Tecnoseal 6AH-45251-00 Yamaha 15–20 HP Outboard Lower Unit Anode

ID 1405585

$ 35.96

1-2 weeks delivery time

Type:

Zinc
Magnesium
Aluminium

Item:

170 g
270 g
690 g

The Tecnoseal 01154 series consists of sacrificial lower unit anodes designed for Yamaha 15–20 HP outboard motors, corresponding to Yamaha OEM part number 6AH-45251-00. Each anode features a shaped plate with an integrated raised mounting section and a 6.5 mm fastening hole, helping protect submerged metallic lower-unit components against galvanic corrosion. The anode measures 80 mm in length (l), 59 mm in width (a) and 26 mm in height (h), with a mounting-hole diameter (Ø) of 6.5 mm. Three material versions are available: zinc (Tecnoseal 01154, 690 g), aluminium (Tecnoseal 01154AL, 270 g) and magnesium (Tecnoseal 01154MG, 170 g). All three versions share identical dimensions and mounting geometry.

Description
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Tecnoseal 6AH-45251-00 Yamaha 15–20 HP Outboard Lower Unit Anode

The Tecnoseal 01154 series consists of sacrificial lower unit anodes designed for Yamaha 15–20 HP outboard motors. Corresponding to Yamaha OEM part number 6AH-45251-00, these replacement anodes help protect submerged metallic components of compatible Yamaha outboard lower units against galvanic corrosion.

Each anode features a shaped metal plate with an integrated raised central mounting section. The plate extends on both sides of the mounting section, forming the distinctive profile shown in the Tecnoseal catalogue. A 6.5 mm fastening hole provides the mounting arrangement.

The anode acts as a sacrificial corrosion protection component. During service, the zinc, aluminium or magnesium material gradually corrodes preferentially, helping reduce galvanic corrosion of surrounding protected metallic engine parts.

According to the Tecnoseal catalogue, the anode measures 80 mm (3.15 in) in length (l), 59 mm (2.32 in) in width (a) and 26 mm (1.02 in) in height (h). The mounting-hole diameter (Ø) is 6.5 mm (0.26 in). All three versions share identical dimensions and mounting geometry.

Three material options are available. The zinc version, Tecnoseal 01154, weighs 0.69 kg (1.52 lbs) and corresponds to Osculati 43.276.00. The aluminium version, Tecnoseal 01154AL, weighs 0.27 kg (0.60 lbs) and corresponds to Osculati 43.276.01. The magnesium version, Tecnoseal 01154MG, weighs 0.17 kg (0.37 lbs) and corresponds to Osculati 43.276.02.

Technical Specifications

Manufacturer	Tecnoseal
Product Type	Outboard Lower Unit Anode
Compatible Manufacturer	Yamaha
Compatible Outboards	15–20 HP
Yamaha OEM Reference	6AH-45251-00
Available Materials	Zinc, Aluminium, Magnesium
Construction	Shaped plate with raised central mounting section
Mounting Configuration	6.5 mm fastening hole

Available Versions and Cross-References

Tecnoseal Code	Material	Weight	Osculati Reference
01154	Zinc	0.69 kg (1.52 lbs)	43.276.00
01154AL	Aluminium	0.27 kg (0.60 lbs)	43.276.01
01154MG	Magnesium	0.17 kg (0.37 lbs)	43.276.02

Dimensions and Mounting Specifications

Length (l)	80 mm (3.15 in)
Width (a)	59 mm (2.32 in)
Height (h)	26 mm (1.02 in)
Mounting-Hole Diameter (Ø)	6.5 mm (0.26 in)

Product Codes and EAN

Tecnoseal Code	EAN
01154	8033837069065
01154AL	8033837069102
01154MG	8059617818432

Compatibility and OEM Cross-References

Compatible Manufacturer: Yamaha
Outboard Power Range: 15–20 HP
Installation Area: Outboard lower unit
Yamaha OEM Part Number: 6AH-45251-00
Zinc Version: Tecnoseal 01154 / Osculati 43.276.00
Aluminium Version: Tecnoseal 01154AL / Osculati 43.276.01
Magnesium Version: Tecnoseal 01154MG / Osculati 43.276.02

Key Features

Designed for compatible Yamaha 15–20 HP outboard motors.
Corresponds to Yamaha OEM part number 6AH-45251-00.
Sacrificial anode for the outboard lower unit.
Shaped plate with integrated raised central mounting section.
Helps protect submerged metallic lower-unit components against galvanic corrosion.
Available in zinc, aluminium and magnesium versions.
Length: 80 mm; width: 59 mm; height: 26 mm.
Mounting-hole diameter: 6.5 mm.
Zinc cross-reference: Osculati 43.276.00.
Aluminium cross-reference: Osculati 43.276.01.
Magnesium cross-reference: Osculati 43.276.02.
Identical dimensions and mounting geometry for all three versions.

Compatibility Note: Before ordering, verify the Yamaha outboard model, OEM part number 6AH-45251-00 and original anode dimensions. Compare the shaped plate, raised mounting section and 6.5 mm fastening hole with the existing component. Select the appropriate sacrificial anode material according to the engine manufacturer's specifications.