Martyr Zinc Teardrop Hull Anode 5-1/4x2in CMT-T21
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Product Title
Martyr – Zinc Teardrop Hull Anode 5-1/4 x 2 in – CMT-T21
Product Description
The Martyr CMT-T21 is a zinc teardrop hull anode designed for hull and underwater metal corrosion protection in saltwater service. Martyr’s commercial teardrop anode range includes this compact size for hull applications where a smaller streamlined anode body is needed.
Key Features
- Zinc sacrificial teardrop hull anode
- Martyr part number: CMT-T21
- Designed for saltwater use
- Compact teardrop profile for hull protection
- Nominal size: 5-1/4 in. x 2 in.
Application / Compatibility
Suitable for hull and underwater metal protection where a 5-1/4 in. x 2 in. zinc teardrop anode is required. This is a size-and-style-based fitment item rather than an engine-specific part, so matching by overall dimensions, body style, and mounting configuration is the safest method.
Fitment Notice
Fitment should be confirmed by anode size, mounting style, and installation location before ordering. Matching by CMT-T21 and the existing anode dimensions is the safest approach.
When This Part Needs Replacement
Replace the anode when it is heavily wasted, pitted, cracked, loose, or significantly reduced in size. Hull anodes should be inspected regularly because they are designed to sacrifice themselves first in order to protect the hull and nearby underwater metal components.
Installation Notes
Install using the correct mounting method for the specific hull application and do not paint the anode body. Confirm the existing anode style and dimensions before service so the replacement matches the original setup.
Alternate / Superseded Part Numbers when applicable
No confirmed superseded number was found in the reviewed sources for CMT-T21.
Parts Desk Insight
The main thing to match on hull anodes is size and mounting style, not just shape. A teardrop anode like CMT-T21 is chosen to give sacrificial protection with a compact streamlined profile, so getting the dimensions right matters.
Shipping
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.