1966 Mercury S-55 Automatic Transmission Kits
Keep Your 1966 Mercury S-55 in Top Shape with Quality Automatic Transmission Kits
Whether you’re repairing or upgrading your Automatic Transmission Kit, using high-quality parts is key to keeping your 1966 Mercury S-55 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Transmission Shift Kits, Transmission Rebuild Kits, and Automatic Transmission Bushing Kits. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.
Competitive Prices and Extensive Inventory
The average price for a 1966 Mercury S-55 Automatic Transmission Kit at Advance Auto Parts is around $129.56, with a range that starts at $59.99 and goes up to $223.99. With 6 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like AT SHIFT KIT, AT BUSHING KIT, and ManTransBrg-SealKit start at just $72.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Automatic Transmission Kit, don’t forget to check out other key components like Torque Converter and Related Products and Transmission Cooler and Parts. At Advance Auto Parts, we’re here to help you keep your 1966 Mercury S-55 in peak condition, inside and out.
Find Your Specific 1966 Mercury S-55 Automatic Transmission Kits
Looking for the perfect Automatic Transmission Kit for your 1966 Mercury S-55? You’re in the right place. Below, you’ll find links to various types of Automatic Transmission Kits that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Automatic Transmission Kits, ensuring durability and a precise fit for your Mercury S-55. Whether you’re driving a 1966 model or another popular model year like
1967, we’ve got you covered. Purchasing Automatic Transmission Kits from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Automatic Transmission Kits that fit your vehicle.
Essential 1966 Mercury S-55 Automatic Transmission Kits
ATP – AT BUSHING KIT (Part No.FBS-2)
from
$75.99
AT BUSHING KIT
B & M – Transpak, 67-91 C6 Transmission (Part No.40228)
from
$174.99
Use the B&M Transpak to recalibrate your automatic transmission for optimum performance. With the Transpak you will be able to downshift into low at any speed, and keep it in low to any speed that you want.
Product Features:
See More
Product Features:
- Recalibrate Auto. Transmission
- Optimum Performance
- Select Your App. Mode
- Improves Transmission Life
- Trans. Removal Not Required
ATP – AT SHIFT KIT (Part No.FK-6)
from
$72.99
AT SHIFT KIT
Popular 1966 Mercury S-55 Automatic Transmission Kits Categories
Most Popular Transmission Shift Kit for 1966 Mercury S-55s
Enhance your 1966 Mercury S-55 with this popular Transmission Shift Kit we have in stock, for $72.99.
ATP – AT SHIFT KIT (Part No.FK-6)
from
$72.99
AT SHIFT KIT
Best-Selling 1966 Mercury S-55 Transmission Rebuild Kits
Upgrade your S-55 with one of our 4 best-selling Transmission Rebuild Kits.
USA Standard Gear – ManTransBrg-SealKit (Part No.73139)
from
$223.99
ManTransBrg-SealKit
USA Standard Gear – ManTransBrg-SealKit (Part No.76155)
from
$183.99
ManTransBrg-SealKit
USA Standard Gear – ManTransBrg-SealKit (Part No.72699)
from
$117.99
ManTransBrg-SealKit
USA Standard Gear – ManTransSmallPartKit (Part No.76195)
from
$59.99
ManTransSmallPartKit
Top-Quality Automatic Transmission Bushing Kits for 1966 Mercury S-55s
Choose a high-quality OEM or aftermarket Automatic Transmission Bushing Kit for Mercury S-55s and enjoy top-notch performance from $75.99.
ATP – AT BUSHING KIT (Part No.FBS-2)
from
$75.99
AT BUSHING KIT
FAQs for 1966 Mercury S-55 Automatic Transmission Kits
What are the best-selling Automatic Transmission Kits for 1966 Mercury S-55s?
Out of 6 Automatic Transmission Kits that fit 1966 Mercury S-55s, the following parts are the top sellers:
- AT SHIFT KIT (11239088) – $72.99
- AT BUSHING KIT (11237501) – $75.99
- ManTransBrg-SealKit (12009600) – $117.99
What’s the price range for 1966 Mercury S-55 Automatic Transmission Kits?
The prices of Automatic Transmission Kits for the 1966 Mercury S-55 range from $59.99 up to $223.99 for the most premium parts.
What is the average price of an Automatic Transmission Kit for a 1966 Mercury S-55?
The average price for Automatic Transmission Kits for the 1966 Mercury S-55 is $129.56. Keep in mind the variety of part types within our Automatic Transmission Kit category, where you are likely to find a wide range of prices across a variety of parts and components.
What are the cheapest Automatic Transmission Kits for my 1966 Mercury S-55?
The cheapest 1966 Mercury S-55 Automatic Transmission Kits we carry are:
- ManTransSmallPartKit (12009418) – $59.99
- AT SHIFT KIT (11239088) – $72.99
- AT BUSHING KIT (11237501) – $75.99
- ManTransBrg-SealKit (12009600) – $117.99
- ManTransBrg-SealKit (12009417) – $183.99
Does Advance Auto Parts sell Automatic Transmission Kits for any other 1966 Mercury models?
Yes. We stock Automatic Transmission Kits for 8 other popular 1966 Mercury models. Some of the most popular are 1966 Monterey Automatic Transmission Kits, 1966 Marauder Automatic Transmission Kits, 1966 Colony Park Automatic Transmission Kits, 1966 Capri Automatic Transmission Kits, and 1966 Comet Automatic Transmission Kits.
What types of Automatic Transmission Kits do you sell for my 1966 Mercury S-55?
As of 11/2/25, these are some of the most in-demand types of Automatic Transmission Kits for a 1966 Mercury S-55:
Can I get help with 1966 Mercury S-55 Automatic Transmission Kit orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Mercury Automatic Transmission Kits and more.
What is your return policy for Mercury S-55 Automatic Transmission Kits?
Advance Auto Parts keeps returns simple. For new Mercury S-55 Automatic Transmission Kits and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.