Tecnoseal 6AW-45373-00 Yamaha 300–350 HP Outboard Lower Unit Anode

ID 1405589

$ 62.49

1-2 weeks delivery time

Type:

Zinc
Magnesium
Aluminium

Item:

400 g
260 g
1.03 kg

The Tecnoseal 01155 series consists of sacrificial lower unit anodes designed for Yamaha 300–350 HP outboard motors, corresponding to Yamaha OEM part number 6AW-45373-00. Each anode features a shaped plate with two raised mounting sections and a central 11 mm fastening hole, helping protect submerged metallic lower-unit components against galvanic corrosion. The anode measures 90 mm in length (l), 93 mm in width (a), 65 mm in overall height (h) and 52 mm in secondary height (h1). Three material versions are available: zinc (Tecnoseal 01155, 1.03 kg), aluminium (Tecnoseal 01155AL, 0.40 kg) and magnesium (Tecnoseal 01155MG, 0.26 kg). All versions share identical dimensions and mounting geometry.

Description
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Tecnoseal 6AW-45373-00 Yamaha 300–350 HP Outboard Lower Unit Anode

The Tecnoseal 01155 series consists of sacrificial lower unit anodes designed for Yamaha 300–350 HP outboard motors. Corresponding to Yamaha OEM part number 6AW-45373-00, 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 a curved lower profile and two raised sections extending from its mounting side. A central fastening hole provides the mounting arrangement. The distinctive shape corresponds to the installation geometry illustrated in the Tecnoseal catalogue and should be checked when identifying the correct replacement.

The zinc, aluminium or magnesium material acts as a sacrificial corrosion protection component. During service, the anode gradually corrodes preferentially, helping reduce galvanic corrosion of surrounding protected metallic lower-unit parts. The anode should be inspected and replaced in accordance with the Yamaha engine manufacturer's maintenance requirements.

According to the Tecnoseal catalogue, the anode measures 90 mm (3.54 in) in length (l), 93 mm (3.66 in) in width (a), 65 mm (2.56 in) in overall height (h) and 52 mm (2.05 in) in secondary height (h1). The central mounting-hole diameter (Ø) is 11 mm (0.43 in). These dimensions are common to all three available versions.

Three material versions are available. The zinc version, Tecnoseal 01155, weighs 1.03 kg (2.27 lbs). The aluminium version, Tecnoseal 01155AL, weighs 0.40 kg (0.88 lbs), while the magnesium version, Tecnoseal 01155MG, weighs 0.26 kg (0.57 lbs). The appropriate material should be selected according to the engine manufacturer's specifications and operating water conditions.

Technical Specifications

Manufacturer	Tecnoseal
Product Type	Outboard Lower Unit Anode
Compatible Manufacturer	Yamaha
Compatible Outboards	300–350 HP
Yamaha OEM Reference	6AW-45373-00
Available Materials	Zinc, Aluminium, Magnesium
Construction	Shaped plate with two raised mounting sections
Mounting Configuration	Central 11 mm fastening hole

Available Versions

Tecnoseal Code	Material	Weight	EAN
01155	Zinc	1.03 kg (2.27 lbs)	8059617815868
01155AL (Osculati 43.252.98)	Aluminium	0.40 kg (0.88 lbs)	8033837069072
01155MG	Magnesium	0.26 kg (0.57 lbs)	8052744983776

Dimensions and Mounting Specifications

Length (l)	90 mm (3.54 in)
Width (a)	93 mm (3.66 in)
Overall Height (h)	65 mm (2.56 in)
Secondary Height (h1)	52 mm (2.05 in)
Mounting-Hole Diameter (Ø)	11 mm (0.43 in)

Compatibility and OEM Cross-References

Compatible Manufacturer: Yamaha
Outboard Power Range: 300–350 HP
Installation Area: Outboard lower unit
Yamaha OEM Part Number: 6AW-45373-00
Zinc Version: Tecnoseal 01155
Aluminium Version: Tecnoseal 01155AL
Magnesium Version: Tecnoseal 01155MG

Key Features

Designed for compatible Yamaha 300–350 HP outboard motors.
Corresponds to Yamaha OEM part number 6AW-45373-00.
Sacrificial corrosion protection for submerged lower-unit components.
Shaped metal plate with curved profile and two raised sections.
Central fastening hole with 11 mm diameter.
Available in zinc, aluminium and magnesium.
Length: 90 mm.
Width: 93 mm.
Overall height: 65 mm.
Secondary height: 52 mm.
Identical dimensions and mounting geometry for all three versions.

Compatibility Note: Before ordering, verify the Yamaha outboard model, OEM part number 6AW-45373-00 and original anode dimensions. Compare the shaped plate, raised sections and central 11 mm fastening hole with the existing component. Select the appropriate sacrificial anode material according to the engine manufacturer's specifications.