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Chevy Silverado 1500 Heater Cores

19187961 - : Air Conditioning Evaporator Core Repair Kit for GM Image

Air Conditioning Evaporator Core Repair Kit

Professional, premium aftermarket replacement This GM Genuine Part is designed, engineered, and tested to rigorous standards and is...
$30.99
MSRP $50.82
Save $19.83
39% Off
15055342 - : Auxiliary HVAC Heater Inlet Hose Tee for GM Image

Auxiliary HVAC Heater Inlet Hose Tee

Provides quick coupling of heater hoses to the heater core, engine, and heater valves This GM Genuine Part is designed, engineered, and...
$36.83
MSRP $60.40
Save $23.57
39% Off
15055343 - : Tee,Aux Htr Inl Hose for GM Image

Tee,Aux Htr Inl Hose

Provides quick coupling of heater hoses to the heater core, engine, and heater valves This GM Genuine Part is designed, engineered, and...
$33.26
MSRP $54.54
Save $21.28
39% Off
84145222 - : Heater Inlet and Outlet Hose Connector for GM Image

Heater Inlet and Outlet Hose Connector

Provides quick coupling of heater hoses to the heater core, engine, and heater valves This GM Genuine Part is designed, engineered, and...
$81.85
MSRP $119.73
Save $37.88
31.6% Off
10436543 - : Auxiliary HVAC Heater Hose Connector for GM Image

Auxiliary HVAC Heater Hose Connector

Designed to repair cooling system leaks caused by cracked heater hose fittings This GM Genuine Part is designed, engineered, and tested...
Discontinued
26240165 - : Heater Water Auxiliary Pump Bracket for GM Image

Heater Water Auxiliary Pump Bracket

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$37.51
MSRP $53.99
Save $16.48
30.5% Off
23339828 - : Engine Coolant Heater Extension Cable for GM Image

Engine Coolant Heater Extension Cable

GM Genuine Parts Engine Heater Cords are designed, engineered, and tested to rigorous standards, and are backed by General Motors. ...
Discontinued
84464933 - : Rear Seat Heater Wiring Harness for GM Image

Rear Seat Heater Wiring Harness

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$46.82
MSRP $67.34
Save $20.52
30.5% Off
84464932 - : Rear Seat Heater Wiring Harness for GM Image

Rear Seat Heater Wiring Harness

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$44.85
MSRP $64.51
Save $19.66
30.5% Off
84388746 - : Heater Water Auxiliary Pump Bracket for GM Image

Heater Water Auxiliary Pump Bracket

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$27.23
MSRP $44.66
Save $17.43
39% Off
25962432 - : HVAC Heater Control Switch Bezel for GM Image

HVAC Heater Control Switch Bezel

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$18.27
MSRP $24.56
Save $6.29
25.6% Off
19317444 - : Throttle Body Heater Hose Clamp for GM Image

Throttle Body Heater Hose Clamp

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$4.91
MSRP $6.84
Save $1.93
28.2% Off

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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.