---
product_id: 4617352
title: "GM Genuine Parts 15-73952 (89018374) Heating and Air Conditioning Panel Mode Door Actuator"
brand: "gm genuine parts"
price: "421.95 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Gm Genuine Parts"
url: https://www.desertcart.tn/products/4617352-gm-genuine-parts-15-73952-89018374-heating-and-air-conditioning
store_origin: TN
region: Tunisia
---

# OEM fit for GM models 1500/2500/3500 3.7 in actuator arm length Precise airflow control via mode door actuation GM Genuine Parts 15-73952 (89018374) Heating and Air Conditioning Panel Mode Door Actuator

**Brand:** gm genuine parts
**Price:** 421.95 DT
**Availability:** ✅ In Stock

## Summary

> 🌬️ Upgrade your ride’s climate game with GM precision – breathe better, drive smarter!

## Quick Answers

- **What is this?** GM Genuine Parts 15-73952 (89018374) Heating and Air Conditioning Panel Mode Door Actuator by gm genuine parts
- **How much does it cost?** 421.95 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/4617352-gm-genuine-parts-15-73952-89018374-heating-and-air-conditioning)

## 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

- • **Precision OEM Engineering:** Designed to seamlessly replace original GM HVAC mode door actuators for flawless fit and function.
- • **Universal GM Compatibility:** Fits multiple GM models including Sierra, Silverado, and Suburban (2003-09) without ATC, ensuring broad usability.
- • **Durable Korean Manufacturing:** Built with high-quality materials for long-lasting performance and zero calibration loss in auto climate control systems.
- • **Trusted by Professionals & DIYers:** Highly rated with 4.2 stars and praised for immediate, reliable performance—no more guesswork or knockoff failures.
- • **Effortless Installation & Calibration:** Straightforward mounting with 5.5mm bolts and clear recalibration steps to restore perfect airflow control quickly.

## Overview

The GM Genuine Parts 15-73952 HVAC Mode Door Actuator is a precision-engineered electric motor designed to control airflow direction in GM vehicles (1500, 2500, 3500 series, Sierra, Silverado, Suburban 2003-09). Manufactured by ACDelco in Korea, it guarantees OEM-level fit, durability, and performance. With a 3.7-inch actuator arm and easy installation, it restores perfect climate control functionality, backed by strong user reviews and trusted by professionals for reliable, long-lasting operation.

## Description

ACDelco GM Original Equipment HVAC Mode Door Actuators are electric motors attached to the HVAC housing that move or actuate the mode doors or flaps, directing the airflow to the desired outlet vents. These original equipment HVAC mode door actuators are GM-recommended replacements for your vehicle’s original components and have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. Actuator Arm Length: 3.7 in.

