2012 Harley Davidson LED headlight upgrade

How to install High/Low LED headlights for your 2012 Harley Davidson

2012 Harley Davidson LED Headlights High and Low Beam.

You may find your halogen bulbs are quite dim, which may make it hard to see in front, especially in bad weather or severe driving conditions. Upgrading your old halogen bulbs of your 2015 Harley Davidson to new aftermarket LED bulbs can add a great new look to your vehicle as well as  enhance  visibility at night for safer driving experience.

If choose to upgrade your old halogen bulbs to new LED bulbs, it is best to confirm you have the correct LED replacement bulb by referencing the original stock halogen bulb part number located in the vehicles direct owner’s manual or directly on the original bulb.  

Below we will show you how to install your new ALLA Lighting LED bulbs to your headlight.

Bulb Size for a 2012 Harley Davidson: H4 Possible variations. Please reference the original bulb part number before purchase and or installation. 

The following information is a step by step instructions on how to install your new H4 TS-CR LED headlight bulb

Tools Required: The following will be the recommended tools required for your installation. 

Philips head screwdriver

Lets Get Started!!!

Step: 1) Loosen the screw on the chrome trim to expose the bulb retention ring screws.


Step: 2) remove the 3 retention screws on the retention ring.

Step: 3) unplug the bulb by pulling the connector straight up

Tip: you may have to wiggle side to side to remove easier

Step: 4) Remove the rubber ring

Step: 5) Unhook the spring to release the bulb from the housing

Step: 6) To secure the new LED bulb in the housing, remove the chuck from the bulb and install the chuck into the housing

Step: 7) Insert the rubber ring around the LED bulb prior to inserting the LED bulb into the chuck

Step 8) Insert the LED bulb with the LED chips facing left to right with the opening of the cup covering the LED chip facing up.

Step 9) Make sure the rubber ring is in correct by matching the arrow at the top

Step 10) Plug the bulb into the socket and check to see if the bulb powers correctly.

Step 11) Align the notch on the headlight housing to the bulb and reinstall the headlight retention ring.

Step 12) Reinstall trim

Tip: you can install the trim upside down to expose the screw and rotate it when slightly screwed in and tighten at the correct position

Check out our Step by Step installation video! 

Congratulations!! Your installation is now complete for your 2012 Harley Davidson. If you experienced any issues in which unable to complete installation please contact us for assistance. If the  LED bulbs are experiencing hyper-flashing, flickering, an error code issues, then load resistors for this application will be required to be installed. These issues occur due to the LEDs low current nature which draws much less current than original stock halogen bulbs.

Please feel free to contact us at service@allalighting.com for assistance. Our team of highly trained representatives will be available to assist and provide best solution. May also visit us at www.allalighting.com 

Looking for more LED upgrades for your vehicle. Check out the below bulb guide!  For your reference only. All information below is not 100% guaranteed accurate. Please check the vehicle owner’s manual before purchasing. 

Exterior Lights:

  • Headlight Low Beam:
  • Headlight High Beam:
  • Front Fog Light Bulb:
  • Front Turn Signal Light:
  • Front Side Marker Light:
  • Rear Tail Light:
  • Rear Turn Signal Light:
  • Rear Brake Light:
  • Rear Reverse Light:
  • Center High Mount Stop Light:
  • License Plate Light:

Interior Lights:

  • Dome Light:
  • Map Light:
  • Trunk/Cargo Light:
  • Interior Door Light:
  • Glove Box Light

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