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8M0217563
TecnoSeal Zinc Transom Anode Bar
TecnoSeal 6249Z Mercury Transom & Lower Unit Zinc Anode
The TecnoSeal 6249Z zinc transom anode bar replaces multiple Mercury and Quicksilver OEM part numbers including 43396A1, 43396A2, 8M0059343, 8M0172259, 818298, 818298A1, 818298Q1, 818298T1, and 8182981.
This rectangular zinc anode bar is commonly used across many Mercury and Mariner outboards, sterndrives, offshore gearcases, lower units, and transom bracket applications. TecnoSeal is a respected marine corrosion protection manufacturer known for producing dependable 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 | 6249Z |
| 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 Zinc Anode is Used For
The TecnoSeal 6249Z zinc 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.
Zinc anodes are commonly chosen for boats operated primarily in saltwater. Routine inspection and replacement helps maintain corrosion protection around aluminum housings, brackets, and drive components.
Zinc Anode Benefits
- Commonly preferred for saltwater use
- Helps reduce galvanic corrosion and electrolysis damage
- Common Mercury rectangular transom anode style
- Durable zinc construction
- Easy replacement during routine maintenance
Need the Aluminum Version?
TecnoSeal 6249K Aluminum Transom Anode Bar
For customers who prefer aluminum anodes for freshwater, brackish water, or mixed-use boating, the aluminum version of this transom anode bar is also available.
View Aluminum VersionKey Features and Benefits
- TecnoSeal zinc 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, lower unit, and drive assembly applications
- Helps protect against galvanic corrosion and electrolysis
- Reputable TecnoSeal marine corrosion protection product
Part Details
- Part Number: 6249Z
- Manufacturer: TecnoSeal
- Product Type: Zinc Transom Anode Bar
- Material: Zinc
- Install Location: Transom Bracket / Lower Unit / Drive Assembly
- Recommended Water Type: Saltwater
- Mercury Cross References: 43396A1, 43396A2, 8M0059343, 8M0172259, 818298, 818298A1, 818298Q1, 818298T1, 8182981
- Aftermarket Cross Reference: 18-6099
FAQ
What does TecnoSeal 6249Z replace?
This zinc 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.
Why choose zinc instead of aluminum?
Zinc anodes are commonly chosen for saltwater use. Aluminum anodes are
often preferred for freshwater, brackish water, or mixed-use applications.
Is there an aluminum version available?
Yes. The TecnoSeal 6249K aluminum 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
6249Z, TecnoSeal 6249Z, Mercury 43396A1 zinc, Mercury 43396A2 zinc, Mercury 8M0059343 zinc, Mercury 8M0172259 zinc, Mercury 818298 zinc, Mercury 818298A1 zinc, Mercury 818298Q1 zinc, Mercury 818298T1 zinc, Mercury 8182981 zinc, Mercury zinc transom anode, Mercury zinc bar anode, Mercury zinc lower unit anode, Mercury zinc bracket anode, Mercury sterndrive zinc anode, Mercury Alpha zinc anode, Mercury Bravo zinc anode, Mercury offshore gearcase zinc anode, zinc transom anode, TecnoSeal Mercury zinc anode, 18-6099, 6249K aluminum version
43396A2
8M0059343
8M0172259
818298
818298A1
818298Q1
818298T1
8182981
898298A1
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
18-6018
18-6018
327606
802293
802293T
0173029
0777611
123009
123009
12730
12730
173029
173029
18-6017
18-6017
777611
777611
802192
802192T
OEM Mercury Verado Anode Kit
Mercury V10 Verado 350HP-425HP Corrosion Protection Kit
This genuine OEM Mercury anode kit helps protect compatible Mercury 5.7L V10 Verado 350HP-425HP outboards from galvanic corrosion.
The kit includes replacement trim anodes, power trim anodes, transom anode hardware, washers, and mounting screws for complete corrosion protection service.
Compatible Applications
| Engine Platform | Horsepower Range | Displacement | Application Notes |
|---|---|---|---|
| Mercury Verado V10 | 350HP-425HP | 5.7L FourStroke | Select Verado V10 outboards |
Regular inspection and replacement of worn anodes is recommended, especially for saltwater applications.
