Upgrade or restore the rear lower section of your Tesla Model 3 with this OEM-style Rear Lower Bumper Diffuser Cover, designed to match the factory fit and appearance of original Tesla rear underbody trim components. Compatible with Tesla Model 3 vehicles from 2017–2021, this rear lower guard plate helps protect the lower rear bumper area while maintaining the clean aerodynamic styling Tesla owners expect.
Manufactured to OEM specifications using durable automotive-grade materials, this rear diffuser lower cover is ideal for replacing damaged, scratched, cracked, or missing original trim pieces caused by road debris, parking curbs, or daily driving wear.
Whether you are repairing accident damage or refreshing the rear bumper appearance before resale, this replacement diffuser cover restores a clean factory-style finish without requiring complicated modifications.



Key Features
OEM Part Number Compatibility
- OEM Reference: 1135412-00-A
- Designed for direct replacement and repair applications
- Factory-style fitment for Tesla Model 3 rear lower bumper area
Precision Fit for Tesla Model 3
Compatible with:
| Tesla Model | Year |
|---|---|
| Tesla Model 3 | 2017 |
| Tesla Model 3 | 2018 |
| Tesla Model 3 | 2019 |
| Tesla Model 3 | 2020 |
| Tesla Model 3 | 2021 |
Durable Automotive-Grade Construction
Built using lightweight yet durable materials designed to withstand:
- Daily road debris
- Water exposure
- Minor impacts
- Temperature changes
- Long-term outdoor use
Restore Clean OEM Appearance
A damaged rear lower diffuser area can make the rear bumper look worn or incomplete. This replacement cover helps restore the original streamlined Tesla rear-end appearance while maintaining proper lower bumper protection.
Many Tesla owners replace this part after scraping steep driveways, hitting parking blocks, or noticing loosened lower trim after highway driving.
Easy Replacement Installation
Designed for OEM-style mounting locations for easier installation during bumper repair or replacement projects.
Professional installation is recommended for the best alignment and fitment results.
Product Specifications
| Specification | Details |
|---|---|
| Product Name | Rear Lower Bumper Diffuser Cover |
| OEM Part Number | 1135412-00-A |
| Vehicle Compatibility | Tesla Model 3 |
| Compatible Years | 2017-2021 |
| Position | Rear Lower Bumper |
| Condition | New |
| Purpose | Replacement / Repair |
| Warranty | 1 Year |
| Package Size | 48 × 18 × 4 cm |
| Weight | Approx. 0.200 kg |
| Material | Automotive-Grade Plastic |
| Installation Type | OEM Replacement Fit |
Real-World Usage Scenario
After several winters and frequent highway driving, many Model 3 owners notice scratches or loosened clips around the rear lower bumper area. Replacing the lower diffuser cover is a simple way to refresh the rear appearance without replacing the entire bumper assembly. Drivers often mention the rear end immediately looks cleaner and more complete once the damaged trim piece is replaced.
Package Includes
- 1 × Rear Lower Bumper Diffuser Cover
- OEM-Compatible Replacement Part
- Secure Protective Packaging
FAQ
Is this an original Tesla OEM part?
This product is an OEM-style replacement designed to match Tesla OEM specifications and fitment standards using OEM reference number 1135412-00-A.
Will this fit all Tesla Model 3 versions?
It is compatible with Tesla Model 3 vehicles produced between 2017 and 2021. Compatibility may vary slightly depending on regional production differences, so checking your OEM part number before ordering is recommended.
Does this part affect aerodynamics?
The rear lower diffuser area contributes to the factory underbody airflow design and rear bumper appearance. Replacing damaged panels helps maintain the original structure and finish.
Is installation difficult?
Installation is generally straightforward for body repair professionals or experienced DIY users familiar with bumper trim removal.
Can this replace a scratched or cracked diffuser cover?
Yes. It is commonly used to replace worn, scratched, broken, or missing rear lower bumper trim pieces.
