---
product_id: 698851826
title: "Aluminum Engine Coolant Thermostat Housing Assembly Compatible with 2017-2023 Buick Cadillac Chevy GMC Vehicles - LaCrosse Regal XT5 XT6 Blazer Acadia 3.6L, Replaces 12678780"
brand: "llannder"
price: "KD 12.70"
currency: KWD
in_stock: true
reviews_count: 5
category: "Llannder"
url: https://www.desertcart.com.kw/products/698851826-aluminum-engine-coolant-thermostat-housing-assembly-compatible-with-2017-2023
store_origin: KW
region: Kuwait
---

# OEM part replacement Durable aluminum build Precision-engineered fit Aluminum Engine Coolant Thermostat Housing Assembly Compatible with 2017-2023 Buick Cadillac Chevy GMC Vehicles - LaCrosse Regal XT5 XT6 Blazer Acadia 3.6L, Replaces 12678780

**Brand:** llannder
**Price:** KD 12.70
**Availability:** ✅ In Stock

## Summary

> ⚡ Upgrade your ride’s heartbeat with precision-engineered cooling power!

## Quick Answers

- **What is this?** Aluminum Engine Coolant Thermostat Housing Assembly Compatible with 2017-2023 Buick Cadillac Chevy GMC Vehicles - LaCrosse Regal XT5 XT6 Blazer Acadia 3.6L, Replaces 12678780 by llannder
- **How much does it cost?** KD 12.70 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/698851826-aluminum-engine-coolant-thermostat-housing-assembly-compatible-with-2017-2023)

## Best For

- llannder enthusiasts

## Why This Product

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

## Key Features

- • **Wide Vehicle Coverage:** Fits popular models like LaCrosse, Regal, XT5, XT6, Blazer, and Acadia, making it the go-to choice for multiple rides.
- • **Tested for Reliability:** 100% quality tested before shipping to guarantee performance and peace of mind.
- • **Effortless Installation:** Engineered for a precise fit that cuts down installation time—get back on the road faster.
- • **Seamless OEM Compatibility:** Perfectly matches 2017-2023 Buick, Cadillac, Chevy & GMC 3.6L engines for hassle-free replacement.
- • **Premium Aluminum Durability:** Crafted from high-quality aluminum to resist cracks and leaks, ensuring long-lasting engine protection.

## Overview

The LLANNDER Aluminum Engine Coolant Thermostat Housing Assembly is a direct OEM replacement designed for 2017-2023 Buick, Cadillac, Chevy, and GMC 3.6L engines. Made from durable aluminum, it resists cracks and leaks, ensuring reliable engine temperature regulation. This precisely machined part fits a wide range of models including LaCrosse, Regal, XT5, XT6, Blazer, and Acadia, and is 100% tested for quality before shipping, offering a hassle-free installation experience.

## Description

LLANNDER Aluminum Engine Coolant Thermostat Housing Assembly Compatible with 2017-2023 Buick Cadillac Chevy GMC Vehicles - LaCrosse Regal XT5 XT6 Blazer Acadia 3.6L, Replaces 12678780

Review: Works - Works. No more low coolant temp
Review: not worth the money - installed 4 months ago and is already starting to stick open. would definitely not buy again.

## Features

- Replace Part Numbers: 12678780
- Premium Quality: LLANNDER Thermostat Housing Is Made of High Quality & Durable Materials for Resistance to Crack and Leakage. 100% Tested Before Shipping
- Easy Installation: The Thermostat Housing Is Precisely Engineered for Easy Installation. It Is Exactly Match OEM Product
- Application: Fit for 2017-2019 LaCrosse, 2018-2020 Regal Sportback, 2017-2023 XT5, 2020-2023 XT6, 2019-2023 Blazer, and 2017-2023 Acadia Models. Specially Designed for 3.6L Engines
- Package Includes: 1x Engine Coolant Thermostat Housing Assembly

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DPFVD8GN |
| Best Sellers Rank | #335,909 in Automotive ( See Top 100 in Automotive ) #509 in Automotive Replacement Engine Thermostat Housings |
| Brand | LLANNDER |
| Customer Reviews | 3.7 3.7 out of 5 stars (14) |
| Date First Available | December 2, 2024 |
| Exterior | Machined |
| Item Weight | 11.7 ounces |
| Item model number | 12678780 |
| Manufacturer | LLANNDER |
| Manufacturer Part Number | 12678780 |
| Model | Thermostat Housing |
| Position | Front |
| Product Dimensions | 4.25 x 4.25 x 3.35 inches |

## Images

![Aluminum Engine Coolant Thermostat Housing Assembly Compatible with 2017-2023 Buick Cadillac Chevy GMC Vehicles - LaCrosse Regal XT5 XT6 Blazer Acadia 3.6L, Replaces 12678780 - Image 1](https://m.media-amazon.com/images/I/61GoNXiZVNL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works
*by C***S on December 16, 2025*

Works. No more low coolant temp

### ⭐ not worth the money
*by G***H on February 12, 2026*

installed 4 months ago and is already starting to stick open. would definitely not buy again.

### ⭐⭐⭐⭐ o ring
*by J***T on October 12, 2025*

should come with O-ring for feeder pipe

## Frequently Bought Together

- LLANNDER Aluminum Engine Coolant Thermostat Housing Assembly Compatible with 2017-2023 Buick Cadillac Chevy GMC Vehicles - LaCrosse Regal XT5 XT6 Blazer Acadia 3.6L, Replaces 12678780
- Walker Products 211-2025 Engine Coolant Temperature Sensor
- ACDelco GM Original Equipment 12650595 Engine Coolant Temperature Sensor, Black

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**Shop now:** [https://www.desertcart.com.kw/products/698851826-aluminum-engine-coolant-thermostat-housing-assembly-compatible-with-2017-2023](https://www.desertcart.com.kw/products/698851826-aluminum-engine-coolant-thermostat-housing-assembly-compatible-with-2017-2023)

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-03-15*