---
product_id: 344429075
title: "ACDelco GM Genuine Parts 15-11057 Engine Coolant Thermostat Water Inlet Assembly"
brand: "gm genuine parts"
price: "VT18811"
currency: VUV
in_stock: true
reviews_count: 5
category: "Gm Genuine Parts"
url: https://www.desertcart.vu/products/344429075-acdelco-gm-genuine-parts-15-11057-engine-coolant-thermostat-water
store_origin: VU
region: Vanuatu
---

# Prevents engine overheating reliably GM OE spec for perfect fit & function Steel thermostat material for durability ACDelco GM Genuine Parts 15-11057 Engine Coolant Thermostat Water Inlet Assembly

**Brand:** gm genuine parts
**Price:** VT18811
**Availability:** ✅ In Stock

## Summary

> 🔥 Keep your engine cool, your ride smooth, and your status premium!

## Quick Answers

- **What is this?** ACDelco GM Genuine Parts 15-11057 Engine Coolant Thermostat Water Inlet Assembly by gm genuine parts
- **How much does it cost?** VT18811 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/344429075-acdelco-gm-genuine-parts-15-11057-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 GM Quality:** Backed by General Motors for guaranteed reliability and longevity
- • **Overheat Protection:** Effectively repairs leaks and prevents costly engine overheating
- • **Seamless Compatibility:** Perfect OEM replacement for your GM vehicle’s original thermostat housing
- • **Precision Engine Cooling:** Engineered to GM OE specs for flawless fit and optimal temperature control
- • **Durable Steel Construction:** Built with high-grade steel to withstand extreme engine conditions

## Overview

The ACDelco GM Genuine Parts 15-11057 Engine Coolant Thermostat Water Inlet Assembly is a GM-recommended, steel-built thermostat housing designed to prevent engine overheating by ensuring precise coolant flow. Manufactured to exact GM OE specifications, it guarantees a perfect fit and long-lasting durability for GM vehicles, making it the trusted choice for professional-grade engine maintenance.

## 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: Perfect fit to new ACDelco water water pump.
Review: I put the thermostat and housing in my 2004 Chevy Avalanche Z71 2 years ago and they are a perfect fit for the engine...Still going strong

## 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 | #9,698 in Automotive ( See Top 100 in Automotive ) #5 in Car Engine Thermostats |
| Brand | GM GENUINE PARTS |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,065) |
| Date First Available | 7 August 2012 |
| Exterior | Machined |
| Item Weight | 299 g |
| Item model number | 15-11057 |
| Manufacturer | AC Delco |
| Manufacturer Part Number | 12600172 |
| Model | Water Inlet Assembly |
| OEM Part Number | 12600172 |
| Product Dimensions | 15.75 x 10.41 x 10.41 cm; 299.37 g |

## Product Details

- **Brand:** GM GENUINE PARTS
- **Item weight:** 299 g
- **Material:** Alloy Steel
- **Vehicle service type:** Basic
- **Weight class:** Lightweight

## Images

![ACDelco GM Genuine Parts 15-11057 Engine Coolant Thermostat Water Inlet Assembly - Image 1](https://m.media-amazon.com/images/I/31T3sYHWTDL.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

### ⭐⭐⭐⭐⭐ Review
*by S***L on 25 January 2025*

Perfect fit to new ACDelco water water pump.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 24 April 2024*

I put the thermostat and housing in my 2004 Chevy Avalanche Z71 2 years ago and they are a perfect fit for the engine...Still going strong

### ⭐⭐⭐⭐⭐ Review
*by G***O on 24 November 2019*

Excelente

## Frequently Bought Together

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

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-08*