---
product_id: 154927786
title: "labwork Cast Aluminum Coolant Flange Upgrade Kit Replacement for Golf Mk4 Jetta Mk4 1.8T TT 2000-2005 1J0121087E"
brand: "labwork"
price: "584 DH"
currency: MAD
in_stock: true
reviews_count: 7
url: https://www.desertcart.ma/products/154927786-labwork-cast-aluminum-coolant-flange-upgrade-kit-replacement-for-golf
store_origin: MA
region: Morocco
---

# Optimized coolant flow for superior engine cooling Precision fit for Golf Mk4/Jetta Mk4/TT 1.8T (2000-2005) Tool-free, hassle-free installation labwork Cast Aluminum Coolant Flange Upgrade Kit Replacement for Golf Mk4 Jetta Mk4 1.8T TT 2000-2005 1J0121087E

**Brand:** labwork
**Price:** 584 DH
**Availability:** ✅ In Stock

## Summary

> ⚡ Upgrade your ride’s cooling game—because overheating is so last season!

## Quick Answers

- **What is this?** labwork Cast Aluminum Coolant Flange Upgrade Kit Replacement for Golf Mk4 Jetta Mk4 1.8T TT 2000-2005 1J0121087E by labwork
- **How much does it cost?** 584 DH with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/154927786-labwork-cast-aluminum-coolant-flange-upgrade-kit-replacement-for-golf)

## Best For

- labwork enthusiasts

## Why This Product

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

## Key Features

- • **Complete Upgrade Kit:** Includes flange, coolant T-joint, thermostat housing cover, O-rings, screws, and washers—everything you need in one package.
- • **Effortless Installation:** Designed for quick, tool-light setup—get back on the road faster without special equipment.
- • **Perfect OEM Compatibility:** Seamlessly replaces multiple part numbers for Golf Mk4, Jetta Mk4, and TT models (2000-2005).
- • **Durable Cast Aluminum Build:** Premium material ensures long-lasting performance and resistance to wear under high temperatures.
- • **Enhanced Cooling Efficiency:** Engineered to optimize coolant flow through the water pump, reducing overheating risks.

## Overview

The labwork Cast Aluminum Coolant Flange Upgrade Kit is a direct replacement for Golf Mk4, Jetta Mk4, and TT 1.8T models from 2000-2005. Crafted from durable cast aluminum, this kit enhances coolant flow through the water pump, improving engine cooling efficiency. It includes all necessary components for a straightforward installation using conventional tools, making it an essential upgrade for maintaining optimal engine performance and preventing overheating.

## Description

Full description not available

## Features

- Fitment: Replacement for Golf Mk4 1.8T 2000-2005, replacement for Jetta Mk4 1.8T 2000-2005, replacement for TT 2000-2002
- Replacement Part number: 06A121121C, 06A121121F, 1J0121087C, 1J0121087E, 06A121132AP, 06A121132AH
- Feature: The coolant enters the water pump through the sewer tube of the water tank, and then enters the engine through the water pump for cooling
- Easy to install: The installation process of our products is simple and convenient, and does not require special tools, usually requires conventional tools to complete, saving your installation time
- Package includes: 1 x Cooling Hose Flange 1 x Coolant T Joint 1 x Thermostat Housing Cover 1 x Rubber O-Ring for Block Flange 1 x Coolant Temperature Sensor O-Ring 2 x Screws 2 x Washers (As the picture shows)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | labwork |
| Brand | labwork |
| Item Weight | 1.14 pounds |
| Package Dimensions | 8.27 x 5 x 3.27 inches |
| Manufacturer Part Number | 06A121121C |

## Images

![labwork Cast Aluminum Coolant Flange Upgrade Kit Replacement for Golf Mk4 Jetta Mk4 1.8T TT 2000-2005 1J0121087E - Image 1](https://m.media-amazon.com/images/I/61wx55LuHdL.jpg)
![labwork Cast Aluminum Coolant Flange Upgrade Kit Replacement for Golf Mk4 Jetta Mk4 1.8T TT 2000-2005 1J0121087E - Image 2](https://m.media-amazon.com/images/I/61UDySxegXL.jpg)
![labwork Cast Aluminum Coolant Flange Upgrade Kit Replacement for Golf Mk4 Jetta Mk4 1.8T TT 2000-2005 1J0121087E - Image 3](https://m.media-amazon.com/images/I/61ejSleVIQL.jpg)
![labwork Cast Aluminum Coolant Flange Upgrade Kit Replacement for Golf Mk4 Jetta Mk4 1.8T TT 2000-2005 1J0121087E - Image 4](https://m.media-amazon.com/images/I/71YJvhcd2YL.jpg)
![labwork Cast Aluminum Coolant Flange Upgrade Kit Replacement for Golf Mk4 Jetta Mk4 1.8T TT 2000-2005 1J0121087E - Image 5](https://m.media-amazon.com/images/I/71fZqfNWDcL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great price
  

*by S***H on Reviewed in the United States on March 22, 2024*

Theses are great for the price, would buy again

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Amazing for the price
  

*by D***C on Reviewed in the United States on December 22, 2023*

I noticed a small leak of coolant and these units should take care of that. They are much better than the plastic units I will be replacing. They seem well made and very affordable.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    The parts came as promised and were of a good quality and fair price
  

*by A***R on Reviewed in the United States on October 3, 2023*

quality price and performance  all that I ask

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**Shop now:** [https://www.desertcart.ma/products/154927786-labwork-cast-aluminum-coolant-flange-upgrade-kit-replacement-for-golf](https://www.desertcart.ma/products/154927786-labwork-cast-aluminum-coolant-flange-upgrade-kit-replacement-for-golf)

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*Product available on Desertcart Morocco*
*Store origin: MA*
*Last updated: 2026-01-24*