Review: Works great - UPDATE 01/23/20 I've been using one if these as a mode actuator and another as a blend actuator for a few months now with zero issues. No calibration loss in an auto climate control application, great OEM made in Korea product. ~~~~~~~~~~~~~~~~~~~ UPDATE: 11/08/19: USED AS A BLEND DOOR ACTUATOR This has been running well as mode actuator on an '03 Suburban for a few weeks. I've heard of other instances of this same part being used as a temperature (blend door) actuator and I decided to take a shot and use it for my passenger side blend door actuator with auto climate control. The track that comes with this model pops off the actuator and you are left with just the unit. I was a bit apprehensive about using it in the blend door position, but I just finished the job and it calibrated just fine as a blend door actuator using the same step list below. I used this in place of the original GM p/n# 52402588 that was removed. The job itself took me about 4 hours since I had to remove the passenger airbag and the onstar module takes up a lot of the work space so it was a very tight area, and I did disconnect the negative battery cable for this. I used a pass through ratchet with a 5.5 MM socket to get the mounting screws off, there were only two screws, but a nightmare to get to. I will update in a few weeks to make sure I have no issues using this mode actuator in a different capacity. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ORIGINAL: First off, yes, my product was made in Korea, but this does not keep it from being a genuine product. Do some research people. NOTE: REMEMBER TO FULLY INSTALL THE ACTUATOR, DON'T SLAVE IT IN BY JUST PLUGGING IN THE CONNECTOR AND TURNING IT ON, YOU WILL OVER EXTEND THE INTERNAL ACTUATOR GEARS AND MESS IT UP!! I used this as an actual mode actuator for an '03 Suburban with auto temperature control. The mode gear is hard pressed together but it will come apart , just don't pry it side to side, straight up will do just fine. I didn't use the new gear, just the actuator, but after performing the hvac recalibration everything worked great. My mode was stuck in feet only, now it works in all settings. Note: the mounting bolts were 5.5 MM. DISCLAIMER: FOLLOW RECALIBRATION STEPS AT YOUR OWN RISK For manual systems it does not matter where the a/c controls are set but if you feel the need to do something, turn the blower switch on (I prefer speed 3) and set the temperature sliders about .5″ to .75″ from full cold. For auto systems, press the auto button, with the key on. Turn the ignition off. Remove the HVAC/ECAS , 10 amp fuse in the underhood fuse box* or disconnect the battery for one minute. *Fuse locations can vary from year to year and between different models. Install the HVAC fuse or reconnect the battery. Start the engine. On systems with auto a/c controls the controls will default to 74 degrees F when the ignition is turned back on. DO NOT TOUCH the a/c controls. Let the engine run for 1-2 minutes. Turn the ignition off for at least 10 seconds but no more than 30 seconds. Restart the engine and then test the a/c controls.
Review: Perfect - This actuator worked perfectly for my 2004 Avalanche. My air would stay in defrost mode. I have tried several of the knockoffs and for under $20 and they did not work. Plugged this part in and it worked the very first time without no calibrating. Don’t waste your time or money with others. Get it done the first time

## Features

- All models. 1500. , mode. 2500, 3500. Without atc. With standard cab. Sierra, silverado. Mode door actuator. Front 2003-06, mode. Front, 2008-09, mode.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001S8F2V0 |
| Best Sellers Rank | #54,523 in Automotive ( See Top 100 in Automotive ) #54 in Automotive Replacement Heater Blend Door Levers |
| Brand | GM GENUINE PARTS |
| Customer Reviews | 4.2 4.2 out of 5 stars (913) |
| Date First Available | December 18, 2008 |
| Exterior Finish | Plastic |
| Global Trade Identification Number | 00021625560397 |
| Inlet Connection Size | 3.7 Inches |
| Inlet Connection Type | Pin |
| Is Discontinued By Manufacturer | No |
| Item Weight | 6.9 ounces |
| Item dimensions L x W x H | 8.25 x 3.25 x 8.75 inches |
| Item model number | 73952 |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 89018374 |
| Material | Plastic |
| Model | ACDelco - Actuatormode Con (Slp) (15-73952) |
| Number of Ports | 2 |
| OEM Part Number | 89018374 |
| Outlet Connection Size | 3.7 Inches |
| Outlet Connection Type | Pin |
| Product Dimensions | 8.25 x 3.25 x 8.75 inches |
| Specification Met | GM |
| UPC | 021625560397 |

## Product Details

- **Brand:** GM GENUINE PARTS
- **Exterior Finish:** Plastic
- **Inlet Connection Size:** 3.7 Inches
- **Inlet Connection Type:** Pin
- **Item dimensions L x W x H:** 8.25 x 3.25 x 8.75 inches
- **Material:** Plastic
- **Number of Ports:** 2
- **Outlet Connection Size:** 3.7 Inches
- **Outlet Connection Type:** Pin
- **Specification Met:** GM

## Images

![GM Genuine Parts 15-73952 (89018374) Heating and Air Conditioning Panel Mode Door Actuator - Image 1](https://m.media-amazon.com/images/I/61Vuqc0+AFL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great
*by .***D on October 21, 2019*

