Dorman - OE Solutions HVAC Heater Hose Connector P/N:800-403

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$24.99
MPN: 800-403
Item Package Quantity: 1
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Dorman - OE Solutions HVAC Heater Hose Connector P/N:800-403
Dorman - OE Solutions HVAC Heater Hose Connector P/N:800-403
$24.99

Keep coolant moving cleanly through the heater circuit with the Dorman - OE Solutions HVAC Heater Hose Connector 800-403, which sits in the heater-to-engine portion of the coolant path and links the heater hose to the engine. It's a direct-fit replacement for the listed applications, including the 2004-2007 Buick Rainier, 2000-2006 Chevrolet Tahoe, 2002-2009 Chevrolet Trailblazer, 1997-2003 Chevrolet Malibu, the 1986-1989 and 1997-2000 Ford F-150, and the 2005-2009 Saab 9-7X — see the Buyer's Guide tab for the full 53-vehicle list across Buick, Cadillac, Chevrolet, Ford, GMC, Oldsmobile, Pontiac and Saab.

  • Heater-to-engine connection: provides the connection point that carries coolant between the engine and the heater hose.
  • Direct-fit replacement: installs on the listed applications as a service replacement for a worn or leaking original connector.
  • Signs it may need replacing: coolant seepage, drips, or corrosion at the heater-hose connection, or low coolant with heater performance complaints — diagnose the source before replacing.

Interchange: 80461 · 4204 · E69Z18D435A · 28500 · 15119175 · 15139564 · 65647 · 905-003 · 905003. Manufacturer part number 800-403.

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

80461, 4204, E69Z18D435A, 28500, 15119175, 15139564, 65647, 905-003

Frequently Asked Questions

What is the Dorman 800-403?

It's an HVAC heater hose connector that sits in the heater-to-engine coolant path, linking the heater hose to the engine so coolant can flow to and from the heater core.

What vehicles does it fit?

It's a direct-fit replacement for 53 applications, including the 2000-2006 Chevrolet Tahoe, 2002-2009 Chevrolet Trailblazer, 1986-1989 and 1997-2000 Ford F-150, and 2005-2009 Saab 9-7X. See the Buyer's Guide tab for the full list.

How do I know the connector needs replacing?

Signs it may need replacing include coolant seepage, drips, or corrosion at the heater-hose connection, or low coolant. Confirm the leak source before replacing, since other components can leak too.

What numbers does this part replace?

It interchanges with 80461, 4204, E69Z18D435A, 28500, 15119175, 15139564, 65647, and 905-003 (905003). Its own manufacturer part number is 800-403.

Does it include hoses or clamps?

This listing is for the heater hose connector 800-403. Consult the vehicle service information for any additional hoses, clamps, or hardware and the correct installation procedure.