# 23009950 Relay Unit | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta relay unit from the Other Electrical Equipment group, weighing 0.636 kg and listed for 25 D series engine applications.

## 🚤 Compatibility

-   **Engine Family:** D
-   **HP Range:** 175 HP

Full model list at the end of this description.

## ⚙️ Key Features

-   Relay unit, Other Electrical Equipment group
-   0.636 kg
-   Listed for 25 D series engine applications

## 🔌 Function

Switches a high current circuit under the control of a low current signal, so a small switch or output can operate a large load.

## ⚠️ Common Signs of Failure

-   Relay clicking but the load not operating
-   No click at all when the circuit is energised
-   Contacts found burnt, pitted or welded together on strip-down
-   Burnt smell or a melted, distorted housing
-   Intermittent starting or accessory operation that improves when the relay is tapped

## 🛠️ Service Notes

-   Check the control signal, the supply and the earth at the relay before renewing it
-   Find out why a relay burnt out - a shorted or stalling load will destroy the replacement as well
-   Isolate the batteries before removing or refitting the unit

## 📦 Condition

-   Genuine Volvo Penta part
-   Brand new
-   Supplied in original or equivalent packaging

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta D13C4-B MH, D13C1-B MH, D13C1-A MH, D13C2-A MH, D13C1-B MG, D13C3-B MG, D13C2-B MG, D13C4-B MG, D13C5-A MP, D13C2-A MG, D13C1-A MG, D13C3-B MH
-   Volvo Penta D16C1-E MG, D16C1-F MG, D16C2-E MG, D16C2-F MG, D16C1-E MH, D16C1-F MH, D16C2-E MH, D16C2-F MH
-   Volvo Penta D8A5-A MH, D8A6-A MH, D8A5-A MG, D8A6-A MG
-   Volvo Penta D4-175 VG

## Details

- **Price:** 1254.89 AUD
- **Vendor:** Volvo Penta
- **Type:** Electrical & Wiring
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1254.89 AUD | In stock |

## Images

- 23009950 Relay Unit | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/23009950-relay-unit-genuine-volvo-penta)
> Updated: 2026-09-22