---
product_id: 47698594
title: "15-11125 (12674639) Water Pump Outlet Assembly with Thermostat"
brand: "gm genuine parts"
price: "$264"
currency: NZD
in_stock: true
reviews_count: 8
category: "Gm Genuine Parts"
url: https://www.desertcart.nz/products/47698594-15-11125-12674639-water-pump-outlet-assembly-with-thermostat
store_origin: NZ
region: New Zealand
---

# Maintains optimal 205°F engine temp Direct OE fit & easy install Cast iron durability 15-11125 (12674639) Water Pump Outlet Assembly with Thermostat

**Brand:** gm genuine parts
**Price:** $264
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** 15-11125 (12674639) Water Pump Outlet Assembly with Thermostat by gm genuine parts
- **How much does it cost?** $264 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/47698594-15-11125-12674639-water-pump-outlet-assembly-with-thermostat)

## 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 Genuine Quality:** Backed by GM with a 24-month unlimited mile warranty for peace of mind.
- • **Optimizes Engine Temperature:** Keeps your engine running consistently at 205°F for maximum efficiency and comfort.
- • **Durable Cast Iron Construction:** Built tough to withstand high temperatures and extend engine life.
- • **Integrated Thermostat Assembly:** One-piece design simplifies installation—ditch the old housing, upgrade effortlessly.
- • **Precision Engineered for Peak Performance:** Manufactured to exact GM OE specs ensuring flawless fit, form, and function.

## Overview

The GM Genuine Parts 15-11125 Water Pump Outlet Assembly with Thermostat is a cast iron, one-piece thermostat housing designed to replace leaking or faulty units. Engineered to GM OE specifications, it guarantees a perfect fit and reliable performance, maintaining optimal engine temperature at 205°F. Backed by a 24-month unlimited mile warranty, this part ensures durability and peace of mind for GM vehicle owners seeking hassle-free installation and lasting quality.

## 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 - Works great on 2015 Tahoe. Easy install and no problems or leaks.
Review: Basically an OEM part! - I ordered this for my 2016 Silverado LTZ. I was having issues with the temperature barely getting above 150° most of the time it wouldn’t get above 140. And with winter rapidly approaching, I decided to give it a try. Installation was quite simple. This thermostat and housing is a one piece assembly unlike the traditional ones with an aluminum reusable housing, With this particular design you just throw the old housing away and install the whole new assembly. Everything fit perfectly the instructions were straightforward and boy What a difference in heat output. You can barely hold your hand in front of the vent now and she consistently runs at 205*F after if she warms up. Very satisfied.!!!

## Features

- Repairs leaking thermostat housings
- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01K8BJ7BS |
| Best Sellers Rank | #31,362 in Automotive ( See Top 100 in Automotive ) #33 in Automotive Replacement Engine Thermostat Housings |
| Brand | GM GENUINE PARTS |
| Brand Name | GM GENUINE PARTS |
| Compatible with Vehicle Type | Car |
| Customer Reviews | 4.7 out of 5 stars 760 Reviews |
| Global Trade Identification Number | 00808709536482 |
| Included Components | ACDelco - Outlet Asm-W/Pm (Slp-1) (15-11125) |
| Item Height | 4.2 inches |
| Item Type Name | ACDelco Auto Parts |
| Item Weight | 8.8 ounces |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 12674639 |
| 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 | Cast Iron |
| Material Type | Cast Iron |
| Model Number | 15-11125 |
| Part Interchange Info | changeable |
| UPC | 808709536482 |
| Unit Count | 1.0 Count |
| Vehicle Service Type | Car |

## Product Details

- **Brand:** GM GENUINE PARTS
- **Material:** Cast Iron
- **Item Weight:** 0.55 Pounds
- **Vehicle Service Type:** Car
- **Global Trade Identification Number:** 00808709536482
- **Manufacturer:** ACDelco
- **OEM Part Number:** 12674639
- **Automotive Fit Type:** Vehicle Specific Fit
- **UPC:** 808709536482

## Images

![15-11125 (12674639) Water Pump Outlet Assembly with Thermostat - Image 1](https://m.media-amazon.com/images/I/5113KTuQmuL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect fit
*by T***A on November 25, 2025*

Works great on 2015 Tahoe. Easy install and no problems or leaks.

### ⭐⭐⭐⭐⭐ Basically an OEM part!
*by D***R on February 26, 2025*

I ordered this for my 2016 Silverado LTZ. I was having issues with the temperature barely getting above 150° most of the time it wouldn’t get above 140. And with winter rapidly approaching, I decided to give it a try. Installation was quite simple. This thermostat and housing is a one piece assembly unlike the traditional ones with an aluminum reusable housing, With this particular design you just throw the old housing away and install the whole new assembly. Everything fit perfectly the instructions were straightforward and boy What a difference in heat output. You can barely hold your hand in front of the vent now and she consistently runs at 205*F after if she warms up. Very satisfied.!!!

### ⭐⭐⭐⭐⭐ Worked great, no issues.
*by C***R on November 17, 2025*

Worked great, no issues.

## Frequently Bought Together

- ACDelco GM Genuine Parts 15-11125 Water Pump Outlet Assembly with Thermostat
- ACDelco Gold 213-4514 (19236568) Engine Coolant Temperature Sensor
- GM 12620318 Engine Coolant Thermostat Housing Gasket

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-04*