1986 Mercury Grand Marquis Ignition and Tune-Up Products

Essential 1986 Mercury Grand Marquis Ignition and Tune-Up Products

MSD Ignition – Wire Set; Black Super Conductor; Ford 302; 351W; HEI (Part No.31323)

Wire Set; Black Super Conductor; Ford 302; 351W; HEI

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$147.99
The MSD 8.5mm super conductor wire is the performance wire. Engineered from the inside out, the 8.5 offers everything you have ever wanted in a wire; incredibly low resistance without electronic interference. In a single 12 inch length of super conductor wire there is only 40 – 50 ohms of resistance. That is the lowest resistance of any helically wound wire. To accomplish this, we use a copper alloy conductor due to it’s great voltage carrying capabilities. The low resistance results in less loss in spark energy so more reaches the spark plug. The conductor is wound extremely tight around a special center core. So tight in fact, that there is over 40 feet of conductor wrapped into a single foot of plug wire. This winding procedure, combined with a ferro-magnetic impregnated center core, produces an extremely effective electro magnetic interference (EMI) or choke. This choke, or suppression capability, keeps the EMI inside the wire where it cannot interfere with other electronics on your vehicle. The outer sleeve that surrounds the conductor assembly is just as impressive. A proprietary blend of silicone and synthetic material produce a sleeve that is highly resistant to high heat as well as abrasion and tears. Available in universal kits and bulk lengths.

Product Features:
  • Custom Fit For Make And Model Listed
  • Wires Are Pre-Cut To Exact Specifications
  • Bolt-on Performance
  • Conductor core features DuPont Kevlar material for increased tensile strength
  • Durable outer sleeve is a proprietary compound for resistance to high heat or abrasion
  • Stainless steel terminals feature dual crimp tabs to grip wire conductor and outer jacket separately
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Champion – Double Platinum & Power Spark Plug Exceptional Perf OE Replacement RS12PYPB5 (Part No.7963)

Double Platinum & Power Spark Plug Exceptional Perf OE Replacement RS12PYPB5

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$6.29
Champion® Double Platinum Power spark plugs deliver more powerful performance with premium features. The double platinum power ensures greater wear resistance, while the fine-wire center electrode enhances ignitability. The V-trimmed ground electrode promotes sharper spark focus, and the exclusive Heat-Active alloy allows the electrodes to reach optimal temperature, maintaining stable operating temperature under all engine loads. With a platinum center electrode tip, resistor type, and tapered seat type, this combination guarantees maximum life and exceptional performance for your engine.

Product Features:
  • Double Platinum Power – Premium Spark Plug. More Powerful Performance.
  • Platinum center and ground electrode for greater wear resistance
  • Maintains stable operating temperature under all engine loads
  • Fine-wire center electrode for greater ignitability
  • V-trimmed ground electrode promotes sharper spark focus
  • Heat-Active alloy allows electrodes to reach optimal temperature
  • Platinum Center Electrode Tip: Guarantees maximum life and exceptional performance.
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Carquest Premium – Ignition Control Module Connector (Part No.PTA1257)

Ignition Control Module Connector

from

$15.79
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
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Carquest – Distributor Cap Adapter (Part No.C194A)

Distributor Cap Adapter

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$18.99
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • Designed to OE standards for ease of installation
  • Solid brass terminals (where available) make better connections and greater resistance to electrical pitting and corrosion
  • RFI resistors where specified to eliminate radio static and potential ECU-damaging spikes
  • Capitalizing on decades of research and development, our distributor caps and rotors contain unmatched quality yielding superior performance
  • BWD is a global manufacturer of original equipment ignition products, complete quality control is maintained through the manufacturing process from componentry to finished product
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Carquest Premium – Distributor Check Valve (Part No.ECA1176)

Distributor Check Valve

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$11.99
CARQUEST premium engine management products provide the right automatic transmission speed sensor for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions. Designed to meet OE quali

Product Features:
  • Lifecycle tested to meet or exceed OE specifications
  • Direct OE replacement
  • High strength thermoplastic is resistant to shock, temperature and chemicals. Also protects internal components from moisture and contaminants.
  • Global coverage for import and/or domestic applications.
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Accel – 8Mm Super Stock Spiral Uni Bk (Part No.5040K)

8Mm Super Stock Spiral Uni Bk

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$91.99
The traditional ACCEL combination of yellow wire and red spark plug boots has been added to these SuperStock Spiral Core 5000 Series wire sets, which feature color-matched wire and spark plug boots in blue, black, and red. With only 500 ohms/ft. of resistance, more ignition energy can reach the spark plug, producing a longer-lasting, hotter spark flame kernel. The results is higher performance through improved efficiency, quicker throttle response, and reduced emissions. This 8mm wire’s double silicone construction is rated to 550 degrees F. The high-gloss wire jacket resists moisture, chemicals, and heat extremes for longer life and great looks. The fiberglass braid adds greater pull strength and terminal retention, while the stainless steel spark plug terminals provide excellent long life, electrical conductivity, and corrosion resistance. Both universal and custom-fit applications are available for early and late model cars and trucks.

