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Four Seasons 85902 HVAC Heater Hose Connector
| Brand | Four Seasons 85902 |
|---|---|
| Description | Engine Coolant Components |
| Gasket Or Seal Included | Not Included |
| Inlet Dia. IN | 0.754 |
| Material | Plastic |
| Maximum Height | 3.000 |
| Meets / Exceeds OEM? | Yes |
| Style | w/o Thermostat |
| Thermostat Included? | Not Included |
| Type | Coolant Coupling |
| Product line | Coolant Coupling |
| Fits | Mazda · 6 vehicles |
OE direct replacement. Meets OEM requirements for dependable coolant system service.
Plastic construction. Lightweight design for engine coolant components.
Coolant coupling. Connects heater hose components in the cooling system.
Cross-references Dorman - Conduct-Tite 85902, Motorad CH1001 and 815723 for the same application. See all 14.
Coolant Coupling for Mazda 6
The Four Seasons Coolant Coupling, part number 85902, is an engine coolant component built for the HVAC hose connection on select Mazda 6 models. It uses a plastic construction and meets or exceeds OEM requirements for a direct-fit replacement in the cooling system.
Compatible with 2003-2008 Mazda 6 coolant coupling applications, this Four Seasons Coolant Coupling 85902 is specified with a 0.754 in inlet diameter and a maximum height of 3.000 in. It is supplied without a thermostat and without a gasket or seal.
Key Features
- Brand: Four Seasons Coolant Coupling
- Part number: 85902
- Plastic construction for HVAC heater hose connection use
- 0.754 in inlet diameter
- Maximum height: 3.000 in
- Meets or exceeds OEM specifications
- Style: without thermostat
- Gasket or seal not included
Product Details
Four Seasons 85902 is a coolant coupling used in engine coolant components and HVAC hose and pipe service. It is a direct replacement style part for Mazda 6 cooling system service, helping restore the hose-to-component connection in the heater hose circuit. This part cross-references Motorad CH1001 for the same application.
Common Repair Uses
- Cracked or brittle coolant coupling housing
- Leaking heater hose connection at the coolant fitting
- Cooling system service on a 2003-2008 Mazda 6
- Replacement of a worn HVAC heater hose connector
- Restoring proper coolant flow through the hose connection
Installation Notes
Verify inlet diameter, hose routing, and component orientation before installation. Because the gasket or seal is not included, inspect the sealing surfaces and replace any worn seals as needed during service. Confirm the vehicle application against the 2003-2008 Mazda 6 fitment listing before ordering.
Quality Assurance
Four Seasons lists this coolant coupling as meeting or exceeding OEM specifications for the stated application. Part number 85902 is engineered for the Mazda 6 cooling system and HVAC hose connection service.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2008 | Mazda | 6 | 3.0L | V6 | N/A | Coolant Coupling |
| 2007 | Mazda | 6 | 3.0L | V6 | N/A | Coolant Coupling |
| 2006 | Mazda | 6 | 3.0L | V6 | N/A | Coolant Coupling |
| 2005 | Mazda | 6 | 3.0L | V6 | N/A | Coolant Coupling |
| 2004 | Mazda | 6 | 3.0L | V6 | N/A | Coolant Coupling |
| 2003 | Mazda | 6 | 3.0L | V6 | N/A | Coolant Coupling |
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