LED Car Bulb, Motorcycle Bulb, and Truck Bulb Cross Reference
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LED Vehicle Bulb Interchange Guide
LED Car Bulb Cross Reference Guide: How Do You Find the Correct Part Number?
This guide is comprised of three sets of data: commonly used trade numbers and manufacturer and aftermarket part numbers.
- Trade numbers, like 9006 or H11, are commonly printed on original bulbs and represent the bulb's configuration, such as connector, size, and power usage.
- Manufacturer part numbers are specific to the vehicle's maker and are useful for finding parts in OEM catalogs, providing a way to translate to standard trade sizes.
- Automotive parts manufacturers use aftermarket part numbers, which can help ensure compatibility when replacing halogen or HID bulbs with upgraded LED lights.
Our part numbers are based on original trade numbers, much like other aftermarket bulbs, with one main exception. LED headlights and foglights offer a huge advantage as one bulb can replace multiple others. For example, there are slight differences between wattage and design on H8, H9, H11, and H16 bulbs.
These differences don’t apply to our LED conversion kits, though, as the LED bulbs use less power than the lowest wattage and are still brighter than the highest wattage. This means one of our H11 bulbs, for example, can replace any standard H8, H9, H11, or H16 bulb. This section of our chart helps give you a quick, easy-to-use guide between our numbers and the trade, manufacturer, or aftermarket number you may be referencing.
How Do I Find The Correct LED Bulb?
When looking at brake, side marker, parking, turn signal, and tail lights, they will often have an easy-to-find number on the base of the bulb or even the clear housing in some cases. This number will be the first piece of information you need to make sure you are purchasing the correct replacement bulb. The second will be measuring the physical size of your bulb to compare it to potential replacement bulbs.
Additional Fitment Concerns: How to Tell If The Car Bulb Will Fit
If you haven’t already, checking with state law enforcement to determine what is legal where you live can save a lot of time. Some municipalities have strict rules on what you can and can’t modify on your vehicle, so it’s better to be on the safe side here.
When replacing your original bulb with an LED, it's important to consider both compatibility and physical fit. Many LED bulbs can replace several part numbers, such as our 3157 bulb, which fits 3057, 3457, and 4157 bases, among others. While LEDs generally fit in the same space as the original bulbs, some models may require extra clearance due to cooling features like heatsinks. This is especially important to check for foglights. To ensure proper fit, detailed dimensional drawings are provided for each bulb to help you make an accurate purchase.
As with any system, there are always exceptions. We’ve made a simple list of common problem areas we see due to confusing numbering.
- HID bulb replacements require the original HID ballast to be functional for the LED bulb to work. Using one of our LED replacements will not work with a bad ballast. While most of our bulbs are waterproof when installed in the light housing, these are not. HID replacements require a sealed, weatherproof housing to work properly.
- 9005XS and 9006XS are straight-plug variants of standard 9005 and 9006 bulbs with an angled base. The way our LED headlight bulbs are designed should allow most of them to replace both. Make sure to consult the chart for the ones that can actually replace your 9005XS and 9006XS bulbs to avoid any potential issues.
- H16 and 5202 (also called H16-EU and PS24W) bulbs are not interchangeable. H16 bulbs are primarily used by Japanese manufacturers and are visually similar to H11 bulbs. 5202 (H16-EU) bulbs are often used by manufacturers in the US and Europe and feature a radically different base with large ears for mounting and a short straight connector on the rear of the bulb.
- Standard H11 (or H11A) bulbs will not directly replace H11B bulbs, which are found primarily in Hyundai, Kia, and Ford vehicles. H11B bulbs use a special electrical connection that requires a specific plug.
- The main difference between an 880 bulb and an 881 bulb is the base. One, 880, has a straight base, and one, 881, has an angled base. All of our bulbs listed for these types will work in place of an 880, but applications using 881 should make sure to check clearance before ordering to ensure there is adequate room for installation of the new LED foglight bulb.
When replacing a vehicle bulb from a light with a red or amber lens, the bulb color needs to match the lens color for the output to be the intended color. Using a white LED behind a red lens doesn’t mean the light won’t work, but you may end up with more of a pink light than a red one. So when shopping, select a red replacement bulb if the lens is red and an amber or orange bulb for an amber or orange lens.
LED Equivalent Chart: Car Bulb Cross Reference Guide
**To easily find the number you are looking for, use CTRL+F and type the number in the search bar.
The part number of your original bulb corresponds with a specific shape, size, base type, color, voltage, and wattage. This is one place where LEDs have an advantage, as one LED bulb can replace several different original part numbers with varying wattages, etc. An example would be one of our 3157 bulbs. Since the base is the same as 3057, 3457, and 4157 bulbs (among others), it can also replace any of those.
The size of the LED bulb will vary in some cases from your original bulb. Generally they are designed to fit in any application where the original bulb did, but on rare occasions, there are instances where this is not true. We offer detailed dimensional drawings for our bulbs to ensure you can find all the information you need to make the correct purchase.
