---
product_id: 486032175
title: "Aluminum Water Hose Fitting Upgrade Fit for BMW 1 3 5 6 7 Z4 (Engine N52 N53 N54 and N51 3.0-litre),Replaces# 11537541992 11537544638 Engine Coolant Hose Flange"
brand: "vastauto"
price: "¥2812"
currency: JPY
in_stock: true
reviews_count: 13
category: "Vastauto"
url: https://www.desertcart.jp/products/486032175-aluminum-water-hose-fitting-upgrade-fit-for-bmw-1-3
store_origin: JP
region: Japan
---

# 6061 T6511 Aluminum Grade Fits BMW N20/N52/N53/N54/N55 Engines OEM Standard Tested & Certified Aluminum Water Hose Fitting Upgrade Fit for BMW 1 3 5 6 7 Z4 (Engine N52 N53 N54 and N51 3.0-litre),Replaces# 11537541992 11537544638 Engine Coolant Hose Flange

**Brand:** vastauto
**Price:** ¥2812
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate your BMW’s cooling game with precision aluminum power!

## Quick Answers

- **What is this?** Aluminum Water Hose Fitting Upgrade Fit for BMW 1 3 5 6 7 Z4 (Engine N52 N53 N54 and N51 3.0-litre),Replaces# 11537541992 11537544638 Engine Coolant Hose Flange by vastauto
- **How much does it cost?** ¥2812 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/486032175-aluminum-water-hose-fitting-upgrade-fit-for-bmw-1-3)

## Best For

- vastauto enthusiasts

## Why This Product

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

## Key Features

- • **OEM Quality Assurance:** Tested and certified to meet or exceed original equipment manufacturer standards, guaranteeing reliability and peace of mind.
- • **Seamless Compatibility:** Perfectly fits a wide range of BMW 3.0L and 2.0L turbo engines (N20, N52, N53, N54, N55) ensuring hassle-free installation and OEM part replacement.
- • **Complete Replacement Kit:** Includes a replacement O-ring and fits exact OEM part numbers 11537541992 & 11537544638, making your upgrade seamless and worry-free.
- • **Precision Engineered Aluminum:** Upgrade your BMW’s cooling system with durable, high-strength 6061 T6511 aluminum for unmatched longevity and performance.
- • **Enhanced Durability Over Plastic:** Say goodbye to fragile plastic fittings—this aluminum upgrade resists wear and heat, reducing maintenance frequency and risk of failure.

## Overview

This premium aluminum water hose fitting is engineered from high-strength 6061 T6511 aluminum, designed to replace OEM parts 11537541992 and 11537544638. Compatible with BMW engines N20, N52, N53, N54, and N55, it offers superior durability and OEM-level quality assurance, ensuring a reliable upgrade for your vehicle’s engine cooling system.

## Description

Advantage: Made of High Quality Material. Tested & Certified to Meet or Exceed OEM Quality Standards. Replace Part Number : 11537541992, 11537544638 Notice :Fits N20, N52, N53, N54 and N55 Engines. Compatible : 2006 330i/330xi 2008 528xi/535xi 2007-2016 328i/335i 2007-2008 328xi/335xi 2011-2013 335is 2014-2016 428i/435i/520i 2006-2007 525i/525xi/530i/530xi 2008-2016 528i/535i 2010-2017 535i GT 2012-2019 640i 2011-2015 740i/740Li 2013-2015 ACTIVEHYBRID 3/ACTIVEHYBRID 7 2012-2016 ACTIVEHYBRID 5 2016-2019 M2 2014-2016 M235i 2012-2015 X1 2007-2017 X3 2015-2018 X4 2007-2018 X5 2008-2019 X6 2006-2016 Z4 Warranty: The Automatic Transmission Filter come with 12 Months Warranty. hassle-free Return and Refund Policy. Please Buy it with Your Confidence.

Review: FRIENDLY REMINDER Don't overtighten the bolts - MUCH better than the cheap plastic OEM part, Just a reminder though, these thread into an aluminum block so be very careful to start them finger tight first, then evenly tighten both bolts to push the fitting into the chamber. If you don't, it will slightly misalign and you run the risk of stripping the threads. The one comes with the replacement o ring, and be sure to get some antifreeze on that seal prior to attempting to push it into the chamber. IT IS A TIGHT FIT, but that's what you want, so just be careful. You might also want an extra hose clamp on hand, as the one that came with this began to bend as it got tight, so I had to replace it for peace of mind. Overall, great product though.
Review: It’s the right part and it’s not defective - It fit and works great

