Contact Us / Visit Us (click here)
CANADIAN CUSTOMER: Due to the Canada Postal Service strike, we recommend choosing DHL Express.
Note: UPS Mail Innovations is NORMALLY delivered by the post office, however UPS has transitioned all Canadian-bound shipments to a non-postal delivery service.
International Customers Click Here [Updated 6/2024]
 
'https://cougarpartscatalog.mo.cloudinary.net/dc/25782/1704388988_p.jpg','https://cougarpartscatalog.mo.cloudinary.net/dc/25782/1704388983_k.jpg','https://cougarpartscatalog.mo.cloudinary.net/dc/25782/1704388987_k.jpg','https://cougarpartscatalog.mo.cloudinary.net/dc/25782/1704388982_t.jpg','https://cougarpartscatalog.mo.cloudinary.net/dc/25782/1704388981_m.jpg','https://cougarpartscatalog.mo.cloudinary.net/dc/25782/1704388986_o.jpg','https://cougarpartscatalog.mo.cloudinary.net/dc/25782/1704388984_j.jpg','https://cougarpartscatalog.mo.cloudinary.net/dc/25782/1704388980_o.jpg','https://cougarpartscatalog.mo.cloudinary.net/dc/25782/1704388985_t.jpg'
  • Sequential Turn Signal Unit - NOS ~ 1970 - 1973 Mercury Cougar - 25782
  • Sequential Turn Signal Unit - NOS ~ 1970 - 1973 Mercury Cougar - 25782
  • Sequential Turn Signal Unit - NOS ~ 1970 - 1973 Mercury Cougar - 25782
  • Sequential Turn Signal Unit - NOS ~ 1970 - 1973 Mercury Cougar - 25782
  • Sequential Turn Signal Unit - NOS ~ 1970 - 1973 Mercury Cougar - 25782
  • Sequential Turn Signal Unit - NOS ~ 1970 - 1973 Mercury Cougar - 25782
  • Sequential Turn Signal Unit - NOS ~ 1970 - 1973 Mercury Cougar - 25782
  • Sequential Turn Signal Unit - NOS ~ 1970 - 1973 Mercury Cougar - 25782
  • Sequential Turn Signal Unit - NOS ~ 1970 - 1973 Mercury Cougar - 25782

Item #: 25782

Login to add this item
to a saved wishlist
Price: $252.86
    Cost: 20229
    Earns: 1012
    Bonus: 0

    Availability

    Rare / NOS Part - Ships: 1-2 Business Days (Requires Stock Verification)

    Applications

    Description

    NOS sequential unit for the taillights of the Mercury Cougar

    Ford part # D1WY-13A366-A.

    1971 Cougars built from 2/1/71 to 5/15/71 used a unique sequential system in the trunk, D1WY-13A366-C. It uses two connectors, grey and light blue, that are no longer serviced. When the sequential system must be serviced, it can be replaced by an NOS unit, or a replacement unit, such as the C9WY-13A366-AL sequencer shown below. Since these unique connectors are no longer available, the connector plugs on the tail light harness must be replaced with the more typical red and black plugs. The C9WY-13H366-AR harness connector repair kit provides these plugs along with about 12” of wire for splicing. Installation requires cutting off the old grey connectors and splicing on the new red/black connectors while matching up the wire color codes. Slide heat shrink tubing over each wire and solder (no butt splices) each connection. Wrap the bundle with electrical tape to protect the connections. Remove the old sequential system board from the black case, install a new C9WY-13A366-AL sequential system board and plug into the harness. Replace the turn signal flasher can with a D0WY-13A366-AR when using 1157 bulbs or a D0WY-13A366-L flasher when using LED bulbs. Remember to test both the turn signals and brake lights prior to driving the car.



    *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.

    Specifications:
    Shipping Weight: 2.00 LBS
    (weight shown may be the dimensional weight)

    This item must ship via

    No Reviews Found, be the first to review this product.
    Number of questions: 0
    Please login to ask a question.

    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)
    GC1A