1991 GMC P-Series Spark Plugs

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    • (0 reviews)
      # mpn1775396
      GMC P-Series 4.3L / 5.7L / 7.4L 1991, Iridium IX™ Spark Plug by NGK®. Designed for performance enthusiasts who want extreme ignitability, improved throttle response and superior anti-fouling, these spark plugs are a great option for...
      Designed for outstanding acceleration, high fuel efficiency, and durabilityEnsure a consistently stable spark
      $6.44
    • (0 reviews)
      # mpn4075468840
      GMC P-Series 4.3L / 5.7L / 7.4L 1991, Iridium Power™ Spark Plug by Denso®. Iridium Ultimate Endurance and Power - Performance Upgrade with World's Smallest Center Electrode (0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology) &...
      0.4 mm iridium center electrode, the slimmest in the industryPatented self-cleaning insulator/electrode design
      $5.54
    • (0 reviews)
      # mpn1775376
      GMC P-Series 4.3L / 5.7L / 7.4L 1991, G-Power™ Platinum Spark Plug by NGK®. Platinum spark plugs by NGK are designed to improve fuel efficiency, lower emissions, and provide quicker starts while remaining durable under high heat. With...
      Designed for faster starts and quicker accelerationBetter fuel economy and lower emissions compared to a traditional plug
      $2.65
    • (0 reviews)
      # mpn1775366
      GMC P-Series 4.3L / 5.7L / 7.4L 1991, V-Power™ Nickel Spark Plug by NGK®. NGK spark plugs offer higher performance compared to standard plugs. NGK spark plugs feature a V-groove center electrode and concave ground electrode that...
      Lower ignition system voltage requirementsGreater ignitability and performance over conventional spark plugs
      $1.61
    • (0 reviews)
      # mpn4075468835
      GMC P-Series 4.3L / 5.7L / 7.4L 1991, Iridium TT™ Spark Plug by Denso®. Ultimate Endurance and Power. 0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology. Is your vehicle hard to start? Does it miss under load and idle rough? Is your...
      Designed to replace your factory spark plugsManufactured to stringent quality standards
      $6.19
    • (0 reviews)
      # mpn4075472549
      GMC P-Series 4.3L / 5.7L / 7.4L 1991, Original U-Groove Nickel Spark Plug by Denso®. OE Recommended Resistor Plug with Patented U-Groove Design. Denso's patented U-Groove spark plug enables complete combustion by allowing the spark to...
      100 percent pre-fired to ensure reliable operationCopper core center electrode for superior thermal conductivity
      $1.55
    • (0 reviews)
      # mpn4075468329
      GMC P-Series 4.3L / 5.7L / 7.4L 1991, Platinum TT™ Spark Plug by Denso®. Platinum TT - Twin-Tip Technology Design with Platinum Center Electrode and Titanium Enhanced Ground Strap. The Platinum TT™ concept originated from Denso's...
      1.1 mm platinum center electrodeTitanium-enhanced alloy ground electrode
      $2.58
    • (0 reviews)
      # 708112587
      GMC P-Series 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 conventional...
      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
      $5.43
    • (1 review)
      # mpn4486063135
      GMC P-Series 4.3L / 5.7L / 7.4L 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...
      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
      $3.22
    • (0 reviews)
      # mpn4495966858
      GMC P-Series 4.3L / 5.7L / 7.4L 1991, Spark Plug Non-Foulers by Dorman®. The Spark Plug Non-Foulers prevent spark plug damage, repairing spark plug fouling in engines running too rich or oil issues to improve engine performance. Dorman...
      Easy to installNon-Foulers help protect spark plugs from damage
      $2.55
    • (0 reviews)
      # mpn1177915433
      GMC P-Series 4.3L / 5.7L / 7.4L 1991, Performance Spark Plug by Nitrode®. Hotter Plug, higher heat range. The Nitrode™ spark plugs are positioned to be the world's "greenest" most environmentally friendly spark plugs on the planet....
      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)
      # 803913637
      GMC P-Series 1991, Copper Spark Plug with Resistor by Autolite®. OE Style. These spark plugs by Autolite are specially designed and manufactured to ensure quick starts, dependable performance, and smooth acceleration. The products are...
      Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal (100% leak proof)Multi-rib insulator reduces danger of "flash-over"
      $2.44
    • (0 reviews)
      # mpn3806712399
      GMC P-Series 4.3L / 5.7L / 7.4L 1991, Spark Plug 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
      $6.63


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    1991 GMC P-Series Spark Plugs Reviews

    Average rating:  4.5  4.5 - 3 reviews
    4 of 5
    4 ****
    The product work great and way easy to install. Although nothing is ever easy but this tool made the project a lot easier.
    SPosted by Shawn (Monroeville, NJ) / December 16, 2016
    Was this review helpful for you? Yes
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