---
product_id: 73172723
title: "FX4 Engine Unit"
brand: "fluval"
price: "€ 234.07"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.fi/products/73172723-fx4-engine-unit
store_origin: FI
region: Finland
---

# Optimizes fish tank health Compact 13.97 x 12.7 x 17.78 cm size High-performance motor unit FX4 Engine Unit

**Brand:** fluval
**Price:** € 234.07
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your aquarium’s heart with Fluval FX4 Engine Unit!

## Quick Answers

- **What is this?** FX4 Engine Unit by fluval
- **How much does it cost?** € 234.07 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/73172723-fx4-engine-unit)

## Best For

- fluval enthusiasts

## Why This Product

- Trusted fluval brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable & Reliable:** Crafted with high-quality materials for long-lasting performance and peace of mind.
- • **Precision Engineered:** Compact and lightweight design (980g) fits perfectly for easy installation.
- • **Effortless Maintenance:** No batteries required—plug and play to restore your tank’s pristine environment.
- • **Boosts Aquarium Vitality:** Enhances water flow and filtration to keep your aquatic ecosystem thriving.
- • **Seamless Motor Replacement:** Revive your Fluval FX4 filter’s power instantly without hassle.

## Overview

The Fluval FX4 Engine Unit is a high-quality, compact motor replacement designed to restore and enhance the performance of your Fluval FX4 aquarium filter. Weighing just under 1 kg and sized for easy installation, it improves water circulation and fish well-being, ensuring a healthier aquatic environment without the need for batteries.

## Description

DID Your Motor Kick The Bucket? No problem, this motor replacement unit will return your high performance filter to high performance.

## Features

- Easy to use
- High quality
- Improves the well-being of the tank and fish interior
- Package weight: 0.982 kilograms

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 13.97 x 12.7 x 17.78 cm; 980 g |
| Item model number | A20202 |
| Allergen Information | Nut Free |
| Colour | White |
| Size | X-Large |
| Number of Items | 1 |
| Quantity | 1 |
| Specific Uses | Indoor |
| Batteries required | No |
| Batteries Included | No |
| Item Weight | 980 g |

## Images

![FX4 Engine Unit - Image 1](https://m.media-amazon.com/images/I/71BSItYwA6L.jpg)

## Questions & Answers

**Q: is it operable under 220 volts?**
A: Runs on std 110

**Q: the picture shows fx 6, is this the fx 4?**
A: The picture is incorrect. It was in fact an fx4 motor. Just be aware it does not come with an impeller.

**Q: can it run on 240 w ?**
A: Got me I have 110

**Q: Will it fit fx5?**
A: No

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect replacement
*by A***R on 2 February 2025*

My Fluval FX4 filter motor suddenly stopped working after just over 5 years so rather than purchase a whole new filter, I was able to get this and save myself somewhere between £100-200.You get the unit with mains plug and a replacement rubber ‘O’ ring. There was another review complaining about not getting any screws (which you don’t) but as you should already have them from the existing unit so I don’t see this as a problem.If I can get another 5 years out of this motor, I will be happy.One recommendation though, if you haven’t replaced the impeller in more than a year I would suggest getting a new one. The maintenance kit is often cheaper than getting just the impeller on its own so worth considering.

### ⭐⭐⭐⭐ Easy fix. Motor is good quality.
*by J***. on 26 January 2025*

Arrived a day earlier than expected. Simply replaced the impeller and bushes from the old motor and installed. FX4 working perfectly. Saved my fish.

### ⭐ Unimpressed
*by N***A on 31 May 2024*

Arrived , fitted it and didn't work , not happy

## Frequently Bought Together

- Fluval FX4 Motor Unit
- Fluval FX4 Service Kit, Aquarium Canister Filter Maintenance Kit

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**Shop now:** [https://www.desertcart.fi/products/73172723-fx4-engine-unit](https://www.desertcart.fi/products/73172723-fx4-engine-unit)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-10*