Skip to main content
Welcome to the NEW WCCC Cougar Parts Catalog
(Click here to tell us what you think)
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]
true

Harmonic Balancer - 289 - Rebuilt ~ 1967 - 1968 Mercury Cougar / 1967 - 1968 Ford Mustang

Item #: 23837
There are no reviews yet Write a review
Cost: 20667
Earns: 1034
Bonus: 0

Price: $258.33
    The product is in stock Availability*: In-Stock Item
    Usually leaves warehouse: Next Business Day
    In-Stock Item Quantity: 2
    In-Stock Item - Ships in: Next Business Day

    C5AE-6316-A All 1967 and 1968 Mercury Cougar includes both C code 289-2V and A code 289-4V engines. 1967 and 1968 only, 6-5/16 inches in diameter, 3/4 inches thick, cast iron construction with key way groove. Has the timing marks on rim. Refundable $50.00 core charge when rebuildable C5AE-6316-A harmonic balancer is received by WCCC.
    *Note - Not for the K code 271Hp 289 HiPo engines.We don't offer that one because Ford never installed that engine in any Cougar. We can offer the rebuilding service, but you must provide the correct balancer with either C7ZE-6316-A or C5OE-6316-A Ford casting numbers.

    Click on images to enlarge.

    This is a picture of a 40 year old piece of rubber removed from a harmonic balancer.  Notice how dry and cracked it is.  The premium black silicone (high temperature) rubber we use is not affected by even continual heat (up to 400 F.) or engine motor oil.  The modern material used in our balancers cost about $200 per gallon and will not look like what you see here 40 years later.  [You will want to prevent submersion in solvents or gasoline as this type of rubber will absorb solvents.]   

    The little metal staple you see embedded in the rubber below is for anti static purposes, its job is to ground the inner portion of the part to the outer ring.  Over the years the low quality metal used is usually deteriorated beyond usefulness. 

    Our units have this Beryllium copper spring embedded in them for grounding.  This spring boasts 201,000 pounds of tensile strength and will ensure you get no radio static as a result of the balancer.

    Shipping Weight:
    9.00 LBS
    (weight shown may be the dimensional weight)
    Shipping Dimensions:

    Core Returns

    • Eligibility: Cores must be deemed "rebuildable" by our team. Please email a photo and description before sending if you are unsure.
    • Refund Type:
      • Within 30 days: Refund the corresponding purchase on the original payment method. 
      • Within 30-90 days: In-Store credit.
    • Shipping Address:
      WCCC Core Return for (Your Order Number)
      5377 Waconda Rd NE Salem, OR 97305

    When returning items to us (including cores), please consider using PirateShip.com , which is a service (free registration required) with shipping rates that are upto 85% cheaper than what you will get directly through USPS, FedEx or UPS. The rates offered by PirateShip.com are on par with the rates we get and sometimes even cheaper than what we can offer.

    Please Note: We are not affiliated with PirateShip.com ; they are simply a 3rd party shipping service with great rates. We do not get any kickbacks from them, nor do we have access to shipment info for packages shipped through them. We are just providing a customer service by letting you know about a shipping service that could save you significant money.

    Acceptable Cores video

    Do not send us pretzel shaped parts, parts you have attempted to fix yourself, or flattened out parts. We need trim parts showing only MINOR dents, dings, dullness, or scratches.

    If you have viewed our video on how to determine if your core is acceptable and still have further questions, please fill out our contact form and we will help you evaluate your trim cores.

    Number of questions: 0

    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:

    Help Improve this Product Listing

    I know it is hard to believe, but sometimes we make mistakes.
    Other times customers have more knowledge about a particular product than we do.
    Again, hard to believe, I know, but it is true.

    We greatly appreciate when customers want to help us make our site better.
    Because of this, we have developed a way for you to easily send suggestioned improvements to us.

    Help us improve this product