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Tesla Model S/X 2012-2021 Front Right Air Suspension Sensor 1027946-00-B

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Tesla Model S/X 2012-2021 Front Right Air Suspension Sensor 1027946-00-B

Brand Name : CFN

Model Number : 1027946-00-B

Place of Origin : China

MOQ : 1

Price : Negotible

Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram

Delivery Time : 5-10 work days

Packaging Details : 11*10*5 one piece,Box

Position : Front/Rear

Weight : 0.1kg

Damper Type : Gas Pressure

Compatibility : Electric Vehicles

Materia : Composite Material

Size : 11*10*5

Color : Black

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Front Right (Driver Side) Air Suspension Height Level Sensor for Tesla Model S/X (2012-2021) | 1027946-00-B

As the critical "feedback hub" for your Tesla Model S/X’s air suspension system, this OEM-grade height level sensor (Part No. 1027946-00-B) is engineered exclusively for 2012–2021 Model S and Model X vehicles. Mounted on the front right (driver side) suspension assembly, it continuously monitors ride height to keep your Tesla level, stable, and comfortable—whether you’re tackling rough roads, loading passengers, or cruising at highway speeds. A faulty sensor disrupts your air suspension’s precision; this replacement restores the factory-calibrated control you rely on.

1. Key Specifications & Compatibility

Feature	Details
Part Number	1027946-00-B
Compatible Vehicle	Tesla Model S (2012–2021) & Tesla Model X (2012–2021) (all trims equipped with factory air suspension)
Mounting Position	Front right (driver side) suspension—links to the control arm and chassis for direct height tracking
Sensor Type	Hall-effect magnetic sensor (delivers real-time digital data; no analog lag for instant suspension adjustments)
Measurement Range	0–150mm (tracks suspension travel with ±0.5mm accuracy—critical for precise leveling)
Operating Voltage	12V DC (matches Model S/X’s on-board electrical system for stable performance)
Protection Rating	IP6K9K (dust-tight; resistant to high-pressure water jets, road salt, and extreme temperatures: -40℃ to 85℃)
Connector Type	3-pin OEM-matched electrical connector (plug-and-play with factory wiring—no splicing required)

2. Why This Sensor Is Non-Negotiable for Your Air Suspension

Your Tesla’s air suspension relies on accurate height data to function—and the 1027946-00-B sensor is how it gets that data. It performs three make-or-break roles:

Maintains a Level Ride: Detects if the front right side sags (e.g., from heavy cargo in the frunk or front passenger weight) and sends real-time data to the suspension controller. The system then inflates/deflates the front right air spring to balance the vehicle, preventing uneven tire wear and shaky handling.
Enables Driving Mode Adaptability: Works seamlessly with "Comfort," "Sport," and "Highway" modes. It confirms the suspension lowers to reduce aerodynamic drag at high speeds or raises to clear potholes—ensuring each mode works as Tesla intended.
Protects Suspension Components: Alerts the system if the front right suspension is overextended (e.g., hitting a deep pothole), preventing damage to air springs, struts, or control arms.

A failing sensor turns these benefits into headaches: your Model S/X may sag on the front right, bounce uncontrollably over bumps, or trigger "Air Suspension Fault" alerts that limit speed to 50mph (80km/h) for safety.

3. What It Actually Does (No Tech Jargon)

Constant Height Checks: 50 times per second, the sensor uses a built-in magnet to track how far the front right suspension moves up or down. It sends this data to your Tesla’s suspension computer instantly—faster than you can blink.
Fixes Uneven Sagging: If you load a suitcase in the frunk or have a passenger in the front right seat, the sensor notices the front right drops and tells the air spring to inflate. This keeps the car level, so your steering feels tight and your ride stays smooth.
Tough Enough for All Weather: Rain, snow, salted roads, or high-pressure car washes won’t damage it. The IP6K9K rating means it handles even the harshest conditions without shorting out.
No Guesswork: Unlike old analog sensors, this digital Hall-effect sensor never "drifts"—it gives accurate height readings every time, so the suspension reacts instantly to changes in road or load.

4. Signs Yours Needs Replacement

Watch for these red flags—they mean your front right height sensor is failing:

Front Right Sagging: The front right side sits lower than the front left (check tire clearance above the wheel—there will be a visible gap difference).
"Air Suspension Fault" Alert: Your touchscreen shows this warning, and the suspension may lock in "Safe Mode" (no height adjustments, limited speed).
Unstable Ride: The front 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 Don’t Work: The suspension won’t lower for "Highway" mode or raise for "Off-Road" mode (the sensor can’t confirm the suspension reaches the correct height).
Random Height Changes: The front right air spring inflates or deflates for no reason (the sensor is sending false data to the system).

5. Why It Beats Aftermarket Alternatives

Generic height sensors cut corners on fit and calibration—this one is built for your 2012–2021 Model S/X:

Tesla-Exact Programming: Calibrated 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 front right control arm and chassis using factory holes—no drilling, grinding, or zip-ties. The 3-pin connector plugs directly into the original wiring harness (no wire cutting).
Durable Build: The housing is made of glass-filled nylon (resists impact from road debris), and the connector has anti-corrosion plating (prevents rust from road salt).
Long-Lasting Accuracy: Hall-effect technology doesn’t wear out like analog sensors—this one maintains ±0.5mm accuracy for 100,000+ miles (vs. generic sensors that drift after 30,000 miles).

6. Installation & What You Get

1x Front Right (Driver Side) Air Suspension Height Level Sensor (1027946-00-B)
1x Pre-lubricated OEM-spec mounting bolt (torque spec: 8 Nm—matches Tesla’s requirements)
Digital Installation Guide: Step-by-step photos, how to safely lift the front of your Model S/X (without damaging the air suspension), and tips to avoid bending the sensor during installation.

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