1991 Mercury Cougar Performance Ignition Systems

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    • (4 reviews)
      # 803922178
      Mercury Cougar 1991, PlasmaCore™ Inconel Electrode Pulse Nickel Spark Plugs by Pulstar®. With Resistor. Inconel-electrode Pulse Plugs. Designed specifically for most popular vehicles, PlasmaCore™ Inconel Electrode Pulse Plug...
      Increased horsepowerBetter torque
      $14.95 - $119.60
    • (0 reviews)
      # 39119318
      Mercury Cougar 1991 Spark Plug Wire Set by Karlyn STI®. Get these top-notch spark plug wires to achieve maximum performance out of your ignition system. They are designed with precision and functionality in mind to withstand high heat...
      Spiral coreStainless steel magnetic conductive winding
      $29.14 - $30.88
    • (0 reviews)
      # mpn2238766622
      Mercury Cougar LS / XR-7 1991, Super Coil by Accel®. Accel Super Coils feature advanced bobbin technology, highly specialized silicone magnetic steel cores, along with optimized winding, resistance and turns ratios to deliver 10-15...
      10-15% More EnergyDirect Plug In Replacement Direct OE Fit
      $46.95
    • (0 reviews)
      # mpn2268061
      Mercury Cougar LS / XR-7 5.0L 1991 Spark Plug Wire Set by Accel®. With Male Tower Distributor Cap. These Accel 8.8mm wires feature a carbon/graphite core that virtually eliminate RFI noise while providing maximum conductivity for...
      500 Ohms/ft. Of Resistance550 F Rated Silicone Jacket
      $88.70
    • (1 review)
      # 803908427
      Mercury Cougar 1991, Performance Nickel Spark Plug by Nitrode®. The Nitrode™ spark plugs are positioned to be the world's "greenest" most environmentally friendly spark plugs on the planet. Reducing fuel consumption and emissions...
      The Nitrode™ is made with a proprietary ceramic exclusively used for this spark plugThis unique ceramic is over 10% harder than any ceramic known today
      $8.09
    • (0 reviews)
      # 906286010
      Mercury Cougar 1991 Super Conductor Spark Plug Wire Set by MSD®. Designed utilizing the latest technology, this product by MSD features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $93.17 - $98.54
    • (0 reviews)
      # mpn4494108945
      Mercury Cougar 5.0L With Ford Small Block Engine 1991, HEI Distributor by Speed FX®. With Ignition Control Module, Magnetic Trigger, Vacuum Advance, Chromoly Steel Gear, Polished Billet Aluminum Shaft, With HEI/Male Posts. Designed with...
      Provides effective power supply to each spark plugDesigned to strict quality standards
      $98.91
    • (0 reviews)
      # 803917385
      Mercury Cougar 5.0L 1991, U-Groove™ High Performance Copper Spark Plugs by Accel®. With Resistor. Accel HP Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark...
      The Copper core is a better conductor than Iridium or Platinum plugsCopper dissipates heat much better than other materials
      $3.38 - $26.25
    • (0 reviews)
      # 826608376
      Mercury Cougar 5.0L 1991, Flame-Thrower™ Automotive Billet Distributor by PerTronix®. Plug n' Play billet distributors are designed for maximum ignition performance at a price you can afford. The distributors are available with...
      Limited 1 year mechanicalDigital performance solutions give you more power and more features in a smaller package
      $287.93 - $307.00
    • (0 reviews)
      # 904805417
      Mercury Cougar 3.8L 1991, TFI Ignition Coil by TSP®. TSP's Ford TFI (Thick Film Ignition) ignition coils are the top coils on the market today, featuring magnetic steel cores specially designed to deliver up to 15% more spark than OEM....
      Designed for ultra high efficiencyProvides better performance
      $22.87
    • (0 reviews)
      # mpn358582808
      Mercury Cougar 5.0L 1991 Blue Max™ Wire Set by Moroso®. With this quality part backed by a great price, you can enjoy your vehicle so much more than you thought was possible. This Moroso part is specifically engineered to make your...
      Designed to deliver premium qualityRight for your vehicle and lifestyle
      $86.30
    • (0 reviews)
      # mpn4494108611
      Mercury Cougar LS / XR-7 5.0L 1991, Pro-Billet™ Distributor by MSD®. MSD engineers fit all of their high performance distributor experience into a special compact housing designed to be less obtrusive for Ford engines. The diameter of...
