---
product_id: 1280124
title: "GM Genuine Parts 15-11057 (12600172) Engine Coolant Thermostat Water Inlet Assembly"
brand: "gm genuine parts"
price: "€ 101.07"
currency: EUR
in_stock: true
reviews_count: 8
category: "Gm Genuine Parts"
url: https://www.desertcart.com.cy/products/1280124-gm-genuine-parts-15-11057-12600172-engine-coolant-thermostat-water
store_origin: CY
region: Cyprus
---

# Prevents engine overheating OEM-grade steel thermostat housing Direct-fit GM OE replacement GM Genuine Parts 15-11057 (12600172) Engine Coolant Thermostat Water Inlet Assembly

**Brand:** gm genuine parts
**Price:** € 101.07
**Availability:** ✅ In Stock

## Summary

> 🔥 Keep your engine cool and your ride flawless with GM Genuine Parts! ⚙️

## Quick Answers

- **What is this?** GM Genuine Parts 15-11057 (12600172) Engine Coolant Thermostat Water Inlet Assembly by gm genuine parts
- **How much does it cost?** € 101.07 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/1280124-gm-genuine-parts-15-11057-12600172-engine-coolant-thermostat-water)

## Best For

- gm genuine parts enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Warranty:** Backed by a 24-month unlimited mile limited warranty for peace of mind
- • **Overheat Protection:** Corrects thermostat failures to keep your engine running cool
- • **Precision Engine Cooling:** Engineered to GM OE specs for flawless fit and function
- • **Seamless OEM Integration:** GM-recommended part ensures factory-level performance
- • **Durable Steel Construction:** Built tough with steel for long-lasting reliability

## Overview

The GM Genuine Parts 15-11057 Engine Coolant Thermostat Water Inlet Assembly is a steel, GM OE-spec replacement designed to prevent engine overheating by ensuring precise thermostat function. Trusted by over 1,000 users with a 4.7-star rating, it offers direct-fit installation and is backed by a 24-month unlimited mile warranty, delivering factory-quality reliability and durability for your GM vehicle.

## Description

GM Genuine Parts Engine Coolant Thermostate Housing Assemblies are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Review: OEM QUALITY - Works as it should. Fits properly. Would be nice if it included the hardware as I had to source those separately.
Review: Perfect Fit - Purchased this for my 2004 Chevy Tahoe and it’s a direct fit. Comes with everything you need to make this job quick and easy. OEM standard quality for a fraction of local parts stores.

## Features

- Repairs leaking thermostat housings
- Corrects engine overheating caused by failed thermostat
- GM-recommended replacement part for your GM vehicle’s original factory component
- Offering the quality, reliability, and durability of GM OE
- Manufactured to GM OE specification for fit, form, and function; Thermostat Material: Steel

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002VVC4TG |
| Best Sellers Rank | #13,004 in Automotive ( See Top 100 in Automotive ) #8 in Automotive Replacement Engine Thermostats |
| Brand | GM GENUINE PARTS |
| Brand Name | GM GENUINE PARTS |
| Compatible with Vehicle Type | Basic |
| Customer Reviews | 4.7 out of 5 stars 1,092 Reviews |
| Global Trade Identification Number | 40707773594795 |
| Included Components | Water Inlet Assembly |
| Item Type Name | Water Inlet Assembly |
| Item Weight | 10.56 ounces |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 12600172 |
| Manufacturer Warranty Description | 24 Month / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details. |
| Material | Basic |
| Material Type | Basic |
| Model Number | 15-11057 |
| Part Interchange Info | 15-11057 |
| UPC | 707773594797 |
| Unit Count | 1.0 Count |
| Vehicle Service Type | Basic |
| Weight Class | one |

## Product Details

- **Automotive Fit Type:** Vehicle Specific Fit
- **Brand:** GM GENUINE PARTS
- **Global Trade Identification Number:** 40707773594795
- **Item Weight:** 0.66 Pounds
- **Manufacturer:** ACDelco
- **Material:** Basic
- **OEM Part Number:** 12600172
- **UPC:** 707773594797
- **Vehicle Service Type:** Basic
- **Weight Class:** one

## Images

![GM Genuine Parts 15-11057 (12600172) Engine Coolant Thermostat Water Inlet Assembly - Image 1](https://m.media-amazon.com/images/I/510xe1BhDgL.jpg)

## Questions & Answers

**Q: How does my vehicle’s AC system work?**
A: The AC compressor pressurizes refrigerant gas, which moves to the condenser. The gas releases heat, condensing into a high-pressure liquid. After cooling, the liquid passes over evaporator coils to cool the air as it is blown through the vents.

**Q: What are the signs the system needs service?**
A: Common indicators of an air conditioning system in need of service include warm and/or weak airflow through the vents, frequent on/off cycling of the system and a strange or musty odor.

**Q: Is the puddle of water under my car a sign of AC problems?**
A: Not necessarily. Condensation typically builds up on the AC evaporator and the water is drained at the bottom of the vehicle. That’s normal, but a larger puddle combined with reduced AC performance could indicate a problem.

**Q: Does low refrigerant mean there’s a leak in the system?**
A: In most cases the answer is yes. AC systems in older cars will experience refrigerant leakage over time, but a later-model vehicle that needs continual refrigerant recharging typically indicates a leak.

**Q: Can a new cabin air filter improve AC performance?**
A: Yes. A very dirty or clogged cabin air filter can reduce the airflow of the AC system, reducing its cooling efficiency and making the system work harder than normal. Periodic cabin filter replacements help the AC system keep its cool.

## Customer Reviews

### ⭐⭐⭐⭐⭐ OEM QUALITY
*by J***N on May 13, 2025*

Works as it should. Fits properly. Would be nice if it included the hardware as I had to source those separately.

### ⭐⭐⭐⭐⭐ Perfect Fit
*by S***O on June 24, 2025*

Purchased this for my 2004 Chevy Tahoe and it’s a direct fit. Comes with everything you need to make this job quick and easy. OEM standard quality for a fraction of local parts stores.

### ⭐⭐⭐⭐⭐ A Good OEM Part.
*by G***D on August 9, 2024*

This is an updated Thermostat housing for older models requiring a water pump replacement. I used this on a 2003 Express with the 6.0L gas engine. People have knocked this for being made in Japan. It's a lot better than Chinese made junk. Works well and the Thermostat has a seal on it. Recommend using a sealant for the housing to water pump.

## Frequently Bought Together

- ACDelco GM Genuine Parts 15-11057 Engine Coolant Thermostat Water Inlet Assembly
- ACDelco Gold 252-845 (19195104) Engine Water Pump
- ACDelco Gold 38158 Drive Belt Tensioner Assembly with Pulley, Aluminum w/ Black Pulley

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-03-04*