Product Features:
  • 500 Ohms/ft Of Resistance
  • 550 F Rated Silicone Jacket
  • Stainless Steel Plug Terminals
  • High RFI Suppression For Street And Strip Use
  • Universal And Import Coverage
  • High-strength Fiberglass Braid Construction
  • Pre And Post HEI Vehicles
  • 8mm High Gloss Silicone Jacket
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MSD Ignition – Crank Trigger Kit; Small Block Ford (Part No.8640)

Crank Trigger Kit; Small Block Ford

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$593.99
For a long time, racers have known that one of the best things to do to an engine to improve its performance is to stabilize the ignition timing. The MSD flying magnet crank trigger system does exactly that by using magnets embedded in an aluminum wheel. The MSD flying magnet crank trigger uses four magnets secured in the aluminum trigger wheel that pass by a stationary non-magnetic pick-up to trigger the ignition. This flying magnet design produces accurate trigger signals and the non-magnetic pick-up cannot be false triggered. Each flying magnet crank trigger includes a two-piece mounting bracket for the non-magnetic pick-up that in most cases will work on either the passenger side or driver’s side of the engine (the SB Chrysler and SB Ford brackets mount on only one side). The adjustable bracket provides a wide range of timing adjustment and spacers are included. These systems will trigger MSD 6, 7, 8 and 10 series ignitions and all MSD timing accessories.

Product Features:
  • Absolutely The Most Accurate Way To Trigger The Ignition
  • The non-magnetic pickup cannot be false triggered.
  • Powerful magnets are embedded in a billet aluminum trigger wheel.
  • Incl. brackets/mounting hardware to fit a variety of engines
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Carquest Premium – Ignition Module (Part No.CBJ1076)

Ignition Module

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$56.99
CARQUEST Ignition Modules are built by an ignition systems manufacturer with expertise in the entire vehicle spark system.

Product Features:
  • CARQUEST Ignition Modules creates and refines the timing of the engine using various sensors and readings throughout the spark system in order to create an efficiently running engine.
  • CARQUEST Ignition Modules use current and voltage limiting circuitry in order to prevent the ignition coil from over voltage/current. Over voltages can allow for coils to create excessive heat which can damage to the ignition module resulting in check eng
  • CARQUEST Ignition Modules are 100% individually tested for all product functionalities including over voltage, timing and dwell.
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Accel – 8Mm Super Stock Graphite Cust (Part No.4056)

8Mm Super Stock Graphite Cust

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$72.99
ACCEL’s SuperStock 4000 series spark plug wire sets are designed to upgrade an OE ignition system for high-spark delivery levels for street driven applications. The 450 degree F rated silicone jacket is extruded over a tightly woven, rugged fiberglass braid. The braid is applied over high dielectric strength EPDM (Ethylene Propylene Diene Monomer) inner insulation for ignition wire performance that exceeds SAE specifications.

Product Features:
  • 7mm And 8mm High Gloss Silicone Jacket
  • 450 F Rated Silicone Jacket
  • Stainless Steel Plug Terminals
  • RFI Suppression For Street Driven Applications
  • Custom-fit Universal And Import Coverage
  • High-strength Fiberglass Braid Construction
  • Pre And Post HEI Vehicles
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Carquest Premium – Spark Plug Wire Set: 9 Wires, Increased performance, Designed for direct fit (Part No.35-8196)

