Tecnoseal 823913 Yamaha Cylinder Head Washer Anode Ø24 mm

Tecnoseal 823913 Yamaha Cylinder Head Washer Anode Ø24 mm

The Tecnoseal 01128 series consists of sacrificial washer anodes designed for Yamaha engine cylinder head applications. Corresponding to original part number 823913, these replacement anodes help protect water-exposed metallic engine components against galvanic corrosion by providing a replaceable sacrificial metal surface.

Each anode features a compact, round cylindrical body with a central through-hole and a countersunk recess on one face. The recessed mounting design accommodates the corresponding fastening arrangement on compatible engine assemblies. The sacrificial metal is gradually consumed during service, helping reduce corrosion of surrounding protected metallic components.

The washer measures 24 mm (0.94 in) in outside diameter and 7 mm (0.28 in) in height, with a 7 mm (0.28 in) central through-hole diameter. Its compact construction is intended for the specified cylinder head anode mounting arrangement.

Three material versions are available with identical dimensions and mounting geometry. The zinc version, Tecnoseal 01128, weighs 20 g; the aluminium version, Tecnoseal 01128AL, weighs 8 g; and the magnesium version, Tecnoseal 01128MG, weighs 5 g. The different materials allow the appropriate sacrificial anode to be selected according to the vessel's operating water conditions.

The same anode design is also listed under Tecnoseal catalogue references 00824, 01109, 01251, 01258, 01400 and 01756. These additional references are useful when identifying corresponding washer anodes across different catalogue sections and engine applications.

Technical Specifications

Available Versions

Dimensions and Mounting Specifications

Compatibility and Cross-References

• Compatible Manufacturer: Yamaha
• Application: Engine cylinder head washer anode
• Original Part Number: 823913
• Zinc Version: Tecnoseal 01128
• Aluminium Version: Tecnoseal 01128AL
• Magnesium Version: Tecnoseal 01128MG
• Additional Tecnoseal Catalogue References: 00824, 01109, 01251, 01258, 01400, 01756

Key Features

• Designed for Yamaha engine cylinder head anode applications.
• Corresponds to original part number 823913.
• Compact round washer-shaped sacrificial anode.
• Countersunk central mounting recess for compatible fastening arrangements.
• Helps protect water-exposed metallic engine components against galvanic corrosion.
• Available in zinc, aluminium and magnesium versions.
• Outside diameter: 24 mm.
• Height: 7 mm.
• Central through-hole diameter: 7 mm.
• Identical dimensions and mounting configuration for all three material versions.
• Additional Tecnoseal catalogue references: 00824, 01109, 01251, 01258, 01400 and 01756.

Compatibility Note: Before ordering, verify the original part number, existing anode dimensions and mounting configuration. Compare the outside diameter, countersunk recess and central through-hole with the original washer anode. Select the appropriate sacrificial material for the vessel's operating water conditions.