrives from galvanic corrosion and electrolysis.
This rectangular bar-style anode is commonly mounted on transom brackets, lower units, drive assemblies, and gearcase areas where sacrificial corrosion protection is required.
Sacrificial anodes are designed to corrode before expensive aluminum housings, brackets, and drive components. Routine inspection and replacement helps maintain proper corrosion protection.
Aluminum Anode Benefits
- Suitable for freshwater and saltwater use
- Helps reduce galvanic corrosion and electrolysis damage
- Common Mercury rectangular transom anode style
- Long-lasting aluminum alloy construction
- Easy replacement during routine maintenance
Prefer a Zinc Version?
TecnoSeal 6249Z Zinc Transom Anode Bar
Customers operating primarily in saltwater sometimes prefer zinc anodes. The zinc version of this transom anode bar is also available.
View Zinc VersionKey Features and Benefits
- TecnoSeal aluminum transom anode bar
- Replaces Mercury 43396A1, 43396A2, 8M0059343, and 8M0172259
- Replaces Mercury 818298, 818298A1, 818298Q1, 818298T1, and 8182981
- Used on many Mercury outboard and sterndrive applications
- Common rectangular bar-style anode design
- Fits many transom bracket and lower unit applications
- Helps protect against galvanic corrosion and electrolysis
- Reputable TecnoSeal marine corrosion protection product
Part Details
- Part Number: 6249K
- Manufacturer: TecnoSeal
- Product Type: Aluminum Transom Anode Bar
- Material: Aluminum
- Install Location: Transom Bracket / Lower Unit / Drive Assembly
- Water Type: Freshwater & Saltwater
- Mercury Cross References: 43396A1, 43396A2, 8M0059343, 8M0172259, 818298, 818298A1, 818298Q1, 818298T1, 8182981
- Aftermarket Cross Reference: 18-6099
FAQ
What does TecnoSeal 6249K replace?
This aluminum anode replaces Mercury 43396A1, 43396A2, 8M0059343,
8M0172259, 818298, 818298A1, 818298Q1, 818298T1, and 8182981.
What Mercury applications use this anode?
This rectangular transom anode style is commonly used across many Mercury
and Mariner outboards, offshore gearcases, transom brackets, and select
sterndrive applications.
Where does this anode install?
Depending on the application, this anode installs on the transom bracket,
lower unit, gearcase, or drive assembly.
Can this aluminum anode be used in saltwater?
Yes. Aluminum anodes are commonly used in both freshwater and saltwater environments.
Is there a zinc version available?
Yes. The TecnoSeal 6249Z zinc version is linked above.
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.
- Anodes must be new, unused, and uninstalled.
- Items must be returned in original packaging when applicable.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
6249K, TecnoSeal 6249K, Mercury 43396A1, Mercury 43396A2, Mercury 8M0059343, Mercury 8M0172259, Mercury 818298, Mercury 818298A1, Mercury 818298Q1, Mercury 818298T1, Mercury 8182981, Mercury transom anode, Mercury aluminum bar anode, Mercury lower unit anode, Mercury bracket anode, Mercury sterndrive anode, Mercury Alpha anode, Mercury Bravo anode, Mercury offshore gearcase anode, aluminum transom anode, TecnoSeal Mercury anode, 18-6099
43396A2
8M0059343
8M0172259
818298
818298A1
818298Q1
818298T1
8182981
8189941
815536T1
8155361
53013
87763
19603
821539
99607
40630
810739
8107391
810749
8107491
8107492
8107493
811690
8116901
88238A1
88238A10
88238A2
44343T1
443431
833069T6
833069T9