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Lexus RX 350 2011 Bulb Size
Bulb size chart
Fog Light Bulb Front - H11 LED
Headlight Bulb High Beam - 9005
Headlight Bulb Low Beam(with halogen headlights) - H11
Headlight Bulb Low Beam(with HID headlights) - D4S
Back Up Reverse Light Bulb - 921
Daytime Running Light Bulb - 9005
Parking Light Bulb - 168
Side Marker Light Bulb Front - 168NA
Side Marker Light Bulb Rear - 168NA
Stepwell Light Bulb - 194
Tail Light Bulb - 168R
Turn Signal Light Bulb Front - 7440A
Turn Signal Light Bulb Rear - 7440A
Interior Door Light Bulb - 168
Map Light Bulb - 168
Trunk or Cargo Area Light - DE3022
H11 LED Bulbs
Used for: Fog Light Bulb Front
9005 Bulbs
Used for: Headlight Bulb High Beam, Daytime Running Light Bulb
H11 Bulbs
Used for: Headlight Bulb Low Beam(with halogen headlights)
D4S Bulbs
Used for: Headlight Bulb Low Beam(with HID headlights)
921 Bulbs
Used for: Back Up Reverse Light Bulb
168 Bulbs
Used for: Parking Light Bulb, Interior Door Light Bulb, Map Light Bulb
168NA Bulbs
Used for: Side Marker Light Bulb Front, Side Marker Light Bulb Rear
194 Bulbs
Used for: Stepwell Light Bulb
168R Bulbs
Used for: Tail Light Bulb
7440A Bulbs
Used for: Turn Signal Light Bulb Front, Turn Signal Light Bulb Rear
DE3022 Bulbs
Used for: Trunk or Cargo Area Light
This page covers the 2011 Lexus RX 350 and helps you verify the correct bulb size by lighting position. Whether you are replacing a burned-out headlight, a reverse light, or an interior lamp, matching the bulb to the exact location is the easiest way to avoid the wrong purchase.
The 2011 RX 350 can use different bulbs depending on trim, lighting package, and market. That is why the chart is organized by function, such as low beam, high beam, fog light, turn signal, map light, and cargo light, so you can quickly find the bulb size that fits your specific position.
For best fitment, always compare your vehicle’s current setup before ordering, especially if your RX 350 has halogen headlights or HID headlights, since the low beam bulb type is different. Some fog light listings may also reflect aftermarket LED conversions rather than a factory halogen bulb, so check what is actually installed on your vehicle. Trim and package differences can change the lighting equipment, and the same model year may use different bulbs in different markets or body styles. If possible, remove the old bulb and confirm the number printed on the base before buying replacements.
FAQ
What is the low beam bulb size for a 2011 Lexus RX 350 with halogen headlights?
The low beam bulb size for 2011 Lexus RX 350 models with halogen headlights is H11.
What is the low beam bulb size for a 2011 Lexus RX 350 with HID headlights?
The low beam bulb size for 2011 Lexus RX 350 models with HID headlights is D4S.
What bulb does the high beam use on the 2011 RX 350?
The high beam bulb size is 9005.
What bulb size is used for the daytime running light on this model?
The daytime running light bulb size is 9005.
What is the front turn signal bulb size on a 2011 Lexus RX 350?
The front turn signal bulb size is 7440A.
What is the rear turn signal bulb size on a 2011 Lexus RX 350?
The rear turn signal bulb size is also 7440A.
What bulb size is used for the backup reverse light?
The backup reverse light bulb size is 921.
What are the front and rear side marker bulb sizes?
Both the front side marker and rear side marker bulb sizes are 168NA.
What bulb size is used for the parking light?
The parking light bulb size is 168.
What bulb size is used for the map light and interior door light?
Both the map light and interior door light use 168 bulbs.
What is the stepwell light bulb size?
The stepwell light bulb size is 194.
What bulb fits the trunk or cargo area light?
The trunk or cargo area light bulb size is DE3022.
What is the fog light bulb size on this page?
The fog light bulb listing shown for the front fog light is H11 LED.
Does the 2011 Lexus RX 350 use the same tail light bulb on every trim?
Not always. The tail light bulb listing on this page is 168R, but trim and lighting package differences can affect fitment, so it is best to verify the installed bulb before ordering.
Why should I check the bulb already installed in my RX 350 before buying replacements?
Checking the installed bulb helps confirm the exact fit, especially when the vehicle has different lighting packages, prior aftermarket changes, or market-specific equipment that may not match the standard listing.