1979 Mercury Cougar Engine Additives
Keep Your 1979 Mercury Cougar in Top Shape with Quality Engine Additives
Whether you’re repairing or upgrading your Engine Additive, using high-quality parts is key to keeping your 1979 Mercury Cougar looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including . 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.
Top-Rated Engine Additives from Trusted Brands
Looking for a reliable Engine Additive? We’ve got you covered with options from brands you know and trust like Powertrax. For example, Powertrax Engine Additives start at just $444.99 with an average 4.7 star rating. With over 4 reviews and a solid 5 star average, you can shop with confidence knowing other Mercury Cougar owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1979 Mercury Cougar Engine Additive at Advance Auto Parts is around $285.49, with a range that starts at $5.99 and goes up to $496.99. With 8 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Copper Washer For Ford 9" & 8" Dropout Housing, Dropout Housing Stud For Ford 8" & 9", and Spartan Spring & Pin Kit, Fits Smaller Designs start at just $5.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Engine Additive, don’t forget to check out other key components like Coolant/Antifreeze and Transmission Additives. At Advance Auto Parts, we’re here to help you keep your 1979 Mercury Cougar in peak condition, inside and out.
Essential 1979 Mercury Cougar Engine Additives
Yukon Gear – Dropout Housing Stud For Ford 8" & 9" (Part No.32338)
Yukon Gear – Copper Washer For Ford 9" & 8" Dropout Housing (Part No.32339)
Powertrax – Lock Right Locker (Part No.1810-LR)
from
$339.99
The Powertrax Lock-Right ultra-strength alloy locker’s straight-line performance is equal to a solid spool, but automatically unlocks in turns. Best suited for extreme off-road to severe on-road use, Powertrax Lock Right lockers replace the spider gears in your open differential carrier using basic tools and without affecting your ring and pinion settings. The whole job can be done in your driveway in a couple of hours, pin included! Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles. Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction. Powertrax® = Extreme Traction Systems!
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Powertrax – Grip PRO Traction System (Part No.GT109028)
from
$496.99
For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!
See More
Powertrax – Grip PRO Traction System (Part No.GT108028)
from
$537.99
For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!
See More
USA Standard Gear – Spartan Spring & Pin Kit, Fits Smaller Designs (Part No.17011)
from
$26.99
Spartan spring & pin kit, fits smaller designs.
Product Features:
See More
Product Features:
- Replacement spring and pin kit for Spartan Locker
- Fits Dana 30, Dana 44, AMC Model 20, AMC Model 35, and Toyota designs
- Includes 4 springs and 4 alignment pins
Powertrax – Grip PRO Traction System (Part No.GT109031)
from
$496.99
For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!
See More
Powertrax – Lock Right Locker (Part No.1830-LR)
from
$444.99
The Powertrax Lock-Right ultra-strength alloy locker’s straight-line performance is equal to a solid spool, but automatically unlocks in turns. Best suited for extreme off-road to severe on-road use, Powertrax Lock Right lockers replace the spider gears in your open differential carrier using basic tools and without affecting your ring and pinion settings. The whole job can be done in your driveway in a couple of hours, pin included! Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles. Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction. Powertrax® = Extreme Traction Systems!
See More
Powertrax – Grip LS Traction System (Part No.LS108831)
from
$463.99
For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!
See More
Popular 1979 Mercury Cougar Engine Additives Categories
Most Popular Posi Units and Components for 1979 Mercury Cougars
Enhance your 1979 Mercury Cougar with one of the 8 Posi Units and Components we have in stock, starting at just $5.99.
Powertrax – Lock Right Locker (Part No.1830-LR)
from
$444.99
The Powertrax Lock-Right ultra-strength alloy locker’s straight-line performance is equal to a solid spool, but automatically unlocks in turns. Best suited for extreme off-road to severe on-road use, Powertrax Lock Right lockers replace the spider gears in your open differential carrier using basic tools and without affecting your ring and pinion settings. The whole job can be done in your driveway in a couple of hours, pin included! Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.Powertrax® = Extreme Traction Systems!
See More
Yukon Gear – Copper Washer For Ford 9" & 8" Dropout Housing (Part No.32339)
Yukon Gear – Dropout Housing Stud For Ford 8" & 9" (Part No.32338)
USA Standard Gear – Spartan Spring & Pin Kit, Fits Smaller Designs (Part No.17011)
from
$26.99
Spartan spring & pin kit, fits smaller designs.
