---
product_id: 47698594
title: "GM Genuine Parts 15-11125 (12674639) Water Pump Outlet Assembly with Thermostat"
brand: "gm genuine parts"
price: "R2624"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Gm Genuine Parts"
url: https://www.desertcart.co.za/products/47698594-gm-genuine-parts-15-11125-12674639-water-pump-outlet-assembly
store_origin: ZA
region: South Africa
---

# Consistent 205°F temp control One-piece easy install OE-spec precision fit GM Genuine Parts 15-11125 (12674639) Water Pump Outlet Assembly with Thermostat

**Brand:** gm genuine parts
**Price:** R2624
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** GM Genuine Parts 15-11125 (12674639) Water Pump Outlet Assembly with Thermostat by gm genuine parts
- **How much does it cost?** R2624 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/47698594-gm-genuine-parts-15-11125-12674639-water-pump-outlet-assembly)

## 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 OEM Quality:** Backed by General Motors for reliability you can count on, no compromises.
- • **Simplified Installation:** One-piece thermostat housing assembly eliminates leaks and reduces install time.
- • **Factory-Grade Fit & Finish:** Engineered to GM OE specs for flawless compatibility and durability.
- • **Optimized Thermal Performance:** Maintains ideal engine temperature at a steady 205°F for peak efficiency.
- • **Durable Cast Iron Construction:** Built to withstand harsh engine conditions and extend vehicle lifespan.

## Overview

The GM Genuine Parts 15-11125 Water Pump Outlet Assembly with Thermostat is a direct OE replacement designed and tested to meet GM’s rigorous standards. Featuring a one-piece cast iron housing and thermostat assembly, it ensures precise temperature regulation at 205°F, easy installation, and long-lasting durability—perfect for maintaining optimal engine performance in GM vehicles.

## 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 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #43,260 in Automotive ( See Top 100 in Automotive ) #43 in Automotive Replacement Engine Thermostat Housings |
| Brand | GM GENUINE PARTS |
| Customer Reviews | 4.7 4.7 out of 5 stars (765) |
| Date First Available | August 11, 2016 |
| Global Trade Identification Number | 00808709536482 |
| Item Weight | 8.8 ounces |
| Item model number | 15-11125 |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 12674639 |
| Material | Cast Iron |
| OEM Part Number | 12674639 |
| Position | Front |
| Product Dimensions | 6.5 x 4.2 x 4.2 inches |
| UPC | 808709536482 |
| Vehicle Service Type | Car |

## Product Details

- **Automotive Fit Type:** Vehicle Specific Fit
- **Brand:** GM GENUINE PARTS
- **Global Trade Identification Number:** 00808709536482
- **Item Weight:** 8.8 ounces
- **Manufacturer:** ACDelco
- **Material:** Cast Iron
- **OEM Part Number:** 12674639
- **UPC:** 808709536482
- **Vehicle Service Type:** Car

## Images

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

### ⭐⭐⭐⭐⭐ 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.!!!

### ⭐⭐⭐⭐⭐ Exactly as Described
*by O***6 on February 22, 2026*

Fit exactly as described based on specs. Worked perfectly after install. Happy with product

## 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 South Africa*
*Store origin: ZA*
*Last updated: 2026-03-07*