How Do You Install LED Headlights On A Harley-Davidson


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How Do You Install Led Headlights On A Harley Davidson

Installing LED headlights on your Harley-Davidson is a great way to improve visibility and stand out on the road. Whether you are an experienced mechanic or a beginner, it is possible to install LED headlights on your Harley-Davidson. This article will provide a step-by-step guide to help you complete this task safely and easily. If you’re looking for an upgrade that will add some style and improved performance to your Harley-Davidson, read on to learn how to install LED headlights!

Symptoms that your Harley-Davidson motorcycle needs new headlights

Headlights are often the most important safety features when driving a Harley-Davidson bike. They offer essential illumination, especially during nighttime rides and in adverse weather conditions. Over time, headlights can experience wear and tear, resulting in reduced performance and compromised visibility. Recognizing the symptoms indicating the need for new headlights will be important for maintaining safety and enhancing the overall riding experience. Here are some of the common symptoms that signal the need to install new headlights on your Harley-Davidson motorcycle.

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#1. Dim or flickering headlights

Dim or flickering headlights are among the most noticeable signs that it is time for a replacement. As headlight bulbs age, they tend to lose brightness, resulting in reduced visibility during nighttime rides.

Moreover, flickering headlights can indicate loose or damaged wiring, which can result in further issues if not addressed promptly. If you notice that your bike’s headlights appear dim or flicker intermittently, consider installing new headlights to restore optimal brightness and ensure a safer riding experience.

#2. Yellowing or cloudy lenses

Headlight lenses are susceptible to environmental factors like UV exposure, road debris, and weathering. Over time, these factors can cause the lenses to become cloudy or yellow, reducing the amount of light transmitted onto the road.

Yellowing or cloudy lenses can greatly diminish headlight performance and compromise visibility, especially in low-light conditions. If you notice that your Harley-Davidson bike’s headlight lenses have become discolored, installing new headlights with clear and clean lenses will restore their effectiveness.

#3. Uneven or misaligned beam

Properly aligned headlights are important for safe night riding and minimizing glare to oncoming drivers. If you’re noticing that your headlight beam is uneven or misaligned, it can indicate a problem with the headlight housing or mounting.

Attempting to adjust the beam might not always resolve the issue, especially if the headlight is damaged or worn out. Installing new headlights will help ensure that the beam is properly aligned, offering maximum visibility and safety during your rides.

How Do You Install Led Headlights On A Harley Davidson

#4. Reduced light output

As headlight bulbs age, their light output gradually increases, resulting in reduced illumination on the road ahead. Reduced light output can make it quite challenging to see potential hazards or obstacles in front of you, increasing the risk of accidents, especially in poorly lit areas or adverse weather conditions.

If you find that your Harley-Davidson bike’s headlights no longer provide the brightness they once did, it is a clear indication that it is time to install new headlights for optimal performance.

#5. Excess vibrations or rattling

Harley-Davidson motorcycles are known for their powerful engines, which can generate vibrations using rides. Over time, these vibrations can take a toll on the headlight housing and mounting, resulting in excessive vibrations or rattling.

Loose or damaged headlight components can affect the headlight’s stability and performance, posing a safety risk. If you notice unusual vibrations or rattling coming from the headlight area, you should consider installing new headlights with sturdy and secure mounting systems to eliminate the issue.

Preparation before installing LED headlights

Upgrading your Harley-Davidson motorcycle with LED headlights can greatly enhance visibility and aesthetics, offering a safer and more enjoyable riding experience. However, as you dive into the installation process, proper preparation will be important to ensure a smooth and successful upgrade. Here are some of the preparatory steps that you need to carry out before you can start installing new LED headlights.

Step 1: Check compatibility with your bike

The first preparatory step you should carry out for LED headlight installation will be to ensure compatibility with your specific Harley-Davidson motorcycle model. LED headlights come in different sizes and designs, and not all of them are suitable for every motorcycle.

You should check the manufacturer’s specifications and recommendations to find LED headlights that are explicitly designed for your motorcycle’s year, make, and model. Moreover, consult your Harley-Davidson bike’s user manual or reach out to a Harley-Davidson dealership or a trusted mechanic for expert advice on compatible LED headlight options.