      Billet housing is 5/8” smaller in diameter than stock Ford distributorsMust be used with an MSD Ignition Control
      $301.95
    • (0 reviews)
      # 960786752
      Mercury Cougar 1991 Street Thunder™ Ignition Wire Set by Taylor Cable®. Get great performance at an extremely affordable price with Taylor’s Street Thunder ignition wires. These 8mm wires deliver all of the performance in your...
      Low-resistance Kevlar helically spiral wound core conductor500 ohms resistance for EMI and RFI suppression
      $39.45 - $43.87
    • (0 reviews)
      # 803889725
      Mercury Cougar 5.0L 1991, U-Groove™ Copper Spark Plugs by Accel®. Designed utilizing the latest technology, this product by Accel features premium quality and will perform better than advertised. Perfect for your vehicle and...
      U-Groove designed for spark deliveryCopper core utilized for maximum spark
      $20.53 - $32.43
    • (0 reviews)
      # mpn2270633
      Mercury Cougar 3.8L 1991, U-Groove™ Platinum Shorty Spark Plug by Accel®. With Resistor. Designed utilizing the latest technology, this product by Accel features premium quality and will perform better than advertised. Perfect for...
      Header-BoxU-Groove Ground Electrode
      $15.12
    • (0 reviews)
      # mpn4498086871
      Mercury Cougar 3.8L 1991, Iridium Yttrium Performance Spark Plug by Brisk®. Iridium Yttrium Performance Spark Plug are the best solution for high performance and racing engines. Iridium Yttrium Spark Plugs provide many unique and...
      Iridium is 6X harder & 8X stronger than platinumLong lasting OEM performance replacement
      $10.99
    • (0 reviews)
      # mpn4498087311
      Mercury Cougar 3.8L 1991, Premium EVO Nickel Spark Plug by Brisk®. Unique Spark Plug Produced Patented Laser Technology Unique igniter auxiliary electrode at the tip of the insulator formed using the patented technology of laser...
      Perfect ignition of fuel mixture in engine cylindersUnrestricted flame throughout combustion chamber
      $14.99
    • (0 reviews)
      # 876476752
      Mercury Cougar 1991, Premium Racing LGS Spark Plug by Brisk®. Brisk Premium LGS spark plug has been developed after two-year cooperation with Lamborghini Morori Marini. Brisk Premium LGS spark plug utilizes extremely long glide-spark...
      High-Potential Semi-Surface discharge equals more powerDischarge at the point of richest mixture in 360° perimeter
      $13.99
    • (0 reviews)
      # mpn4498087330
      Mercury Cougar 3.8L 1991, Yttrium Performance YTE Spark Plug by Brisk®. Brisk 3 Electrode spark plugs are an ideal choice for daily driven vehicles where slightly better fuel economy and gas mileage is desired, as well as for...
      Long life span, multiple points of dischargeNo indexing required
      $7.99
    • (0 reviews)
      # mpn2268034
      Mercury Cougar LS / XR-7 5.0L 1991 300+™ Spark Plug Race Wire Set by Accel®. These Accel 300+ wire sets are custom tailored for race engines and their builders. The oversize 8.8mm wire is rated for 600 degrees F and 60kV. Resists...
      150 Ohms/ft. Of Resistance600 F Rated Silicone Jacket
      $109.95
    • (0 reviews)
      # 906131928
      Mercury Cougar 1991 Armor Shield Spark Plug Wire Set by Accel®. Accel Armor Shield wires feature a metallic braided wire that delivers maximum spark energy while providing a Pro Street look. Armor Shield Wire sets enhance the appearance...
      8mm, 450°F-ratedPro-street applications
      $86.54 - $89.79
    • (0 reviews)
      # 960683743
      Mercury Cougar 1991 Endurance Plus™ Wire Set by Accel®. Endurance Plus quality ignition wire sets are ready to install for most popular engine applications. Get these top-notch spark plug wires to achieve maximum performance out of...
      Quality retail aftermarket wire setsMaximum voltage and starting power
      $19.18 - $30.02
    • (0 reviews)
      # 819589988
      Mercury Cougar 1991 Prestolite ProConnect™ Spark Plug Wire Set by Accel®. ProConnect ignition wire sets meet or exceed OE/OES specifications, performance and quality. These cables match the original color and are designed to provide...
      Carbon impregnated fiberglass coreFiberglass braid for added strength
      $40.75 - $42.89
    • (0 reviews)
      # 89593403
      Mercury Cougar 1991 Super Stock™ Spark Plug Wire Set by Accel®. These Accel Super Stock wire sets are a true performance upgrade replacement for OE types. Efficient delivery of spark energy for a good price. Silicone boots with...
