OE Quality
60-Day Returns

Gates 19915 HVAC Heater Hose - Heater To Engine (Upper)
Overview of Gates Molded Heater Hose 19915
The Gates Molded Heater Hose 19915 is designed specifically for HVAC systems in select Cadillac and Saab vehicles. Engineered with durable EPDM material, this molded heater hose ensures reliable performance and precise fitment for the Cadillac SRX and Saab 9-4X models.
- Constructed from high-quality EPDM for heat and chemical resistance
- Molded design for exact fit and easy installation
- End 1 inside diameter: 0.72 inches (18 mm)
- End 2 inside diameter: 0.84 inches (21 mm)
- Centerline length: 17.7 inches (450 mm)
- Compatible with Cadillac SRX and Saab 9-4X HVAC systems
Detailed Product Description
The Gates Molded Heater Hose 19915 is part of the Molded Heater Hose product line, which focuses on precision-engineered hoses tailored to specific vehicle HVAC applications. This hose is molded to exact specifications, providing a secure and leak-resistant connection within the heating system. Made from EPDM, it offers excellent resistance to heat, ozone, and automotive fluids, ensuring durability under demanding operating conditions. The hose features two different inside diameters—0.72 inches (18 mm) on one end and 0.84 inches (21 mm) on the other—allowing it to connect seamlessly between components with varying sizes. With a centerline length of 17.7 inches (450 mm), it fits the HVAC routing requirements of the Cadillac SRX and Saab 9-4X models precisely.
Common Applications and Issues Addressed
- Replacement of worn or cracked heater hoses in Cadillac SRX and Saab 9-4X HVAC systems
- Prevention of coolant leaks that can cause engine overheating
- Restoration of proper heater core function and cabin heating performance
- Elimination of hose collapse or blockage affecting coolant flow
- Resolution of HVAC system pressure loss due to damaged hoses
Installation Notes and Tips
Ensure the vehicle is cool before beginning installation to avoid burns from hot coolant. Verify the hose routing matches the original configuration for proper fit. Use appropriate clamps to secure the hose ends without over-tightening, which can damage the EPDM material. Inspect adjacent components for wear or damage during replacement to maintain overall HVAC system integrity.
Quality Assurance and Warranty
Gates Molded Heater Hose 19915 is manufactured to meet OEM specifications for fit, form, and function. The use of EPDM material provides resistance to heat and chemical degradation, contributing to long service life. While specific warranty details are not provided here, Gates products typically come with a limited warranty against defects in material and workmanship. Refer to official Gates documentation for complete warranty information.
| Brand | Gates |
| Part Number | 19915 |
| Position | Molded Heater Hose, Heater To Engine (Upper) |
| Material | Epdm |
| End 1 Inside Diameter | .72 |
| End 1 Inside Diameter | 18 |
| End 2 Inside Diameter | .84 |
| End 2 Inside Diameter | 21 |
| Centerline Length | 17.7 |
| Centerline Length | 450 |
| Branch Quantity | 0 |
| 9839 | Yes |
| 9845 | 0 |
| Centerline Length (in) | 17.7 |
| Centerline Length (mm) | 450 |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
This part fits 12 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2016 | Cadillac | SRX | 3.6L | V6 | FLEX | Heater To Engine (Upper) | Molded Heater Hose |
| 2016 | Cadillac | SRX | 3.6L | V6 | GAS | Heater To Engine (Upper) | Molded Heater Hose |
| 2015 | Cadillac | SRX | 3.6L | V6 | FLEX | Heater To Engine (Upper) | Molded Heater Hose |
| 2015 | Cadillac | SRX | 3.6L | V6 | GAS | Heater To Engine (Upper) | Molded Heater Hose |
| 2014 | Cadillac | SRX | 3.6L | V6 | FLEX | Heater To Engine (Upper) | Molded Heater Hose |
| 2014 | Cadillac | SRX | 3.6L | V6 | GAS | Heater To Engine (Upper) | Molded Heater Hose |
| 2013 | Cadillac | SRX | 3.6L | V6 | FLEX | Heater To Engine (Upper) | Molded Heater Hose |
| 2013 | Cadillac | SRX | 3.6L | V6 | GAS | Heater To Engine (Upper) | Molded Heater Hose |
| 2012 | Cadillac | SRX | 3.6L | V6 | FLEX | Heater To Engine (Upper) | Molded Heater Hose |
| 2011 | Cadillac | SRX | 3.0L | V6 | GAS | Heater To Engine (Upper) | Molded Heater Hose |
| 2011 | Saab | 9-4X | 3.0L | V6 | GAS | Heater To Engine (Upper) | Molded Heater Hose |
| 2010 | Cadillac | SRX | 3.0L | V6 | GAS | Heater To Engine (Upper) | 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.