Introduction
The power liftgate is one of the most convenient features on the Lexus RX. With the push of a button, the rear hatch can automatically open and close, making it easier to load groceries, luggage, tools, and other cargo.
However, like other frequently used vehicle components, the power liftgate system can eventually develop problems. You may notice that the liftgate opens more slowly than before, stops before reaching its full height, moves unevenly, or makes unusual noises during operation.
If you're experiencing these symptoms on a 2016–2019 Lexus RX350 or RX450h, the rear power liftgate struts and related components may need to be inspected.
In this guide, we'll explain the common signs of liftgate problems, how to check compatibility, and the basic process for replacing the rear power liftgate struts.
Common Signs of a Failing Lexus RX Power Liftgate
Before replacing any parts, it's important to understand the symptoms.
Here are some common signs that your Lexus RX power liftgate system may need attention.
1. The Liftgate Opens Slowly
A power liftgate that takes noticeably longer to open than it normally does may indicate a problem with the liftgate support or power mechanism.
If the movement has gradually become slower over time, inspect the liftgate components for wear or damage.
2. The Liftgate Does Not Open Fully
If the rear hatch stops before reaching its normal open position, it can make loading and unloading your vehicle more difficult.
Check the liftgate struts, mounting points, wiring, and other related components to determine the cause.
3. The Liftgate Moves Unevenly
The left and right sides of the liftgate should operate together smoothly.
If one side appears to move differently from the other, the liftgate system should be inspected.
4. Unusual Noise During Operation
Clicking, grinding, popping, or other unusual sounds during opening or closing may indicate wear or damage.
Don't ignore new or increasingly loud noises, especially if they are accompanied by abnormal liftgate movement.
5. The Liftgate Does Not Stay Properly Supported
If the liftgate drops unexpectedly or does not remain securely open, stop using it until the cause has been identified.
A vehicle liftgate is heavy, so proper support is important during both normal use and repair.
Lexus RX350 & RX450h Power Liftgate Compatibility
This OUSIMY rear power liftgate strut application is designed for compatible:
- 2016 Lexus RX350
- 2017 Lexus RX350
- 2018 Lexus RX350
- 2019 Lexus RX350
- 2016 Lexus RX450h
- 2017 Lexus RX450h
- 2018 Lexus RX450h
- 2019 Lexus RX450h
OE Numbers
The relevant OE numbers include:
68920-48031
68920-48030
Lexus parts references identify 68920-48031 as a replacement for the earlier 68920-48030 number.
Important: Vehicle configurations can vary. Always compare your original part number, vehicle year, model, and VIN before ordering.
What Does OE 68920-48031 Mean?
OE numbers are manufacturer part numbers used to identify specific vehicle components.
For this application, 68920-48031 and 68920-48030 are associated with the Lexus power back door system.
If the number on your original component matches one of these numbers, it can help you determine whether this replacement is appropriate.
However, an OE number alone should not be the only factor when checking compatibility.
For the best fit, compare:
- Vehicle year
- Vehicle model
- Engine and configuration
- Original part number
- VIN, when necessary
How to Replace Lexus RX Power Liftgate Struts
Before beginning installation, park the vehicle on a level surface and make sure the liftgate is securely supported.
Because the rear hatch is heavy, do not rely on a damaged or malfunctioning power liftgate system to hold the hatch open during installation.
If you're not familiar with automotive repairs, professional installation is recommended.
Step 1: Open and Secure the Liftgate
Open the rear liftgate and make sure it is fully supported.
Use an appropriate support method to prevent the hatch from unexpectedly moving during the repair.
Never place yourself directly underneath an unsupported liftgate.
Step 2: Locate the Rear Power Liftgate Struts
Locate the power liftgate strut assemblies on both sides of the rear hatch.
Before removing anything, inspect the mounting points and electrical connections.
It's also a good idea to compare the replacement parts with the original components so you can confirm their orientation and connection points.
Step 3: Disconnect the Original Liftgate Strut
Carefully remove the original liftgate strut from its mounting points.
If your vehicle uses an electrical connector on the liftgate strut assembly, disconnect the connector carefully.
Avoid pulling directly on the wiring.
Keep the original hardware organized so you can compare it with the replacement components during installation.
Step 4: Install the OUSIMY Replacement
Position the OUSIMY replacement power liftgate strut in the same orientation as the original.
Secure the mounting points and reconnect the electrical connector if applicable.
