1978 Mercury Cougar Emission Control Parts
- Standard®PCV ValveMercury Cougar 1978, PCV Valve by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity to all...Made with precision and quality in mindDesigned to meet your specific needs$4.32 - $5.89
- Gates®Breather CapMercury Cougar 1978, Breather Cap by Gates®. This product is made of high-quality components to meet and exceed strict quality requirements. 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$8.11
- WVE®PCV ValveMercury Cougar 1978, PCV Valve by WVE®. WVE emissions products are made to meet or exceed vehicle manufacturer specifications to work in concert with the fuel system, underhood electronics and the engine to minimize emissions of...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$4.55
- Standard®EGR ValveMercury Cougar 1978, EGR Valve by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity to all...Polyester-reinforced silicone diaphragm resists thermal aging in temperatures up to 200°CInjection-molded high-temperature polymer prevents temperature-releated failures$75.29 - $79.55
- Forecast®PCV ValveMercury Cougar 5.8L 1978, PCV Valve by Forecast®. 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 and deliver...High quality at an affordable priceExpertly made from premium materials$7.61
- Stant®Breather CapMercury Cougar 1978, Breather Cap by Stant®. This cap is designed to keep dirt and debris from entering the engine while allowing the crankcase ventilation that is so critical for proper engine performance and to prevent leaks....Enables crankcase ventilationPrevents dirt and debris from entering engine$5.47
- WVE®Catalytic Converter Mounted Secondary Air Injection Pump Check ValveMercury Cougar 1978, Catalytic Converter Mounted Secondary Air Injection Pump Check Valve by WVE®. WVE emissions products are made to meet or exceed vehicle manufacturer specifications to work in concert with the fuel system, underhood...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$19.61 - $41.19
- Motorcraft®PCV Breather ElementMercury Cougar 1978, PCV Breather Element by Motorcraft®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will...Built to strict Ford Motor Company specificationsRecommended by Ford Motor Company$4.69
- WIX®PCV Breather ElementMercury Cougar 1978, PCV Breather Element by WIX®. Wix Breather Filters remove chemical contaminants and particulate matter from the crankcase. They are made of pleated paper and connected to the breather tube. These filters also trap...Low air flow restrictionIncludes a pleated paper filter$6.23
- Standard®Secondary Air Injection Pump Check ValveMercury Cougar 1978, Secondary Air Injection Pump Check Valve by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest...Made with precision and quality in mindDesigned to meet your specific needs$34.96
- Standard®EGR Valve GasketMercury Cougar 1978, EGR Valve Gasket by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity to...Made with precision and quality in mindDesigned to meet your specific needs$1.72 - $29.28
- Dorman®Help™ PCV Valve GrommetMercury Cougar 1978, Help™ PCV Valve Grommet by Dorman®. This PCV valve grommet is designed to match the fit and function of the original grommet on specified vehicles, and is engineered for durability and reliable performance.Direct replacement - this PCV valve grommet is designed to match the fit and function of the original grommet on specified vehiclesRestores functionality - this grommet is made to fit and fully restore part functionality after the original grommet fails$2.73 - $3.08
- Dorman®Help™ PCV Valve ElbowMercury Cougar 1978, Help™ PCV Valve Elbow by Dorman®. Location: Hose to Oil Filler. This PCV valve elbow is designed to match the fit and function of the original elbow on specified vehicles, and is engineered for durability and...Direct replacement - this PCV valve elbow is designed to match the fit and function of the original elbow on specified vehiclesRestores functionality - reliable replacement for an original elbow that is leaking or has failed due to heat and fatigue$3.37
- WVE®PCV Valve GrommetMercury Cougar 1978, PCV Valve Grommet by WVE®. WVE emissions products are made to meet or exceed vehicle manufacturer specifications to work in concert with the fuel system, underhood electronics and the engine to minimize emissions of...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$5.68
- ACDelco®Gold™ PCV Valve ElbowMercury Cougar 1978, Gold™ PCV Valve Elbow by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...High quality plastic and/or steel constructionDirect replacement for a proper fit every time$9.34Save: $1.39 (15%)$7.95
- Standard®PCV Valve ElbowMercury Cougar 1978, PCV Valve Elbow by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity to...Made with precision and quality in mindDesigned to meet your specific needs$3.50
- WVE®EGR Valve GasketMercury Cougar 1978, EGR Valve Gasket by WVE®. WVE emissions products are made to meet or exceed vehicle manufacturer specifications to work in concert with the fuel system, underhood electronics and the engine to minimize emissions of...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$3.76 - $12.41
- Apex Auto®EGR Valve GasketMercury Cougar 5.0L / 5.8L Windsor Engine 1978, EGR Valve Gasket by Apex Auto®. Designed utilizing the latest technology, this product by Apex Auto features premium quality and will perform better than advertised. Perfect for your...Quick accurate delivery with excellent fill-rateExcellent inventory availability$1.63
- Edelbrock®EGR Valve GasketMercury Cougar 5.0L with Small Block Windsor Engine 1978, EGR Valve Gasket by Edelbrock®. Designed utilizing the latest technology, this product by Edelbrock features premium quality and will perform better than advertised. Perfect for...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$21.95 - $28.95
- Fel-Pro®EGR Valve GasketMercury Cougar 1978, EGR Valve Gasket 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 meet...Direct OEM replacement for a proper fitEnsures reliable sealing performance$1.83
- MagnaFlow®Pre-OBDII Universal Fit Round Body Catalytic ConverterMercury Cougar with PRE-OBDII Standard 1978, Pre-OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Converter...$560.00
- MagnaFlow®Standard Universal Fit Oval Body Catalytic ConverterMercury Cougar 1978, Standard Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. If your car needs a new catalytic converter,...$114.00 - $162.00
- Walker®CalCat™ Universal Fit Round Body Catalytic ConverterMercury Cougar 5.0L / 5.8L 1978, CalCat™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. With 1 Inlet. Without Air Tube. Without O2 Sensor Port. Catalytic Converter...$558.51
- AP Exhaust®Standard Duty Universal Fit Round Body Catalytic ConverterMercury Cougar 5.0L / 5.8L 1978, Standard Duty Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2"....$80.78
- CATCO®Pre-OBDII Universal Fit Round Body Standard Duty Catalytic ConverterMercury Cougar 5.0L / 5.8L with California Emission / Federal Emission 1978, Pre-OBDII Standard Duty Catalytic Converter by CATCO®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without...$143.15
- Walker®Ultra™ Universal Fit Catalytic ConverterMercury Cougar 1978, Ultra™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. With 1 Inlet. Without Air Tube. Without O2 Sensor Port. Emissions control for better air quality. Direct Fit catalytic converters, for...$62.19 - $114.35
- Big End Performance®PCV Breather CapPCV Breather Cap by Big End Performance®. 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 and deliver great...$12.39 - $15.76
- Big End Performance®Clamp On PCV BreatherClamp On PCV Breather by Big End Performance®. This Big End Performance product is just the option for you in case you want to get the most out of your auto. It is made from first-rate materials to provide the highest level of quality....High quality at an affordable priceExpertly made from premium materials$16.27 - $18.98
- Edelbrock®Victor Series Race Style PCV BreatherVictor Series Race Style PCV Breather by Edelbrock®. Designed utilizing the latest technology, this product by Edelbrock features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$44.95
- Granatelli Motor Sports®Valve Cover BreatherValve Cover Breather by Granatelli Motor Sports®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet your...Made with precision and quality in mindDesigned to meet your specific needs$15.96
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1978 Mercury Cougar Models
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