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Gates 12486 HVAC Heater Hose
Gates Molded Heater Hose for Tesla S
The Gates 12486 molded heater hose is a factory-molded, OE-style coolant hose built for tight engine and thermal management routing. It is shaped for the 2012-2016 Tesla S left pump to 3-way valve application and uses EPDM construction for coolant, water, and air service.
Key Features
- Factory-molded profile for compact routing in smaller engine compartments
- EPDM construction for coolant, water, and air applications
- Small I.D. molded hose with 18 mm end sizes
- Centerline length: 12.25 in. (311 mm)
- Direct-fit replacement for Tesla S heater hose routing
- Approved for marine applications
Product Details
Gates Molded Heater Hose 12486 is part of the Molded Heater Hose line, which focuses on OE-style hose shapes for modern vehicles with tighter packaging. This hose follows the original routing needed for the Tesla S left pump to 3-way valve connection, helping maintain proper coolant flow through the HVAC and thermal management system. The molded design reduces the need for improvised bends and supports a cleaner, more accurate hose path in the vehicle.
Compatible With 2012-2016 Tesla S, N/A. This part cross-references OSC 13486 for the same application.
Common Issues This Hose Can Address
- Cracked or aged heater hose material
- Coolant seepage at a molded hose connection
- Poor hose routing in tight Tesla S thermal system layouts
- Replacement needs after service on the left pump to 3-way valve line
- Degraded hose flexibility from heat and coolant exposure
Installation Notes and Tips
Verify the hose routing against the original Tesla S layout before installation. Confirm both end diameters and the molded shape match the existing connection points at the left pump and 3-way valve. Inspect adjoining clamps, fittings, and sealing surfaces for wear or contamination before reassembly.
Quality Assurance
Gates manufactures this molded coolant hose to OE-style specifications for fit and routing accuracy. The EPDM material and factory-molded construction support dependable service in coolant, water, air, and marine applications.
| Brand | Gates |
|---|---|
| Part Number | 12486 |
| Position | Molded Heater Hose |
| Material | Epdm |
| End 1 Inside Diameter | .709 |
| End 1 Inside Diameter | 18 |
| End 2 Inside Diameter | .697 |
| End 2 Inside Diameter | 18 |
| Centerline Length | 12.25 |
| Centerline Length | 311 |
| Branch Quantity | 0 |
| 9839 | Yes |
| 9845 | 0 |
This part fits 5 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2016 | Tesla | S | -L | -- | ELECTRIC | N/A | Left Pump To 3-Way Valve; Molded Heater Hose |
| 2015 | Tesla | S | -L | -- | ELECTRIC | N/A | Left Pump To 3-Way Valve; Molded Heater Hose |
| 2014 | Tesla | S | -L | -- | ELECTRIC | N/A | Left Pump To 3-Way Valve; Molded Heater Hose |
| 2013 | Tesla | S | -L | -- | ELECTRIC | N/A | Left Pump To 3-Way Valve; Molded Heater Hose |
| 2012 | Tesla | S | -L | -- | ELECTRIC | N/A | Left Pump To 3-Way Valve; 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.