1978 Mercury Grand Marquis Spark Plug Wires, Ignition Wires & Components

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    • (0 reviews)
      # mpn1404105
      Mercury Grand Marquis 5.8L 1978, Spark Plug Wire Set 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 replacementMeets strict Ford Motor Company standards
      $25.09
    • (0 reviews)
      # 207456669
      Mercury Grand Marquis 1978, 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,...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $13.48 - $29.49
    • (0 reviews)
      # 99006968
      Mercury Grand Marquis 1978, 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...
      The design of this set strictly follows the original specifications set by OEManufactured using OE-Style spark plug and distributor boots
      $14.63 - $16.10
    • (0 reviews)
      # 703345476
      Mercury Grand Marquis 1978, Spark Plug Wire Set by Denso®. Complete Ignition Wire Set. Designed with precision and functionality in mind this product ensures ultimate durability and provides the highest level of quality. This product is...
      Improved coil efficiency reduces the need to generate high voltageDriving circuit is integrated into top of coil
      $25.50 - $26.49
    • (0 reviews)
      # 906237163
      Mercury Grand Marquis 1978 409 Pro Race™ Spark Plug Wire Set by Taylor Cable®. Taylor’s biggest ignition wire is available in red, in custom sets designed to fit muscle cars, performance cars, sports, compacts and truck...
      Double spring locking terminal100% pure silicone 10.4 mm outer jacket
      $129.17
    • (0 reviews)
      # mpn2126690
      Mercury Grand Marquis 5.8L / 6.6L 1978 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...
      Kevlar Helically Spiral Wound CoreDurable Silicone Double Layer Jacket
      $40.47
    • (0 reviews)
      # mpn1593896529
      Mercury Grand Marquis 5.8L With Small Block Engine With HEI Distributor 1978 Street Thunder™ Ignition Wire Set Over Valve Cover by Taylor Cable®. This products is an OEM and Performance company that was built on its founding heritage...
      Kevlar Helically Spiral Wound CoreDurable Silicone Double Layer Jacket
      $43.87
    • (0 reviews)
      # 87806455
      Mercury Grand Marquis 1978 ThunderVolt™ Ignition Wire Set (3-ESD) by Taylor Cable®. DYNO-Tested and Track Proven to provide 5 HP and 7 lbs. torque more than the competition, ThunderVolt 50 ignition wires provide the ultimate in spark...
      10.4mm diameter40 Ohms/ft.
      $145.14
    • (0 reviews)
      # 906151805
      Mercury Grand Marquis 5.8L / 6.6L 1978 ThunderVolt™ Performance 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
      $69.23 - $71.42
    • (0 reviews)
      # 906223959
      Mercury Grand Marquis 1978 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)
      # 906278042
      Mercury Grand Marquis 1978 Super Conductor 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 is...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $97.47 - $105.95
    • (0 reviews)
      # mpn2272653
      Mercury Grand Marquis 5.8L 1978 300+™ Spark Plug Race Wire Set with Male Tower Or Point Style Distributor Cap by Accel®. These Accel 300+ wire sets are custom tailored for race engines and their builders. The oversize 8.8mm wire is...
      150 Ohms/ft. Of Resistance600 F Rated Silicone Jacket
      $105.95
    • (0 reviews)
      # mpn1588771648
      Mercury Grand Marquis 5.8L / 7.5L 1978 Armor Shield Spark Plug Wire Set with Male Tower Distributor Cap by Accel®. Accel Armor Shield wires feature a metallic braided wire that delivers maximum spark energy while providing a Pro Street...
      8mm, 450°F-ratedPro-street applications
      $86.54
    • (0 reviews)
      # 819585953
      Mercury Grand Marquis 1978 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...
      Carbon impregnated fiberglass coreFiberglass braid for added strength
      $39.68 - $45.03
    • (0 reviews)
      # mpn2268061
      Mercury Grand Marquis 5.8L / 7.5L 1978 Spark Plug Wire Set with Male Tower Distributor Cap by Accel®. 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
    • (0 reviews)
      # 371796152
      Mercury Grand Marquis 1978 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)
      # mpn4480780852
      Mercury Grand Marquis 5.8L / 7.5L 1978, Professional™ Spark Plug Wire Set by ACDelco®. Built to match the Original Equipment in length and fit, ACDelco Professional Ignition Wire Sets also offer a performance advantage over many...
      Wire conductor, wire length and diameter help provide maximum spark delivery and protectionSpark plug distributor boot shape and materials provide proper fit, installation and water-tight seal
      $30.05
    • (0 reviews)
      # 199918324
      Mercury Grand Marquis 1978 409 Pro Race™ Wire Set by Taylor Cable®. Taylor’s biggest ignition wire is available in red or blue, in custom sets designed to fit muscle cars, performance cars, sports, compacts and truck applications....
      Available For Street Or Track ApplicationsContinuous Heat Protection Up To 600 deg. F
      $129.17
    • (0 reviews)
      # 906217997
      Mercury Grand Marquis 5.8L / 6.6L 1978 Spiro-Pro™ 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...
      Available For Street Or Track ApplicationsSpiro-Wound With Stainless Steel Wire
      $73.62
    • (0 reviews)
      # 819697921
      Mercury Grand Marquis 1978 MPG+™ Spark Plug Wires by Granatelli Motor Sports®. Granatelli O ohm wires are patent protected by United States Patent number 7,185,622. This patent covers our unique method of producing ignition wires of...
      Increases mileage 15%Direct OEM replacement, exceeds OEM specifications, OBD-II computer safe
      $129.20


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    1978 Mercury Grand Marquis Spark Plug Wires Reviews

    Average rating:  4.5  4.5 - 4 reviews
    4.8 of 5
    Great
    Works great. One of the best and most helpful things I’ve ever bought.
    PPosted by Preston (Westminster, CO) / December 13, 2017
    2002 Toyota 4Runner
    Was this review helpful for you? Yes
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