## Features

- 【Compatible】This Water Hose Fitting Fits 3.0L Twin-Turbo N54 (3.0-Litre Twin Turbo) Motors 335i, 335xi, 135i and the N53 (3.0-Litre Non-Turbo) 2006 - 2010 325i, 330i, 525i, 525xi, 528i, 528xi, 530i, 530xi and the N20 (2.0-Litre Turbo) Z4 2013-, and the N52 X3.This Fitting also Suitable for N55 Motors.Please Refer to the Detailed Description or Use the Adaptation Table.
- 【Replaces#】11537541992, 11537544638.Please Check the OEM Part Number and Make Sure Your Part Number Matches this Part Number Before Buying!
- 【Function】Upgraded Water Hose Fitting is Made from High Strength Aluminum,Grade 6061 T6511,Durable and Wear-Resistant.
- 【Premium Quality】100% Brand New.Made of High Quality Material. Tested & Certified to Meet or Exceed OEM Quality Standards.All Products are 100% Tested Before Leaving the Factory.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BFCQQKXQ |
| Best Sellers Rank | #18,344 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Connector Hoses |
| Brand | VASTAUTO |
| Color | Silver |
| Connector Type | Flange |
| Customer Reviews | 4.2 4.2 out of 5 stars (438) |
| Date First Available | September 15, 2022 |
| Exterior Finish | Aluminum |
| Item Weight | 2.64 ounces |
| Item model number | 11537541992 |
| Manufacturer | VASTAUTO |
| Manufacturer Part Number | VA-11537544638-2VA |
| Material | Aluminum |
| Number of Pieces | 1 |
| Package Dimensions | 2.95 x 2.83 x 2.6 inches |
| Set Name | 1 |
| Thread Type | BSP |

## Product Details

- **Brand:** VASTAUTO
- **Color:** Silver
- **Connector Type:** Flange
- **Exterior Finish:** Aluminum
- **Item Weight:** 0.08 Kilograms
- **Manufacturer:** VASTAUTO
- **Material:** Aluminum
- **Number of Pieces:** 1
- **Set Name:** 1
- **Thread Type:** BSP

## Images

![Aluminum Water Hose Fitting Upgrade Fit for BMW 1 3 5 6 7 Z4 (Engine N52 N53 N54 and N51 3.0-litre),Replaces# 11537541992 11537544638 Engine Coolant Hose Flange - Image 1](https://m.media-amazon.com/images/I/61QlLFiRquL.jpg)
![Aluminum Water Hose Fitting Upgrade Fit for BMW 1 3 5 6 7 Z4 (Engine N52 N53 N54 and N51 3.0-litre),Replaces# 11537541992 11537544638 Engine Coolant Hose Flange - Image 2](https://m.media-amazon.com/images/I/61VxETEvIKL.jpg)
![Aluminum Water Hose Fitting Upgrade Fit for BMW 1 3 5 6 7 Z4 (Engine N52 N53 N54 and N51 3.0-litre),Replaces# 11537541992 11537544638 Engine Coolant Hose Flange - Image 3](https://m.media-amazon.com/images/I/61EnHEPJo6L.jpg)
![Aluminum Water Hose Fitting Upgrade Fit for BMW 1 3 5 6 7 Z4 (Engine N52 N53 N54 and N51 3.0-litre),Replaces# 11537541992 11537544638 Engine Coolant Hose Flange - Image 4](https://m.media-amazon.com/images/I/619BeEps67L.jpg)
![Aluminum Water Hose Fitting Upgrade Fit for BMW 1 3 5 6 7 Z4 (Engine N52 N53 N54 and N51 3.0-litre),Replaces# 11537541992 11537544638 Engine Coolant Hose Flange - Image 5](https://m.media-amazon.com/images/I/61IxGvERPuL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ FRIENDLY REMINDER Don't overtighten the bolts
*by B***N on January 9, 2026*

MUCH better than the cheap plastic OEM part, Just a reminder though, these thread into an aluminum block so be very careful to start them finger tight first, then evenly tighten both bolts to push the fitting into the chamber. If you don't, it will slightly misalign and you run the risk of stripping the threads. The one comes with the replacement o ring, and be sure to get some antifreeze on that seal prior to attempting to push it into the chamber. IT IS A TIGHT FIT, but that's what you want, so just be careful. You might also want an extra hose clamp on hand, as the one that came with this began to bend as it got tight, so I had to replace it for peace of mind. Overall, great product though.

### ⭐⭐⭐⭐⭐ It’s the right part and it’s not defective
*by C***T on February 3, 2026*

It fit and works great

### ⭐⭐⭐⭐⭐ May not fit correctly or is difficult to fit on.
*by B***G on January 9, 2026*

Would not advise buying. It wouldn’t fit with the o ring nor with the old one, it would only go in with no o ring. So I had to put back my old hinge and o ring. Edit: I had to add coolant to the O ring, along with somewhat forcing/prying it in in order to get it to fit flush.

## Frequently Bought Together

- VASTAUTO Aluminum Water Hose Fitting Upgrade Fit for BMW 1 3 5 6 7 Z4 (Engine N52 N53 N54 and N51 3.0-litre),Replaces# 11537541992 11537544638 Engine Coolant Hose Flange
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- Jaronx for BMW Water Coolant Hose Pipe Thermostat to Front of Engine 11 53 7 545 890,Engine Coolant Hose for BMW 1 Series E87/E88/E82,3 Series E90/E91/E92/E93,5 Series E60,X1 E84,Z4 E85/E86

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-09*