Looking for the best bolt included anode to protect your boat from corrosion? We’ve curated a list of 10 top picks that are easy to install, built to last, and perfect for saltwater or brackish water environments.
Protecting your boat from corrosion is crucial for its longevity. The right anode with a bolt included can save you time and effort. We’ve found the best options to keep your boat safe and performing well.
These top picks are easy to install and built to last. Whether you’re in saltwater or brackish water, they’ll keep your boat protected. Dive in to find the perfect fit for your needs!
List of Top 10 Bolt Included Anode
| Image | Title | Best For | Price |
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Martyr Anodes, CMDIVERA, Aluminum Pleasurecraft Divers Dream Slotted Bolt-On Hull Anode (12 in x 6 in x 0.5 in) – Marine Boat Sacrificial Anode for Saltwater & Brackish Corrosion Protection |
This Martyr Anode is perfect for boat owners who want strong protection against saltwater damage. It’s ideal for those using aluminum boats in salt or mixed water. |
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ZINC Bolt Screw for Trim Anode Mercury | 21740,18-6245, 10-32470 |
The ZINC Bolt Screw for Trim Anode Mercury is perfect for boat owners who need a reliable replacement part. It’s easy to install and works great for marine repairs. |
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Boat Marine 6E5-45371-01 Trim Tab Anode with Bolt for Yamaha Outboard 115-225 HP 2/4-stroke Motors Replacement 6E5-45371-01-00 Sierra 18-6097 |
This Boat Marine Trim Tab Anode is perfect for boat owners with Yamaha Outboard 115-225 HP 2/4-stroke motors. It protects your engine from seawater corrosion, extending its life and keeping it running smoothly. |
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Martyr CMT20, Zinc Alloy Pleasurecraft CMT-20 Small teardrop Bolt-on anode, Zinc Alloy |
The Martyr CMT20 is perfect for boat owners who want to protect their vessels in saltwater. It’s ideal for pleasure craft boats made of iron, steel, aluminum, or magnesium. |
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Martyr CMDIVERZ, Zinc Alloy Pleasurecraft Divers Dream Slotted Bolt-on Plate anode |
This Martyr CMDIVERZ anode is perfect for boat owners who want to protect their vessels in saltwater. It’s ideal for pleasure craft boats made of iron, steel, aluminum, or magnesium. |
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Boat Marine 6H1-45251-02-00 Aluminum Alloy Anode with Bolt for Yamaha Outboard 40-90 HP Motors Replacement 6H1-45251-03-00 Sierra 18-6091 |
This Boat Marine Aluminum Alloy Anode is perfect for boat owners with Yamaha Outboard 40-90 HP motors. It’s ideal for those needing a reliable replacement that works in fresh or salt water. |
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Boat Marine 76214Q5 Zinc Anode with Bolt for MerCruiser Alpha one Gen 2 Bravo 1 2 3 Sterndrives and for Mercury for Mariner Outboard 35-300 HP Motors Replacement 762142 76214A5 Sierra 18-6016 |
This Boat Marine Zinc Anode is perfect for boat owners who want to protect their engines from corrosion. It’s ideal for MerCruiser Alpha One, Bravo Sterndrives, and Mercury/Mariner Outboard motors (35-300 HP). |
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Martyr Anodes, CMDIVERMINIA, Aluminum Divers Dream Mini Slotted Bolt-On Hull Anode (6 L x 4 W x 0.5 H) – Marine Boat Sacrificial Anode for Saltwater & Brackish Corrosion Protection |
This product is perfect for boat owners who want strong protection against saltwater damage. It’s ideal for ocean-going vessels and marine equipment needing long-lasting corrosion defense. |
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US Marine Products LLC Zinc Anode Kit for Mercruiser Bravo 3 Fits 2004 & Newer Outdrives Includes Hardware Replaces 97-888761Q04 |
This Zinc Anode Kit is perfect for boat owners with a Mercruiser Bravo 3 outdrive, 2004 or newer. It’s easy to install and protects your boat from corrosion. |
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Zinc Anode Kit For Mercruiser Alpha 1 Gen 1 And MR Outdrives Includes Hardware Replaces Mercury 97-888756Q04, Quicksilver 888756Q04, Tecnoseal 20800, Seachoice 95001, Martyr CMALPHAGEN1KITZ |
This Zinc Anode Kit is perfect for boat owners who use their Mercruiser Alpha 1 Gen 1 or MR outdrives in saltwater. It’s easy to install and protects your boat from corrosion. |
Detailed Reviews
Discover the top 10 Bolt Included Anodes, handpicked for reliability and performance. Each product is expert-reviewed and backed by customer feedback, ensuring you get the best protection for your boat. Dive in to find the perfect fit for your marine needs!
1. Martyr Anodes, CMDIVERA, Aluminum Pleasurecraft Divers Dream Slotted Bolt-On Hull Anode (12 in x 6 in x 0.5 in) – Marine Boat Sacrificial Anode for Saltwater & Brackish Corrosion Protection

