OE Quality
60-Day Returns

Gates 12276 HVAC Heater Hose - Radiator To Reservoir or Reservoir To Pipe
Gates Molded Heater Hose for Compact Engine Bays
The Gates Molded Heater Hose, part number 12276, is a factory-molded coolant hose built for tight engine compartments where a straight hose will not route correctly. It is made from EPDM and is approved for coolant, water, air, and marine applications.
Key Features
- Factory-molded, OEM-style shape for accurate routing
- EPDM construction for coolant and heater hose service
- End I.D.: 8 mm (.31 in) on both ends
- Centerline length: 240 mm (9.43 in)
- Compatible with radiator-to-reservoir and reservoir-to-pipe routing
- Gates Molded Heater Hose 12276 for select Chevrolet Trax and Buick Encore applications
Product Details
Gates 12276 is a molded heater hose from the Gates Molded Heater Hose line, built to match the routing needs of modern compact engine bays. The molded shape helps maintain proper hose alignment in applications where space is limited, while the EPDM material supports use in coolant transfer and related fluid or air service. This hose is listed for 2015-2019 Chevrolet Trax radiator to reservoir applications, 2021 Chevrolet Trax radiator to reservoir applications, and 2013-2019 Buick Encore reservoir to pipe applications.
This part cross-references Bosch 13276 for the same application.
Common Replacement Reasons
- Cracked or hardened heater hose material
- Coolant seepage at a molded hose section
- Collapsed hose routing in a tight engine compartment
- Incorrect fitment from a universal straight hose
- Service replacement for Chevrolet Trax or Buick Encore coolant routing
Installation Notes
Verify the hose route, end inside diameter, and centerline length before installation. Confirm whether the vehicle uses radiator-to-reservoir or reservoir-to-pipe routing, since the listed fitment varies by application. For best results, compare the original hose shape and connection points on the Chevrolet Trax or Buick Encore before removal.
Quality Assurance
Gates supplies molded coolant hose components in OEM-style configurations for precise fitment in compact engine layouts. Part number 12276 is built to the listed dimensions and application-specific routing requirements.
| Brand | Gates |
|---|---|
| Part Number | 12276 |
| Position | Molded Heater Hose, Reservoir To Pipe and Radiator To Reservoir |
| Material | Epdm |
| End 1 Inside Diameter | .31 |
| End 1 Inside Diameter | 8 |
| End 2 Inside Diameter | .31 |
| End 2 Inside Diameter | 8 |
| Centerline Length | 240 |
| Centerline Length | 9.43 |
| Branch Quantity | 0 |
| 9839 | Yes |
| 9845 | 0 |
| Centerline Length (in) | 9.43 |
| Centerline Length (mm) | 240 |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
This part fits 32 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2021 | Chevrolet | Trax | 1.4L | L4 | GAS | Radiator To Reservoir | Molded Heater Hose | |
| 2019 | Buick | Encore | Preferred | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2019 | Buick | Encore | Base | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2019 | Buick | Encore | Essence | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2019 | Chevrolet | Trax | 1.4L | L4 | GAS | Radiator To Reservoir | Molded Heater Hose | |
| 2018 | Buick | Encore | CX | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2018 | Buick | Encore | Premium | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2018 | Buick | Encore | Essence | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2018 | Buick | Encore | Preferred | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2018 | Buick | Encore | Preferred II | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2018 | Buick | Encore | Base | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2018 | Buick | Encore | CXL | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2018 | Chevrolet | Trax | 1.4L | L4 | GAS | Radiator To Reservoir | Molded Heater Hose | |
| 2017 | Buick | Encore | Essence | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2017 | Buick | Encore | Preferred | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2017 | Buick | Encore | Preferred II | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2017 | Buick | Encore | CXL | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2017 | Buick | Encore | CX | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2017 | Buick | Encore | Base | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2017 | Buick | Encore | Premium | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2017 | Chevrolet | Trax | 1.4L | L4 | GAS | Radiator To Reservoir | Molded Heater Hose | |
| 2016 | Buick | Encore | Leather | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2016 | Buick | Encore | Base | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2016 | Buick | Encore | Convenience | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2016 | Buick | Encore | CXL | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2016 | Buick | Encore | Premium | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2016 | Buick | Encore | CX | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose |
| 2016 | Chevrolet | Trax | 1.4L | L4 | GAS | Radiator To Reservoir | Molded Heater Hose | |
| 2015 | Buick | Encore | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose | |
| 2015 | Chevrolet | Trax | 1.4L | L4 | GAS | Radiator To Reservoir | Molded Heater Hose | |
| 2014 | Buick | Encore | 1.4L | L4 | GAS | Reservoir To Pipe | Molded Heater Hose | |
| 2013 | Buick | Encore | 1.4L | L4 | GAS | Reservoir To Pipe | 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.