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Chevy Silverado 1500 Heater Cores

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84021229 - : Heater Inlet Hose Connector for GM Image

Heater Inlet Hose Connector

Provides quick coupling of heater hoses to the heater core, engine, and heater valves This GM Genuine Part is designed, engineered, and...
$12.22
MSRP $19.40
Save $7.18
37% Off
15059584 - : Heater Outlet Hose Connector for GM Image

Heater 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...
$11.83
MSRP $18.78
Save $6.95
37% Off
26223354 - : Heater Inlet Hose Connector for GM Image

Heater Inlet Hose Connector

Provides quick coupling of heater hoses to the heater core, engine, and heater valves This GM Genuine Part is designed, engineered, and...
$24.77
MSRP $35.61
Save $10.84
30.4% Off
19130028 - : Heater Coolant Heater Seal Kit with 3 Seals for GM Image

Heater Coolant Heater Seal Kit with 3 Seals

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$134.04
MSRP $225.39
Save $91.35
40.5% Off
12556261 - : Heater,Eng Cool for GM Image

Heater,Eng Cool

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$26.05
MSRP $37.48
Save $11.43
30.5% Off
12621907 - : Heater Asm-Int Air for GM Image

Heater Asm-Int Air

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$132.94
MSRP $196.06
Save $63.12
32.2% Off
94580068 - : Engine Block Core Hole Plug for GM Image

Engine Block Core Hole Plug

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$7.43
MSRP $10.35
Save $2.92
28.2% Off
19299110 - : Heater Coolant Heater Seal Kit with Seals and Filter for GM Image

Heater Coolant Heater Seal Kit with Seals and Filter

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors Original equipment parts...
$101.40
MSRP $170.51
Save $69.11
40.5% Off
15968571 - : Hose Asm-Htr Inl for GM Image

Hose Asm-Htr Inl

Helps provide heat to the vehicle interior Constructed from high quality material for a long service life This GM Genuine Part is...
$40.02
MSRP $65.64
Save $25.62
39% Off
9065480 - : Driver Seat Cushion Heater for GM Image

Driver Seat Cushion Heater

GM 9065480
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Discontinued
97365034 - : HVAC Heater Outlet Pipe for GM Image

HVAC Heater Outlet Pipe

Helps circulate coolant Helps prevent engine overheating and damage This GM Genuine Part is designed, engineered, and tested to...
$43.44
MSRP $62.50
Save $19.06
30.5% Off
23361434 - : Rear Seat Heater Harness for GM Image

Rear Seat Heater Harness

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$130.05
MSRP $191.82
Save $61.77
32.2% 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.