OE Quality
60-Day Returns

Gates 19224 HVAC Heater Hose - Heater To Engine
Overview of Gates Molded Heater Hose 19224
The Gates Molded Heater Hose 19224 is designed for reliable HVAC system performance in select Chevrolet and GMC vehicles. Engineered with durable EPDM material, this molded heater hose ensures proper coolant flow and heater function for models like the Chevrolet Blazer, GMC Jimmy, S10, and Sonoma.
- Constructed from high-quality EPDM for heat and chemical resistance
- Molded design for precise fit and secure installation
- End 1 inside diameter: 0.62 inches (16 mm)
- End 2 inside diameter: 0.74 inches (19 mm)
- Centerline length: 21.2 inches (538 mm)
- No quick connect fittings or branches, simplifying installation
Detailed Product Description
The Gates Molded Heater Hose 19224 is part of the Molded Heater Hose product line, which focuses on delivering pre-formed hoses that match OEM specifications for HVAC systems. This hose is molded to exact dimensions, including a centerline length of 21.2 inches (538 mm), and features two different inside diameters at each end—0.62 inches (16 mm) and 0.74 inches (19 mm)—to accommodate specific connection points within the heating system. Made from EPDM, the hose offers resistance to heat, ozone, and coolant chemicals, ensuring durability and longevity in demanding engine environments.
Compatible Vehicles and Applications
This heater hose is compatible with various Chevrolet and GMC models, including:
- Chevrolet Blazer
- GMC Jimmy
- Chevrolet S10
- GMC Sonoma
It is designed to maintain proper coolant flow to the heater core, supporting effective cabin heating and HVAC system operation.
Common Issues Addressed by This Heater Hose
- Leaking or cracked heater hoses causing coolant loss
- Reduced heater core performance due to hose degradation
- Improper hose fit leading to coolant flow restrictions
- Premature hose failure from heat and chemical exposure
- Replacement of worn or damaged OEM heater hoses
Installation Notes and Tips
- Verify hose dimensions and fitment with vehicle make and model before installation
- Ensure all clamps and connections are secure to prevent leaks
- Drain coolant system prior to hose removal to avoid spills
- Inspect surrounding components for wear or damage during installation
- Use proper tools to avoid damaging the molded hose ends
Quality Assurance and Warranty
Gates Molded Heater Hose 19224 is manufactured to meet strict quality standards for HVAC hoses. The EPDM material and molded construction provide reliable performance under typical operating conditions. While specific warranty details may vary, Gates products generally come with a limited warranty against defects in materials and workmanship, ensuring confidence in the replacement part.
| Brand | Gates |
| Part Number | 19224 |
| Position | Molded Heater Hose, Heater To Engine |
| 0 | |
| Yes | |
| Branch Quantity | 0 |
| Centerline Length | 21.2 |
| Centerline Length | 538 |
| Centerline Length (in) | 21.2 |
| Centerline Length (mm) | 538 |
| End 1 Inside Diameter | .62 |
| End 1 Inside Diameter | 16 |
| End 2 Inside Diameter | .74 |
| End 2 Inside Diameter | 19 |
| Material | EPDM |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1995 | Chevrolet | Blazer | 4.3L | V6 | GAS | Heater To Engine | Molded Heater Hose |
| 1995 | Chevrolet | S10 | 4.3L | V6 | GAS | Heater To Engine | Molded Heater Hose |
| 1995 | GMC | Jimmy | 4.3L | V6 | GAS | Heater To Engine | Molded Heater Hose |
| 1995 | GMC | Sonoma | 4.3L | V6 | GAS | Heater To Engine | Molded Heater Hose |
| 1994 | Chevrolet | S10 | 4.3L | V6 | GAS | Heater To Engine | Molded Heater Hose |
| 1994 | GMC | Sonoma | 4.3L | V6 | GAS | Heater To Engine | 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.