UPDATE 01/23/20 I've been using one if these as a mode actuator and another as a blend actuator for a few months now with zero issues. No calibration loss in an auto climate control application, great OEM made in Korea product. ~~~~~~~~~~~~~~~~~~~ UPDATE: 11/08/19: USED AS A BLEND DOOR ACTUATOR This has been running well as mode actuator on an '03 Suburban for a few weeks. I've heard of other instances of this same part being used as a temperature (blend door) actuator and I decided to take a shot and use it for my passenger side blend door actuator with auto climate control. The track that comes with this model pops off the actuator and you are left with just the unit. I was a bit apprehensive about using it in the blend door position, but I just finished the job and it calibrated just fine as a blend door actuator using the same step list below. I used this in place of the original GM p/n# 52402588 that was removed. The job itself took me about 4 hours since I had to remove the passenger airbag and the onstar module takes up a lot of the work space so it was a very tight area, and I did disconnect the negative battery cable for this. I used a pass through ratchet with a 5.5 MM socket to get the mounting screws off, there were only two screws, but a nightmare to get to. I will update in a few weeks to make sure I have no issues using this mode actuator in a different capacity. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ORIGINAL: First off, yes, my product was made in Korea, but this does not keep it from being a genuine product. Do some research people. NOTE: REMEMBER TO FULLY INSTALL THE ACTUATOR, DON'T SLAVE IT IN BY JUST PLUGGING IN THE CONNECTOR AND TURNING IT ON, YOU WILL OVER EXTEND THE INTERNAL ACTUATOR GEARS AND MESS IT UP!! I used this as an actual mode actuator for an '03 Suburban with auto temperature control. The mode gear is hard pressed together but it will come apart , just don't pry it side to side, straight up will do just fine. I didn't use the new gear, just the actuator, but after performing the hvac recalibration everything worked great. My mode was stuck in feet only, now it works in all settings. Note: the mounting bolts were 5.5 MM. DISCLAIMER: FOLLOW RECALIBRATION STEPS AT YOUR OWN RISK For manual systems it does not matter where the a/c controls are set but if you feel the need to do something, turn the blower switch on (I prefer speed 3) and set the temperature sliders about .5″ to .75″ from full cold. For auto systems, press the auto button, with the key on. Turn the ignition off. Remove the HVAC/ECAS , 10 amp fuse in the underhood fuse box* or disconnect the battery for one minute. *Fuse locations can vary from year to year and between different models. Install the HVAC fuse or reconnect the battery. Start the engine. On systems with auto a/c controls the controls will default to 74 degrees F when the ignition is turned back on. DO NOT TOUCH the a/c controls. Let the engine run for 1-2 minutes. Turn the ignition off for at least 10 seconds but no more than 30 seconds. Restart the engine and then test the a/c controls.

### ⭐⭐⭐⭐⭐ Perfect
*by A***X on September 3, 2024*

This actuator worked perfectly for my 2004 Avalanche. My air would stay in defrost mode. I have tried several of the knockoffs and for under $20 and they did not work. Plugged this part in and it worked the very first time without no calibrating. Don’t waste your time or money with others. Get it done the first time

### ⭐⭐⭐⭐⭐ Perfect fit, AC reset needed to finish install
*by B***C on May 30, 2024*

Exact quality part as the one I removed from my 2005 2500HD. This mode actuator is on the driver's side above the gas pedal. Cam plate should be installed first, check that all vent directions work freely before installing the actuator by holding the cam plate flat while turning between defrost, floor and panel. Viewing the actuator from the gas pedal side, full counterclockwise is for full panel. Tick marks to the left of center. Rotate the cam plate to align the actuator post then you can rotate the actuator and cam plate together to get the two screws aligned. When I first installed this, I could not get defrost until I Googled it to find the reset procedure. To reset, pull the HVAC fuse for 30 seconds, replace it. Fan off, mode to panel, start engine, immediately turn on fan and ac, actuator will blow air from defrost then back to panel, turn off engine. After a few seconds, restart engine and test mode directions. All directions should now be working properly. Good luck! Hardest part is installing the cam plate. Sneak the plate over the gear to engage the cam follower that is on the top of the gear, then sneak the outer cam follower into the outer track, the upper screw post also has a track. This track helps indicate the maximum movement of the cam from defrost to panel air flow.

## Frequently Bought Together

- ACDelco GM Genuine Parts 15-73952 (89018374) Heating and Air Conditioning Panel Mode Door Actuator
- HVAC Blend Door Actuator - Compatible with Chevrolet & GMC 1994-2012 - Silverado, Tahoe & Sierra - Driver & Passenger Side Temperature Control Air Actuator - Replaces 89018365, 604-106, 52402588
- ACDelco GM Original Equipment 15-73620 Heating and Air Conditioning Panel Mode Door Actuator

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-01-23*