1975 GMC G25 Spark Plug Parts

Choose your Engine for your 1975 GMC G25


Showing 1 - 10 of 18 products
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Autolite
  • Autolite 145 Copper Resistor Spark Plug
  • OE Style; .035 Gap
  • Copper Resistor Spark Plug
  • Product Attributes:
    • Center Electrode Design: Standard / Regular
    • Seat Type: Tapered
    • Electrical Terminal Type: Stud
    • Ground Electrode Tip Material: Nickel
    • Center Electrode Core Material: Copper
    • Resistor Type: Yes
    • Insulator Material: Ceramic
    • Hex Size: 5/8"
    • Reach:
      • 0.431
      • 11.0
    • Center Electrode Tip Material: Nickel
    • Ground Electrode Tip Design: Tapered
    • Insulator Type: Short
    • Pre-Gap Size:
      • 0.040
      • 1.00
    • Resistance: 4000
    • Ground Electrode Core Material: Nickel
  • Autolite® Copper Spark Plugs are manufactured to deliver quick starts, improved fuel economy and smooth acceleration. Autolite® spark plugs are the best alternative to OE spark plugs, offering OE form, fit and function for all makes and models, both foreign and domestic, at a value price. Autolite provides the automotive aftermarket and Original Equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs.
  • Suggested Purchase Quantity: 8
    • Most jobs typically require 8 of this item.
  • This item must be purchased in quantities of 4

This Part Fits the Following OEM/Substitute Numbers:
121, 44T, 5029, 711, ARF4

Additional Fitment Information:
Vehicle Block CC Engine CID
1975 - GMC G25 V - 8 Cyl 5.7L 350

Autolite
  • Autolite 145 Copper Resistor Spark Plug
  • Heavy Duty OE Style ; Except High Energy Ignition .035 Gap
  • Copper Resistor Spark Plug
  • Product Attributes:
    • Center Electrode Design: Standard / Regular
    • Seat Type: Tapered
    • Electrical Terminal Type: Stud
    • Ground Electrode Tip Material: Nickel
    • Center Electrode Core Material: Copper
    • Resistor Type: Yes
    • Insulator Material: Ceramic
    • Hex Size: 5/8"
    • Reach:
      • 0.431
      • 11.0
    • Center Electrode Tip Material: Nickel
    • Ground Electrode Tip Design: Tapered
    • Insulator Type: Short
    • Pre-Gap Size:
      • 0.040
      • 1.00
    • Resistance: 4000
    • Ground Electrode Core Material: Nickel
  • Autolite® Copper Spark Plugs are manufactured to deliver quick starts, improved fuel economy and smooth acceleration. Autolite® spark plugs are the best alternative to OE spark plugs, offering OE form, fit and function for all makes and models, both foreign and domestic, at a value price. Autolite provides the automotive aftermarket and Original Equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs.
  • Suggested Purchase Quantity: 8
    • Most jobs typically require 8 of this item.
  • This item must be purchased in quantities of 4

Additional Fitment Information:
Vehicle Block CC Engine CID
1975 - GMC G25 L - 6 Cyl 4.8L 292

Denso
  • Susciter Fiche Iridium TT
  • Gap 0.040 Iridium TT - Ultimate Endurance and Power, 0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology
  • Susciter Fiche Iridium TT
  • Iridium TT
  • Product Attributes:
    • Hex Size: 16.0
    • Reach: 11.60
    • Center Electrode Tip Material: Iridium
    • Seat Type: Tapered
    • Ground Electrode Tip Design: Platinum Twin-tip
    • Center Electrode Core Material: Copper
    • Ground Configuration: Twin-tip
    • Pre-Gap Size: 1.0
    • Resistance: 5000
    • Ground Electrode Core Material: Nickel
  • Durability of an OE style plug combined with Power & Torque of high performance.
  • Suggested Purchase Quantity: 4
    • Most jobs typically require 4 of this item.

