Martyr Zinc Bearing Carrier Anode Volvo Penta SX CMT-3852970Z
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The Martyr CMT-3852970Z is a zinc bearing carrier anode designed for select Volvo Penta sterndrive applications. It cross-references to Volvo Penta 3852970 and is used to help protect the bearing carrier and nearby lower-unit components from galvanic corrosion. Martyr lists this part in the Volvo Penta anode range, and current references consistently identify it as a bearing carrier / bar anode.
This is a zinc anode, making it the correct material choice for saltwater use. Current dimensional references for CM3852970Z are about 104 mm length, 28 mm width, 11 mm thickness, and 7 mm hole ID.
Key Features
- Zinc sacrificial bearing carrier anode
- Martyr part number: CMT-3852970Z / CM3852970Z
- Replaces Volvo Penta 3852970
- Designed for saltwater use
- Approx. dimensions: 104 mm x 28 mm x 11 mm
- Approx. hole ID: 7 mm
Application / Compatibility
Current supported references associate this anode with select Volvo Penta SX drive applications, including SX-C references. Some current references also show the same 3852970 pattern used in OMC King Cobra bearing-carrier applications, so matching by OEM number, installed shape, and dimensions is the safest fitment method.
Serial Number Fitment Notice
Fitment should be verified by drive model, serial number, installed anode shape, and OEM part number before ordering. The strongest supported match point is 3852970.
When This Part Needs Replacement
Replace this anode when it is heavily wasted, pitted, cracked, loose, or significantly reduced in size. Bearing carrier anodes should be checked regularly because they are designed to sacrifice themselves first in order to protect more expensive lower-unit components from corrosion damage. Zinc is intended for saltwater use.
Installation Notes
Install on a clean bare-metal contact surface and do not paint the anode. Confirm the installed part matches the 3852970 bearing carrier bar pattern before installation.
Alternate / Superseded Part Numbers when applicable
- 3852970
- CM3852970Z
- 914040
Parts Desk Insight
Bearing carrier anodes are easy to overlook because they are tucked into the lower-unit area, but they protect a much more expensive part of the drive. The most important detail on this one is application: it is a bearing carrier anode, not a trim-tab anode, so matching by 3852970 and the installed bar shape is the safest way to avoid a bad fit.
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
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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.
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