1975 Mercury Cougar Performance Transmissions

Please Select your Vehicle to See Exact Fit Parts

Keep Your 1975 Mercury Cougar in Top Shape with a Quality Performance Transmission

When it comes to maintaining or upgrading your 1975 Mercury Cougar, choosing high-quality parts is crucial for ensuring your vehicle stays in top shape, whether you’re tackling a repair or enhancing performance. At Advance Auto Parts, we know how important it is to find the right Performance Transmission for your Cougar. We currently carry a top Performance Transmission in stock that is built to last. Whether you’re replacing a damaged Performance Transmission or looking to upgrade, our selection for the 1975 Mercury Cougar ensures you’ll find exactly what you need to keep your vehicle looking and performing its best.

Explore Related Parts

And while you’re here, don’t forget to check out related part categories like Performance Distributors and Performance Fuel Systems to complete your upgrade or repair project. At Advance Auto Parts, we’re proud to offer the parts and expertise to keep your 1975 Mercury Cougar running smoothly and looking great.

Essential 1975 Mercury Cougar Performance Transmissions

B & M – Transpak, 67-91 C6 Transmission (Part No.40228)

Transpak, 67-91 C6 Transmission

from

$178.99
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:
  • Recalibrate Auto. Transmission
  • Optimum Performance
  • Select Your App. Mode
  • Improves Transmission Life
  • Trans. Removal Not Required
See More

B & M – Transmission Shift Kit (Part No.40227)

Transmission Shift Kit

from

$213.99
Transpak – Ford, Lincoln, Mercury – 1980 to 1992 AOD (excludes 1992 and later with electronic shift). Recalibrate your automatic transmission for optimum performance. Select the mode that best suits your application. Improves transmission life. Transmission removal not required. The next step up from the Shift Improver Kit is the Transpak. It has all the features in the Shift Improver Kit plus it provides additional driver manual control (GM TH-400, 350, Ford C-6 and Chrysler Torqueflite only). Most stock automatic transmissions won’t downshift into low gear above 15 mph, and automatically upshift at a predetermined speed no matter what gear you’re in. With the Transpak, you can downshift at any speed, and you can hold the transmission in first gear to any speed that you want! This is an asset when you’ve got a modified engine, and you want additional RPMs, or you’re towing a trailer or driving heavy loads downhill. Stage 1 Heavy Duty – For street rods, normal passenger vehicles or other heavy duty use. Firmer shift feel but not harsh. Improves transmission performance and life dramatically without loss of comfort. Normal automatic operation when in Drive. Stage 2 Hi-Performance Street – For full performance street use. Essentially the same as Heavy Duty mode except shift is much quicker. Retain full automatic features and standard shift points with selector in Drive.

Product Features:
  • Recalibrate Auto. Transmission
  • Optimum Performance
  • Select Your App. Mode
  • Improves Transmission Life
  • Trans. Removal Not Required
  • Downshift At Any Speed
  • Great For Trailer Towing
  • For Heavy Loads Driving Downhill
See More

Most Popular Performance Transmission Shift Kit for 1975 Mercury Cougars

Enhance your 1975 Mercury Cougar with this popular Performance Transmission Shift Kit we have in stock, for $178.99.

B & M – Transpak, 67-91 C6 Transmission (Part No.40228)

Transpak, 67-91 C6 Transmission

from

$178.99
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:
  • Recalibrate Auto. Transmission
  • Optimum Performance
  • Select Your App. Mode
  • Improves Transmission Life
  • Trans. Removal Not Required
See More

FAQs for 1975 Mercury Cougar Performance Transmissions

What’s the price range for 1975 Mercury Cougar Performance Transmissions?

We currently have just one Performance Transmissions for the 1975 Mercury Cougar in stock: Transpak, 67-91 C6 Transmission and it costs $178.99.

Does Advance Auto Parts sell Performance Transmissions for other Mercury Cougar model years?

Yes, we carry Performance Transmissions for 26 model years of Mercury Cougars between 1967 and 2000. The following model years are the most popular for Performance Transmission purchases: 2000, 1999, 1992, 1991, 1990, 1989, 1988, 1987, and 1986.

Does Advance Auto Parts sell Performance Transmissions for any other 1975 Mercury models?

Yes. We stock Performance Transmissions for 2 other popular 1975 Mercury models. Some of the most popular are 1975 Grand Marquis Performance Transmissions, 1975 Montego Performance Transmissions, and 1975 Marquis Performance Transmissions.

What types of Performance Transmissions do you sell for my 1975 Mercury Cougar?

We currently have just 1 Performance Transmission in stock for a 1975 Mercury Cougar, and as of 3/1/26, it is a Performance Transmission Shift Kit.

Can I get help with 1975 Mercury Cougar Performance Transmission orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Mercury Performance Transmissions and more.

What is your return policy for Mercury Cougar Performance Transmissions?

Advance Auto Parts keeps returns simple. For new Mercury Cougar Performance Transmissions and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.