Tecnoseal 676-45251-00 / 682-45251-00 Yamaha 40 HP Cylinder Head Washer Anode (Up to 1997)

Name: Tecnoseal 676-45251-00 / 682-45251-00 Yamaha 40 HP Cylinder Head Washer Anode (Up to 1997)
SKU: Tecnoseal 01127

ID 1405495

$ 14.59

1-2 weeks delivery time

Type:

Zinc
Magnesium
Aluminium

Item:

10 g
4 g
3 g

The Tecnoseal 01127 series consists of sacrificial washer anodes designed for the cylinder head of Yamaha 40 HP outboard motors manufactured up to 1997, corresponding to OEM part numbers 676-45251-00 and 682-45251-00. Each anode features a compact cylindrical body with a central mounting hole and countersunk recess, helping protect metallic engine components against galvanic corrosion. It measures 20 mm in outside diameter, 7 mm in height and 6.5 mm in central hole diameter. Three material versions are available: zinc (01127, 10 g), aluminium (01127AL, 4 g) and magnesium (01127MG, 3 g). All versions share identical dimensions and mounting geometry. The same anode design is also listed under Tecnoseal catalogue references 00813, 00823, 00933, 01205, 01250, 01904, 01910 and 08403.

Description
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Tecnoseal 676-45251-00 / 682-45251-00 Yamaha 40 HP Cylinder Head Washer Anode (Up to 1997)

The Tecnoseal 01127 series consists of sacrificial washer anodes designed for the cylinder head of Yamaha 40 HP outboard motors manufactured up to 1997. Corresponding to Yamaha OEM part numbers 676-45251-00 and 682-45251-00, these replacement anodes help protect metallic engine components against galvanic corrosion.

Each anode features a compact, round washer-shaped body with a central mounting hole and a countersunk recess on one face. This recessed design accommodates the corresponding fastening arrangement on compatible Yamaha engine assemblies. The sacrificial anode material provides a replaceable protective surface that helps reduce corrosion of surrounding metallic components exposed to water.

The anode measures 20 mm (0.79 in) in outside diameter and 7 mm (0.28 in) in height, with a 6.5 mm (0.26 in) central through-hole diameter. Its small cylindrical shape makes it suitable for the specified cylinder head anode mounting location.

Three material versions are available with identical dimensions and mounting geometry. The zinc version, Tecnoseal 01127, weighs 10 g. The aluminium version, Tecnoseal 01127AL, weighs 4 g, while the magnesium version, Tecnoseal 01127MG, weighs 3 g. These material options allow selection of the appropriate sacrificial anode according to the vessel's operating water conditions.

The same washer anode design is also listed in the Tecnoseal catalogue under references 00813, 00823, 00933, 01205, 01250, 01904, 01910 and 08403. These additional references help identify equivalent catalogue entries when comparing replacement anodes for compatible marine engines.

Technical Specifications

Manufacturer	Tecnoseal
Product Type	Cylinder Head Washer Anode
Compatible Manufacturer	Yamaha
Compatible Outboards	40 HP
Production Period	Up to 1997
Yamaha OEM References	676-45251-00 / 682-45251-00
Available Materials	Zinc, Aluminium, Magnesium
Construction	Round cylindrical washer with countersunk mounting recess
Mounting Configuration	Central through-hole

Available Versions

Tecnoseal Code	Material	Weight	EAN
01127	Zinc	0.010 kg (0.02 lbs)	8033837065326
01127AL	Aluminium	0.004 kg (0.01 lbs)	8059617815721
01127MG	Magnesium	0.003 kg (0.01 lbs)	8059617815738

Dimensions and Mounting Specifications

Height (h)	7 mm (0.28 in)
Outside Diameter (Ø)	20 mm (0.79 in)
Central Hole Diameter (Ø1)	6.50 mm (0.26 in)

Compatibility and Cross-References

Compatible Manufacturer: Yamaha
Outboard Power: 40 HP
Production Period: Up to 1997
Application: Cylinder head washer anode
Yamaha OEM Part Numbers: 676-45251-00, 682-45251-00
Zinc Version: Tecnoseal 01127
Aluminium Version: Tecnoseal 01127AL
Magnesium Version: Tecnoseal 01127MG
Additional Tecnoseal Catalogue References: 00813, 00823, 00933, 01205, 01250, 01904, 01910, 08403

Key Features

Designed for compatible Yamaha 40 HP outboard motors manufactured up to 1997.
Corresponds to Yamaha OEM part numbers 676-45251-00 and 682-45251-00.
Compact cylindrical sacrificial washer anode.
Countersunk central mounting recess.
Helps protect metallic cylinder head components against galvanic corrosion.
Available in zinc, aluminium and magnesium versions.
Outside diameter: 20 mm.
Height: 7 mm.
Central through-hole diameter: 6.5 mm.
Identical dimensions and mounting geometry for all three material versions.

Compatibility Note: Before ordering, verify the Yamaha outboard model, production year, OEM part number and existing anode dimensions. Compare the washer profile, countersunk mounting recess and central hole diameter with the original component, and select the appropriate sacrificial material for the vessel's operating water conditions.