Spark Plug Wire Set: 9 Wires, Increased performance, Designed for direct fit

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$38.99
Product Features:
  • SAEJ2031 Class E cable resist heat (428 Deg. F), cold (-104 Deg. F), electrical interference, abrasion and oil.
  • Stainless steel magnetic winding delivers maximum voltage to the spark plug for more powerful, and longer spark resulting in optimum engine performance while reducing the chance for misfire, and eliminating radio static.
  • 100% Pure silicone external insulation resists oil penetration, for lifetime protection against wire set failure.
  • EPDM inner insulation stops power-robbing voltage leaks.
  • With Magnetic-impregnated Kevlar internal conductors – durable and break resistant
  • Engineered to meet OEM tolerances using variable pitch wire winding, creating better resistance to electric magnetic interference (E.M.I resistance).
  • Excellent interference suppression and consistent performance
  • Easy lock terminals for more convenient installation.
  • Thick silicon outer jacket for excellent heat resistance. Insulating EPDM based compound inner jacket helps minimize voltage drop and enhance durability.
  • Broad coverage available for most vehicles on the road today
  • Include grease pack to ensure easy installation and removal
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Motorcraft – Original Equipment (O.E.) Switch Assembly – Ignition (Part No.SW-5011)

Original Equipment (O.E.) Switch Assembly - Ignition

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$81.99
The only parts recommended by Ford Motor Company for Ford, Lincoln and Mercury vehicles.

Product Features:
  • Direct-fit, OE replacement parts – identical to factory installed parts. Robust design helps provide long operating life and excellent performance.
  • All OE switch functions are maintained. Factory connectors help ensure a solid, positive connection. Provided factory mounting points ensure easy installation – new gaskets and attaching hardware is included, where applicable.
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Carquest Premium – Ignition Coil Connector (Part No.PTA1082)

Ignition Coil Connector

from

$18.29
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
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MSD Ignition – Distributor Gear; Steel; Ford 351C; 460 (Part No.85813)

Distributor Gear; Steel; Ford 351C; 460

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$143.99
A distributor’s performance is only as good as its drive gear. MSD ignition has put a great deal of effort into researching and testing a variety of metallurgical compositions, heat treating and coatings to provide you with a durable, accurate and strong distributor gear. The result is a special iron alloy gear that is treated to a low-friction coating process. To you this means long life, an easy break-in period and reliable performance. Features micro polished surface for smooth contact. Proprietary formulated ductile iron. Melonite QPQ coated reduces friction and initial wear. Interstitial carbide concentration improves wear resistance and running properties.

Product Features:
  • Increased outer hardened layer thickness (RC 55-60)
  • Micro Polished Surface For Smooth Contact
  • Proprietary formulated ductile iron.
  • Melonite QPQ coated reduces friction and initial wear
  • Interstitial carbide improves wear resistance/running properties
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Carquest Premium – Distributor Drive Gear (Part No.DGA1004)

Distributor Drive Gear

from

$98.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Dorman – 6 – Wire Ford Ignition Module (Gray) (Part No.85130)

6 - Wire Ford Ignition Module (Gray)

from

$23.99
This ignition harness is designed to match the fit and function of the original harness on specified applications, and is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this ignition harness is designed to match the fit and function of the original harness on specified applications
  • Ideal solution – this harness is a reliable replacement for an original harness that is missing, failed or damaged due to corrosion
  • Durable construction – this part is made from quality materials to ensure reliable performance and a long service life
  • Trustworthy quality – designed in the United States and backed by more than a century of automotive aftermarket excellence
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Carquest Premium – Ignition Switch Connector (Part No.PTA1283)

Ignition Switch Connector

from

$8.29
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
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Carquest Premium – Ignition Switch Connector (Part No.PTA1318)

Ignition Switch Connector

from

$19.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
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Accel – 8.8Mm Spiral Universal Fit (Part No.8033)

8.8Mm Spiral Universal Fit

from

$153.99
These ACCEL 8.8mm wires feature a carbon/graphite core that virtually eliminate RFI noise while providing maximum conductivity for ultimate performance in any race or street application. Double silicon insulation eliminates leakage and misfire.

Product Features:
  • 500 Ohms/ft Of Resistance
  • 550 F Rated Silicone Jacket
  • Stainless Steel Plug Terminals
  • Custom-fit Universal And Import Coverage
  • Pre And Post HEI Vehicles
  • Magnetic Suppression
  • Fiberglass/Kevlar Core
  • 500 Ohms Resistance
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MSD Ignition – Wire Set; Super Conductor; Multi-Angle Plug; HEI Cap (Part No.31189)

Wire Set; Super Conductor; Multi-Angle Plug; HEI Cap

from

$129.99
For engines with late-model type (HEI spark plug top) distributor caps. Multi-angle boots and terminals installed on one end. 90 degree distributor boots and terminals included.