Martyr Anodes protect your boat from corrosion in saltwater and brackish water. Made of aluminum alloy, it’s eco-friendly and lasts 50% longer than zinc anodes.
This bolt-on hull anode is easy to install and built to last. It’s pressure diecast and meets strict quality standards. Keep your boat safe with this reliable solution.
| Pros | Cons |
|---|---|
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Perfect For:
This Martyr Anode is perfect for boat owners who want strong protection against saltwater damage. It’s ideal for those using aluminum boats in salt or mixed water.
Ready to Purchase?
2. ZINC Bolt Screw for Trim Anode Mercury | 21740,18-6245, 10-32470

The ZINC Bolt Screw is a reliable and durable part for your trim anode. It is designed to fit perfectly and last long. This bolt screw is a must-have for maintenance.
It works with GLM, Sierra, and Mercury systems. The part numbers are easy to match. You can trust this product.
This bolt screw is simple to install. It saves time and effort. Get this essential part for your trim anode today.
| Pros | Cons |
|---|---|
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Perfect For:
The ZINC Bolt Screw for Trim Anode Mercury is perfect for boat owners who need a reliable replacement part. It’s easy to install and works great for marine repairs.
Ready to Purchase?
3. Boat Marine 6E5-45371-01 Trim Tab Anode with Bolt for Yamaha Outboard 115-225 HP 2/4-stroke Motors Replacement 6E5-45371-01-00 Sierra 18-6097

The Boat Marine 6E5-45371-01 Trim Tab Anode is a must-have replacement for Yamaha Outboard motors. It fits 115-225 HP 2/4-stroke engines, offering reliable protection against seawater corrosion.
This anode sacrificially corrodes, safeguarding metal parts and extending engine life. The package includes one trim tab anode and one bolt, making installation quick and easy.
| Pros | Cons |
|---|---|
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Perfect For:
This Boat Marine Trim Tab Anode is perfect for boat owners with Yamaha Outboard 115-225 HP 2/4-stroke motors. It protects your engine from seawater corrosion, extending its life and keeping it running smoothly.
Ready to Purchase?
4. Martyr CMT20, Zinc Alloy Pleasurecraft CMT-20 Small teardrop Bolt-on anode, Zinc Alloy

The Martyr CMT20 is a small teardrop bolt-on anode made from zinc alloy. It’s designed to protect ocean-going vessels and metal equipment from corrosion.
This anode works best in saltwater environments. It’s not for freshwater use. The zinc alloy provides cathodic protection for boats and structures.
Martyr anodes are high-quality and pressure diecast. They meet strict quality standards through an ISO 9001 system. This ensures reliable performance for your pleasure craft.
| Pros | Cons |
|---|---|
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Perfect For:
The Martyr CMT20 is perfect for boat owners who want to protect their vessels in saltwater. It’s ideal for pleasure craft boats made of iron, steel, aluminum, or magnesium.
Ready to Purchase?
5. Martyr CMDIVERZ, Zinc Alloy Pleasurecraft Divers Dream Slotted Bolt-on Plate anode

The Martyr CMDIVERZ is a zinc alloy anode designed to protect your boat. It offers low-cost cathodic protection for ocean-going vessels.
This anode is made for saltwater use. It works with iron, steel, aluminum, and magnesium. Not for freshwater.
High-quality manufacturing ensures reliable performance. Pressure diecast for strength and durability. ISO 9001 certified for quality assurance.
| Pros | Cons |
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Perfect For:
This Martyr CMDIVERZ anode is perfect for boat owners who want to protect their vessels in saltwater. It’s ideal for pleasure craft boats made of iron, steel, aluminum, or magnesium.
Ready to Purchase?
6. Boat Marine 6H1-45251-02-00 Aluminum Alloy Anode with Bolt for Yamaha Outboard 40-90 HP Motors Replacement 6H1-45251-03-00 Sierra 18-6091

The Boat Marine Aluminum Alloy Anode is built for Yamaha Outboard motors. It fits 40HP to 90HP models perfectly. This replacement part is easy to install.
It replaces multiple part numbers, including Yamaha 6H1-45251-02-00 and Sierra 18-6091. The aluminum alloy offers longer protection than zinc anodes. Use it in fresh or salt water.
The package includes one anode and one bolt. Do not paint the anode, as it needs water contact to work. Keep your motor protected with this reliable part.
| Pros | Cons |
|---|---|
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Perfect For:
This Boat Marine Aluminum Alloy Anode is perfect for boat owners with Yamaha Outboard 40-90 HP motors. It’s ideal for those needing a reliable replacement that works in fresh or salt water.
Ready to Purchase?
7. Boat Marine 76214Q5 Zinc Anode with Bolt for MerCruiser Alpha one Gen 2 Bravo 1 2 3 Sterndrives and for Mercury for Mariner Outboard 35-300 HP Motors Replacement 762142 76214A5 Sierra 18-6016