This Part Fits the Following OEM/Substitute Numbers:
19208523, 19300383, 19300873, 19301654, 19302742, 19310656, 4289 155, 5613302, 5613794, 5613842, 5613867, 5613877, 5613935, 5613956, 5613957, 5614229, 5614243, 88901021...VIEW MORE

Additional Fitment Information:
Vehicle
1975 - GMC G25

Denso
  • Susciter Fiche Iridium TT
  • Gap 0.040 Iridium TT - Ultimate Endurance and Power, 0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology
  • Susciter Fiche Iridium TT
  • Iridium TT
  • Product Attributes:
    • Hex Size: 16.0
    • Reach: 11.60
    • Center Electrode Tip Material: Iridium
    • Seat Type: Tapered
    • Ground Electrode Tip Design: Platinum Twin-tip
    • Center Electrode Core Material: Copper
    • Ground Configuration: Twin-tip
    • Pre-Gap Size: 1.0
    • Resistance: 5000
    • Ground Electrode Core Material: Nickel
  • Durability of an OE style plug combined with Power & Torque of high performance.
  • Suggested Purchase Quantity: 4
    • Most jobs typically require 4 of this item.

Additional Fitment Information:
Vehicle
1975 - GMC G25

Autolite
  • Autolite AP145 Platinum Spark Plug
  • .035 Gap
  • Platinum Spark Plug
  • Product Attributes:
    • Center Electrode Design: Standard / Regular
    • Seat Type: Tapered
    • Electrical Terminal Type: Stud
    • Ground Electrode Tip Material: Nickel
    • Center Electrode Core Material: Platinum
    • Resistor Type: Yes
    • Insulator Material: Ceramic
    • Hex Size: 5/8"
    • Reach:
      • 0.433
      • 11.0
    • Center Electrode Tip Material: Platinum
    • Ground Electrode Tip Design: Tapered
    • Insulator Type: Short
    • Pre-Gap Size:
      • 0.040
      • 1.00
    • Resistance: 4000
    • Ground Electrode Core Material: Nickel
  • Autolite® Platinum Spark Plugs are manufactured to deliver greater durability compared to standard copper plugs. Autolite® Platinum Spark Plugs provide easier starts, quicker acceleration, and improved fuel economy. Autolite® spark plugs are the best alternative to OE spark plugs, offering OE form, fit and function for all makes and models, both foreign and domestic, at a value price. Autolite provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs.
  • Suggested Purchase Quantity: 8
    • Most jobs typically require 8 of this item.
  • This item must be purchased in quantities of 4

Additional Fitment Information:
Vehicle Block CC Engine CID
1975 - GMC G25 V - 8 Cyl 5.7L 350

E3 Spark Plug
  • Resistor; 5/8 in. Hex Size; 0.460 in. Thread Reach; 14mm Thread Diameter; Taper Seat; DiamondFIRE Tip w/Fixed Gap;Plug Gap Not Adjustable Light Duty~For Light Duty Applications
  • Premium Automotive Spark Plug; Resistor; 5/8 in. Hex Size; 0.460 in. Thread Reach; 14mm Thread Diameter; Taper Seat; DiamondFIRE Tip w/Fixed Gap;
  • Premium Automotive Spark Plug
  • Product Attributes:
    • WARNING CA Proposition 65: Yes
    • WARNING CA Proposition 65 Message: Warning: This Product Can Expose You To Chemicals; Including Chromium; Which Is Know To The State Of California To Cause Cancer Or Birth Defects Or Other Reproductive Harm. For More Information; Visit Www.p65warnings.ca.gov
  • Features:
    • Patented DiamondFIRE Ground Electrode
    • Edge-To-Edge Ground Electrode Out Performs Other Plug Designs
    • E3 Equipped Engines Can Minimize Venting Of Unburned Fuel
    • Burn Fuel More Efficiently By Burning Fuel More Completely
    • Provide A Like-New Performance For The Life Of The Plug
    • The Most Environmentally-Friendly Plug Available
  • E3 Spark Plugs are the product of years of fundamental research in the combustion field. The unique patented ground electrode configuration increases the amount of combustion pressure created during each power stroke of the engine, which results in a marked increase in power output, fuel economy, and reduced emissions in all gasoline engines. E3's DiamondFire edge to edge ground electrode provides maximum performance with increased efficiency and a faster more complete burn.
  • Suggested Purchase Quantity: 8
    • Most jobs typically require 8 of this item.

