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  • Side Marker Light - Plasma LED Adapter Kit - New ~ 1971 Mercury Cougar - 12840
  • Side Marker Light - Plasma LED Adapter Kit - New ~ 1971 Mercury Cougar - 12840
  • Side Marker Light - Plasma LED Adapter Kit - New ~ 1971 Mercury Cougar - 12840
  • Side Marker Light - Plasma LED Adapter Kit - New ~ 1971 Mercury Cougar - 12840
  • Side Marker Light - Plasma LED Adapter Kit - New ~ 1971 Mercury Cougar - 12840
  • Side Marker Light - Plasma LED Adapter Kit - New ~ 1971 Mercury Cougar - 12840

Item #: 12840

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Price: $90.00
    Cost: 7200
    Earns: 360
    Bonus: 0

    Availability

    In-Stock Item - Ships: Next Business Day

    Applications

    Description

    The D1WY-15A434-LSM LED Side Marker Light Adapter kit is required when the C9WY-13A366-AL or the TS-400 Sequential controller is installed with LED front turn signal and rear LED side marker bulbs on 1971 Cougars and other Ford vehicles with two rear side marker lights. An adapter is required for each rear side marker light (2 total). This adapter solves the problem where the side marker voltage feeds back through the front turn signal bulb when the running lights or headlights are turned on. When this happens all the rear bulbs may flash together or it may trigger the opposite side to turn on. It solves this problem by providing a direct ground path for each side marker light. Two red LED bulbs are included. These adapters maintain the original Ford factory function of the side maker lights:

    1. light up solid when the headlights or parking lights are on;
    2. flash in unison with the front turn signal when the headlights or parking lights are off;
    3. flash alternating with the front turn signal when the headlights or parking lights on.

    WARRANTY: The adapter kit is covered by a limited warranty for two years after purchase. Should the unit fail during this warranty period, it will be repaired or replaced upon prepaid return to your dealer. This limited warranty does not include repair of damage to the unit resulting from accident, disaster, misuse, abuse, unauthorized modifications or any use beyond normal operating conditions. This warranty excludes any coverage for incidental or consequential damages. 

    1971 Cougar owners: This is one of the components that you'll need in order to use our Plasma LED taillight bulbs in your car with the sequential turn signal system. 

    1972-1973 Cougar owners: This component is not needed, as the rear markers are not part of the sequential system on 72 & 73 Cougar.
    Specifications:
    Shipping Weight: 0.50 LBS
    (weight shown may be the dimensional weight)

    This item must ship via

    INSTALLATION:

    1. Turn off the engine and ignition for safety.
    2. Twist to unplug the existing rear side marker light socket and remove the bulb.
    3. Insert the side marker light adapter plug into the factory socket. It doesn't matter which way the adapter is plugged in. Use electrical tape around the plug and socket to secure the adapter to the original socket.
    4. Attach the adapter ground to one of the rear quarter extension housing studs using the supplied KEPS nut. Using either an 1” insulated cushion clamp or wire ties, mount the adapter.
    5. Insert the LED side marker bulb into the new socket. The bulbs are polarized – match the black mark to the black wire. Make sure the LED bulb is inserted securely. Test both the running lights and turn signal to make sure the connections are good. The bulb may need to be adjusted for the wire leads to make a good connection.
    6. Insert and twist the socket into side marker housing.
    7. Repeat for each of the adapters.
    8. Test for correct functionality prior to driving the vehicle.
    review-star review-star review-star review-star review-star

    4.75 out of 5 stars
    Based upon 2 Review(s).
    5 Stars
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    4 Stars
    100%
    3 Stars
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    2 Stars
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    1 Stars
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    Massachusetts
    2013

    Great fix

    4.75 out of 5
    Material:
    review-star review-star review-star review-star review-star
    Fit:
    review-star review-star review-star review-star review-star
    Craftsmanship:
    review-star review-star review-star review-star review-star
    Correctness:
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    Pros:
    • quick install and good quality
    Cons:
    Add the LED taillight system was a great improvement for safety and looks. The Side marker adapter kit let me finish the job correctly. Easy install and bright side marker lights now.

    2013

    Side marker lights restored.

    4.75 out of 5
    Material:
    review-star review-star review-star review-star review-star
    Fit:
    review-star review-star review-star review-star review-star
    Craftsmanship:
    review-star review-star review-star review-star review-star
    Correctness:
    review-star review-star review-star review-star review-star
    Pros:
    • quality
    • easy fit
    Cons:
    great product as always. Directions clear, great fit, Marker lights bright, correct color and function correctly

    Number of questions: 0
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    Why am I being warned about potential exposure to chemicals in motor vehicle parts?


    • Some chemicals in motor vehicle parts are on the Proposition 65 list because they can cause cancer and/or birth defects or other reproductive harm.
    • When purchasing USED or NOS items, we do not know if listed chemicals are present in these products.
    • This product is known to contain the following listed chemicals:
    <p>I have enjoyed dealing with Don and his group for years and now that I own more cougars the need is greater than ever. I look forward to their videos and easier ways to assemble they have been most helpful. I can navigate there catalog...
    - Dean
    I bought my 69 Cougar in Jul of '09 as a retirement from the Army gift to myself. From day 1 it had intermittent heating problems that I tried to fix. I changed the radiator, thermostat, water pump, and added 2 12 in 1400 cfm electric cooling...
    - MartinD
    My 1971 Cougar XR7 was retrofitted with a Ford “400”, Edelbrock intake and 4 barrel carb, TCI Street Fighter trans, B & M Hammer shifter, and dual turbo exhaust. While this sounds interesting, the Cougar itself was seriously neglected and...
    - Frank
    Just got my quarter window glass installed in my restored quarter window frames; could not be happier! ...
    - Mike Dunlap
    WCCC hooked me up with an original glove box cable and the correct screws WITH shoulders for my glove box. Their listing for these screws explains that the original screws have a shoulder for the cable and most people put in the wrong screws--which...
    - Jim Davis
    I have been a cougar owner for just shy of 30 years, I have been dealing with part problems for a very long time. The people at WCCC have always be honest, and overly helpfull. I now have a 1970 XR-7 mostly rebuilt, and my son has a 1968 base...
    - Voodochild5
    What did you LIKE about your experience? * : I am fairly new to WCCC, four or five orders (at the time of writing), but I am blessed to have found WCCC for sure. I had a small problem, couldn't find anything to work for the condensation drain on my...
    - Kenneth Milden
    I have been working with Don Rush and his team for close to 20 years. In all of these years with many sales transactions I can say they have been 2nd to none. They have always been not only helpful but extremely knowledgeable. I certainly continue...
    - Denver
    I have made many purchases online with WCCC but chose this time to make a 1400 mile round trip and visited them in person. I brought a van load of parts with me that needed a home. Don helped unload them then quickly assessed the value which I...
    - pandamonium2112
    I just wanted to let you know that my order which was shipped (via UPS Mail Innovations) December 05 was at my front door, having gone thru Canada customs, on December 16. It arrived in excellent shape. Kudos to you guys, UPS, and the USPS for...
    - Rod (Saskatchewan, Canada)
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