- Zinc
- Magnesium
- Aluminium
- 10 g
- 4 g
- 3 g
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Tecnoseal 55321 / 87100 Johnson-Evinrude Washer Anode Ø20 mm for 4-Stroke Outboards
The Tecnoseal Johnson-Evinrude Washer Anode is a sacrificial anode designed for corrosion protection of compatible Johnson and Evinrude outboard motor components. According to the Tecnoseal catalogue, it is suitable for Johnson-Evinrude 2–6 HP and 25–225 HP four-stroke applications. It corresponds to original OEM part numbers 55321 and 87100 and is available in zinc, aluminium and magnesium versions.
The anode features a compact cylindrical washer-shaped body with a countersunk central mounting hole. All three versions have an outer diameter of 20 mm, a height of 7 mm and a through-hole diameter of 6.5 mm. The mounting dimensions are identical across all three material versions, while the weights differ.
Technical Specifications
Manufacturer Tecnoseal Product Type Washer Anode OEM References Johnson-Evinrude 55321 / 87100 Compatibility Johnson-Evinrude 2–6 HP / 25–225 HP Engine Type 4-Stroke Available Materials Zinc, Aluminium, Magnesium Outer Diameter 20 mm Height 7 mm Mounting Hole Diameter 6.5 mm
Additional Tecnoseal Catalogue References
The Tecnoseal catalogue also lists this anode as equivalent to the following references:
- 00813
- 00823
- 01127
- 01205
- 01250
- 01904
- 01910
- 08403
Available Versions
Tecnoseal Part Number Material Weight 00933 Zinc 0.010 kg (0.02 lbs) 00933AL Aluminium 0.004 kg (0.01 lbs) 00933MG Magnesium 0.003 kg (0.01 lbs)
Dimensions
Dimension Measurement Height (h) 7 mm (0.28") Outer Diameter (Ø) 20 mm (0.79") Through-Hole Diameter (Ø1) 6.5 mm (0.26")
Key Features
- Sacrificial washer anode for Johnson-Evinrude outboard motor applications.
- Listed for 2–6 HP and 25–225 HP four-stroke outboards.
- Corresponds to original OEM part numbers 55321 and 87100.
- Available in zinc, aluminium and magnesium versions.
- Cylindrical washer-shaped body with a countersunk central mounting hole.
- Identical external dimensions across all materials: Ø20 × 7 mm.
- Mounting hole diameter: 6.5 mm.
- Weights: 10 g (zinc), 4 g (aluminium) and 3 g (magnesium).
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