Bar Anode Volvo Duo Prop New - Code: 5120131 - Motomarine

Volvo Duo Prop New Bar Anode Motomarine – code 5120131

The’Volvo Duo Prop New bar anode Motomarine (code 5120131) is a spare part dedicated to the galvanic protection of metal parts exposed in a marine environment. In the nautical field, the use of anodes is a fundamental maintenance practice to help limit the effects of electrolytic corrosion on components subject to immersion and contact with salt or brackish water.

Material

• Material: Dimensions and weight

Codes and identification

• Product code (Supplier product code): 5120131
• Supplier: Motomarine S.R.L.

Declared dimensions

• l (mm): 118
• a (mm): 37
• b (mm): 101
• c (mm): 85
• h (mm): 25
• i (mm): 86
• Ø (mm): 9,50
• Ø1 (mm): 15

Note: before purchase it is advisable to compare the measurements with the removed anode (or with the mounting seat) to avoid incompatibilities due to installation variants or group updates.

Typical applications in the nautical field

Bar anodes are commonly used on propulsion units and immersed metal components, where galvanic protection is entrusted to a “sacrificial” element that wears out over time. This model is identified as Volvo Duo Prop New: when selecting a spare part, the correct identification of the unit and code is an essential step.

When to consider replacement

In routine maintenance, the replacement of the anode is considered when the component is visibly worn or no longer able to perform its function. Even in case of storage, hauling, or interventions on the propeller and lower unit, it is good practice to check the condition of the anodes and plan for possible replacement.

Usage contexts

• Periodic maintenance of components exposed to water.
• Restoration after wear of the installed anode.
• Inspection interventions during hauling or work on transmission/propulsion.

Usage and installation notes

Installing an anode requires attention to proper electrical contact with the metal part to be protected. In general, it is important that the support surfaces are clean and that the fastening is appropriate for the intended location, avoiding interference or forced assemblies.

General indications

• Verify that the removed anode matches in shape and measurements (l, a, b, c, h, i and diameters Ø/Ø1).
• Check the condition of the mounting seat and fastening points.
• Ensure correct contact between the anode and the metal component (absence of insulating layers).
• After installation, include the anode in the periodic inspection plan.

Important notes

Operating conditions (type of water, time spent in water, stray currents, system configuration) can affect the anode's consumption rate. For doubts about material choice or compatibility with your configuration, it is advisable to refer to the group documentation or a qualified technician.

FAQ – Frequently Asked Questions

What material is the Motomarine 5120131 bar anode made of?

The anode is made of zinc, as indicated in the product sheet.

What is the spare part code for this Volvo Duo Prop New bar anode?

The product code (Supplier product code) is 5120131.

What are the main sizes available for comparison?

They are indicated: l 118 mm, a 37 mm, b 101 mm, c 85 mm, h 25 mm, i 86 mm, Ø 9.50 mm and Ø1 15 mm.

How can I check if it is compatible with my installation?

Compare the shape and dimensions of the removed anode with the indicated measurements and check the mounting location. In case of doubts, refer to the group documentation or a technician.

When is it advisable to replace a bar anode?

Generally when it is worn or degraded, or during periodic maintenance checks during hauling or interventions on the propulsion unit.