---
product_id: 206855854
title: "15-81931 (84178783) Heating and Air Conditioning Blower Control Module"
brand: "gm genuine parts"
price: "SAR 478"
currency: SAR
in_stock: true
category: "Gm Genuine Parts"
url: https://www.desertcart.com.sa/products/206855854-15-81931-84178783-heating-and-air-conditioning-blower-control-module
store_origin: SA
region: Saudi Arabia
---

# Optimized HVAC Speed Control No Programming Needed GM OE Spec Precision 15-81931 (84178783) Heating and Air Conditioning Blower Control Module

**Brand:** gm genuine parts
**Price:** SAR 478
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your drive with precision climate control — GM Genuine Parts power your comfort!

## Quick Answers

- **What is this?** 15-81931 (84178783) Heating and Air Conditioning Blower Control Module by gm genuine parts
- **How much does it cost?** SAR 478 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/206855854-15-81931-84178783-heating-and-air-conditioning-blower-control-module)

## 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

- • **Seamless GM OE Fit:** Engineered to exact GM specifications for flawless integration and performance.
- • **Durability You Can Trust:** Built to last with genuine GM quality, ensuring long-term reliability under all conditions.
- • **Reliable Climate Control:** Microprocessor-driven modulation ensures smooth, precise blower speed adjustments.
- • **Plug-and-Play Installation:** No programming required—get your HVAC system up and running hassle-free.
- • **Upgrade Your Ride’s Comfort:** Restore factory-level HVAC performance and enjoy consistent cabin climate control.

## Overview

The GM Genuine Parts 15-81931 Blower Control Module is a direct OE replacement designed to perfectly fit GM vehicles. Featuring microprocessor technology, it modulates HVAC blower speeds for optimal climate control without requiring programming. Manufactured to GM’s exacting standards, it guarantees reliable, durable performance and easy installation, restoring your vehicle’s original comfort experience.

## Description

ACDelco GM Original Equipment HVAC Blower Motor Control Modules are microprocessor computers that modulate HVAC blower speed. The control module receives input from the HVAC control module and is a GM-recommended replacement for your vehicle's original co

## Features

- GM-recommended replacement part for your GM vehicle's original factory component
- Offering the quality, reliability, and durability of GM OE; No Programming Required
- Manufactured to GM OE specification for fit, form, and function

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0792NR4DF |
| Best Sellers Rank | #252,457 in Automotive ( See Top 100 in Automotive ) #421 in Automotive Blower Motors |
| Brand | GM GENUINE PARTS |
| Customer Reviews | 4.6 4.6 out of 5 stars (152) |
| Date First Available | January 16, 2018 |
| Item Weight | 5.6 ounces |
| Item model number | 15-81931 |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 84178783 |
| OEM Part Number | 84178783 |
| Product Dimensions | 7 x 7 x 7 inches |

## Images

![15-81931 (84178783) Heating and Air Conditioning Blower Control Module - Image 1](https://m.media-amazon.com/images/I/71XMnvdkE8L.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.

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**Shop now:** [https://www.desertcart.com.sa/products/206855854-15-81931-84178783-heating-and-air-conditioning-blower-control-module](https://www.desertcart.com.sa/products/206855854-15-81931-84178783-heating-and-air-conditioning-blower-control-module)

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*Product available on Desertcart Saudi Arabia*
*Store origin: SA*
*Last updated: 2026-10-27*