This Part Fits the Following OEM/Substitute Numbers:
1, 17, 18, 19, 2, 2018, 2025, 2037, 2079, 2096, 2406, 2416, 25, 26, 2841, 286, 2869, 3025...VIEW MORE

Additional Fitment Information:
Vehicle Block CC Engine CID
1975 - GMC G25 V - 8 Cyl 5.7L 350

E3 Spark Plug
  • Resistor; 5/8 in. Hex Size; 0.460 in. Thread Reach; 14mm Thread Diameter; Taper Seat; DiamondFIRE Tip w/Fixed Gap;Plug Gap Not Adjustable For Heavy Duty Applications~Heavy Duty
  • Premium Automotive Spark Plug; Resistor; 5/8 in. Hex Size; 0.460 in. Thread Reach; 14mm Thread Diameter; Taper Seat; DiamondFIRE Tip w/Fixed Gap;
  • Premium Automotive Spark Plug
  • Product Attributes:
    • WARNING CA Proposition 65: Yes
    • WARNING CA Proposition 65 Message: Warning: This Product Can Expose You To Chemicals; Including Chromium; Which Is Know To The State Of California To Cause Cancer Or Birth Defects Or Other Reproductive Harm. For More Information; Visit Www.p65warnings.ca.gov
  • Features:
    • Patented DiamondFIRE Ground Electrode
    • Edge-To-Edge Ground Electrode Out Performs Other Plug Designs
    • E3 Equipped Engines Can Minimize Venting Of Unburned Fuel
    • Burn Fuel More Efficiently By Burning Fuel More Completely
    • Provide A Like-New Performance For The Life Of The Plug
    • The Most Environmentally-Friendly Plug Available
  • E3 Spark Plugs are the product of years of fundamental research in the combustion field. The unique patented ground electrode configuration increases the amount of combustion pressure created during each power stroke of the engine, which results in a marked increase in power output, fuel economy, and reduced emissions in all gasoline engines. E3's DiamondFire edge to edge ground electrode provides maximum performance with increased efficiency and a faster more complete burn.
  • Suggested Purchase Quantity: 8
    • Most jobs typically require 8 of this item.

This Part Fits the Following OEM/Substitute Numbers:
10, 108, 121, 144, 145, 147, 2248, 23, 2318, 24, 2400, 2623, 274, 276, 2771, 2927, 2953, 3018...VIEW MORE

Additional Fitment Information:
Vehicle Block CC Engine CID
1975 - GMC G25 V - 8 Cyl 7.4L 454

E3 Spark Plug
  • Resistor; 5/8 in. Hex Size; 0.460 in. Thread Reach; 14mm Thread Diameter; Taper Seat; DiamondFIRE Tip w/Fixed Gap;Plug Gap Not Adjustable Heavy Duty; w/o HEI~Light Duty; with HEI
  • Premium Automotive Spark Plug; Resistor; 5/8 in. Hex Size; 0.460 in. Thread Reach; 14mm Thread Diameter; Taper Seat; DiamondFIRE Tip w/Fixed Gap;
  • Premium Automotive Spark Plug
  • Product Attributes:
    • WARNING CA Proposition 65: Yes
    • WARNING CA Proposition 65 Message: Warning: This Product Can Expose You To Chemicals; Including Chromium; Which Is Know To The State Of California To Cause Cancer Or Birth Defects Or Other Reproductive Harm. For More Information; Visit Www.p65warnings.ca.gov
  • Features:
    • Patented DiamondFIRE Ground Electrode
    • Edge-To-Edge Ground Electrode Out Performs Other Plug Designs
    • E3 Equipped Engines Can Minimize Venting Of Unburned Fuel
    • Burn Fuel More Efficiently By Burning Fuel More Completely
    • Provide A Like-New Performance For The Life Of The Plug
    • The Most Environmentally-Friendly Plug Available
  • E3 Spark Plugs are the product of years of fundamental research in the combustion field. The unique patented ground electrode configuration increases the amount of combustion pressure created during each power stroke of the engine, which results in a marked increase in power output, fuel economy, and reduced emissions in all gasoline engines. E3's DiamondFire edge to edge ground electrode provides maximum performance with increased efficiency and a faster more complete burn.
  • Suggested Purchase Quantity: 8
    • Most jobs typically require 8 of this item.