Step 2: Gather the necessary tools and supplies

Before you start the installation, you should gather all the necessary tools and supplies. The exact tools needed might vary based on your motorcycle’s model and the specific LED headlight kit you choose. However, some of the common tools and supplies that you might require including –

  • Socket wrench set
  • Flathead and Phillips screwdrivers
  • Wire cutters and strippers
  • Allen wrenches
  • Electrical tape
  • Zip ties
  • Safety glasses and gloves
  • Owner’s manual or installation guide that comes with the LED headlight kit
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Having the necessary tools and supplies on hand will streamline the installation process while minimizing the risk of interruptions or delays.

Step 3: Prepare the bike

Before you start the installation, you must prepare your Harley-Davidson motorcycle for the upgrade. You need to park your motorcycle on a flat, level surface to make sure you feel comfortable working on your motorcycle.

Moreover, you need to let your bike cool down so that you can’t get burnt when you touch the bike. Make sure you do not start working on your bike right after returning from a ride.

Step 4: Read the installation manual

LED headlight kits typically come with detailed installation guides or user manuals. Before you proceed, carefully read the instructions mentioned with your chosen LED headlight kit. Following the manufacturer’s guidelines will ensure a correct and safe installation process.  

How to remove old LED headlights on your Harley-Davidson bike?

Upgrading the headlights on your Harley-Davidson motorcycle can greatly improve visibility and enhance the overall riding experience. If you’ve got an old LED headlight that needs replacement or you’re upgrading to a better set, you will need to know how to remove the old LED headlights, which is a straightforward process. Here are the steps you need to follow to safely remove old LED headlights from your Harley-Davidson motorcycles.

Step 1: Disconnect the battery

For safety reasons, it will be important to disconnect the motorcycle’s battery before starting any electrical work. Locate the battery on your Harley-Davidson motorcycle and disconnect the negative terminal. This precaution will prevent any accidental electrical shocks and ensure a safer working environment during the removal process.

Step 2: Remove the headlight housing

The LED headlight is housed within the headlight assembly on your Harley-Davidson motorcycle. The exact method of removing the headlight housing might vary based on your motorcycle’s model and the design of the LED headlight assembly.

On most Harley-Davidson motorcycles, you’ll be able to access the headlight housing by removing the headlight trim ring or bezel. This might involve unscrewing or unclipping the trim ring, depending on the design.

Once the trim has been removed, you will likely find mounting hardware securing the headlight housing to the motorcycle’s frame. Use the appropriate tools to loosen and remove these screws or bolts. Keep track of the hardware as you’ll require it when installing the new headlights.

Then, you should disconnect the wiring. With the mounting hardware removed, you need to locate the wiring harness that connects the LED headlight to the motorcycle’s electrical system. Carefully disconnect the wiring harness ad any additional clips or connectors.

How Do You Install Led Headlights On A Harley Davidson

Step 3: Remove the old LED headlight

Once you have disconnected the wiring harness and any other attachments, the old LED headlight should be free from the motorcycle’s frame. Gently remove the headlight from the housing, taking care that you don’t damage any wires or components during the process.

Step 4: Inspect and clean the housing

With the old LED headlight removed, you need to take a moment and inspect the headlight wirings for any signs of damage or wear. Clean the housing and the surrounding area for ensuring a clean and smooth surface for the installation of the new headlights. If you notice any issues, address them before proceeding with the LED headlight installation.

LED headlights typically require an additional component called a driver or ballast. Make sure that you have enough space near the headlight housing to accommodate this component securely. Some LED headlight kits come with compact drivers that can be mounted in tight spaces.

How do you install LED headlights on a Harley-Davidson bike?

Upgrading your Harley-Davidson motorcycle with new LED headlights can transform your riding experience, offering enhanced visibility and a sleek, modern look. Once you’ve successfully removed the headlights, you’ll be ready for installing the new ones. If you are wondering how do you install LED headlights on a Harley-Davidson bike, then you’ll be glad to know it is quite easy. Here are the steps you need to follow for installing a new LED headlight on your Harley-Davidson bike.

Step 1: Connect the power

Before you mount the new LED headlight, connect the wiring harness to the motorcycle’s electrical system. Identify the wiring harness that connects to the back of the new LED headlight. The harness will have a specific connector that fits into the corresponding socket on your Harley-Davidson motorcycle.