      7mm and 8mm, 550°F-ratedStreet-driven applications
      +1
      $41.09 - $60.56
    • (0 reviews)
      # 819588978
      Mercury Cougar LS / XR-7 5.0L 1991 Street-Fire™ Spark Plug Wire Set by MSD®. Designed utilizing the latest technology, this product by MSD features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $41.74 - $48.17
    • (0 reviews)
      # mpn2120222
      Mercury Cougar 3.8L 1991 High Energy™ Ignition Wire Set by Taylor Cable®. These wires are a top choice for either street or race applications. Each wire is cut to length and terminated with Taylor’s low-profile silicone Proboot with...
      Available For Street Or Track ApplicationsHigh Temperature and Oil Resistant Wire Insulation
      $32.30
    • (0 reviews)
      # 906227124
      Mercury Cougar 3.8L 1991 Spiro-Pro™ Ignition Wire Set by Taylor Cable®. These plug wires are the top choice of racers and street enthusiasts for their high performance at an affordable price. With two layers of 100% silicone jacketing...
      Available For Street Or Track ApplicationsSpiro-Wound With Stainless Steel Wire
      $53.33
    • (0 reviews)
      # 87806147
      Mercury Cougar 3.8L 1991 ThunderVolt™ Performance Performance Ignition Wire Set by Taylor Cable®. Gain horsepower and torque with Taylor’s Dyno-proven ThunderVolt racing plug wire sets. Low resistance for healthy spark and RFI/EMI...
      Exclusive copper/nickel alloy bonded by a conductive acrylic coverFerrite spiral-wound core provides low resistance for optimum RFI and RMI suppression
      +2
      $69.94
    • (0 reviews)
      # 960867703
      Mercury Cougar 5.0L With Ford Small Block Engine 1991 8.5 Series 50 Race™ Spark Plug Wire Set by AFIS®. Developed for high performance street cars and racing cars, AFIS has introduced a comprehensive new range of spiral-core ignition...
      Superior jackets resist dielectric failureBoth reactive layer and inductive windings can transmit current without interference
      $79.95
    • (0 reviews)
      # 904802256
      Mercury Cougar 3.8L 1991, EDIS Ignition Coil by TSP®. TSP's EDIS (Electronic Distributor-less Ignition System) ignition coils are the top coils on the market today, designed to deliver up to 15% more spark than OEM. They use a high...
      Designed for ultra high efficiencyProvides better performance
      $46.83
    • (0 reviews)
      # mpn1593900738
      Mercury Cougar 5.0L With Ford Small Block Engine 1991, Vertex Distributor by Taylor Cable®. Ready to Run. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary...
      Housing Is Potted w/ A Premium Grade Epoxy EncasePrimary And Secondary Winding
      $355.15
    • (0 reviews)
      # mpn1589831592
      Mercury Cougar 5.0L With Ford Small Block Engine 1991, Pro Race™ Circle Track Distributor by Fast®. When it comes to high end circle track racing where engines demand the most accuratetiming and reliable trigger signals, FAST™ Pro...
      The most accurate and advanced distributor for racingApproved for use in NASCAR competition
      $766.53
    • (0 reviews)
      # mpn1753047443
      Mercury Cougar 5.0L With Ford Small Block Engine 1991, Distributor by Professional Products®. Designed with expert craftsmanship this first-rate distributor provides effective power supply to each individual spark plug. Made from...
      Knob Provides Precise Timing SettingEasy installation
      $122.35
    • (0 reviews)
      # mpn1753047444
      Mercury Cougar 5.0L With Ford Small Block Engine 1991, Powerfire II™ Distributor by Professional Products®. Designed with expert craftsmanship this first-rate distributor provides effective power supply to each individual spark plug....
      Knob Provides Precise Timing SettingEasy installation
      $122.35
    • (0 reviews)
      # mpn474701987
      Mercury Cougar 5.0L With Ford Small Block Engine 1991, Distributor by Big End Performance®. Provides reliable spark throughout the rpm range, so they’ll deliver the performance you need. This affordable distributor has many features...
      High quality at an affordable priceExpertly made from premium materials
      $234.08
    • (0 reviews)
      # 898414473
      Mercury Cougar 5.0L With Ford Small Block Engine 1991, Small Cap for Small Place Distributor by Racing Power Company®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a...