Product Features:
See More
Product Features:
- Replacement spring and pin kit for Spartan Locker
- Fits Dana 30, Dana 44, AMC Model 20, AMC Model 35, and Toyota designs
- Includes 4 springs and 4 alignment pins
Powertrax – Grip PRO Traction System (Part No.GT109028)
from
$496.99
For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!
See More
Powertrax – Grip PRO Traction System (Part No.GT109031)
from
$496.99
For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!
See More
Powertrax – Grip LS Traction System (Part No.LS108831)
from
$463.99
For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!
See More
Powertrax – Lock Right Locker (Part No.1810-LR)
from
$339.99
The Powertrax Lock-Right ultra-strength alloy locker’s straight-line performance is equal to a solid spool, but automatically unlocks in turns. Best suited for extreme off-road to severe on-road use, Powertrax Lock Right lockers replace the spider gears in your open differential carrier using basic tools and without affecting your ring and pinion settings. The whole job can be done in your driveway in a couple of hours, pin included! Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.Powertrax® = Extreme Traction Systems!
See More
Top-Rated Engine Additive Brands For Your 1979 Mercury Cougar
When it comes to finding the perfect Engine Additive for your 1979 Mercury Cougar, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 3 trusted brands. We carry the most popular Engine Additive brands including Powertrax, and more, all known for their exceptional customer ratings (average brand rating of 4.7 stars) and competitive prices, as low as $444.99. Purchasing a Engine Additive from us here at Advance Auto Parts is a smart move for both you and your 1979 Mercury Cougar, providing peace of mind with parts that meet or exceed OEM standards.
Popular Powertrax 1979 Mercury Cougar Engine Additives
If you’re looking for a top-quality Engine Additive for your 1979 Mercury Cougar, Advance Auto Parts has exactly what you need with our selection of Powertrax Engine Additives. We have 1 Powertrax Engine Additives in stock for this fitment, all known for their durability and precision fit. With prices starting at just $444.99, you’ll find the perfect Engine Additive for your needs and budget. Powertrax Engine Additives for the 1979 Mercury Cougar come highly rated, with over 1 customer reviews and an impressive average rating of 4.7 stars. Choosing a Powertrax Engine Additive from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
FAQs for 1979 Mercury Cougar Engine Additives
What are the best-selling Engine Additives for 1979 Mercury Cougars?
Out of 8 Engine Additives that fit 1979 Mercury Cougars, the following parts are the top sellers:
- Copper Washer For Ford 9" & 8" Dropout Housing (11643432) – $5.99
- Dropout Housing Stud For Ford 8" & 9" (11643043) – $7.99
- Spartan Spring & Pin Kit, Fits Smaller Designs (11599232) – $26.99
What’s the price range for 1979 Mercury Cougar Engine Additives?
The prices of Engine Additives for the 1979 Mercury Cougar range from $5.99 up to $496.99 for the most premium parts.
What is the average price of an Engine Additive for a 1979 Mercury Cougar?
The average price for Engine Additives for the 1979 Mercury Cougar is $285.49. Keep in mind the variety of part types within our Engine Additive category, where you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Engine Additives for other Mercury Cougar model years?
What are the cheapest Engine Additives for my 1979 Mercury Cougar?
The cheapest 1979 Mercury Cougar Engine Additives we carry are:
- Copper Washer For Ford 9" & 8" Dropout Housing (11643432) – $5.99
- Dropout Housing Stud For Ford 8" & 9" (11643043) – $7.99
- Spartan Spring & Pin Kit, Fits Smaller Designs (11599232) – $26.99
- Lock Right Locker (10461184) – $339.99
- Lock Right Locker (10461152) – $444.99
Does Advance Auto Parts sell Engine Additives for any other 1979 Mercury models?
Yes. We stock Engine Additives for 5 other popular 1979 Mercury models. Some of the most popular are 1979 Monarch Engine Additives, 1979 Bobcat Engine Additives, and 1979 Zephyr Engine Additives.
What are the top-rated Engine Additives that fit the 1979 Mercury Cougar?
The one 1979 Mercury Cougar Engine Additive we have in stock is the Copper Washer For Ford 9" & 8" Dropout Housing. It costs $5.99.
What types of Engine Additives do you sell for my 1979 Mercury Cougar?
We currently have just 1 Engine Additive in stock for a 1979 Mercury Cougar, and as of 3/1/26, it is .
Can I get help with 1979 Mercury Cougar Engine Additive orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Mercury Engine Additives and more.
What is your return policy for Mercury Cougar Engine Additives?
Advance Auto Parts keeps returns simple. For new Mercury Cougar Engine Additives and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.