Martyr Aluminum Anode Kit Volvo Penta SX Drive CMT-SXKITA
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The Martyr CMT-SXKITA is an aluminum anode kit designed to protect Volvo Penta SX sterndrives from galvanic corrosion. It includes replacement anodes and mounting hardware for the drive, helping protect the gearcase and transom-related drive components in saltwater and brackish water applications. Martyr markets this kit for Volvo Penta SX drives, and sellers describe it as a complete aluminum SX drive kit.
Key Features
- Aluminum anode kit for Volvo Penta SX drives.
- Designed for saltwater and brackish water use, where aluminum generally lasts longer and protects better than zinc.
- Includes mounting hardware.
- Martyr/CMP anodes are described as using a mil-spec aluminum alloy.
Engine / Drive Compatibility
Designed for:
- Volvo Penta SX model stern drives.
Commonly referenced kit contents:
- 3855411 anode
- 3854130 anode
- fastening hardware.
Serial Number Fitment Notice
Always confirm fitment by:
- Drive model
- Drive serial number
- Existing anode shape and part numbers
There is a separate Martyr kit for SX-A / DPS drives, usually referenced as CMSXAKITA, so this SX kit should not be assumed to fit SX-A/DPS unless your serial lookup confirms it.
When This Part Needs Replacement
- Anodes are 50% consumed or more
- Uneven pitting or accelerated corrosion
- Annual haul-out / service interval
- Evidence of corrosion on drive housing or related underwater hardware
That replacement timing is standard sacrificial-anode practice; Martyr and retailers position this kit specifically as corrosion protection for the SX drive.
Installation Notes
- Replace the full kit together for balanced protection
- Install on clean, bare metal
- Do not paint the anodes
- Reuse hardware only if serviceable; this kit is sold with fasteners.
Alternate / Superseded Part Numbers
- Martyr: CMSXKITA / CMT-SXKITA.
- Common Martyr component references in the kit: 3855411 and 3854130.
Parts Desk Insight
This is the older SX-drive aluminum kit, not the later SX-A/DPS kit. That distinction matters because Volvo anode shapes changed across generations, and ordering by drive serial is the safest way to avoid getting the wrong hardware. Some versions appear sad, don't worry, they are happy to sacrifice for your vessel!
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.