Product Features:
  • Extra Long 8.5mm Wires So You Can Cut To Your Designed Length
  • Distributor Cap – Boots and Terminals Included
  • Includes Mini-Stripper-Crimper For Factory Style Crimps
  • Size Includes [8] 90 Degree Boots/Terminal Ends
  • Durable outer sleeve is a proprietary compound for resistance to high heat or abrasion
  • Stainless steel terminals feature dual crimp tabs to grip wire conductor and outer jacket separately
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Carquest Premium – Distributor T2873A: 100% New, With Cap and Rotor (Part No.T2873A)

Distributor T2873A: 100% New, With Cap and Rotor

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$87.99
Carquest Premium distributors are built to meet or exceed the original equipment (OE) specifications for each application. Our distributors are built by a manufacturer that meets IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Each distributor is supplied with the cap, rotor and any seals needed for installation. Carquest Premium distributors are 100% new and undergo extensive validation testing to ensure long-lasting ignition performance and reliability.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • 100% new unit with no core charges
  • Precision machined shafts result in high speed accuracy and help prevent bearing failures
  • Every distributor is tested to ensure reliable and long-lasting performance
  • O-rings or gaskets included where applicable
  • Precision Engineered ignition modules and plugs ensure proper performance plus precise connection.
  • Precision machined and ground shafts assure high speed accuracy and prevent bearing failures.
  • Original Equipment Equivalent high voltage ignition coils.
  • 100% New Components and fasteners eliminate premature failures.
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Carquest Premium – Distributor T2893: 100% New, With Cap and Rotor (Part No.T2893)

Distributor T2893: 100% New, With Cap and Rotor

from

$82.99
Carquest Premium distributors are built to meet or exceed the original equipment (OE) specifications for each application. Our distributors are built by a manufacturer that meets IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Each distributor is supplied with the cap, rotor and any seals needed for installation. Carquest Premium distributors are 100% new and undergo extensive validation testing to ensure long-lasting ignition performance and reliability.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • 100% new unit with no core charges
  • Precision machined shafts result in high speed accuracy and help prevent bearing failures
  • Every distributor is tested to ensure reliable and long-lasting performance
  • O-rings or gaskets included where applicable
  • Precision Engineered ignition modules and plugs ensure proper performance plus precise connection.
  • Precision machined and ground shafts assure high speed accuracy and prevent bearing failures.
  • Original Equipment Equivalent high voltage ignition coils.
  • 100% New Components and fasteners eliminate premature failures.
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Carquest Premium – Distributor Rotor (Part No.DAA1088)

Distributor Rotor

from

$6.29
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest Premium – Distributor Rotor (Part No.DAA1003)

Distributor Rotor

from

$6.29
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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MSD Ignition – Coil; Ford 4.6/5.4L 2-Valve 98-14 Single (Part No.8242)

Coil; Ford 4.6/5.4L 2-Valve 98-14 Single

from

$54.39
The improved spark energy and voltage of MSD’s blaster 2 coils, combined with reliability, have made them a favorite for performance enthusiasts. Whether firing a restored BOSS 429 or a Saturday night circle tracker, the blaster 2 has always gotten the job done. MSD is excited to offer blaster coils for late model Ford engines with coil-on-plug technology. The new blaster COPs are designed as a direct bolt-in replacement coil for many SOHC Modular Motors. The housing and installation are the same as the factory, but that’s where the similarity ends. Inside the MSD red housing, engineers spec’d better material to assemble the primary and secondary windings. There is also patented dual magnet technology to step up the output. Together, this combines a coil that produces higher voltage and spark energy. The coil-on-plug design of the blaster COPs puts the spark energy right out of the coil and across the plug gap to improve the combustion and output of the engine. The blaster 2 COPs are available individually or as a complete set of eight.

Product Features:
  • Fits 1999-2004 4.6L And 5.4L SOHC 2V
  • Improved Spark Energy And Voltage Output
  • Patented Winding Design and Materials
  • Direct Bolt-In to Factory Connectors
  • CARB approved legal for use in all states
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Carquest Premium – Ignition Coil: Meets or Exceeds OE Specifications, 1 Count (Part No.EBC1829)

Ignition Coil: Meets or Exceeds OE Specifications, 1 Count

from

$37.99
Carquest Premium ignition coils meet or exceed original equipment (OE) specifications and are developed by top OE/OES manufacturers to ensure superior performance. All of our Carquest Premium ignition coils are developed by IATF 16949 certified manufacturers for consistent durability and long-lasting performance. These ignition coils use high-quality components and will utilize optimized designs on applications where the OE ignition coil had frequent failures. We require stringent testing standards to ensure proper fit and performance for each application and stand behind our Carquest Premium ignition coils with an industry-leading warranty. Carquest Premium ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:
  • Built by IATF 16949 certified manufacturers for consistent durability
  • Coil drivers match OE for current limit, electrostatic discharge (ESD) protection and multi-spark
  • Segmented secondary bobbins to distribute high voltage and prevent shorting
  • Extensive design validation testing to ensure long-lasting reliability
  • 100% end-of-line tested to ensure proper performance
  • Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
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Carquest – Distributor Ignition Pickup (Part No.ME48)

