1986 Mercury Marquis Emission Control Parts
Select Your Submodel
-
Gates®Breather CapMercury Marquis 1986, 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$9.03 - NTK®Oxygen SensorMercury Marquis 1986, 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$29.23
- Standard®EGR ValveMercury Marquis 2.3L 1986, 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...Polyester-reinforced silicone diaphragm resists thermal aging in temperatures up to 200°CInjection-molded high-temperature polymer prevents temperature-releated failures$45.68
- FRAM®PCV ValveMercury Marquis 3.8L 1986, PCV Valve by FRAM®. The Positive Crankcase Ventilation (PCV) system prevents the release of harmful emissions, helps keep engine oil clean and prevents excessive crankcase pressure, which can cause oil leaks....Essential component of the PCV systemRegulates flow of crankcase vapors into the engine$3.11
- Luber-finer®PCV ValveMercury Marquis 1986, PCV Valve by Luber-finer®. PCV valves are designed to precisely return crankcase combustion gases to the air intake system. Overextending the part’s service promotes sludge formation, which clogs the engine's...Designed to deliver optimum performanceRight for your vehicle and lifestyle$3.43 - $3.81
- Stant®Breather CapMercury Marquis 1986, 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$9.01
- TruParts®PCV ValveMercury Marquis 3.8L 1986, PCV Valve by TruParts®. Go with this high-quality product to restore your vehicle’s lost power and bring it back to its optimal condition. Made from the finest materials in compliance with rigorous industry...Made utilizing the finest materials and equipmentEngineered to restore your vehicle to its pristine condition$2.98
- ACDelco®Gold™ Oxygen SensorMercury Marquis 1986, Gold™ Oxygen Sensor by ACDelco®. Position: Upstream. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$32.08
- Luber-finer®PCV Breather ElementMercury Marquis 2.3L 1986, PCV Breather Element by Luber-finer®. 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$2.93
- WVE®EGR Valve Position SensorMercury Marquis 3.8L 1986, EGR Valve Position Sensor 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...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$42.75
- WVE®EGR Valve Position Sensor ConnectorMercury Marquis 3.8L 1986, EGR Valve Position Sensor Connector 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...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$32.77
- CATCO®Pre-OBDII Universal Fit Oval Body Standard Duty Catalytic ConverterMercury Marquis with California Emission / with Federal Emission 1986, Pre-OBDII Standard Duty Catalytic Converter by CATCO®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. With 1 Air Tube. Without O2...$59.23
- Edelbrock®Victor Series PCV Valve Cover BreatherVictor Series PCV Valve Cover Breather by Edelbrock®. These push-in style valve cover breathers contain a foam filter element which allows the engine to properly breathe and traps oil vapor and prevents engine compartment contamination....Made with precision and quality in mindDesigned to meet your specific needs$39.95 - $53.95
- 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
- GReddy®S-Type Breather Tank Replacement Seal CapS-Type Breather Tank Replacement Seal Cap by GReddy®. Designed originally for racing engines, today’s compact production engines can also benefit from the used of Breather Tank Replacement Seal Cap.Designed to deliver trouble-free, consistent performanceRight for your vehicle and racing lifestyle$9.50
- Peterson Fluid Systems®Vacuum RegulatorVacuum Regulator by Peterson Fluid Systems®. Adjustable vacuum regulator is on the leading edge of engine management. It has been proven to regulate crankcase vacuum and hold a steady level through extensive testing. Vacuum can be...All Aluminum construction for light weightCNC Machined$244.18
- Black Forest Industries®Secondary Air Injection Block Off PlateSecondary Air Injection Block Off Plate by Black Forest Industries®. 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....Eliminate clutter with these machined aluminum platesAn OEM metal gasket is included for proper sealing as well as stainless headcap hardware for a complete bolt on installation$32.99
- Walker®Ultra™ Universal Fit Large Oval Body Catalytic ConverterUniversal Ultra™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Oval. Without Air Tube. With O2 Sensor Port. Catalytic Converter Overall Length: 18". The Right converter,...$122.73 - $157.97
- iD Select®ECO GM Universal Fit Large Round Body Catalytic ConverterUniversal ECO GM Catalytic Converter by iD Select®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Round. With 1 O2 Sensor Port. Catalytic Converter Overall Length: 16". Swap out your worn-out or...$197.39
- AP Exhaust®Super X Duty Universal Fit Large Oval Body Catalytic ConverterUniversal Super X Duty Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Oval. Without Air Tube. With 1 Center O2 Sensor Port. Catalytic Converter Overall Length: 17"....$214.23
- Eastern Catalytic®ECO GM II Universal Fit Large Round Body Catalytic ConverterUniversal ECO GM II Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Round. With 1 Angled O2 Sensor Port. Catalytic Converter Overall Length: 16". Whether your...$248.92
- Eastern Catalytic®ECO GM Universal Fit Large Round Body Catalytic ConverterUniversal ECO GM Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Round. Catalytic Converter Overall Length: 16". Whether your catalytic converter is damaged by...$248.27 - $248.92
- Eastern Catalytic®ECO II Universal Fit Large Round Body Catalytic ConverterUniversal ECO II Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Round. With 1 O2 Sensor Port. Catalytic Converter Overall Length: 16". Whether your catalytic...$145.33 - $173.20
- ACAT Global®High Performance Universal Fit Catalytic ConverterUniversal High Performance Catalytic Converter by ACAT Global®. Converter Configuration: Universal Fit. This product features the elaborate design that was engineered with superior precision and refined to the last detail. Made from...$138.95 - $259.95
- ACAT Global®Universal Fit Catalytic ConverterUniversal Catalytic Converter by ACAT Global®. Converter Configuration: Universal Fit. This product features the elaborate design that was engineered with superior precision and refined to the last detail. Made from reliable materials...$121.66 - $231.95
- ReplacementOxygen Sensor SetMercury Marquis 1986, Oxygen Sensor Set by Replacement. Location: Before Catalytic Converter. 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...Expertly crafted from premium materialsDesigned to match rigorous quality standards$19.23
- Herko®EGR Pressure SensorMercury Marquis Canada Built / USA Built 1986, EGR Pressure Sensor by Herko®. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will provide easy, no-hassle installation and help restore proper fuel system...Will help optimize your vehicle’s performance and fuel efficiencyBuilt using high-grade materials for ultimate quality and durability$30.63
- Victor Reinz®Catalytic Converter GasketMercury Marquis 3.8L 1986, Catalytic Converter Gasket 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...High quality at an affordable priceExpertly made from premium materials$3.49
- Chevrolet Performance®Diesel Exhaust FluidDiesel Exhaust Fluid by Chevrolet Performance®. Sold individually. Diesel Exhaust Fluid (DEF) is a non-flammable fluid consisting of 2/3 purified water and 1/3 ammonia-based urea. DEF is used with diesel engine exhaust systems to reduce...High quality at an affordable priceExpertly made from premium materials$11.27
- Fast®Vapor Canister Purge FittingVapor Canister Purge Fitting by Fast®. 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...High quality at an affordable priceExpertly made from premium materials$12.95 - $18.95
Shop By Service Type
Popular Products
1986 Mercury Marquis Models
Popular Searches