What is Included
| Qty | Included Component | Application |
|---|---|---|
| 2 | Trim Anodes | Outboard trim system protection |
| 2 | Power Trim Anodes | Hydraulic trim corrosion protection |
| 1 | Transom Anode | Transom assembly protection |
| Included | Washers & Mounting Screws | Anode installation hardware |
OEM Part Numbers & Cross References
| Brand | Part Number |
|---|---|
| Mercury OEM | 8M0207809 |
What This Anode Kit is Used For
This Mercury anode kit is used to help protect compatible Verado V10 outboards from galvanic corrosion caused by exposure to water, electrical currents, and dissimilar metals.
Sacrificial anodes help absorb corrosive activity before it can damage expensive outboard components such as the gearcase, trim system, mounting bracket, and transom components.
The included trim and power trim anodes are commonly replaced during routine maintenance or whenever excessive anode wear is present.
Mercury anodes are engineered to meet or exceed MIL-A-24779(SH) military specifications for long-lasting corrosion protection performance.
Key Features and Benefits
- Genuine OEM Mercury corrosion protection anode kit
- Fits Mercury 5.7L V10 Verado 350HP-425HP outboards
- Includes trim anodes, power trim anodes, and transom anode
- Includes washers and mounting screws
- Helps protect against galvanic corrosion
- Designed for freshwater and saltwater use
- Meets or exceeds MIL-A-24779(SH) specifications
- OEM Mercury fit and corrosion protection compatibility
Anode Kit Details
- Brand: Mercury Marine
- Part Type: Anode Kit / Corrosion Protection Kit
- OEM Part Number: 8M0207809
- Application: Mercury Verado V10 FourStroke
- Horsepower Range: 350HP-425HP
- Displacement: 5.7L V10
- Water Type: Freshwater & Saltwater Compatible
- System: Corrosion Protection / Trim System
FAQ
What engines does this anode kit fit?
This kit fits compatible Mercury 5.7L V10 Verado 350HP-425HP FourStroke outboards.
What is included in this anode kit?
The kit includes two trim anodes, two power trim anodes, one transom anode, washers, and mounting screws.
Can this anode kit be used in saltwater?
Yes. Mercury states this kit is designed for both freshwater and saltwater applications.
Why are anodes important?
Sacrificial anodes help protect expensive metal outboard components from galvanic corrosion and electrolysis.
How often should anodes be replaced?
Anodes should be inspected regularly and replaced whenever excessive wear or deterioration is present.
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.
- Items must be new, unused, and in original packaging.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
8M0207809, Mercury anode kit, Mercury Verado anode kit, Mercury 350HP Verado anodes, Mercury 400R anodes, Mercury 425HP Verado anodes, Mercury V10 corrosion kit, Mercury power trim anodes, Mercury transom anode, Mercury sacrificial anodes, Mercury corrosion protection kit, Mercury V10 trim anodes
Tecno Seal Aluminum Anode Kit for Mercury L6 Verado
Mercury L6 Verado 350HP-400HP Aluminum Anode Kit
The Tecno Seal 20817 aluminum anode kit is designed for compatible Mercury L6 Verado 350HP-400HP outboards. This kit helps protect submerged metal components from the harmful effects of galvanic corrosion.
Tecno Seal is a reputable marine anode manufacturer known for producing quality corrosion protection components for Mercury and other major marine applications.
Compatible Applications
| Brand | Horsepower Range | Engine Family | Application Notes |
|---|---|---|---|
| Mercury | 350HP-400HP | Inline 6-Cylinder Verado | Compatible high horsepower L6 Verado outboards |
This aluminum anode kit is intended for compatible Mercury L6 Verado 350HP-400HP outboards and helps protect gearcase, transom, and other exposed metal components from galvanic corrosion.
Inspect anodes annually and replace them when they show heavy corrosion, pitting, or significant material loss.
This 20817 anode kit is for Mercury L6 Verado 350HP-400HP models. If you have a Mercury L6 Verado 200HP-300HP model, use the VER6 anode kit linked below.
