Martyr Zinc Streamlined Shaft Anode 1in 25mm CMT-X03
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Martyr zinc streamlined shaft anode (part #CMT-X03) for 1" (25mm) propeller shafts. Split clamp-on design with streamlined profile to minimize drag compared to standard collar anodes. Common fit for small sailboats and compact inboard diesel vessel shaft installations. Zinc alloy construction for saltwater and brackish water galvanic corrosion protection of the propeller shaft and surrounding underwater hardware. Replace when the anode is 50% or more consumed, pitted, cracked, or loose. Install on a clean bare-metal shaft surface; do not paint the anode. Ensure both halves are evenly clamped and fasteners are torqued securely. Verify shaft diameter before ordering.
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.