Keep coolant flowing between the engine and heater core with the Dorman hvac heater hose connector, part number 800-409. It is an inlet/outlet coolant connector that joins a 3/4 in. tube to a 5/8 in. hose. It fits many vehicles, among them the 2012-2013 Ford F-150, 1999-2014 Chevrolet Silverado 1500 and 2008-2009 Ford F-250. See the "Vehicles it fits" section for the full list and engine details.
The catalog lists this connector for the heater-to-engine and engine-to-heater positions, where it links the heater hose to the coolant tube. It is a direct-fit replacement for the listed applications, and Dorman designs it to replicate the original equipment connector's fit and function.
- Two sizes in one: This Dorman heater hose fitting has a 3/4 in. tube end and a 5/8 in. hose end.
- Durable construction: It is made of quality materials for a precise fit and is designed for leak-free durability.
- Performance tested: Dorman has rigorously pressure tested the connector.
- Cost-effective solution: It offers original equipment quality at a competitive price.
Signs this part may need replacing include coolant seeping at the connection, a cracked or broken fitting, or a coolant level that keeps dropping. If a failed connector is the cause, this Dorman hose connector replaces it. Diagnose the source of any leak before replacing parts.
Interchange: 905-014
905014 · 15032062 · 15151873 · 15151875 · 15792820 · 15792821 · 15792822 · 15834772 · 15834773 · 119020009
This part cross-references / interchanges with the following part numbers:
15032062, 15151873, 15151875, 15792820, 15792821, 15792822, 15834772, 15834773, 905-014, 119020009
Frequently Asked Questions
What does this heater hose connector do?
It joins a 3/4 in. tube to a 5/8 in. hose in the heater hose circuit and carries coolant. The catalog lists it for the heater-to-engine and engine-to-heater positions.
What sizes is this Dorman 3/4 in. heater hose connector?
It is an inlet/outlet coolant connector with a 3/4 in. tube end and a 5/8 in. hose end.
Does it fit the 1999-2014 Chevrolet Silverado 1500?
Yes, the 1999-2014 Chevrolet Silverado 1500 is a listed application, as are the 2012-2013 Ford F-150 and 2008-2009 Ford F-250. Check the "Vehicles it fits" section for your engine.
Has this connector been tested?
Yes. Dorman states that it has been rigorously pressure tested. It is made of quality materials for a precise fit and is designed for leak-free durability.
What are signs a heater hose connector may need replacing?
Coolant seeping at the connection, a cracked or broken fitting, or a coolant level that keeps dropping may indicate a problem with it. Diagnose the leak source before replacing parts.
