---
product_id: 464128586
title: "MITZONE Upgrade Aluminum Thermostat Assembly with Housing Compatible with BMW E46 E39 E60 E83 E53 E85 325i 330i 525i 530i X5 X3 Z3 Z4 Replace 11537509227"
brand: "mitzone"
price: "$77.09"
currency: USD
in_stock: true
reviews_count: 9
category: "Mitzone"
url: https://www.desertcart.us/products/464128586-mitzone-upgrade-aluminum-thermostat-assembly-with-housing-compatible-with-bmw
store_origin: US
region: United States of America
---

# Fits 15+ BMW Models (E46, E39, E60, X5, Z4 & More) Complete Assembly: Thermostat + Housing + Gasket 100% Aluminum Housing for Ultimate Durability MITZONE Upgrade Aluminum Thermostat Assembly with Housing Compatible with BMW E46 E39 E60 E83 E53 E85 325i 330i 525i 530i X5 X3 Z3 Z4 Replace 11537509227

**Brand:** mitzone
**Price:** $77.09
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade your BMW’s heartbeat with MITZONE’s precision thermostat assembly! 🏁

## Quick Answers

- **What is this?** MITZONE Upgrade Aluminum Thermostat Assembly with Housing Compatible with BMW E46 E39 E60 E83 E53 E85 325i 330i 525i 530i X5 X3 Z3 Z4 Replace 11537509227 by mitzone
- **How much does it cost?** $77.09 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/464128586-mitzone-upgrade-aluminum-thermostat-assembly-with-housing-compatible-with-bmw)

## Best For

- mitzone enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Premium aluminum construction resists corrosion and heat for long-term reliability.
- • **Precision Fitment:** Engineered specifically for a wide range of BMW models from 1999 to 2006, ensuring perfect compatibility.
- • **All-in-One Upgrade:** Includes thermostat, housing, and gasket—no extra parts needed for a seamless install.
- • **Hassle-Free Support:** Dedicated customer service ready to assist with fitment questions, so you never buy in doubt.
- • **Trusted Performance:** Highly rated by BMW enthusiasts for consistent temperature regulation and durability.

## Overview

The MITZONE Upgrade Aluminum Thermostat Assembly is a robust, all-in-one cooling system replacement designed for BMW models from 1999 to 2006. Crafted from corrosion-resistant aluminum, it combines thermostat, housing, and gasket into a single durable unit, ensuring optimal engine temperature control and a perfect OEM fit. Backed by strong user reviews and responsive customer support, it’s the smart choice for BMW owners seeking reliability and performance.

## Description

Buy MITZONE Upgrade Aluminum Thermostat Assembly with Housing Compatible with BMW E46 E39 E60 E83 E53 E85 325i 330i 525i 530i X5 X3 Z3 Z4 Replace 11537509227: Thermostat Housings - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Good part - Looks solid and fits
Review: Works great a year later - Thermostat is still working almost a year later so I defiantly would recommend this product and will buy another part

## Features

- Thermostat Assembly with Housing Compatible with BMW: 1999-2000 323i, 2000 323Ci , 2001-2006 325Ci , 2001-2005 325i , 2001-2005 325xi , 2000 328Ci , 1999-2000 328i , 2001-2006 330Ci , 2001-2005 330i , 2001-2005 330xi , 2001-2005 525i , 1999-2000 528i , 2001-2005 530i , 2004-2006 X3 , 1999-2002 Z3 , 2003-2005 Z4 , 2001-2006 X5
- Replace Number: 11537509227
- Upgraded replacement: This integrated coolant thermostat housing assembly is made of metal/aluminum to increase durability
- Complete repair comes with thermostat housing, thermostat, and gasket
- Purchase with confidence: If you are not sure about the vehicle fitment or any questions or concerns, please message us via desertcart. We will resolve the issue to meet your satisfaction

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09YRBZF19 |
| Best Sellers Rank | #48,241 in Automotive ( See Top 100 in Automotive ) #39 in Automotive Replacement Engine Thermostat Housings |
| Brand | MITZONE |
| Customer Reviews | 4.1 4.1 out of 5 stars (172) |
| Date First Available | April 25, 2022 |
| Exterior | Aluminum |
| Item Weight | 1.25 pounds |
| Manufacturer | MITZONE |
| Manufacturer Part Number | 001-1038 |
| Model | Thermostat Assembly |
| OEM Part Number | 11537509227 |
| Package Dimensions | 7.52 x 5.87 x 4.65 inches |
| Position | Inside |

## Images

![MITZONE Upgrade Aluminum Thermostat Assembly with Housing Compatible with BMW E46 E39 E60 E83 E53 E85 325i 330i 525i 530i X5 X3 Z3 Z4 Replace 11537509227 - Image 1](https://m.media-amazon.com/images/I/61PGkUkLTQL.jpg)

## Questions & Answers

**Q: How long is the product covered for repairs?**
A: Covered for the first year.

**Q: What are the key things to keep during installation?**
A: Ensure gaskets between parts are securely installed. If you prefer instruction, please let us know.

**Q: Does the product come with instruction?**
A: This product is relatively simple to install and does not come with instructions. If you prefer instruction, please let us know.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good part
*by F***E on January 4, 2026*

Looks solid and fits

### ⭐⭐⭐⭐⭐ Works great a year later
*by J***G on March 20, 2026*

Thermostat is still working almost a year later so I defiantly would recommend this product and will buy another part

### ⭐⭐⭐⭐ Fits, functions and looks good.
*by T***. on February 7, 2025*

Well built. Had very little uneven surface at sealing area. Looks good and functions well. Great replacement part for 2005 BMW 325i. Recommend purchasing. Price is most excellent too.

## Frequently Bought Together

- MITZONE Upgrade Aluminum Thermostat Assembly with Housing Compatible with BMW E46 E39 E60 E83 E53 E85 325i 330i 525i 530i X5 X3 Z3 Z4 Replace 11537509227
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- NewYall Upper and Lower Radiator Coolant Hose Kit for BMW E46 328i 328Ci 330Ci 330i 330xi 325i 325xi 325Ci 1999-2006 Cooling Water Pipe 17127510952 11531436408

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**Shop now:** [https://www.desertcart.us/products/464128586-mitzone-upgrade-aluminum-thermostat-assembly-with-housing-compatible-with-bmw](https://www.desertcart.us/products/464128586-mitzone-upgrade-aluminum-thermostat-assembly-with-housing-compatible-with-bmw)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-19*