Additional Fitment Information:
Vehicle Block CC Engine CID
1975 - GMC G25 L - 6 Cyl 4.8L 292

Autolite
  • Autolite AP145 Platinum Spark Plug
  • Heavy Duty; Without high energy ignition .035 Gap
  • Platinum Spark Plug
  • Product Attributes:
    • Center Electrode Design: Standard / Regular
    • Seat Type: Tapered
    • Electrical Terminal Type: Stud
    • Ground Electrode Tip Material: Nickel
    • Center Electrode Core Material: Platinum
    • Resistor Type: Yes
    • Insulator Material: Ceramic
    • Hex Size: 5/8"
    • Reach:
      • 0.433
      • 11.0
    • Center Electrode Tip Material: Platinum
    • Ground Electrode Tip Design: Tapered
    • Insulator Type: Short
    • Pre-Gap Size:
      • 0.040
      • 1.00
    • Resistance: 4000
    • Ground Electrode Core Material: Nickel
  • Autolite® Platinum Spark Plugs are manufactured to deliver greater durability compared to standard copper plugs. Autolite® Platinum Spark Plugs provide easier starts, quicker acceleration, and improved fuel economy. Autolite® spark plugs are the best alternative to OE spark plugs, offering OE form, fit and function for all makes and models, both foreign and domestic, at a value price. Autolite provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs.
  • Suggested Purchase Quantity: 8
    • Most jobs typically require 8 of this item.
  • This item must be purchased in quantities of 4

This Part Fits the Following OEM/Substitute Numbers:
10, 121, 4000, 4323, 5029, ARF4

Additional Fitment Information:
Vehicle Block CC Engine CID
1975 - GMC G25 L - 6 Cyl 4.8L 292

Autolite
  • Autolite 685 Copper Resistor Spark Plug
  • Light Duty OE Style with High Energy Ignition (HEI) ; .060 Gap
  • Copper Resistor Spark Plug
  • Product Attributes:
    • Center Electrode Design: Standard / Regular
    • Seat Type: Tapered
    • Electrical Terminal Type: Stud
    • Ground Electrode Tip Material: Nickel
    • Center Electrode Core Material: Copper
    • Resistor Type: Yes
    • Insulator Material: Ceramic
    • Hex Size: 5/8"
    • Reach:
      • 0.433
      • 11.0
    • Center Electrode Tip Material: Nickel
    • Ground Electrode Tip Design: Tapered
    • Insulator Type: Short
    • Pre-Gap Size:
      • 0.060
      • 1.50
    • Resistance: 5000
    • Ground Electrode Core Material: Nickel
  • Autolite® Copper Spark Plugs are manufactured to deliver quick starts, improved fuel economy and smooth acceleration. Autolite® spark plugs are the best alternative to OE spark plugs, offering OE form, fit and function for all makes and models, both foreign and domestic, at a value price. Autolite provides the automotive aftermarket and Original Equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs.
  • Suggested Purchase Quantity: 8
    • Most jobs typically require 8 of this item.
  • This item must be purchased in quantities of 4

This Part Fits the Following OEM/Substitute Numbers:
108, 41-830, 5030, 7240, ARF2-6

Additional Fitment Information:
Vehicle Block CC Engine CID
1975 - GMC G25 L - 6 Cyl 4.8L 292
Showing 1 - 10 of 18 products

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