1991 Mercury Grand Marquis Exhaust Systems
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Mahle®Exhaust Manifold Gasket SetMercury Grand Marquis 5.0L 1991, 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...High quality at an affordable priceExpertly made from premium materials$13.47 - $25.02 - Hedman Hedders®Header Flange GasketsMercury Grand Marquis 5.0L 1991, 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$14.50
- Patriot Exhaust®Percy's Seal-4-Good™ Exhaust Header GasketsMercury Grand Marquis 1991, 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...Special "dead soft" aluminum conforms to flange to make an excellent sealSolid metal gasket will not blow out$45.85 - $52.21
- Patriot Exhaust®Percy's Seal-4-Good™ Oval Dual Bolt Header Flange GasketsMercury Grand Marquis 1991, 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$45.85
- AP Exhaust®DGM Style Natural Exhaust ClampMercury Grand Marquis 5.0L 1991, DGM Style Natural Exhaust Clamp by AP Exhaust®. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is that a product demand is not...Made from first-rate materialsEnsures outstanding durability$1.56
- Walker®Heavy Duty Steel Natural U-Bolt ClampMercury Grand Marquis 5.0L with Dual Exhaust System / Single Exhaust System 1991, Heavy Duty Steel Natural U-Bolt Clamp by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide...Makes installation quick and easyOptimal OE-style fit and quality$2.24
- Fel-Pro®Exhaust Manifold Hardware KitMercury Grand Marquis 5.0L 1991, 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...Direct OEM replacement for a proper fitEnsures reliable sealing performance$29.57 - $44.24
- Fel-Pro®Exhaust Bolt and SpringMercury Grand Marquis 5.0L 1991, Exhaust Bolt and Spring 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$9.21
- Fel-Pro®Exhaust Flange Studs and NutsMercury Grand Marquis 5.0L 1991, Exhaust Flange Studs and Nuts by Fel-Pro®. Set services two exhaust flanges. If you are looking for quality sealing solutions, Fel-Pro offers you various replacement products from seals and bolts to...Direct OEM replacement for a proper fitEnsures reliable sealing performance$27.85
- Bosch®Premium Narrow-band Oxygen SensorMercury Grand Marquis 5.0L 1991, 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...OE Identical ConnectorCompact Design$29.13 - $35.12
- TRQ®Upstream O2 Oxygen SensorMercury Grand Marquis 5.0L 1991, Upstream O2 Oxygen Sensor by TRQ®. TRQ oxygen sensors are manufactured to precise specifications using premium raw materials to optimize your vehicle’s emission system. Each sensor is...Intended to bring your vehicle back to its original gloryBudget-friendly alternative to the OEM part$34.87$35.95Save $1.08 (3%)
- Denso®Oxygen SensorMercury Grand Marquis 5.0L 1991, 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...High quality plastic and/or steel constructionDirect replacement for a proper fit every time$31.52
- Walker Products®Oxygen SensorMercury Grand Marquis 5.0L 1991, Oxygen Sensor by Walker Products®. 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$28.05
- NTK®Oxygen SensorMercury Grand Marquis 5.0L 1991, Oxygen Sensor by NTK®. 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 voltage...Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement$28.71
- Walker Products®Premium Oxygen SensorMercury Grand Marquis 5.0L 1991, Premium Oxygen Sensor by Walker Products®. 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$45.93
- Bosch®Narrow-band Oxygen SensorMercury Grand Marquis 5.0L 1991, 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...OE-EquivalentOE Style connectors and wire lengths$46.46
- Motorcraft®Oxygen SensorMercury Grand Marquis 5.0L 1991, Oxygen Sensor by Motorcraft®. Position: Upstream Front. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with...Built to strict Ford Motor Company specificationsRecommended by Ford Motor Company$68.28
- Denso®Universal Fit Oxygen SensorMercury Grand Marquis 5.0L 1991, 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