What is Included
| Included Component | Application |
|---|---|
| Aluminum Anode Set | Replacement corrosion protection for compatible L6 Verado models |
| Transom / Bracket Anodes | Corrosion protection for exposed bracket and transom components |
| Gearcase Anodes | Corrosion protection for lower unit and gearcase components |
| Installation Hardware | Anode replacement installation |
Other L6 Verado Anode Kit
Mercury L6 Verado 200HP-300HP Anode Kit
Tecno Seal aluminum anode kit for Mercury inline 6-cylinder Verado 200HP-300HP models.
View ProductComplete Your Service
Mercury L6 Verado Service Kits
Shop Mercury L6 Verado 100 hour service kits for compatible 200HP-400HP Verado outboards, including options with and without oil.
View 100 Hour Kits
Mercury L6 Verado 300 Hour Kits
Shop Mercury L6 Verado 300 hour service kits for major scheduled maintenance on compatible inline 6-cylinder Verado outboards.
View 300 Hour KitsWhat This Anode Kit is Used For
The Tecno Seal 20817 aluminum anode kit is used to replace worn or corroded sacrificial anodes on compatible Mercury L6 Verado 350HP-400HP outboards.
Sacrificial anodes help protect the gearcase, transom bracket, and other submerged metal components from galvanic corrosion caused by electrical activity in freshwater or saltwater environments.
Periodic anode inspection and replacement is an important part of routine outboard maintenance, especially for boats operated in saltwater or stored in the water for extended periods.
Aluminum anodes are commonly used for modern marine applications because they provide strong corrosion protection in both freshwater and saltwater.
Key Features and Benefits
- Tecno Seal aluminum anode kit for Mercury L6 Verado outboards
- Fits Mercury inline 6-cylinder 350HP-400HP Verado models
- Helps protect gearcase, transom, and exposed metal components
- Helps protect against galvanic corrosion
- Designed for fast inspection and replacement
- Aluminum construction for freshwater and saltwater use
- Includes installation hardware
- Supports annual corrosion protection maintenance
- Quality replacement option from a reputable anode manufacturer
Anode Kit Details
- Part Number: 20817
- Brand: Tecno Seal
- Material: Aluminum
- Water Type: Freshwater & Saltwater
- Engine Compatibility: Mercury Inline 6-Cylinder Verado
- Horsepower Range: 350HP-400HP
- Installation Hardware: Included
- Service Area: Transom, bracket, and gearcase anodes
FAQ
What engines does this 20817 anode kit fit?
This kit fits compatible Mercury inline 6-cylinder Verado 350HP-400HP outboards.
Is this the correct anode kit for Mercury L6 Verado 200HP-300HP models?
No. Mercury L6 Verado 200HP-300HP models use the VER6 anode kit, linked above.
Who makes this anode kit?
This 20817 anode kit is made by Tecno Seal, a reputable manufacturer of marine
sacrificial anodes and corrosion protection products.
Can aluminum anodes be used in saltwater?
Yes. Aluminum anodes are commonly used in both freshwater and saltwater
applications.
How often should I inspect my anodes?
Inspect anodes at least annually and replace them when they show heavy
corrosion, pitting, or significant material loss.
Does this kit include installation hardware?
Yes. Installation hardware is included for anode replacement.
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.
- Items must be new, unused, and in original packaging.
- Installed or used corrosion protection components may not be returnable.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
20817, Mercury L6 Verado 350HP anode kit, Mercury L6 Verado 400HP anode kit, Mercury inline 6 Verado anode kit, Mercury 350HP Verado anodes, Mercury 400HP Verado anodes, Mercury aluminum anode kit, Tecno Seal 20817, Tecnoseal 20817, Mercury transom anodes, Mercury gearcase anodes, Mercury L6 Verado service kits, Mercury L6 Verado 100 hour kit, Mercury L6 Verado 300 hour kit, Mercury corrosion protection kit, VER6, Mercury L6 Verado 200HP-300HP anode kit
76214A1
76214A2
76214A5
76214Q5
76214T3
76214T5
762142
762143
762145
8M0001734
8M0012083
8M0059339
8M0116590
8M0217561
806105
826134
826134A1
826134Q
826134T
847635001
893404