---
product_id: 378969803
title: "8M6000359 Float Fuel Switch Sensor for Mercury Mariner Outboard Motor 75 to 300 HP Tank"
brand: "uanofcn"
price: "€ 27.06"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.ie/products/378969803-8m6000359-float-fuel-switch-sensor-for-mercury-mariner-outboard-motor
store_origin: IE
region: Ireland
---

# Precision fuel level sensing Fits 75-300 HP Mercury motors OE-spec plastic build 8M6000359 Float Fuel Switch Sensor for Mercury Mariner Outboard Motor 75 to 300 HP Tank

**Brand:** uanofcn
**Price:** € 27.06
**Availability:** ✅ In Stock

## Summary

> ⛵ Stay fueled, stay ahead — the smart sensor for serious boaters!

## Quick Answers

- **What is this?** 8M6000359 Float Fuel Switch Sensor for Mercury Mariner Outboard Motor 75 to 300 HP Tank by uanofcn
- **How much does it cost?** € 27.06 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/378969803-8m6000359-float-fuel-switch-sensor-for-mercury-mariner-outboard-motor)

## Best For

- uanofcn enthusiasts

## Why This Product

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

## Key Features

- • **Broad Power Range Support:** Optimized for Mercury 75-115 HP EFI and Verado 135-300 HP 4-stroke outboards—one sensor, multiple engines.
- • **Compact & Lightweight Design:** At just 2.95 x 1.38 x 2.2 inches and 24 grams, it integrates effortlessly without adding bulk.
- • **Durable OE-Grade Construction:** Crafted from high-quality plastic with machined exterior for long-lasting, reliable performance.
- • **Seamless Mercury Compatibility:** Direct replacement for Mercury Mariner 8M6000359 and related OEM parts ensures flawless fit and function.
- • **Automatic Float Switch Operation:** Smart automatic mode guarantees precise fuel level monitoring, preventing surprises on the water.

## Overview

The 8M6000359 Float Fuel Switch Sensor by UANOFCN is a precision-engineered replacement part designed specifically for Mercury Mariner and Race Outboard Motors ranging from 75 to 300 HP. Built to OE specifications with durable plastic materials, this compact sensor ensures accurate fuel level detection and seamless integration with your engine’s fuel system, enhancing reliability and performance on every voyage.

## Description

Full description not available

## Features

- This Fuel Tank Float is for Mercury Mariner and Race Outboards Engines
- Replaces Mercury Mariner 8M6000359, 8M0007943, 880596524, 880596522, 880596504
- Used on Mercury 75-115 HP EFI and Verado 135-300 HP 4 stroke Outboard Motors
- Package Contains: 1pc Float Fuel Switch Sensor
- If you are not sure if the part fits your engine, please contact us or send us your engine model and we will get back to you as soon as possible

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | UANOFCN |
| Fit Type | Vehicle Specific Fit |
| Vehicle Service Type | PWC |
| Item dimensions L x W x H | 2.95 x 1.38 x 2.2 inches |
| Material | Plastic |
| Item Weight | 24 Grams |
| Style | Float Switch |
| Specification Met | OE |
| Auto Part Position | Inside |
| Outlet Connection Type | Barb |
| Body Material | Plastic |
| Inlet Connection Type | Hose Barb |
| Gas Type | Gasoline |
| Mounting Type | Tank Mount |
| Operation Mode | Automatic |
| Product Grade | Replacement Part |
| Automotive Fit Type | Vehicle Specific Fit |
| OEM Part Number | Mercury Mariner 880596504, Mercury Mariner 880596522, Mercury Mariner 880596524, Mercury Mariner 8M0007943, Mercury Mariner 8M6000359 |
| Manufacturer | UANOFCN |
| UPC | 788934570430 |
| Model | Float Fuel Switch Sensor |
| Item Weight | 0.847 ounces |
| Product Dimensions | 2.95 x 1.38 x 2.2 inches |
| Item model number | 8M6000359 |
| Exterior | Machined |
| Manufacturer Part Number | 8M6000359 |
| Special Features | Fuel float sensor, Rebuild the Fuel Module |

## Product Details

- **Brand:** UANOFCN
- **Fit Type:** Vehicle Specific Fit
- **Vehicle Service Type:** PWC
- **Item dimensions L x W x H:** 2.95 x 1.38 x 2.2 inches
- **Material:** Plastic

## Images

![8M6000359 Float Fuel Switch Sensor for Mercury Mariner Outboard Motor 75 to 300 HP Tank - Image 1](https://m.media-amazon.com/images/I/617YnNJ40rL.jpg)
![8M6000359 Float Fuel Switch Sensor for Mercury Mariner Outboard Motor 75 to 300 HP Tank - Image 2](https://m.media-amazon.com/images/I/51flbsc7xFL.jpg)
![8M6000359 Float Fuel Switch Sensor for Mercury Mariner Outboard Motor 75 to 300 HP Tank - Image 3](https://m.media-amazon.com/images/I/51dvmY-CPJL.jpg)
![8M6000359 Float Fuel Switch Sensor for Mercury Mariner Outboard Motor 75 to 300 HP Tank - Image 4](https://m.media-amazon.com/images/I/51VRTRYu20L.jpg)
![8M6000359 Float Fuel Switch Sensor for Mercury Mariner Outboard Motor 75 to 300 HP Tank - Image 5](https://m.media-amazon.com/images/I/71bV6yzui1L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect Replacement
*by J***E on August 14, 2024*

This float switch was a perfect replacement on our Mercury 90 Four Stroke. Solved the fuel delivery problems we were experiencing at a reasonable price.

### ⭐⭐⭐⭐⭐ Inexpensive
*by K***E on July 26, 2024*

$100 less than anyone else looks to exactly the same

### ⭐⭐⭐⭐⭐ A simple fix
*by D***N on September 6, 2023*

This is exactly what I needed. I watched a utube video and then I ordered the float . Part showed up in just a few days. Install went great and took the boat out for a trial run , 35 miles and not even a hiccup.

## Frequently Bought Together

- Uanofcn 8M6000359 Float Fuel Switch Sensor for Mercury Mariner Outboard Motor 75 to 300 HP Tank
- REPLACEMENTKITS.COM Brand Fuel Supply Module Seal Kit Compatible with Mercury 75-350 HP 2003 & Up ONLY Some Models Replaces 26-880596A01
- QFS OEM Fuel Pressure Regulator Replacement for Mariner/Mercruiser/Mercury 135, 150, 175, 200, 7F75413ZD, 7F80413ZB, 7F80413ZF, 7F90413ZD, 2006-2007, OEM 880596503 892681 880596T58

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-21*