      Small Cap Design for better fitRequires an External Coil
      $82.93 - $102.02
    • (0 reviews)
      # mpn4268629055
      Mercury Cougar 3.8L With Motorcraft Distributor 1991, TFI Ford Module by PerTronix®. Performance ignition modules are direct replacements for popular GM and Ford electronic distributors. These modules provide enhanced high RPM...
      Thick film technology on alumina ceramic substrates removes heat for greater accuracy and improved reliabilityLaser trimming gives precise peak current control for increased energy output
      $67.43
    • (0 reviews)
      # mpn1589832414
      Mercury Cougar 5.0L With Ford Small Block Engine 1991, Hi-6RC Ignition Kit 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....
      High quality at an affordable priceExpertly made from premium materials
      $686.10
    • (0 reviews)
      # 826444417
      Mercury Cougar 1991, Front Distributor Cap and Rotor Kit by Accel®. Accel cap and rotor kits offer superior protection from "arc-thru" and crossfire. Features 60k V-rated alkyd compound, stress-relieved at molding to ensure stability....
      Accel's precision-ground, highly polished compression and injection molding equipment for superior qualityHigh performance 60kV-rated tan alkyd molding compound (mineral filled polyester for late model Ford and GM parts) for superior protection from "arc-thru" and crossfire
      $31.35
    • (0 reviews)
      # 905598092
      Mercury Cougar 1991, Front Distributor Control Module by Accel®. This high performance ignition module provides your plugs with more spark over the stock module. The solid state electronics provide high coil out put and superior...
      Fits Most Stock And Modified DistributorsDwell Control Circuit
      $60.56 - $62.73
    • (0 reviews)
      # mpn2111566
      Mercury Cougar 3.8L 1991, Distributor Cap by Taylor Cable®. Periodic replacement of your distributor cap and rotor will keep your car running at peak efficiency. They should both be replaced at the same time.
      Made from alkyd moldingSuperior protection from cross firing and arcing
      $19.42
    • (0 reviews)
      # mpn2112199
      Mercury Cougar 3.8L 1991, Distributor Cap and Rotor by Taylor Cable®. Periodic replacement of your distributor cap and rotor will keep your car running at peak efficiency. Here’s a matched set of distributor cap and rotor. They should...
      Made from alkyd moldingSuperior protection from cross-firing and arcing
      $16.96
    • (0 reviews)
      # mpn2112216
      Mercury Cougar 3.8L 1991, Distributor Rotor by Taylor Cable®. Periodic replacement of your distributor rotor will keep your car running at peak efficiency. Deteriorated distributor rotors can cause misfires by allowing the spark to leak...
      Made from alkyd moldingSuperior protection from cross firing and arcing
      $11.16
    • (0 reviews)
      # mpn2869249648
      Mercury Cougar 5.0L 1991, Rotor by Hypertech®. These Hypertech rotor are capable of increasing the output voltage of your coil, so you can gain more power and fuel economy. The Hypertech rotor is designed to give you a steady,...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $7.76
    • (0 reviews)
      # 826597248
      Mercury Cougar 5.0L 1991, Distributor Gear by PRW®. PRW bronze distributor gears are designed to minimize wear to your high performance camshaft. These distributor gears are crafted from superior quality bronze aluminum and are...
      Easily replacedRoll pin included
      $35.55 - $39.15
    • (0 reviews)
      # 826486049
      Mercury Cougar 5.0L 1991, Distributor Drive Gear by Vertex Magnetos®. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary Quality. Designed utilizing the latest...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $56.01 - $87.55
    • (0 reviews)
      # mpn358502497
      Mercury Cougar 5.0L With Ford Small Block Engine 1991, Ignition Crank Trigger Kit by Fast®. Engineers at FAST™ turned to the OEMs to see what they trust in the way of rpm-measuring crank triggers for their 400 and 500 horsepower daily...
      Includes all required mounting hardware; plug and play with most aftermarket EFI systemsUltra durable CNC-machined aluminum bracket with clearly labeled precision timing marks
      $268.28
    • (0 reviews)
      # mpn4486063142
      Mercury Cougar 5.0L 1991, Professional™ Double Platinum Spark Plug by ACDelco®. Designed for today’s most popular autos, as well as several marine applications, ACDelco’s Rapidfire® Platinum Spark Plugs fit engines using...
      Ribless insulator that improves the plug-to-boot sealTapered center wire electrode with a platinum pad reduces the firing diameter and helps improve the firing efficiency by concentrating and directing energy needed to fire the plug with less voltage
      $7.02
    • (0 reviews)
      # mpn4486063127
      Mercury Cougar 5.0L 1991, Professional™ Rapidfire Platinum Spark Plug by ACDelco®. Designed for today’s most popular autos, as well as several marine applications, ACDelco’s Rapidfire® Platinum Spark Plugs fit engines using...
