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OE Quality
60-Day Returns
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Rein CHH0843 HVAC Heater Hose
OE Heater Hose for Tesla Model 3 and Model Y
The Rein CHH0843 heater hose is an OE-quality replacement built for Tesla thermal system service. It matches the original hose assembly’s size, shape, and thermoplastic quick-connect design for a direct replacement on select Tesla Model 3 and Tesla Model Y applications.
- OE-quality HVAC heater hose for Tesla thermal system repair
- Plastic construction with black finish
- Thermoplastic quick-connect fittings for OE-style connection points
- Clamps included
- End 1 inside diameter: 23.88 mm
- End 2 inside diameter: 23.88 mm
- End 1 outside diameter: 41.33 mm
- End 2 outside diameter: 41.33 mm
Detailed Product Information
Rein CHH0843 is engineered as a direct replacement heater hose for vehicles that use OE No. 107759400F. It is built to follow the original hose routing and connection style, helping maintain proper HVAC coolant flow through the heater circuit. This part cross-references OE numbers 107759400B and 107759400F for the same application.
Compatible With 2018-2023 Tesla Model 3, N/A, and 2020-2023 Tesla Model Y, N/A. The Rein CHH0843 is a practical service part when replacing a worn, cracked, or leaking heater hose assembly on these Tesla platforms.
Common Repair Uses
- Heater hose leakage at the connection points
- Cracked or brittle plastic hose sections
- Damaged thermoplastic quick-connect fittings
- Restricted HVAC coolant circulation from a failing hose assembly
- Service replacement for OE No. 107759400F applications
Installation Notes and Tips
Verify OE number 107759400F before installation and compare the hose routing, connector style, and end diameters to the removed part. Inspect mating ports and surrounding HVAC coolant components for wear or residue before connecting the new hose. Clamps are included, so confirm the existing system uses the supplied clamp style during service.
Quality Assurance
Rein Automotive positions this hose as an OE-quality replacement built to match original manufacturer dimensions and connector design for Tesla heater hose service. Part number CHH0843 is made for direct-fit replacement use on the listed Tesla Model 3 and Model Y applications.
| Brand | Rein |
| Part Number | CHH0843 |
| Material | Plastic |
| Color | Black |
| Clamps Included | Yes |
| End 1 Inside Diameter | 23.88 |
| End 2 Inside Diameter | 23.88 |
| End 1 Outside Diameter | 41.33 |
| End 2 Outside Diameter | 41.33 |
This part fits 10 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2023 | Tesla | 3 | -L | -- | BATTERY EV (EV/BEV) | N/A | w/OE No. 107759400F |
| 2023 | Tesla | Y | -L | -- | BATTERY EV (EV/BEV) | N/A | w/OE No. 107759400F |
| 2022 | Tesla | 3 | -L | -- | BATTERY EV (EV/BEV) | N/A | w/OE No. 107759400F |
| 2022 | Tesla | Y | -L | -- | BATTERY EV (EV/BEV) | N/A | w/OE No. 107759400F |
| 2021 | Tesla | 3 | -L | -- | BATTERY EV (EV/BEV) | N/A | w/OE No. 107759400F |
| 2021 | Tesla | Y | -L | -- | BATTERY EV (EV/BEV) | N/A | w/OE No. 107759400F |
| 2020 | Tesla | 3 | -L | -- | BATTERY EV (EV/BEV) | N/A | w/OE No. 107759400F |
| 2020 | Tesla | Y | -L | -- | BATTERY EV (EV/BEV) | N/A | w/OE No. 107759400F |
| 2019 | Tesla | 3 | -L | -- | BATTERY EV (EV/BEV) | N/A | w/OE No. 107759400F |
| 2018 | Tesla | 3 | -L | -- | BATTERY EV (EV/BEV) | N/A | w/OE No. 107759400F |
* 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.