OE Quality
60-Day Returns

Gates 19425 HVAC Heater Hose - Heater Inlet
Overview of Gates Molded Heater Hose 19425
The Gates Molded Heater Hose 19425 is designed for reliable HVAC system performance in select Subaru vehicles. Engineered with durable EPDM material, this molded heater hose ensures consistent heat transfer and long-lasting service in Subaru B9 Tribeca, Legacy, Outback, and Tribeca models.
- Constructed from high-quality EPDM for heat and chemical resistance
- Molded design for precise fit and secure connections
- Inside diameter of 0.62 inches (16 mm) on both ends
- Centerline length of 18.5 inches (470 mm) for exact OEM replacement
- No quick connect fittings or branches, matching original equipment specifications
Detailed Product Description
This HVAC heater hose from Gates is part of the Molded Heater Hose product line, which focuses on delivering hoses that are pre-formed to match specific vehicle applications. The molded construction reduces the risk of kinks and ensures proper coolant flow through the heater core system. Made from EPDM, the hose resists heat, ozone, and coolant chemicals, maintaining integrity under demanding engine compartment conditions. The 19425 part number corresponds to a hose with a consistent 0.62 inch (16 mm) inside diameter on both ends and a centerline length of 18.5 inches (470 mm), making it suitable for Subaru B9 Tribeca, Legacy, Outback, and Tribeca models requiring this exact specification.
Applications and Common Issues Addressed
- Replacement of worn or cracked heater hoses in Subaru B9 Tribeca, Legacy, Outback, and Tribeca
- Resolving coolant leaks that cause HVAC system inefficiency
- Preventing overheating due to restricted coolant flow in the heater core
- Eliminating hose collapse or kinking that disrupts heater performance
- Maintaining proper cabin heating functionality during cold weather
Installation Notes and Tips
Ensure the engine is cool before removing the old heater hose to avoid burns from hot coolant. Verify the hose routing matches the original configuration to prevent kinks or interference with other engine components. Use appropriate clamps to secure the hose ends firmly without over-tightening, which can damage the hose. Inspect surrounding components for wear or damage during installation to maintain overall HVAC system reliability.
Quality Assurance and Warranty
Gates Molded Heater Hose 19425 is manufactured to meet or exceed OEM specifications for fit, form, and function. The EPDM material and molded design contribute to durability and resistance against heat and chemical exposure. While specific warranty details are not provided, Gates products typically come with a limited warranty against defects in materials and workmanship, supporting dependable performance in Subaru HVAC systems.
| Brand | Gates |
| Part Number | 19425 |
| Position | Molded Heater Hose, Heater Inlet |
| Material | Epdm |
| End 1 Inside Diameter | .62 |
| End 1 Inside Diameter | 16 |
| End 2 Inside Diameter | .62 |
| End 2 Inside Diameter | 16 |
| Centerline Length | 18.5 |
| Centerline Length | 470 |
| Branch Quantity | 0 |
| 9839 | Yes |
| 9845 | 0 |
| Centerline Length (in) | 18.5 |
| Centerline Length (mm) | 470 |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
This part fits 21 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2010 | Subaru | Tribeca | 3.6L | H6 | GAS | Heater Inlet | Molded Heater Hose |
| 2009 | Subaru | Legacy | 2.5L | H4 | GAS | Heater Inlet | Molded Heater Hose |
| 2009 | Subaru | Outback | 2.5L | H4 | GAS | Heater Inlet | VIN 4th Digit B; Molded Heater Hose |
| 2009 | Subaru | Outback | 3.0L | H6 | GAS | Heater Inlet | Molded Heater Hose |
| 2009 | Subaru | Tribeca | 3.6L | H6 | GAS | Heater Inlet | Molded Heater Hose |
| 2008 | Subaru | Legacy | 2.5L | H4 | GAS | Heater Inlet | Molded Heater Hose |
| 2008 | Subaru | Legacy | 3.0L | H6 | GAS | Heater Inlet | Molded Heater Hose |
| 2008 | Subaru | Outback | 2.5L | H4 | GAS | Heater Inlet | VIN 4th Digit B; Molded Heater Hose |
| 2008 | Subaru | Outback | 3.0L | H6 | GAS | Heater Inlet | Molded Heater Hose |
| 2008 | Subaru | Tribeca | 3.6L | H6 | GAS | Heater Inlet | Molded Heater Hose |
| 2007 | Subaru | B9 Tribeca | 3.0L | H6 | GAS | Heater Inlet | Molded Heater Hose |
| 2007 | Subaru | Legacy | 2.5L | H4 | GAS | Heater Inlet | Molded Heater Hose |
| 2007 | Subaru | Outback | 2.5L | H4 | GAS | Heater Inlet | VIN 4th Digit B; Molded Heater Hose |
| 2007 | Subaru | Outback | 3.0L | H6 | GAS | Heater Inlet | Molded Heater Hose |
| 2006 | Subaru | B9 Tribeca | 3.0L | H6 | GAS | Heater Inlet | Molded Heater Hose |
| 2006 | Subaru | Legacy | 2.5L | H4 | GAS | Heater Inlet | Molded Heater Hose |
| 2006 | Subaru | Outback | 2.5L | H4 | GAS | Heater Inlet | VIN 4th Digit B; Molded Heater Hose |
| 2006 | Subaru | Outback | 3.0L | H6 | GAS | Heater Inlet | Molded Heater Hose |
| 2005 | Subaru | Legacy | 2.5L | H4 | GAS | Heater Inlet | Molded Heater Hose |
| 2005 | Subaru | Outback | 2.5L | H4 | GAS | Heater Inlet | VIN 4th Digit B; Molded Heater Hose |
| 2005 | Subaru | Outback | 3.0L | H6 | GAS | Heater Inlet | Molded Heater Hose |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.