Product Specification

Rear Right (Driver Side) Air Suspension Height Level Sensor for Tesla Model S/X (2012-2021) | 1027976-00-A

1. Key Specifications & Compatibility

2. Why This Sensor Is Essential for Your Air Suspension

1. Balances Uneven Loads: Detects if the rear right side sags (e.g., from heavy cargo in the trunk or rear passengers on the right) and sends real-time data to the suspension controller. The system then inflates/deflates the rear-right air spring to level the vehicle, preventing uneven tire wear and shaky steering.
2. Adapts to Driving Conditions: Works seamlessly with "Comfort," "Sport," and "Highway" modes—lowers the rear suspension at high speeds to reduce aerodynamic drag, or raises it to clear potholes and rough terrain (the sensor confirms the suspension reaches the correct height for each mode).
3. Protects High-Cost Components: Alerts the suspension system if the rear-right suspension is overextended (e.g., hitting a deep rut or curb), preventing damage to air springs, struts, or control arms.

3. What It Actually Does (No Tech Jargon)

• Constant Height Monitoring: 50 times per second, the sensor uses a built-in optical disc and magnet to track how far the rear-right suspension moves up or down. It sends this data to your Tesla’s suspension computer instantly—faster than a blink of an eye.
• Fixes Sagging Automatically: If you load a suitcase in the rear trunk or have passengers in the rear right seat, the sensor notices the rear right drop and signals the air spring to inflate. This keeps the car level, so your ride stays smooth and your steering doesn’t pull to one side.
• Withstands Harsh Conditions: Rain, snow, salted winter roads, or high-pressure car washes won’t damage it. The IP6K9K rating ensures it handles even the harshest weather and road grime without shorting out or losing accuracy.
• No Drifting Readings: Unlike old analog sensors, this digital sensor never "drifts" from its calibration. It delivers precise height data every time, so the suspension reacts instantly to changes in load or road surface.

4. Signs Yours Needs Replacement

• Rear Right Sagging: The rear right side sits lower than the rear left (check tire clearance above the wheel—you’ll see a visible gap difference).
• "Air Suspension Fault" Alert: Your touchscreen displays this warning, and the suspension may lock in "Safe Mode" (no height adjustments, limited speed).
• Unstable Ride: The rear right bounces over small bumps, or the vehicle leans heavily to the right during turns (the sensor isn’t sending accurate data to the controller).
• Driving Modes Fail to Work: The suspension won’t lower for "Highway" mode or raise for "Off-Road" mode (the sensor can’t confirm the suspension reaches the required height).
• Random Height Changes: The rear-right air spring inflates or deflates unexpectedly (the sensor is sending false data to the suspension system).

5. Why It Outperforms Aftermarket Alternatives

• Tesla-Exact Calibration: Programmed with the exact height thresholds Tesla uses for Model S/X. No "false fault" alerts (a common issue with generic sensors that don’t match Tesla’s software).
• Perfect, Tool-Free Fit: Mounts to the rear-right suspension arm and sub-frame using factory-drilled holes—no drilling, grinding, or zip-ties needed. The 3-pin connector plugs directly into the original wiring harness (no wire cutting).
• Durable Construction: The sensor housing is made of glass-filled nylon (resists impact from road debris), and the electrical connector has anti-corrosion plating (prevents rust from road salt and moisture).
• Long-Lasting Accuracy: Hall-effect technology avoids wear-related drift (a problem with analog sensors). This sensor maintains ±0.5mm accuracy for long-term use, while generic options often lose precision after 30,000 miles.

6. Installation & What You Receive

• 1x Rear Right (Driver Side) Air Suspension Height Level Sensor (1027976-00-A)
• 2x Pre-lubricated OEM-spec mounting bolts (torque specifications align with Tesla’s official service manual)
• Digital Installation Guide: Step-by-step photos, instructions for safely lifting the rear of your Model S/X (without damaging the air suspension), and tips to avoid bending the sensor’s guide rod during installation.

7. After-Sales Support

• Warranty: Backed by a limited warranty. For detailed coverage terms (e.g., duration, eligible defects), please reach out to our team.
• Technical Assistance: Our EV specialists are available via email or chat to answer installation questions—we’ll help you complete the process smoothly, no matter your experience level.