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  • Solid State - Taillight Sequential Unit - for STANDARD / PLASMA LED BULBS - Repro ~ 1969 - 1973 Mercury Cougar / 1969 - 1973 Shelby Mustang  - 12135
  • Solid State - Taillight Sequential Unit - for STANDARD / PLASMA LED BULBS - Repro ~ 1969 - 1973 Mercury Cougar / 1969 - 1973 Shelby Mustang  - 12135
  • Solid State - Taillight Sequential Unit - for STANDARD / PLASMA LED BULBS - Repro ~ 1969 - 1973 Mercury Cougar / 1969 - 1973 Shelby Mustang  - 12135
  • Solid State - Taillight Sequential Unit - for STANDARD / PLASMA LED BULBS - Repro ~ 1969 - 1973 Mercury Cougar / 1969 - 1973 Shelby Mustang  - 12135

Item #: 12135

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Price: $176.75
    Cost: 14140
    Earns: 707
    Bonus: 0

    Availability

    Out of Stock, On Order - Often less than 2 Weeks, Unless Supplier is Backordered
    (Use 'Notify Me' button to get an alert when in stock)

    Applications

    Description

    This new version sequential box works with either standard or plasma LED bulbs

    NOTE: Although your existing emergency flasher might work just fine with the new sequential unit, it is highly recommended that you also use the same updated electronic sequential flasher in its place to guarantee proper operation.

    This is a direct fit replacement, just pop open your black plastic box located in the driver side trunk drop off and plug it in. Your January 1970 and newer Cougar will have external brake light relays taped to the outside of your box, this unit will internalize them with built in solid state units that are silent and much more reliable.

    This unit is located in the trunk behind the driver side wheel house and requires no modification to the original wiring. The two used sequential units shown represent the two versions this new unit was designed to replace. The unit without the external brake light relays was used in 1969 and early 1970. The unit with the four bulky external brake light relays was used from January 1970 to 1973. Note both versions use the same plug configuration. We highly recommend you change the flasher under the dash with our updated unit.

    Dear WCCC, I would like to thank you for having such a great product. It was incredibly simple to install. It has been years and years since the blinkers on my 1973 Cougar have worked properly. Most everyone I talked to about it, didn't want to have anything to do with it. Within the few minutes it took to install your product, I can finally drive my car again without having to worry about a thing. Thanks again!!!!

    *NOTE* Need help diagnosing a Cougar turn signal problem? Victor Yarberry is the world’s most knowledgeable expert on the subject. Vic has owned Cougars since the 1970's and is the designer of all of our solid state sequential systems. There is no question he cannot answer! Here is a link to a great source of information on the subject.



    For more info on the "Plasma" LED's, check out our comparison video:



    1969-1973 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.

    Specifications:
    Shipping Weight: 1.00 LBS
    (weight shown may be the dimensional weight)

    This item must ship via

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    4.90 out of 5 stars
    Based upon 28 Review(s).
    5 Stars
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    Brazil

    4.75 out of 5
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    Pros:
    • Good quality
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    • none
    Very good quality.
    Easy to install and is very good to see the sequencial turning signal working again!

    AUSTRALIA,South Australia
    2020

    Great item!

    5.00 out of 5
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    Great item, Easy install. Needed to fit LED lights and well worth the money! Thanks WCCC!

    AUSTRALIA,South Australia
    2020

    Great item!

    5.00 out of 5
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    Great item, Easy install. Needed to fit LED lights and well worth the money! Thanks WCCC!

    South Carolina
    2013

    5.00 out of 5
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    Love this conversion! Now i feel confident that my signals will be seen as i was always having intermittent failures before

    MA
    2018

    What a difference!

    5.00 out of 5
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    I put this unit in my 1970 Shelby along with the flasher and plasma bulbs and all I can say is...WOW! I don't have to worry about other drivers not seeing my directional or brake lights. Very easy to install and I would highly recommend it.

    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:
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    - Jim Davis
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    - 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)
    I liked that I could see a picture of parts and that you could type in what you were looking for. What was handy for me was the ability to chat with Darrell. He was a big help. Also high on the you gotta keep on staff was Joshua, I had some issues...
    - Rod (Canada)
    I was having difficulty placing my order on the website and spent a couple of hours trying with no luck (ending in immense frustration). I decided to finally just call and order my parts over the phone (4 small items). Was surprised that Don Rush...
    - Tim (1969 Cougar XR7)
    Brake booster failed on our 1970 Mach1. We had ordered a new 2022 Mach1 to match the old one and the dealer wanted to use both cars in a promotional ad. When we received the replacement booster it failed within a few minutes of installation. I...
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