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Gates 12277 HVAC Heater Hose - Heater Inlet
Overview of Gates Molded Heater Hose 12277
The Gates Molded Heater Hose 12277 is designed specifically for Toyota Highlander models, providing reliable HVAC system performance. Constructed from durable EPDM material, this molded heater hose ensures consistent heat transfer and long-lasting service.
- Made from high-quality EPDM rubber for heat and chemical resistance
- Molded design for precise fit and leak prevention
- Centerline length of 14.51 inches (369 mm) for accurate installation
- Inside diameter of 0.62 inches (16 mm) on both ends
- Compatible with Toyota Highlander HVAC systems
Detailed Product Description
The Gates Molded Heater Hose 12277 is engineered to meet the specific HVAC requirements of the Toyota Highlander. Its EPDM construction offers excellent resistance to heat, ozone, and automotive fluids, making it suitable for continuous operation within the vehicle's heating system. The molded design ensures a precise fit, reducing the risk of leaks and improving overall system reliability. With a centerline length of 14.51 inches (369 mm) and consistent inside diameters of 0.62 inches (16 mm) on both ends, this hose integrates seamlessly into the HVAC assembly.
About the Molded Heater Hose Product Line
The Molded Heater Hose line by Gates focuses on delivering hoses that are pre-formed to exact specifications, eliminating the need for bending or shaping during installation. This product line is designed to provide a secure and leak-free connection in vehicle heating systems, enhancing durability and performance. The 12277 part is a representative example tailored for the Toyota Highlander, ensuring compatibility and ease of replacement.
Common Applications and Problem Solving
- Replacement of worn or cracked heater hoses in Toyota Highlander HVAC systems
- Resolving coolant leaks that affect cabin heating efficiency
- Preventing overheating issues caused by compromised heater hose integrity
- Maintaining proper coolant flow within the vehicle’s heating circuit
- Addressing hose deformation or collapse due to age or heat exposure
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 to prevent kinks or stress points. Use appropriate clamps to secure the hose ends firmly without over-tightening, which could 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 12277 is manufactured to meet OEM standards for fit and function. The EPDM material and molded construction contribute to its durability and resistance to common automotive stresses. While specific warranty details are not provided, Gates products typically adhere to industry quality controls to ensure reliable performance in compatible Toyota Highlander models.
| Brand | Gates |
| Part Number | 12277 |
| 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 | 14.51 |
| Centerline Length | 369 |
| Branch Quantity | 0 |
| 9839 | Yes |
| 9845 | 0 |
| Centerline Length (in) | 14.51 |
| Centerline Length (mm) | 369 |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
This part fits 12 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2019 | Toyota | Highlander | 3.5L | V6 | GAS | Heater Inlet | Fitment note: With Rear Heater; Molded Heater Hose |
| 2018 | Toyota | Highlander | 2.7L | L4 | GAS | Heater Inlet | Fitment note: With Rear Heater; Molded Heater Hose |
| 2018 | Toyota | Highlander | 3.5L | V6 | GAS | Heater Inlet | Fitment note: With Rear Heater; Molded Heater Hose |
| 2017 | Toyota | Highlander | 2.7L | L4 | GAS | Heater Inlet | Fitment note: With Rear Heater; Molded Heater Hose |
| 2017 | Toyota | Highlander | 3.5L | V6 | GAS | Heater Inlet | Fitment note: With Rear Heater; Molded Heater Hose |
| 2016 | Toyota | Highlander | 2.7L | L4 | GAS | Heater Inlet | Fitment note: With Rear Heater; Molded Heater Hose |
| 2016 | Toyota | Highlander | 3.5L | V6 | GAS | Heater Inlet | Fitment note: With Rear Heater; Molded Heater Hose |
| 2015 | Toyota | Highlander | 2.7L | L4 | GAS | Heater Inlet | Fitment note: With Rear Heater; Molded Heater Hose |
| 2015 | Toyota | Highlander | 3.5L | V6 | GAS | Heater Inlet | Fitment note: With Rear Heater; Molded Heater Hose |
| 2014 | Toyota | Highlander | 2.7L | L4 | GAS | Heater Inlet | Fitment note: With Rear Heater; Molded Heater Hose |
| 2014 | Toyota | Highlander | 3.5L | V6 | ELECTRIC/GAS | Heater Inlet | Fitment note: With Rear Heater; Molded Heater Hose |
| 2014 | Toyota | Highlander | 3.5L | V6 | GAS | Heater Inlet | Fitment note: With Rear Heater; 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.