We Specialize in Finding Those Hard to Find and Backordered GM Parts! Just Place Your Order and Let Our Professional Parts Team go to Work For You!

Chevy Silverado 1500 Heater Cores

19425051 - : Heater and Air Conditioning Control without Defrost for GM Image

Heater and Air Conditioning Control without Defrost

Professional, premium aftermarket replacement Manufactured to meet expectations for fit, form, and function
$254.25
MSRP $431.11
Save $176.86
41% Off
84692238 - : Heater and Air Conditioning User Interface Control for GM Image

Heater and Air Conditioning User Interface Control

Dual-zone, with heated seats, with vented seat. Restores the operation and function of your vehicles heating and cooling controls
$147.81
MSRP $250.64
Save $102.83
41% Off
84689028 - : Auxiliary Heater and Air Conditioning Wiring Harness for GM Image

Auxiliary Heater and Air Conditioning Wiring Harness

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$93.97
MSRP $137.43
Save $43.46
31.6% Off
15921502 - : Black Heater Inlet and Outlet Hose Connector for GM Image

Black Heater Inlet and Outlet Hose Connector

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors Original equipment parts...
$21.60
MSRP $34.86
Save $13.26
38% Off
42729738 - : Jet Black Heater and Air Conditioning Control for GM Image

Jet Black Heater and Air Conditioning Control

Restores the operation and function of your vehicles heating and cooling controls Manufactured to GM OE specification for fit,...
$174.33
MSRP $295.60
Save $121.27
41% Off
84304969 - : Rear Driver Side Seat Heater Wiring Harness for GM Image

Rear Driver Side Seat Heater Wiring Harness

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$31.10
MSRP $44.75
Save $13.65
30.5% Off
84817577 - : Rear Driver Side Seat Heater Wiring Harness for GM Image

Rear Driver Side Seat Heater Wiring Harness

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$60.98
MSRP $89.20
Save $28.22
31.6% Off
84176058 - : Heater and Air Conditioning User Interface Control for GM Image

Heater and Air Conditioning User Interface Control

Restores the operation and function of your vehicle's heating and cooling controls This GM Genuine Part is designed, engineered, and...
$186.82
MSRP $316.78
Save $129.96
41% Off
84793085 - : Heater and Air Conditioning Control Temperature Knob for GM Image

Heater and Air Conditioning Control Temperature Knob

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$24.37
MSRP $32.64
Save $8.27
25.3% Off
12522867 - : Tee,Htr Wat Bypass Vlv Otlt Hose for GM Image

Tee,Htr Wat Bypass Vlv Otlt Hose

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Discontinued
19425050 - : Heater and Air Conditioning Control with Defrost for GM Image

Heater and Air Conditioning Control with Defrost

Professional, premium aftermarket replacement Manufactured to meet expectations for fit, form, and function
$329.89
MSRP $564.15
Save $234.26
41.5% Off
42341671 - : Heater and Air Conditioning Evaporator Case Clip for GM Image

Heater and Air Conditioning Evaporator Case Clip

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$3.31
MSRP $4.64
Save $1.33
28.7% Off

No results found for "heater core". Here are some helpful search tips:

  • Search by a part name. Example: water pump.
  • Be less specific. Example: brake instead of ceramic brake.
  • Remove information such as make, year or model.
  • Can't find the part you are looking for? Contact us and we'll find it for you!


TL;DR Summary

A Silverado 1500 heater core helps transfer engine heat into the cabin HVAC system. Genuine GM heater core components help match the HVAC case, hose connections, and cooling-system layout.

Overview

When a heater core leaks or becomes restricted, Silverado 1500 owners may notice poor heat, coolant odor, window fogging, damp carpet, or coolant loss. Because heater core replacement can be labor-intensive, choosing the right part before the repair matters. Van Chevrolet GM Parts Center helps Silverado owners shop OEM HVAC components with fitment in mind.

What This Category Includes

  • Heater cores and related HVAC components
  • Heater core seals and connection parts
  • HVAC case and hose-related service components
  • OEM parts for supported Silverado 1500 applications

Why Genuine GM Parts Matter

OEM heater core components are designed around the HVAC case, tube orientation, and cooling-system connections. View a verified Silverado 1500 heater parts page.

How to Choose the Right Part

Confirm VIN, model year, cab configuration, HVAC equipment, and engine before ordering. If coolant contamination or leaks are present, inspect related cooling-system components during the repair.

Compatibility / Fitment Guidance

Heater core fitment can vary by model year, HVAC configuration, and body or cab setup. Confirm whether additional seals, clamps, or coolant service parts are needed before beginning the repair.

Key Takeaways

  • Heater core replacement should be planned carefully because labor can be significant.
  • OEM heater core parts help match the HVAC case and hose connection points.
  • Inspect related cooling components before completing the repair.

FAQ Section

What are the signs of a bad Silverado heater core?

Poor heat, coolant smell, damp carpet, window fogging, or unexplained coolant loss can point to heater core concerns.

Does heater core fitment vary by cab?

It can. Cab and HVAC configuration may affect fitment depending on model year.

Should I flush the cooling system?

That depends on the repair condition. Contaminated coolant or restriction concerns may require additional cooling-system service.