Martyr Magnesium Gimbal Housing Anode for Mercury/MerCruiser – CM43994M
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Martyr Magnesium Gimbal Housing Anode for Mercury/MerCruiser – CM43...
Description
Description
Magnesium Gimbal Housing Anode for Mercury/MerCruiser, manufacturer part number CM43994M. This magnesium sacrificial anode is intended for freshwater only.
Check the exact part number, mounting position and dimensions against the equipment being serviced.
Specifications and selection
| Manufacturer part number | CM43994M |
|---|---|
| Anode alloy | Magnesium |
| Water type | Freshwater only |
| Dimension L | 101 mm |
| Dimension W | 79 mm |
| Dimension H | 38 mm |
| Dimension D | 66 mm |
| Dimension D1 | 35 mm |
| Dimension ID | 7 mm |
| Dimension ID1 | 7 mm |
| Dimension L | 4 in |
| Dimension W | 3.1 in |
| Dimension H | 1.5 in |
| Dimension D | 2.6 in |
| Dimension D1 | 1.36 in |
| Dimension ID | 0.28 in |
| Dimension ID1 | 0.26 in |
Dimension letters follow the manufacturer's drawing. Compare the mounting arrangement and measurements with the part being replaced.
Choosing the correct anode
Freshwater only. Follow the equipment manufacturer's requirements for anode material and application. A shared engine brand or similar appearance alone does not establish compatibility.
View Martyr's product specifications and drawing. Browse Martyr anodes and kits.
OEM and Part Number Cross-References
The following OEM numbers are cross-referenced to this Martyr part. This is a Martyr aftermarket product. Match the application, mounting details and required anode alloy; a reference number does not establish that the original part uses the same alloy.
| Part Number | Reference |
|---|---|
| 97-821631T3 | OEM reference: Mercury |
Inspection and replacement
Inspect regularly and replace when approximately half of the anode has been consumed. Keep the anode unpainted and ensure clean, secure electrical contact with the protected metal. Follow the equipment manufacturer's installation instructions.
Martyr anode care and material guide
Compare engine & drive anodes or browse all Martyr anodes.
Manufacturer-listed Fitment
MerCruiser Alpha One Gen II gimbal anode; match the original old-design mounting configuration.
Match all stated model, year, serial-number and configuration limits, along with the original mounting position and clearance.
