# 3812591 Control Unit | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta control unit supplied as the DCU 305 R2 prop kit, from the Ignition and Control Systems group, weighing 3.372 kg and listed for 3 applications on TAMD series engines. Control unit 3812590 is the DCU305R2 auxiliary listing.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAMD74A
-   Volvo Penta TAMD165A
-   Volvo Penta TAMD165C

-   **Engine Family:** TAMD

## ⚙️ Key Features

-   DCU 305 R2, supplied as a prop kit
-   3.372 kg
-   3 applications on TAMD series engines
-   The auxiliary listing is 3812590

## 📋 Kit Contents

-   DCU 305 R2, Prop kit

## 🔌 Function

Provides the display and control interface for the engine, showing readings and passing operator commands to the engine's control system.

## ⚠️ Common Signs of Failure

-   Blank, dim or flickering display
-   Buttons unresponsive or sticking
-   No communication with the engine, or a reported bus fault
-   Water ingress or corrosion behind the screen
-   Spurious alarms, or readings that do not match the engine

## 🛠️ Service Notes

-   Listed as a kit rather than a bare display, so check the contents against what the installation needs
-   Check the harness, connectors and supply voltage before condemning a control unit
-   The auxiliary version 3812590 is a separate listing and not a substitute

## 📦 Condition

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

## Details

- **Price:** 20147.94 AUD
- **Vendor:** Volvo Penta
- **Type:** Ignition & Controls
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 20147.94 AUD | In stock |

## Images

- 3812591 Control Unit | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3812591-control-unit-genuine-volvo-penta)
> Updated: 2026-09-19