2018-2025 Lexus LS500 & LS500h Fender Liner: Gas vs. Hybrid Part Differences and Theft Warnings
This guide details the critical differences between fender liners for the gasoline LS500 and the hybrid LS500h, and explains why a damaged liner could be a sign of an attempted theft.
- The most critical factor is that front fender liners for the gasoline LS500 and hybrid LS500h are different parts and are not interchangeable.
- When buying a used liner, prioritize checking for cracks around the mounting holes, as this is the most common failure point.
- A suddenly damaged or missing driver's side fender liner can be a sign of an attempted theft, as thieves access wiring through the wheel well.
- Replacing the plastic retaining clips is highly recommended during installation, as the old ones are almost guaranteed to break upon removal.
Critical Compatibility Warning: LS500 (Gas) vs. LS500h (Hybrid)
Warning: The most important factor when purchasing a replacement front fender liner for a 2018-2025 Lexus LS is your vehicle's powertrain. Lexus uses different part numbers for the gasoline LS500 and the hybrid LS500h. The shape of the liners differs to accommodate unique components in the engine bay of each model. Installing the wrong liner will result in poor fitment, inadequate protection, and potential interference with suspension or engine components. Always verify the part number for your specific model before purchasing.
OEM Fender Liner Part Numbers: 2018-2025 Lexus LS500 & LS500h
Below is a table of known OEM part numbers. Part numbers can be superseded, so it's always best to confirm with a dealer using your vehicle's VIN. Note the distinct part numbers for the front liners on gas and hybrid models.
| Position | Vehicle Model | Part Number | Notes |
|---|---|---|---|
| Front Left (Driver Side) | LS500 (Gasoline) | 53806-50100 | Described as "Without hybrid" by some vendors. |
| Front Left (Driver Side) | LS500h (Hybrid) | 53806-50090 | Described as "With hybrid". |
| Front Right (Passenger Side) | LS500 (Gasoline) | 53805-50100 | Described as "Without hybrid". |
| Front Right (Passenger Side) | LS500h (Hybrid) | 53805-50090 | Specific to the hybrid model. |
| Rear Left (Driver Side) | LS500 & LS500h | 65638-50060 | Fits both models. |
| Rear Right (Passenger Side) | LS500 & LS500h | 65637-50060 | Fits both models. |
Symptoms of a Damaged Fender Liner
- Scraping or Rubbing Noises: The most common symptom is noise from the wheel well area, especially while turning or driving at highway speeds. A loose liner can contact the tire or the road surface.
- Flapping Sounds: If a section of the liner has broken loose, it can flap in the wind, creating a loud and distracting noise.
- Visible Damage: A quick visual inspection can reveal cracks, holes, or missing sections of the plastic liner. You may also see it hanging down below the fender.
- Debris in Engine Bay: If you notice an unusual amount of dirt, mud, or water splashing into the engine compartment, it could be a sign that the fender liner is compromised and no longer providing protection. 🎬 Learn how to pull back the liner to clean debris.
Buying a Used Fender Liner: What to Inspect
A used OEM fender liner is often a better choice than a cheap new aftermarket part. Genuine Lexus liners are made from a more durable, flexible plastic and often include integrated sound-deadening material that aftermarket parts lack. However, inspect a used part carefully before buying.
- Check All Mounting Points: Carefully examine every hole where a clip or screw would go. Look for cracks radiating from these holes. A torn mounting point is the most common reason a liner fails, as it will not sit securely.
- Look for Cracks and Brittleness: Inspect the entire surface for cracks, especially along the edges and curves. Flex the plastic slightly if possible; it should have some give and not feel overly brittle or stiff.
- Verify Integrity of Sound Deadening: The original OEM liner often has a white, fibrous sound absorption pad glued to the back. Ensure this material is present and not waterlogged, torn, or falling apart.
- No Signs of Melting: Check for any areas that look melted or deformed, which could indicate proximity to a hot exhaust component or excessive tire rubbing.
- Confirm the Correct Part Number: Given the differences between the LS500 and LS500h, double-check that the part number on the used liner matches the one required for your vehicle.