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Align the connectors on the wiring harness with the corresponding socket on the motorcycle’s electrical system. Gently insert the connectors until they fit together securely. After connecting the wiring harness, use zip ties or electrical tape to secure the wires to the motorcycle’s frame or existing wiring harnesses. This prevents any loose wires from interfering with other components and maintains a neat appearance.

Step 2: Mount the new LED headlight

Mounting the new LED headlight securely is important to ensure proper alignment and stability during rides. Carefully position the new headlight within the headlight housing, ensuring that it is properly aligned with the mounting holes in the housing.

Insert the screws or bolts through the mounting holes on the headlight and into the corresponding holes on the headlight housing. Make use of the appropriate tools for tightening the screws or bolts securely. Be cautious that you do not end up overtightening as it might damage the headlight or housing.

If your Harley-Davidson motorcycle has a headlight trim ring or bezel, reinstall it around the new LED headlight. Secure the trim ring using the original screws or clips.

Step 3: Adjust the headlight beam

Properly adjusting the headlight beam is important to ensure maximum visibility and avoid blinding oncoming drivers. Position your Harley-Davidson motorcycle on a level surface, facing a flat wall or garage door about 25 feet away.

Then, you should turn on the headlight for projecting the beam onto the wall. Use the adjusting screws or knobs on the headlight housing to aim the beam. The ideal position will be within the center of the beam slightly below the center of the headlight lens and slightly towards the right of the centerline of the bike. This ensures that the beam illuminates the road ahead without blinding oncoming traffic.

Once you have finished with the initial adjustment, take a short ride or ask someone to observe the headlight beam while you’re sitting on the bike. Fine-tune the beam alignment as required for optimal visibility and safety.

Common issues with LED headlights and how to troubleshoot them

LED headlights offer several advantages over traditional lighting solutions, such as energy efficiency, improved brightness, and longer lifespan. However, like any electrical component, LED headlights on a Harley-Davidson motorcycle might encounter certain issues over time. Understanding common issues and knowing how you can troubleshoot them can help you maintain optimal performance and visibility on your rides. Here are some of the common issues with LED headlights and how to troubleshoot them effectively.

Flickering headlights

Flickering LED headlights can be quite a frustrating issue that affects visibility and can be caused by numerous factors. Some of the steps you can take to troubleshoot this issue include checking the wiring, checking the battery, installing a resistor, and more.

You need to inspect the wiring connections between the LED headlight and the motorcycle’s electrical system. Loose or damaged connections can result in flickering. Make sure that all connectors are securely attached.

Voltage fluctuations in your Harley-Davidson motorcycle’s battery can result in flickering LED headlights. Test the battery’s voltage using a multimeter and if it isn’t within the recommended range, consider replacing or recharging the battery.

In some cases, adding a resistor to the LED headlight circuit can help stabilize voltage and reduce flickering. Consult the LED headlight manufacturer or a professional mechanic for guidance on the appropriate resistor for your specific headlight model.

Dim LED headlights

Dim LED headlights can greatly compromise visibility, defeating the purpose of upgrading to LEDs. For troubleshooting the issue, you need to check the battery, inspect the ground connection, and verify the wiring.

A weak or undercharged battery might not provide enough power to the LED headlights, causing them to appear dim. Make sure that the battery is fully charged or consider replacing it if needed. Poor ground connections can also affect the performance of LED headlights. Make sure that the headlight’s ground wire is securely connected to a clean, unpainted metal surface on the motorcycle’s frame.

Double-check the wiring connections between the LED headlight and the motorcycle’s electrical system. Loose or damaged wires can reduce the power supply to the headlights.

Beam alignment issues

Proper beam alignment is important for optimal visibility and safety. If the LED headlight beam is misaligned, you might experience reduced visibility or risk blinding oncoming traffic. To do that, you need to park your bike on a level surface. Position your motorcycle on a level surface facing a flat wall or garage door around 25 feet away.

Then, use the adjusting screws or knobs on the headlight housing to aim the beam. The ideal position is within the center of the beam slightly below the center of the headlight lens and slightly to the right of the centreline of the bike.

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Take a short ride or ask a family member or friend to observe the headlight beam when you’re sitting on the bike. Fine-tune the beam alignment as needed for optimal visibility and safety.

