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MERCURY GRAND MARQUIS Parts and Accessories

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Results 1 - 24 of 43

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ACDelco Conventional Resistor Spark Plugs

ACDelco conventional resistor spark plugs feature a design for reliability and efficient performance. These economical replacements remain ideal for many vehicles and marine applications. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance every time. The spark plugs are available in a variety of sizes and other options for universal and application-specific fitment. Order the model recommended for your vehicle.

4.81 out of 5 stars ( 263 )

$2.99

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Fel-Pro Fuel Pump Gaskets

Fel-Pro offers fuel pump gaskets for thousands of applications. These economical replacements are available in a variety shapes and materials. Order the model recommended for your vehicle and engine family.

4.89 out of 5 stars ( 93 )

$3.99

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ACDelco Gold Platinum Spark Plugs

ACDelco Gold platinum spark plugs are perfect for engines that run on conventional plugs, as well as newer engines that require platinum plugs. These spark plugs can provide up to 100,000 miles of service before needing replacement (service life varies with individual driving conditions.) Features: * Dual platinum tip for improved resistance to spark erosion, fouling, and corrosive combustion chamber environment * Ribless insulator that improves the plug-to-boot seal * Platinum center electrode and platinum pad that lower the ignition demand voltage and reduce possible flame kernel quenching * One-piece integral suppressor seal that helps reduce radio frequency interference, meters spark plug energy to help provide long electrode life, and seals against compression leakage * Maximum engine performance over time * Corrosion-resistant shell to keep up with the demands of any vehicle * Spark gap remains virtually unchanged during the life of the plug * Meets increased auto industry performance and reliability requirements * Available for most makes and models * 100,000-mile (160,000-kilometer) limited warranty

4.87 out of 5 stars ( 99 )

$7.99

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Fel-Pro Differential Cover Gaskets

Vehicles manufactured after 1990 often have differential housings sealed with RTV silicone. Over time, extreme vehicle vibration and even rough roads can cause the RTV bead to break. If the bead breaks and the vehicle loses the axle lube, the transmission gears begin to rub and wear. That's the whining sound that you hear. Unfortunately, it's a repair that needs immediate attention. Fel-Pro offers precut differential replacement gaskets for these applications, so you won't have to worry about applying RTV and waiting for it to set up to seal. These gaskets are available in a variety of materials, thicknesses, and configurations for precise fitment on nearly 70 differential case designs. Order the model recommended for your application—and eliminate the need for messy RTV sealant.

4.75 out of 5 stars ( 227 )

$7.99

$11.99

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Fel-Pro Water Neck Gaskets

Fel-Pro water neck gaskets are available for hundreds of applications, including most engine coolant outlets and thermostat housings. These inexpensive seals are offered in a variety of materials and configurations. Avoid unwanted leaks. Order the gaskets recommended for your vehicle and engine family.

4.71 out of 5 stars ( 273 )

$1.99

$8.99

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Moog Coil Spring Insulators

If you're changing out your coil springs, then you'll need a set of these Moog coil spring insulators. They're manufactured from thick, durable rubber to insulate against the vibration caused by suspension travel. Available for passenger cars, trucks, or SUVs, Moog coil spring insulators are the perfect choice for your repair or restoration project.

4.65 out of 5 stars ( 95 )

$5.99

$8.99

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Fel-Pro Exhaust Pipe Flange Gaskets

Fel-Pro exhaust pipe flange gaskets are high-quality, direct fit OE replacements for your stock original. They're manufactured from a variety of quality materials, such as steel, composite, graphite, and laminate. Well-made gaskets won't burn, shrink, or leak—ensuring a superior seal! These exhaust pipe flange gaskets are available in various styles and configurations for fitment on virtually any make/model. Order the Fel-Pro gaskets that match your vehicle specs.

4.56 out of 5 stars ( 99 )

$3.99

$10.99

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Fel-Pro Fuel Injector O-Ring Sets

Fel-Pro fuel injector O-ring sets help maintain performance vehicle. These replacement rings are engineered to offer a good, tight seal and prevent fuel leakage into hot engine compartments. Over time, your factory O-rings can become worn or cracked—leading to erratic fuel injection. Update the small accessories with the Fel-Pro set recommended for your vehicle and engine application.

