# 21453904 Module | Genuine Volvo Penta Part

## 🔧 Product Description

A genuine electronic module used in the ignition or engine-management system of the assigned Volvo Penta petrol engine.

## ⚙️ Key Features

-   Marine ignition-system electronics
-   Sealed engine-compartment housing
-   Correct OEM connector arrangement
-   Interfaces with ignition and engine-control components
-   Application-specific calibration

## 🔌 Function

The module processes ignition-related inputs and controls the timing or switching required to produce correctly timed spark.

## ⚠️ Common Signs of Failure

-   Engine cranks but has no spark
-   Intermittent misfire
-   Engine stalls when hot
-   Ignition-related fault codes
-   Corroded or heat-damaged connector
-   Irregular ignition timing

## 🛠️ Service Notes

-   Isolate the batteries before unplugging or fitting any module, and never disconnect one with the ignition on or the engine running
-   Before condemning a module, check its supply, its earth and the harness continuity; a poor earth or a chafed lead gives exactly the same symptoms as a dead unit
-   Handle the module by its casing, keep the connector pins clean and dry, and push connectors home squarely until the lock engages — bent or corroded pins cause more trouble than the modules themselves
-   Mount it in the original position and orientation using the original brackets or clips, so it stays clear of heat, moving parts and standing water
-   Many engine and control modules have to be configured or programmed to your particular engine before they will work correctly, so allow for a Volvo Penta dealer with the correct diagnostic equipment where that applies

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   21453904 → Supersedes 3594199

### OEM / Related Numbers

-   3594199 earlier number superseded by this part

## 📦 Condition

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

## Details

- **Price:** 3762.92 AUD
- **Vendor:** Volvo Penta
- **Type:** Ignition & Controls
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 3762.92 AUD | In stock |

## Images

- 21453904 Module | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21453904-module-genuine-volvo-penta)
> Updated: 2026-10-10