Known Issues, Recalls, and Theft Concerns
Vehicle Recalls
As of early 2026, there are no recalls issued by the NHTSA that directly pertain to the fender liners on the 2018-2025 Lexus LS500 or LS500h. However, several recalls exist for other issues like fuel pumps and airbag sensors.
Fender Liner Damage and Vehicle Theft
Pro Tip: Be aware that some modern theft methods involve accessing the vehicle's electronics through the wheel well. Thieves may forcibly tear off or cut the driver's side front fender liner to unplug the headlight and gain access to the CAN bus wiring. If you discover your driver's side liner is suddenly damaged or missing, it could be a sign of a failed theft attempt. Inspect the area for any disconnected or tampered-with wiring.
🎬 See how thieves exploit this wheel well security vulnerability.Cost of Replacement
The cost to replace a fender liner depends on the type of part used and who performs the labor.
| Part Type | Estimated Cost |
|---|---|
| New OEM (Dealer) | $175 - $270 per liner |
| New Aftermarket | $30 - $80 per liner |
| Used OEM | $70 - $150 per liner |
| Shop Labor | $100 - $300 |
DIY Replacement Overview
Replacing a fender liner is a feasible DIY project for those with basic tools. The process generally takes about 30-60 minutes per side.
🎬 Watch this general walkthrough of the fender liner replacement process.- Safety First: Park on a level surface and engage the parking brake.
- Lift and Remove Wheel: Loosen the lug nuts, then jack up the corner of the vehicle and support it with a jack stand. Remove the wheel for full access.
- Remove Fasteners: The liner is held in place by a series of plastic clips and a few screws. Use a trim removal tool or a flathead screwdriver to pry out the center pin of the clips and then remove the clip body. Keep track of any screws, which are often located where the liner meets the bumper and side skirt.
- Deal with Stubborn Clips: Many DIYers report that the original plastic clips become brittle and break during removal. It is highly recommended to purchase a bag of new clips before you start the job. It is often faster to cut the old clips off and replace them.
- Install New Liner: Maneuver the new liner into place, ensuring it tucks correctly behind the fender lip and aligns with the bumper.
- Secure New Liner: Insert the new clips and screws, starting from one end and working your way around to ensure all holes line up. Reinstall the wheel, lower the vehicle, and torque the lug nuts to spec.
Frequently Asked Questions (FAQ)
Do I really need a fender liner?
Yes. Driving without a fender liner exposes your engine bay, suspension components, and vehicle wiring to water, salt, and debris, which can lead to costly corrosion and electrical problems. It is a critical protective part.
Why is a used OEM liner better than a new aftermarket one?
Used OEM (Original Equipment Manufacturer) liners are made from higher-quality materials that fit perfectly and include sound-dampening pads. Aftermarket liners are often made of thinner, more brittle plastic, may not align perfectly with all mounting holes, and typically lack the noise-reducing features of the factory part.
Does the fender liner need to be painted?
No. The fender liners for the Lexus LS500 and LS500h are made of black textured plastic and are not painted. They do not require any color matching.
Can incorrect tire or wheel size damage my fender liner?
Yes. Installing wheels with an improper offset or tires that are too large can cause the tire to rub against the fender liner, especially during turns or suspension compression. This rubbing can quickly wear a hole in the liner, destroying it and potentially damaging the tire.
Helpful Videos
Technical Specifications
OEM Part Numbers: 53806-50100 53806-50090 53805-50100 53805-50090 65638-50060 65637-50060
Material: Black thermoplastic. May include attached fibrous sound-dampening pads.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Lexus LS500:
- Lexus LS500h:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Critical Compatibility Warning: LS500 (Gas) vs. LS500h (Hybrid)
- OEM Fender Liner Part Numbers: 2018-2025 Lexus LS500 & LS500h
- Symptoms of a Damaged Fender Liner
- Buying a Used Fender Liner: What to Inspect
- Known Issues, Recalls, and Theft Concerns
- Vehicle Recalls
- Fender Liner Damage and Vehicle Theft
- Cost of Replacement
- DIY Replacement Overview
- Frequently Asked Questions (FAQ)
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