How Do You Install Led Headlights On A Harley Davidson


LED headlights generate less heat than traditional bulbs but they can still overheat if not managed properly. Overheating can result in reduced lifespan and performance. For troubleshooting this issue, you need to check the housing, verify the power source, and upgrade the heat sink.

Make sure that the headlight housing is properly ventilated and not obstructed. Adequate airflow around the headlight helps in dissipating heat efficiently. Make sure that the LED headlight is receiving the correct voltage supply. Too much voltage can result in overheating. If required, you should use a voltage regulator for maintaining a stable power supply. Some LED headlight models come with integrated heat sinks. Upgrading to a headlight with a batter heat sink design can improve heat dissipation and prevent overheating.

Factors to consider when choosing the new headlight for your Harley-Davidson

Harley-Davidson motorcycles exude a sense of adventure and freedom on the open road. An important component that contributes to the overall riding experience and safety is the headlights. Whether you prefer traditional halogen headlights or go for modern LED headlights, the choice can greatly impact visibility, performance, and overall aesthetics. Here are the factors you need to consider when you’re in the market for new headlights for your Harley-Davidson bikes.

Aesthetics and style

Headlights play a key role in the overall aesthetics and style of Harley-Davidson motorcycles. LED headlights offer various customization options, such as different color temperatures and lens designs. This allows riders to personalize their motorcycles to reflect their unique tastes. If you value style and visual appeal, LED headlights might be the perfect option to complement your bike’s overall look.

Lighting performance and visibility

The primary function of headlights is to offer adequate illumination and visibility, especially during nighttime rides or in adverse weather conditions. You should consider the lighting performance of the type of headlight you are contemplating going for. LED headlights are known for their amazing brightness and clarity, offering a focused and intense beam that surpasses traditional halogen bulbs in visibility. Meanwhile, halogen headlights might not offer a similar level of brightness but they still provide adequate lighting.

Energy efficiency and fuel economy

Harley-Davidson riders who frequently embark on long journeys or use various electrical accessories might value energy efficiency and fuel economy. LED headlights are renowned for their low power consumption, putting less strain on the bike’s electrical system and increasing overall fuel efficiency.

Conversely, halogen headlights draw more power and might have a minor impact on fuel consumption, especially if used in combination with other electrical accessories.

Cost and budget considerations

Budget is a vital factor when selecting headlights for your Harley-Davidson motorcycle. LED headlights typically have a higher upfront cost compared to halogen bulbs. While LED technology offers long-term savings because of its extended lifespan and energy efficiency, riders on a limited budget might find halogen headlights more appealing as a cost-effective option. Weighing the initial investment against long-term benefits will be important to make a viable decision.

Compatibility and installation

Harley-Davidson bikes have specific headlight housing designs and electrical systems. When choosing headlights, make sure that there is compatibility with your motorcycle’s model and year. LED headlights, especially the aftermarket units, might require additional modifications for proper installation and integration with the electrical system. You should opt for headlights designed explicitly for your motorcycle’s model to avoid compatibility issues and ensure a seamless fit.


What tools are required to install LED headlights on a Harley-Davidson?

Installing LED headlights on a Harley-Davidson usually requires a Phillips screwdriver, pliers, wire stripper, and a 7/16 wrench. You may also need a few additional tools depending on the model of the motorcycle. It is important to make sure you have the right tools before beginning the installation process.

What are the steps for installing LED headlights on a Harley-Davidson?

The installation of LED headlights on a Harley-Davidson typically involves disconnecting the battery, removing the fairings, detaching the existing headlights, connecting the wiring harness, and bolting the new headlights in place. It is important to consult the manufacturer’s instructions to ensure you are following the correct steps for your specific model.

What safety precautions should be taken when installing LED headlights on a Harley-Davidson?

When installing LED headlights on a Harley-Davidson, it is important to take safety precautions to protect yourself and the motorcycle. This includes disconnecting the battery, using the right tools, and wearing protective gear. It is also important to follow the manufacturer’s instructions carefully to ensure the installation is done correctly.

>>> Read more about LED Headlights for Harley-Davidson <<<

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White Star Rides is your go-to Harley-Davidson expert. We live and breathe these bikes. Our team has years of experience in fixing, riding, and loving Harleys. We know every part of these bikes and love sharing what we know with you. Whether it's about fixing a problem or just enjoying the ride, we're here to help. Trust us to make your Harley journey better and easier.

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