1984 Mercury Cougar Emission Control Parts
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WVE®EGR ValveMercury Cougar 3.8L 1984, EGR 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$87.10 - Motorcraft®PCV ValveMercury Cougar 1984, PCV Valve 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 meet your...Direct OEM replacementMeets strict Ford Motor Company standards$7.77 - $25.68
- Standard®PCV ValveMercury Cougar 1984, 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$3.70 - $5.89
- Gates®Breather CapMercury Cougar 1984, 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 - $9.03
- Standard®EGR ValveMercury Cougar 1984, 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$45.68 - $114.62
- WVE®PCV ValveMercury Cougar 1984, 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$4.15 - $6.20
- Forecast®PCV ValveMercury Cougar 5.0L 1984, 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 1984, 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 - $9.01
- Bosch®Premium Narrow-band Oxygen SensorMercury Cougar 2.3L 1984, Premium Narrow-band Oxygen Sensor by Bosch®. Position: Upstream. A worn-out oxygen sensor can cause engine performance problems and shorten the life of the catalytic converter. Tune-up your vehicle with an...OE Identical ConnectorCompact Design$36.71
- WVE®Vapor Canister Purge SolenoidMercury Cougar 1984, Vapor Canister Purge Solenoid 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...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$38.02
- Denso®Oxygen SensorMercury Cougar 2.3L 1984, Oxygen Sensor by Denso®. Position: Upstream. Make sure your engine runs efficiently and produces fewer emissions by replacing your malfunctioning fuel-ratio sensors with these top-notch products designed by...High quality plastic and/or steel constructionDirect replacement for a proper fit every time$39.26
- Walker Products®Oxygen SensorMercury Cougar 1984, Oxygen Sensor by Walker Products®. Position: Upstream. 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...High quality at an affordable priceExpertly made from premium materials$25.04 - $33.26
- Walker Products®Premium Oxygen SensorMercury Cougar 1984, Premium Oxygen Sensor by Walker Products®. Position: Upstream. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test...Improved Engine Response & PerformanceLower Emissions$37.23 - $41.45
- NTK®Oxygen SensorMercury Cougar 1984, Oxygen Sensor by NTK®. Position: Upstream. Thimble type sensors feature a ceramic element that projects into the exhaust system and becomes electrically conductive at high temperature. The sensor element then sends...Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement$27.58 - $29.23
- Standard®Vapor Canister Purge SolenoidMercury Cougar 1984, Vapor Canister Purge Solenoid 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...The canister purge solenoid is constructed high grade industrial plastic to withstand low and high heat engine operating temperaturesEach connector and terminal is constructed with OE quality materials to ensure an exact fit connection, resuming peak conductivity to the engine wiring harness, and resulting in a precise engine performance$40.94
- Bosch®Narrow-band Oxygen SensorMercury Cougar 1984, Narrow-band Oxygen Sensor by Bosch®. Position: Upstream. The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to which...OE-EquivalentOE Style connectors and wire lengths$21.55 - $46.46
- Standard®Tru-Tech™ EGR Valve Position SensorMercury Cougar 2.3L 1984, Tru-Tech™ EGR Valve Position Sensor by Standard®. 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...Made with precision and quality in mindDesigned to meet your specific needs$31.68
- Motorcraft®PCV Breather ElementMercury Cougar 5.0L 1984, 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...Built to strict Ford Motor Company specificationsRecommended by Ford Motor Company$4.84
- Motorcraft®Vapor Canister Purge ValveMercury Cougar 1984, Vapor Canister Purge Valve 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...Made of premium materials to ensure durability and reliable performanceIncorporates OE upgrades and innovations$65.25
- Denso®Universal Fit Oxygen SensorMercury Cougar 2.3L 1984, Universal Fit Oxygen Sensor by Denso®. Position: Upstream. Denso's light duty oxygen sensor started to appear on vehicles with the development of fuel injection systems. The basic job of the sensor is to...Corrosion-resistant stainless steel constructionPTFE filter blocks efficiency-robbing contaminants$45.63
- WIX®PCV Breather ElementMercury Cougar 5.0L Canada Built 1984, 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...Low air flow restrictionIncludes a pleated paper filter$6.23
- WVE®Catalytic Converter Mounted Secondary Air Injection Pump Check ValveMercury Cougar 1984, 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$19.38 - $118.30
- Standard®Engine Crankcase Breather ElementMercury Cougar 3.8L 1984, Engine Crankcase Breather Element by Standard®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of...Made with precision and quality in mindDesigned to meet your specific needs$8.61
- Standard®EGR Valve Position SensorMercury Cougar 3.8L / 5.0L 1984, EGR Valve Position Sensor 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$36.60
- Standard®Secondary Air Injection PipeMercury Cougar 1984, Secondary Air Injection Pipe 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...Made with precision and quality in mindDesigned to meet your specific needs$45.79 - $62.37
- Standard®Secondary Air Injection Pump Check ValveMercury Cougar 1984, 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 - $40.36
- Standard®EGR Valve GasketMercury Cougar 1984, 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$14.34 - $15.41
- Dorman®Help™ PCV Valve GrommetMercury Cougar 1984, Help™ PCV Valve Grommet by Dorman®. Location: PCV to Valve Cover. This PCV valve grommet is designed to match the fit and function of the original grommet on specified vehicles, and is engineered for durability...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$3.08 - $3.39
- Standard®PCV Valve GrommetMercury Cougar 1984, PCV Valve Grommet 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...Made with precision and quality in mindDesigned to meet your specific needs$3.61 - $5.32
- Standard®EGR Valve Gasket SetMercury Cougar 1984, EGR Valve Gasket Set 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...Made with precision and quality in mindDesigned to meet your specific needs$2.64 - $2.79
Shop By Service Type
- EGR Valve Replacement
- Air Pump Check Valve Replacement
- Oxygen Sensor Replacement
- EGR Valve Position Sensor Replacement
- Canister Purge Solenoid Replacement
- Secondary Air Injection Hose Replacement
- Positive Crankcase Ventilation (PCV) Valve Replacement
- Crankcase Vent Filter Replacement
- Air Pump Check and Diverter Valve Replacement
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