# 21415866 Extension Cable | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta Water-in-Fuel Sensor Extension Cable - 3 m - Part Number: 21415866

  

Three-metre extension lead for the water-in-fuel sensor used with remotely mounted fuel-filter and separator installations. It preserves the sealed electrical connection between the filter sensor and engine harness where the standard lead does not reach.

  

⚙️ Key Features

  

• Genuine Volvo Penta sensor extension cable

• Nominal length: 3 metres

• Designed for water-in-fuel sensor circuits

• Marine-sealed connectors and OEM pin assignment

• Suitable for remote filter installation without modifying the engine harness

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 21415866 (current listed OEM reference)

  

OEM / Related Numbers:

  

• Used with water-in-fuel sensor and remote fuel-filter assemblies

• 21415883 - longer extension-cable option

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Volvo Penta remote fuel-filter and water-in-fuel monitoring systems

  

Typically suits:

  

• Engine models:

• D9A2L MH remote fuel-filter installations

• Compatible Volvo Penta engines using the same water-in-fuel sensor connector

  

• HP Range: Engine-rating dependent

• Engine Type: Electronically monitored Volvo Penta marine diesel fuel system

• Year Range: Installation and harness-generation controlled

  

🔌 Function

  

Extends the water-in-fuel sensor circuit so the engine control system can monitor a remotely located separator bowl.

  

Common signs of failure:

  

• Water-in-fuel warning absent despite water in the bowl

• Intermittent or permanent sensor-circuit fault

• Corroded or water-damaged connector pins

• Chafed cable or broken conductors

• False warning when the cable is moved

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 180.92 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 180.92 AUD | In stock |

## Images

- 21415866 Extension Cable | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21415866-extension-cable-genuine-volvo-penta)
> Updated: 2026-08-03