Rear Drive Unit Motor Mount For 2012-2021 Tesla Model S/Model X | 1028034-00-B

1. Core Function Description

1. Rear Motor Secure Fixation: It acts as a "bridge" between the rear drive unit motor and the vehicle chassis, adopting a 3-point reinforced mounting structure to lock the motor in its factory position. This prevents lateral displacement or vertical 窜动 of the motor during high-speed acceleration, regenerative braking, or rough road driving—avoiding damage to connected components such as rear drive shafts, power cables, and cooling pipelines.
2. Multi-Frequency Vibration Damping: The mount integrates a dual-layer composite damping structure (high-elasticity EPDM rubber + metal buffer sheet) that targets the 12-400Hz vibration range of Tesla’s rear drive motor. It absorbs over 85% of low-frequency vibration (generated during steady-speed driving) and high-frequency impact (caused by sudden torque changes), significantly reducing rear-end hum and rattling transmitted to the cabin.
3. Chassis Load Protection: With a "radial load dispersion" design, it evenly distributes the rear motor’s weight (about 100-120kg) to 4 key chassis load-bearing points. This avoids local stress concentration that could lead to chassis deformation or suspension misalignment, ensuring long-term stability of the vehicle’s rear-end handling.

2. Specification Parameter Table

3. Fault Judgment (Signs for Replacement)

• Rear Cabin Noise: A continuous "low-frequency hum" from the rear end during highway driving (80-120km/h) or "knocking" sounds when accelerating/braking suddenly—caused by worn damping rubber or detached buffer sheets.
• Visible Component Damage: The mount body is bent, cracked, or has broken mounting lugs; the damping rubber is split, bulging, or has fallen off the aluminum base—resulting in loss of motor support and vibration isolation functions.
• Rear Motor Misalignment: Uneven wear on the rear tires (e.g., faster wear on the outer edge), or a "wobble" feeling when the vehicle is driving straight—triggered by mount deformation that shifts the rear motor out of its original position.
• Loose Fixing Bolts: Bolts connecting the mount to the chassis or rear motor keep loosening (even after re-tightening), which is a sign of worn mounting holes or reduced structural stability of the mount.

4. Advantages of Premium Brand-Grade (vs. Generic Products)

5. Installation Details

5.1 Package Contents

• 1× Rear drive unit motor mount (1028034-00-B)
• 3× High-tensile fixing bolts (Tesla original-spec M10×1.5, pre-coated with anti-seize compound to prevent thread galling)
• 1× Torque specification card (recommended torque: 38±2Nm for chassis bolts, 43±2Nm for motor bolts—complies with Tesla service manual standards)
• 1× Silicone lubricant packet (for coating the damping rubber surface, reducing friction and extending rubber service life)

5.2 Installation Tools Required

• Torque wrench (range: 0-100Nm, for precise bolt tightening)
• Socket set (12mm, 15mm—matches the size of fixing bolts)
• Hydraulic jack + heavy-duty jack stands (for lifting the vehicle’s rear end and supporting the rear drive motor)
• Wire brush + rust remover (for cleaning rust, oil, or debris from chassis and motor mounting points)

5.3 Installation Precautions

1. Safety Preparation: Before disassembling the old mount, lift the vehicle’s rear end with a hydraulic jack and secure it with jack stands—never rely solely on the jack to avoid the rear motor dropping and causing injury.
2. Disassembly Order: First remove the 2 bolts connecting the mount to the rear motor, then the 1 bolt connecting it to the chassis; avoid pulling the mount forcefully to prevent damage to nearby power cables or cooling pipelines.
3. Cleaning Step: Use rust remover and a wire brush to thoroughly clean the mounting surfaces of the chassis and rear motor—ensure no rust or debris remains, as gaps can cause abnormal noise after installation.
4. Torque Control: Use a calibrated torque wrench to tighten bolts to the recommended values; over-tightening may deform the mount body, while under-tightening leads to mount looseness and vibration.

6. After-Sales Support

• Warranty Service: Provides a 3-year/70,000-kilometer warranty (whichever comes first). During the warranty period, if the mount body bends/cracks (non-human damage) or the damping rubber fails prematurely, a free replacement will be provided.
• Technical Assistance: Dedicated EV technicians are available via email or online chat to answer installation questions (e.g., rear motor positioning, torque verification) and troubleshoot post-installation issues (e.g., abnormal rear-end noise).
• Compatibility Guarantee: If the mount is incompatible with your 2012-2021 Model S/Model X (confirmed via VIN check), 7-day no-reason return is supported (product must be uninstalled and packaging intact).

7. Conversion Guidance