---
product_id: 475899381
title: "Marine Thermostat Kit 803061T1 18-3569 Replacement for Mercury Mariner L3 L4 70 75 80 90 100 115 125"
brand: "habiiid"
price: "€ 50.80"
currency: EUR
in_stock: true
url: https://www.desertcart.sk/products/475899381-marine-thermostat-kit-803061t1-18-3569-replacement-for-mercury-mariner
store_origin: SK
region: Slovakia
---

# Durable Design Direct Replacement Optimal Temp Control Marine Thermostat Kit 803061T1 18-3569 Replacement for Mercury Mariner L3 L4 70 75 80 90 100 115 125

**Brand:** habiiid
**Price:** € 50.80
**Availability:** ✅ In Stock

## Summary

> 🚤 Keep Your Engine Cool and Your Adventures Hot!

## Quick Answers

- **What is this?** Marine Thermostat Kit 803061T1 18-3569 Replacement for Mercury Mariner L3 L4 70 75 80 90 100 115 125 by habiiid
- **How much does it cost?** € 50.80 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/475899381-marine-thermostat-kit-803061t1-18-3569-replacement-for-mercury-mariner)

## Best For

- habiiid enthusiasts

## Why This Product

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

## Key Features

- • **💪 Built to Last:** Crafted from high-quality materials ensuring durability and long service life.
- • **🌍 Global Quality:** Manufactured in China by HABIIID, a trusted name in marine parts.
- • **📏 Compact & Lightweight:** Weighs only 3.52 ounces, with dimensions of 7.99 x 3.98 x 1.22 inches for easy installation.
- • **🔧 Seamless Compatibility:** Perfectly replaces original Mercury/Mariner thermostats for models 70-125 HP.
- • **🌡️ Precision Performance:** Maintains optimal engine temperature at 50°C/120°F for peak efficiency.

## Overview

The Marine Thermostat Kit 803061T1 18-3569 is a high-quality aftermarket replacement designed for Mercury/Mariner 70-125 HP 2-cycle outboards. It ensures optimal engine performance by maintaining a precise temperature of 50°C/120°F, while its durable construction promises longevity and reliability on the water.

## Description

Marine Thermostat Kit 803061T1 18-3569 Replacement for Mercury Mariner L3 L4 70 75 80 90 100 115 125

## Features

- Replaces Thermostat Gasket Part Number 18-3569
- It's Aftermarket Thermostat Kit, Direct Replacement for Your Original One
- The Thermostat is 50C°/ 120℉
- Replacement for various Mercury/Mariner 70-125 HP 2 cycle outboards
- Made of high quality for good durability & long working service

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | HABIIID |
| Brand | HABIIID |
| Model | Thermostat Kit |
| Item Weight | 3.52 ounces |
| Package Dimensions | 7.99 x 3.98 x 1.22 inches |
| Country of Origin | China |
| Item model number | 803061T1 18-3569 |
| Exterior | Chrome |
| Manufacturer Part Number | 18-3569 |

## Images

![Marine Thermostat Kit 803061T1 18-3569 Replacement for Mercury Mariner L3 L4 70 75 80 90 100 115 125 - Image 1](https://m.media-amazon.com/images/I/51LD0D0o08L.jpg)
![Marine Thermostat Kit 803061T1 18-3569 Replacement for Mercury Mariner L3 L4 70 75 80 90 100 115 125 - Image 2](https://m.media-amazon.com/images/I/51UEVE1aDOL.jpg)
![Marine Thermostat Kit 803061T1 18-3569 Replacement for Mercury Mariner L3 L4 70 75 80 90 100 115 125 - Image 3](https://m.media-amazon.com/images/I/51OCopVjcvL.jpg)
![Marine Thermostat Kit 803061T1 18-3569 Replacement for Mercury Mariner L3 L4 70 75 80 90 100 115 125 - Image 4](https://m.media-amazon.com/images/I/51sAIoDU4CL.jpg)

## Frequently Bought Together

- HABIIID Marine Thermostat Kit 803061T1 18-3569 Replacement for Mercury Mariner L3 L4 70 75 80 90 100 115 125
- Quicksilver Poppet Valve Kit
- Quicksilver by Mercury Marine 8M0100526 Water Pump Repair Kit for Mercury or Mariner Outboards and MerCruiser Sterndrives

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-01-24*