Dorman - OE Solutions HVAC Heater Hose Assembly 626-103
Dorman - OE Solutions HVAC Heater Hose Assembly 626-103 - view 2
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Dorman - OE Solutions HVAC Heater Hose Assembly 626-103
Dorman - OE Solutions HVAC Heater Hose Assembly 626-103 - view 2
Dorman - OE Solutions HVAC Heater Hose Assembly 626-103 - view 3

Heater Hose for 1989-1992 Chevrolet S10 & More - Dorman 626-103

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$29.99
MPN: 626-103
Item Package Quantity: 1
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Dorman - OE Solutions HVAC Heater Hose Assembly P/N:626-103
Dorman - OE Solutions HVAC Heater Hose Assembly P/N:626-103
$29.99

Route hot engine coolant to and from the heater core with the Dorman heater hose assembly, part number 626-103. This heater hose/tube assembly is designed to withstand extreme temperature changes. It fits many vehicles, among them the 1989-1992 Chevrolet S10, 1989-1992 Chevrolet S10 Blazer and 1992 GMC Jimmy. See the Buyer's Guide tab for the full list and engine details.

Dorman engineered this HVAC heater hose assembly to match the fit and durability of the stock heater hose assembly. It directly replaces the original heater hose on the listed applications.

  • Direct replacement: Takes the place of the original heater hose on the listed vehicles.
  • Durable construction: Designed to handle extreme temperature changes and to resist cracking and leaking.
  • Cost-effective and reliable: Offers original manufacturer quality at a lower cost than a dealer replacement.
  • Industry-leading design: Engineered by Dorman, which describes itself as the aftermarket leader in heater hose assemblies.

A heater hose may need replacing if you see coolant leaking or dripping near the hose, cracked or swollen sections, a coolant level that keeps dropping, or weak heat from the vents. Other cooling-system parts can cause similar symptoms, so diagnose the cause first. If a failed heater hose is the problem, this assembly replaces it.

Interchange: 15642506

This part cross-references / interchanges with the following part numbers:

15642506

Frequently Asked Questions

Is this the right S10 heater hose for a 1989-1992 Chevrolet S10?

It is listed for the 1989-1992 Chevrolet S10 and the 1989-1992 Chevrolet S10 Blazer. Check the Buyer's Guide tab to confirm your exact vehicle and engine.

What does a Dorman heater hose do?

It carries engine coolant between the engine and the heater core. The HVAC system uses that heat to warm the cabin.

How is this assembly built to hold up?

Dorman designs it to withstand extreme temperature changes and to resist cracking and leaking.

What are signs my heater hose may need replacing?

Common signs include coolant leaks near the hose, visible cracks, a falling coolant level or weak heat from the vents. Diagnose the cause first, because other cooling parts can cause similar symptoms.

What should I know before installing it?

Let the engine cool fully before you start, because the cooling system holds hot coolant under pressure. Follow the vehicle service information for draining, refilling and bleeding the system.

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