GMC Terrain Spark Plugs

Your One-Stop Shop For Trusted GMC Terrain Spark Plugs

If you’re in search of GMC Terrain Spark Plugs aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 41 Spark Plugs from top brands with prices ranging from $4.99 to $61.99.

Beyond great prices, we stock trusted brands manufacturing all types of Spark Plugs for your GMC Terrain.

And don’t forget to read customer reviews across all Spark Plugs categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Spark Plugs have to cost top dollar, and we prove it. Browse our top GMC Terrain Spark Plugs below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

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Essential GMC Terrain Spark Plugs

Melling – Stock Replacement Spark Plug Tube (Part No.MSPT-4)

Stock Replacement Spark Plug Tube

from

$11.99
Product Features:
  • Precision engineered for optimum fit and function
  • Manufactured from high quality materials for consistent durable wear
  • Designed for long-life and worry-free performance
  • Meets or exceeds original equipment specifications
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Victor Reinz – Spark Plug Tube Seal Set (Part No.18-10035-01)

Spark Plug Tube Seal Set

from

$61.99
Product Features:
  • Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
  • Dana engineering-approved for fit, form and function
  • Meets or exceeds OE specifications
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Felpro – Spark Plug Tube Seal Set (Part No.ES 72393)

Spark Plug Tube Seal Set

from

$52.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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NGK – Laser Iridium Spark Plug (ILNAR8B7G): Fine Wire Tip for Precision Ignition (Part No.91970)

Laser Iridium Spark Plug (ILNAR8B7G): Fine Wire Tip for Precision Ignition

from

$23.99
NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. Most Laser Iridium spark plugs feature a platinum pad on the ground electrode for even wear in distributorless ignition systems.

Product Features:
  • ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction fine wire iridium alloy center electrode provides consistent performance
  • IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
  • PLATINUM TIP GROUND ELECTRODE: Unless OE specified, platinum protection at the ground electrode provides excellent ignitability and service life
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
  • RECOMMENDED USAGE: Best for vehicles with OE fine wire iridium alloy plugs
  • Superior Durability: The iridium-tipped center electrode is six times harder than platinum, ensuring long-lasting performance.
  • OE Application Specific: Engineered specifically for Original Equipment (OE) applications, ensuring a perfect fit and optimal performance.
  • Even Wear: Features a platinum pad on the ground electrode for even wear, particularly beneficial in distributorless ignition systems.
  • Fine Wire Tip Design: The fine wire tip design of the ILNAR8B7G model enhances ignition efficiency and performance.
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DENSO – Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, ITV16 (Part No.5338)

Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, ITV16

from

$13.99
The Iridium Power Spark Plug, featuring the world’s smallest 0.4mm Iridium Center Electrode, delivers unmatched spark energy for maximum combustion efficiency. Engineered with a patented 360-degree laser welding assembly process, it ensures durability and precision under extreme conditions. The U-groove and taper-cut ground electrode design optimizes flame propagation, enhancing horsepower, fuel efficiency, and overall engine performance. With the ability to withstand temperatures exceeding 4000 Deg F and burnished nickel plating for superior corrosion resistance, this spark plug is built for longevity. Requiring 5,000 volts less to fire compared to conventional plugs, it guarantees reliable starts, fewer misfires under heavy loads, and consistent performance even in demanding environments. Designed with a tapered seat type for a secure fit, it is compatible with a wide range of vehicles, including classic and collector cars. Experience the superior performance and efficiency of the DENSO Iridium Power Spark Plug, a perfect choice for those seeking enhanced engine power and reliability.

Product Features:
  • World’s smallest Iridium Center Electrode (0.4mm) for improved spark for maximum combustion
  • Patented 360-degree laser welding assembly process
  • U-groove and taper cut ground electrode to maximize flame propagation.
  • Withstands temperatures greater than 4000 degree Fahrenheit
  • Burnished nickel plating for high temperature endurance and superior corrosion resistance
  • Wide range of part numbers for thousands of applications, including classic and collector cars
  • Iridium Power
  • Superior Performance: This spark plug requires 5,000 volts less to fire compared to conventional spark plugs, providing maximum performance even under extreme conditions.
  • Enhanced Horsepower and Efficiency: Experience more horsepower, faster and easier starts, fewer misfires under heavy loads, and improved fuel efficiency with the DENSO Iridium Power spark plug.
  • Tapered Seat Type: Designed with a tapered seat type, the DENSO Iridium Power spark plug ensures a secure fit and optimal performance.
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NGK – Iridium IX Spark Plug (LTR6IX-11): Extreme Ignitability & Durability (Part No.6509)

Iridium IX Spark Plug (LTR6IX-11): Extreme Ignitability & Durability

from

$17.99
NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode’s durability is six times harder than platinum. Iridium alloy’s extremely high melting point is perfect for today’s engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.