- Delphi®Oxygen SensorMercury Grand Marquis 1991, Oxygen Sensor by Delphi®. Position: Upstream. As one of the leading suppliers of oxygen sensor technology since 1978, Delphi planar technology is the result of their OE and aftermarket engineers partnering...Resists high temperatures, vibration damage and wire corrosion to protect signal accuracy, and long lifePatented sensors construction and design$40.83
- 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$298.62
- AP Exhaust®Xlerator Performance Exhaust Muffler with Inlet/Outlet NeckUniversal Xlerator Performance Exhaust Muffler with Inlet/Outlet Neck by AP Exhaust®. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is that a product demand is not...Deep performance soundIncreased exhaust flow$25.34 - $62.13
- Different Trend®Flow II Series Stainless Steel Oval Gray Exhaust MufflerUniversal Flow II Series Stainless Steel Oval Gray Exhaust Muffler by Different Trend®. Muffler Sound: Moderate. Different Trend provides variety of product selections, premium quality products, superior value, and the best in customer...$40.43 - $115.26
- AP Exhaust®Enforcer Series Aluminized Steel Round Glass Pack Exhaust MufflerUniversal Enforcer Series Aluminized Steel Round Glass Pack Exhaust Muffler by AP Exhaust®. Muffler Structure: Straight-through. Muffler Configuration: Center - Center. Today’s exhaust performance market continues to cover a broad...Aluminized materials for superior corrosion protectionIdeal for the economy buyer$13.46 - $38.58
- Dorman®Brass Exhaust Manifold Hardware KitBrass 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 vehicle running its best.Direct replacement for a proper fitBuilt to Last$5.63
- Black Widow®Race Venom Angry Housewife™ Stainless Steel Oval Gray Exhaust MufflerUniversal Race Venom Angry Housewife™ Stainless Steel Oval Gray Exhaust Muffler by Black Widow®. Muffler Sound: Aggressive / Loud. Black Widow Race Venom series mufflers have the same patent pending internal hourglass design as the...$99.00 - $114.00
- Kooks®Stainless Steel Round Stafford Spec Silver Exhaust Muffler (3.5" ID, 3.5" OD, 10" Length)Universal Stainless Steel Round Stafford Spec Silver Exhaust Muffler by Kooks®. Muffler Inlet Diameter: 3.5". Muffler Outlet Diameter: 3.5". Muffler Body Length: 10". Muffler Overall Length: 15.5". Muffler Sound: Aggressive / Loud. This...$64.02
- iD Select®ECO II Universal Fit Catalytic ConverterUniversal ECO II Catalytic Converter by iD Select®. Converter Configuration: Universal Fit. Catalytic Converter Overall Length: 16". Swap out your worn-out or malfunctioning part with this top-notch exhaust product from iD Select....$144.22 - $146.77
- Black Widow®Widowmaker™ Stainless Steel Round Gray Exhaust MufflerUniversal Widowmaker™ Stainless Steel Round Gray Exhaust Muffler by Black Widow®. Muffler Body Length: 10". Muffler Sound: Aggressive / Loud. Muffler Configuration: Center - Center. Black Widow MOST AGGRESSIVE muffler yet and with...$124.00 - $134.00
- Pypes®Race-Pro Series 304 SS Round Silver Exhaust Muffler (2.5" Center ID, 2.5" Center OD, 14" Length)Universal Race-Pro Series 304 SS Round Silver Exhaust Muffler by Pypes®. Muffler Inlet Diameter: 2.5". Muffler Outlet Diameter: 2.5". Muffler Body Length: 14". Muffler Sound: Aggressive / Loud. Muffler Configuration: Center - Center....$60.75$70.75Save $10.00 (14%)
- Borla®S-Type™ Stainless Steel Round Gray Exhaust MufflerUniversal S-Type™ Stainless Steel Round Gray Exhaust Muffler by Borla®. Muffler Inlet Diameter: 2.5". Muffler Outlet Diameter: 2.5". Muffler Body Length: 10". Muffler Overall Length: 15". Muffler Sound: Mild / Stock. Muffler...$191.99 - $197.99
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1991 Mercury Grand Marquis Exhaust Reviews
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SLP® - Loud Mouth™ Stainless Steel Round Bullet-Type Silver Exhaust Resonator (2.5" Center ID, 2.5" Center OD, 14" Length)Posted by Robert (Monroe, WI) / November 20, 20222000 Dodge Dakota
1991 Mercury Grand Marquis Models
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