Rear Shock Absorber Upper Mount Rubber for Tesla Model Y/3 (2017-2023) | CFN Brand | 10444403

1. Core Function Description

1. Tailored Vibration & Noise Reduction: Made of CFN’s proprietary high-density EPDM rubber (optimized for rear suspension dynamics), it absorbs 75%+ of road vibrations (e.g., from uneven pavements, gravel roads) and isolates low-frequency suspension noise (15-400Hz) from the cabin. This preserves Model Y/3’s quiet ride, especially critical for rear-seat passenger comfort.
2. Rear-Load Adaptability: Designed to withstand the variable loads of rear suspension (axial loads up to 16kN, radial loads up to 10kN), it maintains stable connection between the rear shock absorber and vehicle frame—even when carrying heavy cargo (e.g., 500kg+ in Model Y’s frunk + trunk). It prevents shock absorber misalignment during acceleration, braking, or cornering.
3. All-Weather Durability: Through CFN’s unique rubber modification process, the EPDM material is infused with anti-ozone, anti-aging, and anti-chemical additives. It resists extreme temperatures (-40℃ to 110℃, from rear brake heat), road salt corrosion, and engine oil spills—avoiding rubber hardening, cracking, or deformation for long-term use.

2. Specification Parameter Table

3. Fault Judgment (Signs for Replacement)

• Rear Cabin Noise: Abnormal "squeaking" or "thudding" from the rear suspension when driving over bumps—caused by degraded rubber losing vibration isolation, leading to metal-to-metal contact between the shock absorber and frame.
• Rear Suspension Misalignment: Uneven rear tire wear (e.g., outer edge of rear tires wearing faster) or vehicle "drifting" to one side during straight driving—due to cracked or deformed rubber altering the shock absorber’s camber angle.
• Visible Rubber Damage: Surface cracks (longer than 4mm), hardening (Shore hardness >78 HA, tested with a durometer), or separation between rubber and metal insert—these compromise the mount’s load-bearing capacity and structural safety.
• Reduced Ride Comfort: Rear end of the vehicle "bouncing" excessively over rough roads or feeling unstable during high-speed (100km/h+) driving—indicative of rubber losing stiffness and failing to dampen shock absorber movement.

4. Advantages of CFN Brand (vs. Generic Products)

5. Installation Details

5.1 Package Contents

• 1× CFN rear shock absorber upper mount rubber (10444403)
• 3× Hot-dip galvanized mounting bolts (M8×18mm, Tesla OEM-spec thread with anti-loose washers)
• 1× Installation guide (with rear suspension disassembly diagrams and alignment marks)
• 1× Silicone lubricant packet (for reducing friction between the mount and shock absorber flange)

5.2 Required Tools

• Socket wrench set (10mm, 12mm)
• Torque wrench (0-40 Nm range)
• Rear suspension spring compressor (to safely 卸下 the shock absorber)
• Plastic pry tool (for removing old mount without scratching the rear frame)

5.3 Installation Precautions

1. Safety Preparation: Lift the rear of the vehicle with a jack and secure it with jack stands (do not rely on the jack alone); remove the rear wheel to access the suspension.
2. Shock Absorber Removal: Use a spring compressor to compress the rear suspension spring, then remove the shock absorber’s upper mounting bolts—avoid sudden release of spring force (risk of injury).
3. Mount Alignment: Align the new CFN mount’s metal insert with the shock absorber’s upper flange; ensure the mounting holes match the rear frame (do not twist the rubber, as this accelerates wear).
4. Torque Specification: Tighten the mounting bolts to 19±2 Nm (per Tesla’s factory standard)—over-tightening crushes the rubber, while under-tightening causes rear suspension rattling.

6. After-Sales Support (CFN Brand)

• Warranty: 3-year/50,000-kilometer warranty (whichever comes first), covering defects such as rubber cracking, hardening, or separation from the metal insert (excludes damage from improper installation, collision, or overloading).
• Technical Assistance: CFN’s EV suspension specialists are available via email or live chat to provide guidance (e.g., spring compressor operation, post-installation alignment checks) and resolve troubleshooting issues.
• Quality Guarantee: If the mount is incompatible with your Model Y/3 (2017-2023) or has quality defects within 30 days of receipt, CFN offers free replacement or full refund (provided unused and in original packaging).

7. Usage & Bulk Tips

• Maintenance: Inspect the rear mount rubber every 20,000 kilometers—clean surface dirt with a mild soap solution (avoid harsh chemicals like diesel, which degrade EPDM).
• Pair Replacement: For balanced rear suspension performance, replace both left and right rear shock absorber upper mount rubbers simultaneously (even if only one shows wear).
• Bulk Inquiries: Repair shops or fleet operators can contact CFN’s commercial sales team for bulk pricing—customized delivery plans and on-site installation training are available upon request.