4.0 out of 5 stars ( 10 )

$3.99

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Fel-Pro Water Pump Gaskets

Fel-Pro water pump gaskets are offered in a variety of materials and configurations. These replacements are available for thousands of applications. Order the model or set recommended for fitment with your vehicle and engine family.

4.76 out of 5 stars ( 160 )

$3.99

$4.99

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Fel-Pro Air Cleaner Gaskets

Fel-Pro air cleaner gaskets are designed to fit between your air cleaner and carburetor or TBI. They create a positive seal that will help prevent unfiltered air from entering your engine. Order the replacement gasket recommended for your vehicle and engine application.

4.85 out of 5 stars ( 62 )

$2.99

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ACDelco Light Bulb Sockets

ACDelco light bulb sockets are replacement lamp bulb holders for your vehicle's interior and exterior lighting. The bulb sockets securely hold the bulb and provide the electrical connection to operate the bulb. These original equipment light bulb sockets have been manufactured to fit specific GM vehicle factory light assemblies. They're available for more than a hundred lighting connections on most vehicles. Order the model designed for your application.

4.18 out of 5 stars ( 22 )

$4.99

$5.99

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ACDelco Silver Wiper Blades

ACDelco Silver wiper blades help to keep your windshield clean and clear. These dependable replacements include a lineup with their all-season metal blades and beam blade styles. But no matter what you choose, all the Silver wiper blades will provide ACDelco quality and performance, as well as the proper fit and function at an economical price. Order the set designed for your vehicle application.

4.36 out of 5 stars ( 22 )

$3.99

$4.99

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Fel-Pro Oil Pump Gaskets

Fel-Pro offers oil pump gaskets for thousands of applications. These replacement seals are available in a variety of materials and configurations. Order the model recommended for your vehicle and engine family.

4.74 out of 5 stars ( 34 )

$2.99

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Fel-Pro Oil Pan Drain Plug Gaskets

Fel-Pro oil pan drain plug gaskets will eliminate annoying drips. These seals are designed to ensure secure fitment of the drain plug and facilitate a hassle-free installation. They're constructed from durable materials, like nylon and rubber, to resist corrosion and offer lasting durability. Order the replacement recommended for your vehicle year/make and engine application.

4.0 out of 5 stars ( 15 )

$1.99

$2.99

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ACDelco Gold Synthetic Engine Oil

With a range of viscosities and oil types, ACDelco Gold synthetic engine oil is a smart choice for General Motors vehicles and offers consistent performance suited for most makes and models of vehicles, including special applications. Backed by GM, ACDelco Gold oil provides engine lubrication and protects against high-temperature deposits, minimizing wear and friction. It meets ILSAC GF-6 specifications, a performance standard designed to improve fuel economy and enhance engine capabilities for passenger cars, to fulfill current energy-conserving performance standards. Choose the recommended grade of oil for your vehicle as found within your owner's manual.

5.0 out of 5 stars ( 1 )

$6.99

$8.99

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Fel-Pro Harmonic Balancer Repair Sleeves

Fel-Pro harmonic balancer repair sleeves are designed to prevent the leaks associated with your timing cover seal. These handy service accessories are made of steel and will help seal the gaps caused by worn-out harmonic balancer shafts. The sleeves are available for thousands of vehicle and engine family applications.

4.87 out of 5 stars ( 31 )

$10.99

$11.99

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ACDelco RAPIDFIRE Performance Platinum Spark Plugs

ACDelco RAPIDFIRE platinum spark plugs fit engines that require conventional or platinum plugs—offering quicker throttle response, smoother idle, better corrosion protection, and greater longevity when compared to conventional plugs. RAPIDFIRE platinum spark plugs are available for most vehicle makes and models and several marine applications. Product features: * Ribless insulator that improves the plug-to-boot seal * Tapered and columned center wire electrode with a platinum pad that reduces the firing diameter—and helps improve the firing efficiency by concentrating and directing energy needed to fire the plug with less voltage * A platinum center electrode and platinum pad lower the ignition demand voltage and reduce possible flame kernel quenching * One-piece integral suppressor seal helps reduce radio frequency interference, meters spark plug energy to prolong electrode life, and seals against compression leakage * An expected life of 50,000 miles or better * Gapped to the engine's original factory specifications * 30-day, money-back guarantee and 3-year limited warranty

