Rein CHH0837 HVAC Heater Hose

OE Heater Hose for Tesla S

Rein CHH0837 is an OE-quality HVAC heater hose built as a direct replacement for the original hose assembly. It is made for Tesla S applications and follows the factory size, shape, and quick-connect style used on the vehicle.

• EPDM construction for heater hose service
• Black finish
• Clamps included
• End 1 inside diameter: 18.03 mm
• End 2 inside diameter: 15.75 mm
• End 1 outside diameter: 26.01 mm
• End 2 outside diameter: 20.70 mm

Detailed Product Information

This Rein HVAC heater hose is engineered for direct OE-style replacement on Tesla S models. The CHH0837 matches the original hose assembly dimensions and uses thermoplastic quick-connect fittings to follow the factory routing and connection points. Rein CHH0837 is a practical choice when replacing a worn, cracked, or leaking heater hose on 2012-2016 Tesla S vehicles, including 2016 Tesla S built to 3/31/16.

This part cross-references 600735300I for the same application.

Common Repair Uses

• Replacing a heater hose with cracks or soft spots
• Repairing coolant seepage at quick-connect ends
• Restoring heater circuit flow on Tesla S models
• Addressing loss of cabin heat caused by hose leakage
• Correcting fitment issues from a damaged OE hose assembly

Installation Notes and Tips

Verify hose routing, connector style, and end diameters before installation. Inspect mating fittings, seals, and adjacent coolant lines for wear or contamination, and confirm the hose seats fully at both ends. This part includes clamps.

Quality Assurance

Rein positions this hose as an OE-quality replacement built to match original manufacturer dimensions and connection design for Tesla S heater hose service.