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1978 GMC G25 Spark Plug 8 Cyl 5.7L NGK

4.5 on 40 ratings
  • Features:
    • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
    • COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
    • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
    • NGK's OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
    • RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
    • ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode with V-groove provides consistent performance
  • NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Engineered specifically for OE applications, the special V-cut nickel alloy center electrode and concave ground electrode of NGK's V-Power spark plug increases ignitability providing quicker starts and smoother idle. NGK's legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.
  • Suggested Purchase Quantity: 8
    • Most jobs typically require 8 of this item.
This Part Fits the Following OEM/Substitute Numbers:
108, 1835738T, 35, 3623, 3625, 3627, 683, 684, 685, 687, 7240, 7573, 7584, 7973, ARF2-6, ARF3-6, ARF4-6, ARF41C15, ARF41CU15, ARF8-6, HR10ACY, HR10AY, HR8ACY, HR8AY, HR9ACY, HR9ACY+, HR9AY, R42TX, R43T6, R43TX, R44TX, R45TX, R46TX, RV12C6, RV8C6

Additional Fitment Information:
Vehicle Block CC Engine CID
1978 GMC G25 V - 8 Cyl 5.7L 350
Brand NGK
Part # 7240
Condition New
NGK

G25 NGK Spark Plug 7240 1978 GMC
  • NGK V-Power Spark Plug
  • California Emissions Gap 0.060" OE Equivalent Design
  • V-Power Spark Plug
    • NGK is a world leader in original equipment and aftermarket spark plugs and oxygen sensors. When it comes to spark plugs, NGK is the World Leader. Makers of spark plugs for virtually every automotive, motorcycle, marine and small engine application, NGK dominates.
    NGK Spark Plugs: When you require the best, count on The World Leader in spark plug technology NGK Spark Plugs. We offer the highest quality products for virtually every vehicle application. Count on NGK Spark Plugs to deliver the finest quality products and customer service. NTK Oxygen Sensors is the world's largest supplier and manufacturer of original equipment oxygen sensors. NTK Oxygen Sensors brings our expertise and innovation to the aftermarket providing oxygen sensors with superior fit, form and function. When you require the best, count on NTK Oxygen Sensors to deliver. Each NTK Oxygen Sensor is extensively tested during manufacture to guarantee quality and reliability, are supplied with a factory-fitted OEM Connector for easy installation, and is precision manufactured with a sensing element incorporating NTK's premier technical ceramics.

    General

    Center Electrode Design
    Standard
    Center Electrode Insulator Tip Projection
    • 0.04
    • 1.0
    Washer Included
    No
    Electrical Terminal Type
    Non-removable Nut
    Grade Type
    Standard Replacement
    Service Number
    Yr55
    Ground Electrode Tip Material
    Nickel
    Short Style Spark Plug
    No
    Skirt
    No
    Center Electrode Core Material
    Copper
    Part Number
    Yr55
    Resistor Type
    Yes
    Stock Number
    7240
    Ground Electrode Tip Design
    Standard
    Pre-Gap Size
    • .060
    • 1.5
    Ground Electrode Core Material
    Nickel
    Material Grade
    Nickel/copper
    Center Electrode Projection
    Non-projected
    Seat Type
    Tapered
    Ground Electrode Quantity
    1
    Insulator Material
    Ceramic
    Hex Size
    5/8" (16mm)
    Reach
    • 0.460
    • 11.2
    Center Electrode Tip Material
    Nickel
    Skirt Length
    0.0
    Manufacturer Heat Range
    5
    Ground Configuration
    J-gap
    Resistance
    5000.0
    Insulator Height
    • 2.19
    • 55.5
    Thread Diameter
    • 0.551
    • 14.0
    Information on technical characteristics, the delivery set, the country of manufacture and the appearance of the goods is for reference only and is based on the latest information available at the time of publication.

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