4.64 out of 5 stars ( 117 )

$4.99

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Fel-Pro Performance Carburetor Mounting Gaskets

Fel-Pro Performance carburetor mounting gaskets are a step above the rest. Fel-Pro starts with premium-quality, application-specific materials to ensure a perfect fit, performance, and durability. Engineered to exacting standards with proprietary design and manufacturing processes, Fel-Pro gaskets meet or exceed all OEM specifications. The gaskets are available for fitment on a wide range of carburetor flanges. Choose the design and options that best suit your make/model.

4.89 out of 5 stars ( 136 )

$10.99

Summit Bucks

ACDelco Wiring Connectors

The average vehicle today has hundreds of wiring connectors. ACDelco connectors are available for everything needed, from antennas to trailer wiring, as well as an array of multi-purpose connectors to maintain the optimal operation of your vehicle. Choose GM-recommended replacement wiring connectors to ensure the same performance, durability, and service life you've come to expect from General Motors products.

4.95 out of 5 stars ( 38 )

$4.99

$6.99

Summit Bucks

Moog Sway Bar End Links

Sway bar end links connect the sway bar to the rest of your suspension. If your links are damaged or worn, then your sway bar will not perform its best. Moog's line of sway bar end links comes in a variety of shapes and styles, both direct OE-replacement and universal. Moog's rubber end links are direct replacements for stock end links. Easy to assemble, they provide a cushion to absorb vibration and noise. The next step up in performance and durability is Moog's thermoplastic end links. They provide improved handling, are very durable, and last longer than OE rubber end links. Tougher and a little harder, thermoplastic end links are resistant to oils, salt, ozone, and weather; they can absorb substantial loads. Moog's polyurethane end links have very little give and offer the best overall performance boost. Each bushing is designed with a lip to ensure proper alignment. Moog's polyurethane material is resistant to oil, heat, and the ozone. Select OE-replacement models feature full-ball metal studs for smooth rotational movement. Maximize your vehicle's performance and value with a set of Moog's sway bar end links, all covered by Moog's lifetime warranty.

4.72 out of 5 stars ( 428 )

$6.99

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ACDelco Crankshaft Front Seals

ACDelco designs their high-quality crankshaft front seals to fit various radial shafts and seal in engine oil while keeping dirt and water out. Featuring synthetic rubber or plastic composite materials, these engine seals conform to the rotating crankshaft sealing surface to help provide leak-free operation. The OE-style replacements provide the same fit and performance you expect from all General Motors parts. They're available in models for virtually any vehicle on the road today.

2.78 out of 5 stars ( 23 )

$4.99

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Fel-Pro Axle Drive Flange Gaskets

Fel-Pro axle drive flange gaskets are designed to fit between your axle tube housing end and the bearing retainer plates. They're available in a variety of materials and configurations for fitment on specific axle housing flange applications (including most rear-wheel drive vehicles).

4.58 out of 5 stars ( 60 )

$3.99

$4.99

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Fel-Pro Valve Stem Seals

Fel-Pro valve stem seals are available in a variety of sizes, styles, and materials. These small components perform a valuable role—controlling the lubrication of the valve stems as they slide in the valve guide. Too little oil causes stem and guide wear; too much increases oil consumption and can cause a buildup of carbon. This can lead to valve seat damage and early valve grind. Order the replacement set recommended for your vehicle and engine application.

4.5 out of 5 stars ( 107 )

$9.99

$10.99

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Fel-Pro Oil Filter Adapter Gaskets

Fel-Pro offers a wide selection of gaskets, along with other engine sealing components for high performance vehicles and everyday cars, trucks, and SUVs. Their oil filter adapter gaskets are available in a variety of materials and configurations for OE-style fitment. Order the replacement seals recommended for your vehicle and engine application.

4.75 out of 5 stars ( 16 )

$9.99

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