Before moving on, make sure:
- Mounting points are properly aligned
- Fasteners are secure
- Electrical connectors are fully connected
- Wiring is not pinched or stretched
Step 5: Replace the Other Side
If you're replacing both sides, repeat the installation procedure on the opposite side.
Replacing matching left and right components can help maintain balanced liftgate operation.
Step 6: Test the Power Liftgate
After installation, carefully test the liftgate.
Check that it:
- Opens smoothly
- Reaches the expected open position
- Closes properly
- Moves evenly
- Operates without unusual noises
- Responds correctly to the vehicle's liftgate controls
If the liftgate does not operate normally after installation, stop using it and recheck the installation and related electrical connections.
Why Replace Both Power Liftgate Struts?
The rear liftgate operates as a system, with components on both sides working together to support and move the hatch.
If one side has significantly more wear than the other, the liftgate may not operate evenly.
Replacing the corresponding left and right components together can help provide more consistent operation.
For this reason, when both sides show signs of wear or the application calls for a matching pair, replacing them together may be preferable to replacing only one side.
Why Choose OUSIMY Power Liftgate Struts?
OUSIMY provides replacement automotive parts designed for specific vehicle applications, including power liftgate components for compatible Lexus RX models.
Direct Replacement Design
The OUSIMY replacement is designed around the specified vehicle application and OE reference numbers to help make replacement easier.
Designed for Everyday Use
Power liftgate components are used frequently, so durability and consistent operation are important for everyday driving.
Restore Liftgate Convenience
A properly functioning power liftgate makes it easier to load and unload groceries, luggage, equipment, and other cargo.
Application-Specific Fit
The product is designed for compatible Lexus RX350 and RX450h applications from the specified model years.
Always verify your vehicle information and OE number before purchasing.
Lexus RX Power Liftgate Installation Video
Prefer to see the installation process before starting?
Watch the OUSIMY power liftgate strut installation video to see the replacement process and get a better understanding of the component location and installation procedure.
[INSERT YOUR INSTALLATION VIDEO HERE]
Before beginning the repair, watch the complete video and make sure you have the necessary tools and proper support for the liftgate.
Frequently Asked Questions
How do I know if my Lexus RX power liftgate struts need replacement?
Common symptoms include slow liftgate movement, incomplete opening, uneven operation, unusual noises, or difficulty maintaining the normal open position.
However, these symptoms can also be caused by other components. Inspect the complete liftgate system before replacing parts.
What vehicles are compatible with these OUSIMY power liftgate struts?
The listed application covers compatible 2016–2019 Lexus RX350 and RX450h models.
Because vehicle configurations can vary, always verify your vehicle information and original OE number before ordering.
What is OE 68920-48031?
68920-48031 is a Lexus power back door assembly reference number associated with the applicable liftgate system.
It is also listed as a replacement for 68920-48030 in Lexus parts references.
Is 68920-48031 the same as 68920-48030?
Lexus parts references show 68920-48031 as a replacement for the earlier 68920-48030 number.
However, you should still verify the part number against your vehicle before purchasing.
Can I install Lexus RX power liftgate struts myself?
Installation may be possible for experienced DIY vehicle owners.
However, the liftgate is heavy and the system may include electrical connections. Properly supporting the liftgate during installation is essential.
If you're unsure about the procedure, professional installation is recommended.
Should I replace both sides at the same time?
If both components show signs of wear, replacing the corresponding left and right components together can help maintain balanced operation.
Follow the specific installation instructions for your vehicle and replacement parts.
Why is my Lexus RX power liftgate still not working after replacing the struts?
If the liftgate continues to malfunction after replacement, the problem may not be limited to the struts.
Other possible causes can include:
- Electrical connections
- Liftgate control components
- Wiring
- Motor or actuator issues
- Sensors
- Mechanical interference
If the problem remains, inspect the complete liftgate system or consult a qualified technician.
Final Thoughts
A properly functioning power liftgate makes everyday use of your Lexus RX more convenient.
If your 2016–2019 Lexus RX350 or RX450h is experiencing slow, uneven, noisy, or unreliable liftgate operation, inspecting the rear power liftgate components is a good place to start.
The OUSIMY Rear Power Liftgate Struts are designed for compatible Lexus RX applications and reference OE 68920-48031 and 68920-48030.
Before ordering, compare your vehicle information and original part number to help ensure the correct replacement.
