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OE Quality
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Rein CHH0834 HVAC Heater Hose
OE Heater Hose for Tesla S
Rein CHH0834 is an OE-quality heater hose built for direct replacement on select Tesla S applications. It matches the original hose assembly’s size, shape, and thermoplastic quick-connect design for a factory-style service fit.
Key Features
- Direct replacement HVAC heater hose for Tesla S
- EPDM construction for heat and coolant exposure resistance
- Black finish for an OE-style appearance
- Includes clamps
- End 1 inside diameter: 18.80 mm
- End 2 inside diameter: 18.80 mm
- End 1 outside diameter: 25.83 mm
- End 2 outside diameter: 25.83 mm
Detailed Description
Rein CHH0834 is an HVAC heater hose engineered as a direct OE replacement for Tesla S models equipped with OE part number 103785700A. Rein builds this hose to mirror the original hose assembly, including branch geometry and quick-connect fitment details, so it installs in the same location and follows the factory routing. This part cross-references OE number 103785700A for the same application.
Compatible With 2012-2015 Tesla S, N/A. Compatible With 2016 Tesla S, N/A, to 3/31/16. The Rein CHH0834 heater hose is a practical service part for restoring coolant flow through the HVAC system on these Tesla S model years.
What It Helps Resolve
- Coolant seepage from a worn heater hose
- Cracked or hardened EPDM hose material
- Damaged quick-connect ends or hose branches
- Loss of heater performance from restricted coolant circulation
- Service replacement for OE hose assembly 103785700A
Installation Notes and Tips
Verify OE number 103785700A before installation and confirm the vehicle build date for 2016 Tesla S applications through 3/31/16. Inspect mating connections, routing points, and adjacent hoses for wear before reassembly. Use the included clamps during installation and ensure all connections are fully seated and leak-free after refill and bleed procedures.
Quality Assurance
Rein Automotive focuses on OE-quality replacement parts that follow original equipment dimensions and connection design. CHH0834 is built to match the factory hose assembly for consistent fit and serviceability on the specified Tesla S applications.
| Brand | Rein |
| Part Number | CHH0834 |
| Material | Epdm |
| Color | Black |
| Clamps Included | Yes |
| End 1 Inside Diameter | 18.80 |
| End 2 Inside Diameter | 18.80 |
| End 1 Outside Diameter | 25.83 |
| End 2 Outside Diameter | 25.83 |
This part fits 5 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2016 | Tesla | S | -L | -- | BATTERY EV (EV/BEV) | N/A | To 3/31/16, w/OE No. 103785700A |
| 2015 | Tesla | S | -L | -- | BATTERY EV (EV/BEV) | N/A | w/OE No. 103785700A |
| 2014 | Tesla | S | -L | -- | BATTERY EV (EV/BEV) | N/A | w/OE No. 103785700A |
| 2013 | Tesla | S | -L | -- | BATTERY EV (EV/BEV) | N/A | w/OE No. 103785700A |
| 2012 | Tesla | S | -L | -- | BATTERY EV (EV/BEV) | N/A | w/OE No. 103785700A |
* 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.