Front Motor Bushing for 2017–2023 Tesla Model 3 / 2020–2023 Model Y | 1109291-00-B / 1109293-00-B / 1109294-00-B (CFN Brand)
This front motor bushing (available in part numbers 1109291-00-B, 1109293-00-B, 1109294-00-B) is an OEM-matching, left/right universal drivetrain component exclusively engineered for 2017–2023 Tesla Model 3 and 2020–2023 Model Y (covering RWD, AWD, and Performance variants with front drive units). The three part numbers represent the same bushing with different batch/OEM coding—all precisely fit the front mounting position of the front motor (drive unit), connecting the motor/transmission assembly to the vehicle’s front subframe. They fully align with Tesla’s original drivetrain layout and NVH (Noise, Vibration, Harshness) control standards, requiring no distinction between left and right during installation. Its core functions focus on vibration damping, drivetrain positioning, and NVH optimization:
Vibration & Noise Suppression: Crafted from elastic rubber composite, it absorbs high-frequency vibrations from the front motor (e.g., during acceleration, deceleration, or idling) and blocks mechanical noise transmission from the drivetrain to the cabin—preserving the Model 3/Y’s signature quiet ride.
Drivetrain Positioning: Maintains the front motor/transmission in the factory-calibrated position, preventing abnormal displacement caused by road bumps or torque fluctuations (e.g., hard acceleration). This avoids misalignment between the motor and driveshaft, which could lead to transmission wear or power loss.
Impact Buffering: Acts as a buffer between the rigid motor and subframe; during sudden torque changes (start-stop, emergency deceleration), it softens impact force between the drivetrain and chassis, reducing mechanical stress and extending component service life.
Crafted from high-performance rubber composite (with a metal inner sleeve for structural support), the bushing balances elasticity, durability, and temperature resistance:
Rubber Material: Uses OEM-grade ethylene-propylene-diene monomer (EPDM) rubber, with excellent elasticity (compression set ≤15% after 72 hours at 100°C) and aging resistance—avoiding cracking, hardening, or degluing even under long-term engine heat and road exposure.
Metal Inner Sleeve: Made of galvanized carbon steel (tensile strength ≥350MPa) with anti-corrosion coating; it ensures structural stability under torque loads, preventing deformation or separation from the motor/subframe.
Environmental Adaptability: Withstands -40°C to 120°C temperature fluctuations (flexible in cold winters, stable in high heat) and resists corrosion from road salt, engine oil, and coolant.
Installation adheres to Tesla’s Model 3/Y service guidelines, taking 30–45 minutes with standard tools (jack stands, 14mm/17mm sockets, torque wrench, pry bar):
Lift the vehicle’s front end, secure with jack stands, and remove the front underbody splash guard to expose the front motor and subframe.
Locate the old bushing: it is mounted at the front of the front motor, secured by a 17mm bolt through the metal inner sleeve into the subframe. Use a 17mm socket to loosen and remove the bolt (avoid overexertion to prevent thread damage).
Use a pry bar to gently separate the old bushing from the motor mounting bracket—if seized, apply a small amount of lubricant (avoid rubber contact) and tap lightly with a rubber mallet; then remove the old bushing.
Clean the motor mounting bracket and subframe bolt holes with a wire brush to eliminate rust, debris, or old lubricant.
Align the CFN bushing (any of the three part numbers) with the motor mounting bracket, insert the bolt through the bushing’s inner sleeve, and hand-tighten into the subframe to avoid cross-threading.
Use a torque wrench to tighten the bolt to Tesla’s official specification (45±3 Nm)—over-tightening compresses rubber excessively (reducing damping performance), while under-tightening causes loose connections and noise.
Reinstall the underbody splash guard, lower the vehicle, and road-test to check for abnormal noises (e.g., “clunking” during acceleration) and confirm smooth power delivery.
Note: While the bushing is universal for left/right, replacing it as a single unit (or two units for full maintenance) ensures consistent drivetrain performance—all three part numbers are interchangeable and meet OEM standards.