Used for: Back Up Reverse Light Bulb
Used for: Turn Signal Light Bulb Front
Used for: Turn Signal Light Bulb Rear
Used for: Dome Light Bulb, Map Light Bulb
Used for: Dome Light Bulb, Map Light Bulb
Used for: Trunk or Cargo Area Light
Used for: Trunk or Cargo Area Light
The 2021 Honda Insight uses a mostly LED lighting setup, and this page is designed to help you verify bulb sizes by lighting position before you buy replacements. Whether you are checking the front, rear, or interior lights, matching the bulb to the correct location is the safest way to avoid ordering the wrong part.
For the 2021 Honda Insight, many exterior bulbs are listed as LED from the factory, while a few interior and reverse light positions use replaceable bulb sizes. Because trim and lighting equipment can vary, it is always smart to confirm the exact bulb type for your specific Insight before replacing anything.
Fitment can vary by trim, package, market, and body style, so the same 2021 Honda Insight may not use the exact same lighting setup in every position. Some vehicles may have LED assemblies that are replaced as a unit rather than with a single bulb, and others may differ between halogen-style service parts and factory LED equipment. If you are considering an aftermarket LED conversion, make sure the bulb base, polarity, beam pattern, and heat management are compatible with your housing. The best practice is to check the installed bulb before purchase, especially for interior lights, reverse lights, and any position that may have been changed by a previous owner.
The bulb chart for the 2021 Honda Insight lists both the high beam and low beam headlights as LED. That means the headlight bulbs are not shown as a standard replaceable halogen size on this page.
Yes, the front fog light position is listed as LED for the 2021 Honda Insight. If your vehicle has fog lights, confirm whether the lamp is a serviceable LED bulb or an integrated LED unit before ordering parts.
The front turn signal light bulb is listed as LED, 7440. This is the front signal position shown on the page for the 2021 Honda Insight.
The rear turn signal light bulb is listed as 7440A on this page. That rear signal size may differ from the front turn signal, so it is important to check the correct position before buying.
The back up reverse light bulb is listed as 921 for the 2021 Honda Insight. This is one of the few serviceable bulb sizes shown on the page.
The license plate light bulb is listed as LED for the 2021 Honda Insight. If your plate light is dim or out, verify whether the lamp is a replaceable LED bulb or a sealed LED assembly.
Yes. The brake light bulb and the center high mount stop light bulb are both listed as LED on this page for the 2021 Honda Insight.
The dome light bulb and the map light bulb are both listed as 194, 7441 for the 2021 Honda Insight. These are the interior bulb sizes shown on the page.
The trunk or cargo area light is listed as 168, 917 for the 2021 Honda Insight. It is a good idea to compare the installed bulb number with the chart before ordering.
Yes, both the front side marker light and rear side marker light are listed as LED. Depending on the trim and lighting package, these may be integrated LED units rather than simple bulb swaps.
You can in some positions, but fitment depends on the socket, polarity, size, and heat output. For the 2021 Honda Insight, it is best to confirm the exact bulb base and test the replacement before final installation.
Because trim and lighting equipment can vary, the installed bulb may not always match the most common listing. Checking the existing bulb helps avoid ordering the wrong size, especially for interior lights, reverse lights, and any optional lighting package.