Boat Marine 76214Q5 Zinc Anode is a must-have for boat owners. It protects your engine from corrosion. This sacrificial anode is easy to install.
It fits many Mercury, Mariner, and MerCruiser models. The package includes one zinc anode and one bolt.
This anode extends your engine’s lifespan. It enhances performance by preventing seawater damage.
| Pros | Cons |
|---|---|
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Perfect For:
This Boat Marine Zinc Anode is perfect for boat owners who want to protect their engines from corrosion. It’s ideal for MerCruiser Alpha One, Bravo Sterndrives, and Mercury/Mariner Outboard motors (35-300 HP).
Ready to Purchase?
8. Martyr Anodes, CMDIVERMINIA, Aluminum Divers Dream Mini Slotted Bolt-On Hull Anode (6 L x 4 W x 0.5 H) – Marine Boat Sacrificial Anode for Saltwater & Brackish Corrosion Protection

The Martyr Anodes CMDIVERMINIA is a mini slotted bolt-on hull anode designed to protect your marine boat from saltwater and brackish corrosion. Made from aluminum alloy, it’s perfect for ocean-going vessels and marine equipment.
This anode lasts 50% longer than traditional zinc anodes. It’s eco-friendly, with no added cadmium. Easy to install and built to last.
High-quality manufacturing ensures reliable performance. ISO 9001 certified and made with Mil Spec Alloy, it’s a smart choice for long-term protection.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for boat owners who want strong protection against saltwater damage. It’s ideal for ocean-going vessels and marine equipment needing long-lasting corrosion defense.
Ready to Purchase?
9. US Marine Products LLC Zinc Anode Kit for Mercruiser Bravo 3 Fits 2004 & Newer Outdrives Includes Hardware Replaces 97-888761Q04

Protect your Mercruiser Bravo 3 outdrive with this zinc anode kit. It fits 2004 and newer models, ensuring long-lasting performance. The kit includes all necessary hardware for easy installation.
This high-quality replacement is designed to outperform and outlast. It replaces Mercury 97-888761Q04 and Quicksilver 888761Q04, offering superior corrosion protection. Keep your boat’s outdrive in top shape with this reliable solution.
US Marine Products LLC delivers trusted marine parts. This zinc anode kit is a must-have for Bravo 3 owners, ensuring smooth and safe boating.
| Pros | Cons |
|---|---|
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Perfect For:
This Zinc Anode Kit is perfect for boat owners with a Mercruiser Bravo 3 outdrive, 2004 or newer. It’s easy to install and protects your boat from corrosion.
Ready to Purchase?
10. Zinc Anode Kit For Mercruiser Alpha 1 Gen 1 And MR Outdrives Includes Hardware Replaces Mercury 97-888756Q04, Quicksilver 888756Q04, Tecnoseal 20800, Seachoice 95001, Martyr CMALPHAGEN1KITZ

Keep your Mercruiser Alpha 1 Gen 1 or MR outdrive protected with this Zinc Anode Kit. It includes all necessary hardware for easy installation.
This kit replaces top brands like Mercury, Quicksilver, and Seachoice. Use it in saltwater to prevent corrosion. Perfect for boat maintenance.
| Pros | Cons |
|---|---|
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Perfect For:
This Zinc Anode Kit is perfect for boat owners who use their Mercruiser Alpha 1 Gen 1 or MR outdrives in saltwater. It’s easy to install and protects your boat from corrosion.
Ready to Purchase?
Buying Guide
Protecting your boat from corrosion is easy with the right anode. These bolt-included options save you time and effort. Let’s find the perfect fit for your boat!
Factors to Consider When Buying a Bolt-Included Anode:
– Material: Choose aluminum for longevity or zinc for saltwater protection. Aluminum lasts 50% longer but zinc works best in ocean environments.
– Compatibility: Ensure the anode fits your boat’s make and model. Check part numbers for a perfect match.
– Water Type: Use aluminum for fresh or saltwater and zinc for saltwater only. Pick the right one for your boating area.
– Ease of Installation: Look for bolt-included kits with clear instructions. They make installation quick and simple.
– Durability: Opt for pressure diecast anodes that meet ISO 9001 standards. They’re built to last and perform reliably.
– Eco-Friendliness: Choose cadmium-free options like aluminum anodes. They’re better for the environment.
– Size: Match the anode’s size to your boat’s needs. Larger boats may need bigger anodes for full protection.
– Brand Reputation: Trust well-known brands like Martyr or US Marine Products. They offer high-quality, reliable solutions.
With these tips, you’ll find the best bolt-included anode to keep your boat safe and performing well!