A2228700789 and 63117354974 Headlight LED Driver Module Cross Reference Guide

When replacing a headlight LED driver module, the part number is one of the most important details to check. However, the same type of automotive lighting module may sometimes be listed under different reference numbers depending on the vehicle application, supplier system, or catalog source.

Two commonly searched reference numbers are A2228700789 and 63117354974. Both numbers may be associated with headlight LED driver module applications, but before purchasing a replacement module, it is important to compare more than just the number on the listing. The connector layout, housing shape, mounting points, and original module label should all be checked carefully.

This guide explains how to understand these cross-reference numbers and what to confirm before buying a replacement headlight LED driver module.

What Is a Headlight LED Driver Module?

A headlight LED driver module is an electronic control unit used in modern vehicle headlight systems. It helps regulate power delivery to the LED lighting components inside the headlight assembly.

Depending on the vehicle and headlight design, this module may be related to functions such as:

  • Low beam operation

  • Daytime running light operation

  • LED headlight power control

  • Headlight warning errors

  • Lighting stability

  • Communication with the headlight system

The exact function can vary by vehicle model, headlight type, and original equipment design. Because of this, confirming compatibility before purchase is very important.

A2228700789 and 63117354974: Why Are There Different Numbers?

A2228700789 is commonly searched as a Mercedes-Benz reference number, especially for headlight LED control module applications.

63117354974 is commonly searched as a BMW reference number for a similar type of headlight LED driver module.

In some cases, a physical module may be associated with more than one reference number across different vehicle applications or catalog systems. This is why cross-reference numbers are useful for buyers who are trying to identify a compatible replacement.

However, a cross-reference number should not be used alone as the only confirmation. Even if two numbers appear related, the original module must still be checked by part number, connector, housing design, and mounting position.

OE / Cross-Reference Part Numbers

The following numbers may be used as reference or cross-reference numbers for this type of headlight LED driver module:

  • A2228700789

  • 63117354974

Please check the original module label before purchase. Matching one reference number is helpful, but it is not always enough to confirm full compatibility.

Vehicle Application Example

This type of module may be used for Mercedes-Benz S-Class W222 headlight applications, depending on the original headlight system and module version.

Example application:

  • For Mercedes-Benz S-Class W222

  • Model years: 2013–2020

  • Product type: Headlight LED Driver Module / Headlight LED Control Module

Before ordering, please compare your original module with the replacement product carefully.

How to Confirm Compatibility Before Purchase

1. Check the Original Part Number

The first step is to remove or inspect the original module and check the label. The number printed on the original module is usually the most reliable reference.

Look for numbers such as A2228700789, 63117354974, or other related reference numbers.

If the number on your original module is different, do not rely only on the vehicle model. Different headlight systems can use different modules even within the same model range.

2. Compare the Connector Layout

The connector is one of the most important compatibility points.

Before buying, compare:

  • Connector shape

  • Number of pins

  • Pin layout

  • Plug direction

  • Locking structure

A module with a similar part number but a different connector may not fit your headlight assembly.

3. Compare the Housing Shape

The outer housing should match the original module. Check the size, shape, edge design, screw positions, and sealing surface.

Even small differences in the housing may prevent correct installation.

4. Check the Mounting Points

The mounting holes must line up with the original headlight assembly. If the mounting points are different, the module may not sit correctly or seal properly.

Before purchase, compare the mounting hole positions with your original module.

5. Confirm Left or Right Side Requirements

Some headlight modules may be side-specific, while others may be used on either side depending on the vehicle and configuration.

Check whether your original module comes from the left headlight or right headlight, and compare it with the product description before ordering.

6. Confirm the Headlight Type

Different vehicles may use different headlight systems, such as LED, HID, Xenon, DRL, or adaptive headlight systems.

This product type is intended for headlight LED driver module applications. If your vehicle uses a different headlight system, please check the original module carefully before purchase.

Common Symptoms Related to a Faulty Headlight LED Driver Module

A faulty or damaged headlight LED driver module may be related to symptoms such as:

  • One side headlight not working

  • Daytime running light not working

  • Headlight flickering

  • Headlight malfunction warning

  • Low beam not working

  • Intermittent lighting operation

  • Burnt, corroded, or water-damaged original module

These symptoms can also be caused by other parts, such as the bulb, LED light source, wiring, connector, fuse, or the headlight assembly itself. Replacing the module may help restore lighting operation if the original module is confirmed to be faulty.

Does This Module Need Programming?

Programming requirements depend on the vehicle, headlight system, and the specific module being replaced.

Some replacement modules may work after installation, while some vehicles may require coding, programming, or fault clearing with diagnostic equipment. We recommend professional installation and proper vehicle diagnosis before replacement.

If you are not sure, check with your installer before ordering.

What Photos Should You Check Before Buying?

To reduce the risk of buying the wrong module, compare the following details before purchase:

  • Original module label

  • Front housing

  • Back housing

  • Connector port

  • Mounting holes

  • Headlight position

  • Vehicle model and year

If you are not sure about compatibility, please send the original part number and clear photos of your original module before purchase.

Buying Tip: Do Not Check the Part Number Only

The part number is important, but it should not be the only detail you check.

For headlight LED driver modules, the safest confirmation method is:

Part number + connector + housing + mounting points + vehicle application

If all of these details match, the chance of correct fitment is much higher.

Recommended Product

If you are looking for a replacement headlight LED driver module with reference numbers A2228700789 or 63117354974, please check our product page below:

[Insert product link here]

Before ordering, please compare your original module with the product photos and confirm the part number, connector layout, housing shape, and mounting points.

FAQ

Is A2228700789 the same as 63117354974?

They may be used as cross-reference numbers for a similar type of headlight LED driver module in different vehicle applications or catalog systems. However, buyers should still confirm the original module label, connector, housing, and mounting points before purchase.

Can I buy this module only by checking my vehicle model?

No. Vehicle model and year are helpful, but they are not enough. Different headlight systems may use different modules. Always check the original part number and compare the physical module.

Can this module fix a headlight malfunction warning?

It may help if the warning is caused by a faulty headlight LED driver module. However, the problem may also come from the wiring, bulb, LED light source, connector, fuse, or headlight assembly. Diagnosis is recommended before replacement.

Does this module fit both left and right headlights?

This depends on the vehicle and headlight configuration. Please compare your original module and check the product description before purchase.

What should I send if I am not sure about compatibility?

Please send the original part number, vehicle model and year, and clear photos of the original module, including the label, connector, housing, and mounting holes.

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