1978 Mercury Cougar Exhaust Headers & Manifolds
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- Dorman®Cast Iron Natural Exhaust ManifoldMercury Cougar 5.8L / 6.6L 1978, Cast Iron Natural Exhaust Manifold by Dorman®. Position: Driver Side. Color: Natural. Header Coating: Uncoated. This exhaust manifold was precision-engineered and durably manufactured to match the fit...Ideal replacement - this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehiclesReliable construction - durable materials resist warping, cracking and leaking for long-lasting performance$136.43
- ATP®Cast Iron Natural Exhaust ManifoldMercury Cougar 1978, Natural Cast Iron Exhaust Manifold by ATP®. Position: Driver Side. Color: Natural. Header Coating: Uncoated. ATP Graywerks Exhaust Manifolds are a high quality OE replacement alternative. Each manifold is developed...Manufactured to OE design ensuring manifold will line up and flow like the original unitHigh grade metallurgy resists fatigue cracking and breakage$154.93
- Dorman®Metal Exhaust Manifold Hardware KitMercury Cougar 5.8L / 6.6L 1978, Metal Exhaust Manifold Hardware Kit by Dorman®. Dorman manifold bolt and spring kits are just what you need to secure the front flange. Dorman offers products like fasteners and solutions to keep your...Direct replacement for a proper fitBuilt to Last$11.39 - $13.25
- Patriot Exhaust®Classic Style Lakester Exhaust HeadersMercury Cougar 1978, Classic Style Lakester Exhaust Headers by Patriot Exhaust®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3.5". Header Coating: Ceramic. Classic design allows for hookup to an under chassis exhaust...Expertly crafted from premium materialsQuality design and workmanship$542.57 - $651.78
- Stage 8®Steel Nickel plated Header Locking Bolt KitMercury Cougar 6.6L 1978, Steel Nickel plated Header Locking Bolt Kit by Stage 8®. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable and reusable and can be visually inspected; if...Thoughtfully designed for the highest efficiency and safetyWill provide more breakaway torque than any other locking system$75.82
- Fel-Pro®Exhaust Manifold Gasket SetMercury Cougar 1978, Exhaust Manifold Gasket Set by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the gaskets...Ensures reliable sealing performanceMade using advanced technologies and molded rubber chemistry$11.58 - $30.15
- Mahle®Exhaust Manifold Gasket SetMercury Cougar 1978, Exhaust Manifold Gasket Set by Mahle®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...High quality at an affordable priceExpertly made from premium materials$13.47 - $32.60
- Remflex®Exhaust Header GasketsMercury Cougar 1978, Exhaust Header Gaskets by Remflex®. Remflex's unique flexible graphite material has been proven for more than 30 years in industrial applications. Whether you have an old pick-up that needs a manifold gasket or a...Designed to crush 50%This allows them to fill gaps in the flange surface up to 1/16"$30.87 - $38.87
- Hedman Hedders®Header Flange GasketsMercury Cougar 5.0L / 5.8L 1978, Header Flange Gaskets by Hedman Hedders®. Hedman gaskets are made of a special gasket material developed for Hedman. Accept no substitute.Made of High Quality MaterialsEasy to Install$15.03
- Patriot Exhaust®Percy's Seal-4-Good™ Exhaust Header GasketsMercury Cougar 1978, Percy's Seal-4-Good™ Exhaust Header Gaskets by Patriot Exhaust®. The Percy's Seal-4-Good Reusable Flange Gaskets are multi-layered and made from a special "Dead Soft" Aluminum, which conforms to header flanges for...Special "dead soft" aluminum conforms to flange to make an excellent sealSolid metal gasket will not blow out$44.95
- Apex Auto®Exhaust Manifold Gasket SetMercury Cougar 5.0L / 5.8L Windsor Engine 1978, Exhaust Manifold Gasket Set by Apex Auto®. Designed utilizing the latest technology, this product by Apex Auto features premium quality and will perform better than advertised. Perfect for...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$9.01
- JBA®Exhaust Header GasketsMercury Cougar 5.0L 1978, Exhaust Header Gaskets by JBA®. JBA is proud to offer accessories to aid in the fitment of your JBA exhaust product. This product is made of high-quality materials to serve you for years to come. Designed using...JBA's premium header flange gaskets are made extra thick from a specially made formulated gasket materialTheir gaskets are rated up to 1100 F$36.95
- Patriot Exhaust®Percy's Seal-4-Good™ Oval Dual Bolt Header Flange GasketsMercury Cougar 5.0L 1978, Percy's Seal-4-Good™ Oval Dual Bolt Header Flange Gaskets by Patriot Exhaust®. Hanger made from Steel. Great for bringing back the custom car look some popular in the 50's and 60's.Will cover your exhaust needs and even moreBuilt to last$44.95
- Fel-Pro®Exhaust Manifold Hardware KitMercury Cougar 1978, Exhaust Manifold Hardware Kit by Fel-Pro®. If you are looking for quality sealing solutions, Fel-Pro offers you various replacement products from seals and bolts to O-Rings and dowel pins. Engineered using the...Direct OEM replacement for a proper fitEnsures reliable sealing performance$30.21 - $45.19
- Hedman Hedders®Block Hugger Mild Steel Uncoated Racing Exhaust HeadersBlock Hugger Mild Steel Uncoated Racing Exhaust Headers by Hedman Hedders®. Primary Tubing Diameter: 1.5". Collector Outlet Diameter: 2.5". Color: Silver. Header Coating: Uncoated. Hedman’s Standard Block Hugger design is ideal for...Low profile designBuilt of High Quality Materials$310.19
- Dorman®Brass Exhaust Manifold NutsBrass Exhaust Manifold Nuts by Dorman®. Dorman's Exhaust Nuts are now available separately for exhaust manifold repairs. These direct replacement nuts are ideal for securing exhaust components and used in conjunction with a mating bolt...Direct replacement for a proper fit every timeHigh-quality materials provides years of trouble-free service$4.76
- Victor Reinz®Exhaust Manifold Gasket SetMercury Cougar 1978, Exhaust Manifold Gasket Set by Victor Reinz®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your...High quality at an affordable priceExpertly made from premium materials$10.71 - $16.93
- Nickson®Exhaust Manifold InsulatorExhaust Manifold Insulator by Nickson®. Nickson was the first to introduce exhaust products to the aftermarket. This represented a substantial upgrade in the quality of products especially since they took both the Ford and GM OE designs...Expertly crafted from premium materialsQuality design and workmanship$6.02
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1978 Mercury Cougar Models
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