Skip to main content
International Customers
(
Click Here
)
Close X
Make & Year
SEARCH
All Makes & Years
1967 Mercury Cougar
1968 Mercury Cougar
1969 Mercury Cougar
1970 Mercury Cougar
1971 Mercury Cougar
1972 Mercury Cougar
1973 Mercury Cougar
1967 Ford Mustang
1968 Ford Mustang
1969 Ford Mustang
1970 Ford Mustang
1971 Ford Mustang
1972 Ford Mustang
1973 Ford Mustang
Cart
My Lists
Help
Login
Login
Email Address
Password
Forgot your password?
Register
OR
Sign in with Facebook
Google Sign-in Users Notice
If you set up your account on our website using "Sign on with Google", you must use "Sign on with Google" to log in to our site unless you use the "
Forgot Password
" process to set a password directly with our site.
If you have an existing account with our website but have never enabled "Sign on with Google", you will need to login with your email and password, then go to your "My Account" page to enable "Sign on with Google" before you can use that feature.
Home
Mercury Cougar
1967 Mercury Cougar
1968 Mercury Cougar
1969 Mercury Cougar
1970 Mercury Cougar
1971 Mercury Cougar
1972 Mercury Cougar
1973 Mercury Cougar
Ford Mustang
1967 Ford Mustang
1968 Ford Mustang
1969 Ford Mustang
1970 Ford Mustang
1971 Ford Mustang
1972 Ford Mustang
1973 Ford Mustang
Other Makes
Advice/How-To
Videos
Join
Newsletter
Contact
Us
Shopping Cart
Your cart is empty!
Subtotal
$0.00
Shipping
$0.00
Tax
$0.00
Discount
$0.00
Total
$0.00
View Cart / Checkout
Show Related Items on Add To Cart
Your Saved For Later list is empty.
My Saved Items
Overstock Sale!
Up to 10% off over 2,000 overstocked items
Click link above to activate discount, web-exclusive discounts show in cart
Click Here to Try out the NEW WCCC Cougar Parts Catalog
Welcome to the NEW WCCC Cougar Parts Catalog
(
Click here to tell us what you think
& Earn Rewards
)
Our warehouse is closed for New Years Jan 1-4th.
Orders placed after 12PM PST on Tuesday 12/30/2025 may not ship until Monday (1/5/2026).
International Customers Click Here [Updated 6/2025]
Reviews
1-0 of
0
Sort By...
Rated Low to High
Rated High to Low
Newest to Oldest
Oldest to Newest
10 Per Page
20 Per Page
30 Per Page
40 Per Page
50 Per Page
Relay - Turn Signal - K-5 / 13A366 - NOS ~ 1968 Mercury Cougar
Item #:
12958
stars, based on
0
reviews
This is referred to as the "K5" relay in the Ford service manual. This relay causes the flashing action of the 1968 Mercury Cougar instrument panel indicator lights. The number stamped on this relay is C8WB-13A366-A or C8WB-13A366-C, the Ford part...
← Return to product page
Be the First to Write a Review!
Reviews
1-0 of
0