Engine Plate Anode for Mariner Mercury 6HP-15HP Outboard 42121A2 42121Q02
42121
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Engine Plate Anode SKU: 42121
Reliable Corrosion Protection for Mercury & Mariner Outboards
This 42121 Engine Plate Anode is a high-quality sacrificial part engineered to protect your outboard's lower unit and gearcase from the destructive effects of galvanic corrosion. Located typically under the cavitation plate, this anode sacrifices itself to ensure your engine's vital metal components remain intact.
Key Features
- ✔ Direct fit for 6HP - 15HP Mercury/Mariner
- ✔ Premium grade Zinc alloy for salt water use
- ✔ Easy bolt-on installation
- ✔ Essential for preventing gearcase pitting
Technical Specs
| Length: | ~42 mm |
| Width: | ~29 mm |
| Material: | Zinc Alloy |
| Mounting: | Bolt-on Plate |
Compatibility / Fitment Guide
| Make/System | Model/Application | Year/Notes |
|---|---|---|
| Mercury / Mariner 2-Stroke | 6HP, 8HP, 9.9HP, 15HP | 1986 & Newer (Non-Yamaha based) |
| Mercury / Mariner 4-Stroke | 8HP, 9.9HP | 1995 - 2004 |
| Mercury / Mariner 4-Stroke | 13.5HP, 15HP | 1998 - 2006 |
| Force Outboards | 9.9HP, 15HP | 1998 (Standard Gearcase) |
OEM Cross Reference
| Mercury / Quicksilver: | 42121A1, 42121A2, 42121Q02, 97-42121Q02 |
| Tecnoseal: | 00810 |
| Martyr: | CM42121Z |
| GLM: | 12907 |
Questions & Answers
Is this a genuine original part?
This is a premium quality aftermarket replacement part, manufactured to meet or exceed original equipment (OE) standards for fitment and performance.
How do I know if it is compatible?
Check the cross-reference list above. Note that this part does not fit Mariner models originally manufactured by Yamaha (Japanese production). It is designed for Mercury/Mariner US-origin models.
When should I replace this anode?
Anodes should be inspected annually. We recommend replacement when approximately 50% of the material has been consumed to ensure continuous protection of your engine.
Note: Please verify your original part number against the references above before purchasing. All products are available at 4boats.co.uk.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.