      Ribless insulator that improves the plug-to-boot sealTapered center wire electrode with a platinum pad reduces the firing diameter and helps improve the firing efficiency by concentrating and directing energy needed to fire the plug with less voltage
      $4.16
    • (0 reviews)
      # mpn2341105
      Mercury Cougar 5.0L 1991, Copper Spark Plug by Champion®. Designed and manufactured to meet or exceed OE standards and specifications, these spark plugs by Champion ensure fast engine start-up and smooth acceleration. The products are...
      Copper Plus - Dependable Performance.Copper core center electrode allows for accurate control of heat range for longer life
      $1.50
    • (0 reviews)
      # mpn2341129
      Mercury Cougar 5.0L 1991, Double Platinum Spark Plug by Champion®. With platinum fine wire welded onto the nickel alloy center electrode and a platinum pad welded to the ground electrode, these products provide long-lasting service life...
      Double Platinum Power - Premium Spark Plug. More Powerful Performance.Platinum center and ground electrode for greater wear resistance
      $4.66
    • (0 reviews)
      # mpn2341146
      Mercury Cougar 3.8L 1991, Iridium Spark Plug by Champion®. As the leaders in precious metal technologies as well as F.I.S.S resistor technology and MLR™ technology, Champion spark plugs provide enhanced ignition and longer life.
      Champion Iridium - Maximum Performance. Premium Spark PlugIridium center electrode delivers maximum life
      $5.12
    • (0 reviews)
      # 524038701
      Mercury Cougar 1991, Platinum Power™ Spark Plug by Champion®. With a platinum tip welded to a nickel alloy center electrode, these spark plugs provide superior wear characteristics. Combining a thin-wire center electrode with a...
      Platinum center electrode reduces gap growth, lowering the voltage requirements, in turn reducing the chance of misfireThin center electrode and v-trimmed ground electrode enhance ignitability and reduce quenching
      $2.10 - $4.66
    • (0 reviews)
      # mpn1435241
      Mercury Cougar 1991, Finewire Platinum Spark Plug by Motorcraft®. Is your vehicle hard to start? Does it miss under load and idle rough? Is your gas mileage not what it used to be? Your ignition system may need repair, but before you...
      Direct OEM replacementRecommended by Ford Motor Company
      $3.50
    • (0 reviews)
      # mpn1404092
      Mercury Cougar 1991, Platinum Spark Plug by Motorcraft®. Is your vehicle hard to start? Does it miss under load and idle rough? Is your gas mileage not what it used to be? Your ignition system may need repair, but before you waste your...
      Direct OEM replacementRecommended by Ford Motor Company
      $2.45
    • (0 reviews)
      # 61343960
      Mercury Cougar 1991, Pro Series™ Spark Plug Wire Set by Standard®. Designed utilizing the latest technology, this product by Standard features premium quality and will perform better than advertised. Perfect for your vehicle and...
      The design of this set strictly follows the original specifications set by OEManufactured using OE-Style spark plug and distributor boots
      $14.77 - $15.77
    • (0 reviews)
      # 207456263
      Mercury Cougar 1991, Spark Plug Wire Set by Standard®. Designed utilizing the latest technology, this product by Standard features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $13.37 - $30.67
    • (0 reviews)
      # mpn4255131133
      Mercury Cougar 1991, Ignition Coil by Delphi®. Delphi OE technology ignition products are validated to match the vehicles system. OE quality replacement parts for the right fit, form and function. Designed utilizing the latest...
      Designed and endurance tested to resist the common stresses that cause failureEfficient coil design that ensures the power in the coil has a streamlined path to the spark plug
      $28.16
    • (0 reviews)
      # mpn4253344640
      Mercury Cougar 1991, Ignition Coil by Motorcraft®. Motorcraft is the way to restore the performance of your vehicle. Designed specifically for your vehicle, Motorcraft products meet stringent Ford Motor Company standards and feature OEM...
      Direct OEM replacementMeets strict Ford Motor Company standards
      $29.59
    • (0 reviews)
      # mpn4256498912
      Mercury Cougar 1991, Ignition Coil by Prenco®. Is your vehicle hard to start? Does it miss under load and idle rough? Is your gas mileage not what it used to be? Your ignition system may need repair, but before you waste your time and...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $38.09




    Guides & Articles

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