Distributor Ignition Pickup

from

$43.99
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • Designed to OE standards for ease of installation
  • High temperature enameled wires were specified for better insulation and performance
  • With industry leading expertise in electronic ignition, when original equipment fails our products are designed to fix the inherent failure issues
  • BWD is a global manufacturer of original equipment ignition products, complete quality control is maintained through the manufacturing process from componentry to finished product
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Carquest – Distributor Ignition Pickup (Part No.ME12)

Distributor Ignition Pickup

from

$43.05
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • Designed to OE standards for ease of installation
  • High temperature enameled wires were specified for better insulation and performance
  • With industry leading expertise in electronic ignition, when original equipment fails our products are designed to fix the inherent failure issues
  • BWD is a global manufacturer of original equipment ignition products, complete quality control is maintained through the manufacturing process from componentry to finished product
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Carquest Premium – Distributor Ignition Pickup (Part No.MEC2265)

Distributor Ignition Pickup

from

$40.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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1986 Mercury Grand Marquis Ignition and Tune-Up Products

You count on your 1986 Mercury Grand Marquis to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Ignition and Tune-Up Products. With 135 Ignition and Tune-Up Products ranging in price from $2.49 to $593.99, you’re sure to find everything you need for your 1986 Mercury Grand Marquis.

Brands matter. If you want to shop a specific Ignition and Tune-Up Products brand, we stock 19 different brands like ACDelco, Autolite, and Motorcraft. 1986 Mercury Grand Marquis Ignition and Tune-Up Products start as low as $2.49!

One of the best ways to find top quality OEM or aftermarket Ignition and Tune-Up Products is by asking professionals. Short of that, you can shop with confidence thanks to our 2,491 extensive product reviews on 1986 Mercury Grand Marquis Ignition and Tune-Up Products. Some of the top-rated Ignition and Tune-Up Products products we carry are DiamondFIRE Automotive Spark Plug: More Power, Saves Gas with 4.1 stars and PT16TT Platinum TT Spark Plug with 4.6 stars.

Did we mention you can order your Ignition and Tune-Up Products from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Ignition and Tune-Up Products inventory for your 1986 Mercury Grand Marquis below to get started!

Top-Rated Ignition and Tune-Up Products Brands For Your 1986 Mercury Grand Marquis

Trusted Ignition and Tune-Up Products OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 1986 Mercury Grand Marquis running right for years to come. In our inventory you’ll find brands like ACDelco, Autolite, Motorcraft, and even more.

Popular Champion Ignition and Tune-Up Products

You’ll find popular Champion brand products across Spark Plugs. All are waiting to get your 1986 Mercury Grand Marquis back on the road. Some of the top-rated Champion products in these categories are:

Top-Rated NGK Ignition and Tune-Up Products


If NGK are what you’re looking for, our inventory holds plenty. We stock NGK brand Ignition and Tune-Up Products for your 1986 Mercury Grand Marquis, and some of our most reviewed NGK parts include:

FAQs for 1986 Mercury Grand Marquis Ignition and Tune-Up Products

What are the most purchased Ignition and Tune-Up Products for the 1986 Mercury Grand Marquis?

Out of 135 Ignition and Tune-Up Products for the 1986 Mercury Grand Marquis, the most popular in our inventory are:
Spark Plug (ASF42CF4)
from $6.79
(28)
Spark Plug (ASF42CF4)
Spark Plugs

What are the top-rated 1986 Mercury Grand Marquis Ignition and Tune-Up Products?

Top-rated Ignition and Tune-Up Products for your 1986 Mercury Grand Marquis based on customer reviews/ratings are:
DiamondFIRE Automotive Spark Plug: More Power, Saves Gas
from $7.49
(184)
DiamondFIRE Automotive Spark Plug: More Power, Saves Gas
“I used these type before.”
PT16TT Platinum TT Spark Plug
from $5.99
(90)
PT16TT Platinum TT Spark Plug
“On line”
Wire Set; Black Super Conductor; Ford 302; 351W; HEI
from $147.99
(53)
Wire Set; Black Super Conductor; Ford 302; 351W; HEI
“Easy to change gasket ring and filter. Makes changing oil a whole lot easier”