As a critical structural component of the front aerodynamic and underbody protection system for Tesla Model Y, this CFN-branded left-hand (LH) lower wing bracket is engineered to match OEM specifications, with core functions focusing on "aerodynamic stability + structural support + underbody protection"—reflecting CFN’s commitment to EV-specific structural part durability:
- Aerodynamic Synergy: Serves as the primary mounting base for the Model Y’s front lower wing (spoiler), ensuring the wing maintains its factory-calibrated position (3° downward angle relative to the underbody). This preserves the vehicle’s aerodynamic efficiency (reducing drag coefficient by 0.012, matching OEM performance) and minimizes wind noise at high speeds (100km/h+).
- Structural Load Bearing: Constructed with CFN’s reinforced stamped steel (high-strength 500MPa grade), it withstands front-end dynamic loads—including impact from road debris (e.g., small stones, curbs), aerodynamic pressure (up to 800N at 130km/h), and underbody vibrations. It prevents the lower wing from detaching or shifting during daily driving or light off-road use.
- Underbody Protection Extension: Features a integrated 5mm-thick plastic shielding (PP+GF20 material, added via CFN’s dual-material molding process) that covers the bracket’s exposed edges. This prevents road salt, mud, or water from corroding the bracket’s connection points to the front subframe, extending the component’s service life.
Replace this CFN left-hand lower wing bracket immediately if you observe the following symptoms of wear or damage:
- Lower Wing Misalignment: Visible gap (＞3mm) between the left side of the lower wing and the underbody, or the wing tilting upward/downward (uneven with the right side)—caused by bracket bending or broken mounting points.
- Bracket Corrosion/Damage: Red rust on the steel base (spreading beyond 10mm²), cracked plastic shielding, or deformed bracket edges—indicating loss of structural integrity or corrosion risk to the subframe connection.
- Aerodynamic Anomalies: Increased wind noise from the front underbody, or a noticeable drop in fuel/energy efficiency (＞5% reduction in range) —signaling the bracket’s failure to hold the lower wing in its aerodynamic position.
- Loose Mounting: Rattling noise from the front underbody when driving over bumps, or visible movement of the lower wing when pushing lightly (＞2mm displacement)—due to stripped fastener inserts or bent bracket tabs.
- 1× CFN left-hand lower wing bracket (1551935-S0-B)
- 4× Stainless steel mounting bolts (M8×25mm, OEM-spec thread with lock washers)
- 2× Plastic push clips (for securing the integrated shielding to the underbody)
- 1× Installation guide (with underbody access diagrams and torque marks)
- 1× Anti-corrosion grease packet (for coating bolt threads before installation)
- Socket wrench set (10mm, 13mm)
- Torque wrench (0-50 Nm range)
- Plastic trim removal tool (for detaching the underbody splash guard)
- Jack and jack stands (for lifting the vehicle to access the front underbody)
- Underbody Access: Lift the front of the vehicle with a jack (positioned at the front subframe jack point) and secure with jack stands; remove the front underbody splash guard (6 plastic push clips) to expose the bracket mounting area.
- Old Bracket Removal: If replacing a damaged bracket, remove the 4 mounting bolts (10mm socket) and disconnect the lower wing from the old bracket—take note of the wing’s alignment marks to avoid mispositioning with the new CFN bracket.
- Alignment Check: Align the new CFN bracket’s mounting holes with the subframe’s threaded inserts; ensure the bracket’s plastic shielding faces downward (toward the road) to maximize debris protection.
- Torque Setting: Tighten the mounting bolts to 18±2 Nm (per Tesla’s factory specification)—over-tightening may strip the subframe’s threads, while under-tightening causes bracket movement. Reinstall the underbody splash guard after verification.
- Warranty: 3-year/60,000-kilometer warranty (whichever comes first), covering defects such as steel corrosion (beyond normal wear), bracket bending (without impact damage), or plastic shielding cracking (excludes damage from heavy collisions or off-road abuse).
- Technical Assistance: CFN’s EV structural part specialists are available via email or live chat to provide guidance (e.g., underbody splash guard removal, alignment mark verification) and resolve installation issues.
- Quality Guarantee: If the bracket is incompatible with your Tesla Model Y or has manufacturing defects within 30 days of receipt, CFN offers free replacement or full refund (provided unused and in original packaging).
- Maintenance: Inspect the bracket every 15,000 kilometers—clean the plastic shielding with a high-pressure washer (avoid direct spraying on bolt connections) to remove mud or debris buildup.
- Pairing Note: For balanced aerodynamic performance, replace the left-hand (1551935-S0-B) and right-hand (matching RH part number) brackets together if both show wear—mixing old and new brackets may cause uneven wing alignment.
- Bulk Inquiries: Repair shops or fleet operators can contact CFN’s commercial sales team for bulk pricing—customized packaging (per 10-unit batches) and delivery schedules are available upon request.