Product Features:
  • SINGLE IRIDIUM TIP: Fine wire 0.6 millimeter iridium tip center electrode ensures high durability and a consistently stable spark
  • IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
  • TAPERED CUT GROUND ELECTRODE: Reduced quenching design produces outstanding ignitability, improved acceleration, fuel efficiency and durability
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
  • RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
  • Outstanding Acceleration and High Fuel Efficiency: NGK Iridium IX spark plugs are engineered to deliver superior acceleration and enhance fuel efficiency, making them ideal for performance enthusiasts.
  • Extreme Ignitability and Anti-Fouling: These spark plugs offer exceptional ignitability and anti-fouling properties, ensuring reliable performance and longevity.
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NGK – G-Power Platinum Spark Plug (LTR5GP): Enhanced Durability & Efficiency (Part No.5019)

G-Power Platinum Spark Plug (LTR5GP): Enhanced Durability & Efficiency

from

$10.49
NGK G-Power Platinum spark plugs are the best single platinum spark plugs at an economical price. G-Power plugs feature a fine wire platinum center electrode and a trapezoidal cut ground electrode that offers increased durability, improved fuel efficiency, lower emissions, faster starts and quicker acceleration over conventional nickel spark plugs. An excellent upgrade for vehicles which used nickel alloy spark plugs originally. For better performance consider upgrading to a NGK Iridium IX plug. For even greater performance consider upgrading to a NGK RUTHENIUM HX plug.

Product Features:
  • SINGLE PLATINUM TIP: Fine wire 0.6 millimeter platinum tip center electrode ensures improved durability and a consistently stable spark
  • PLATINUM ALLOY: G-Power platinum provides exceptional value with increased performance and longer service intervals than factory nickel plugs
  • TRAPEZOIDAL CUT GROUND ELECTRODE: Reduces quenching design produces improved ignitability and performance
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
  • RECOMMENDED USAGE: Lower cost alternative to double precious metal spark plugs or as an upgrade to OE nickel alloy spark plugs
  • Enhanced Vehicle Performance: Experience faster starts and quicker acceleration compared to conventional nickel spark plugs, making it an excellent upgrade for vehicles originally using nickel alloy spark plugs.
  • Economical Upgrade: NGK G-Power Platinum spark plugs provide a cost-effective solution for upgrading your vehicle’s spark plugs without compromising on quality.
  • Compatibility and Versatility: Ideal for a wide range of vehicles, these spark plugs are a perfect fit for those looking to replace their nickel alloy spark plugs with a more durable and efficient option.
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ACDelco – Iridium Spark Plug (Part No.41-108)

Iridium Spark Plug

from

$12.99
ACDelco GM Original Equipment Iridium Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. They are our latest in spark plug technology and an exact replacement for your vehicle’s original components. Iridium composition provides a high melting point and great strength, and provides excellent wear resistance and durability. ACDelco GM Original Equipment parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.

Product Features:
  • Iridium is the latest in spark plug technology and is an exact replacement for vehicles original components
  • Iridium composition provides a high melting point and great strength, helps to provide excellent wear resistance and durability
  • Iridium offers excellent engine idle stability, reliable cold starting, quick acceleration and smooth performance
  • Three Piece Fired in Suppressor seal meters spark energy for long electrode life, helps prevent combustion leakage and helps block radio frequencies that can affect vehicle electronics
  • Iridium plugs are laser-welded which provides precision welds, reduces excess debris and wear rate, thus increasing durability
  • Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
  • ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
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Autolite Iridium – Iridium Ultra Fine Wire Spark Plug: Laser Welded for Optimum Performance (Part No.AI5263)

Iridium Ultra Fine Wire Spark Plug: Laser Welded for Optimum Performance

from

$10.99
Autolite Iridium Ultra Laser Fine wire Spark Plugs are one of our brand’s most technologically advanced products. These spark plugs provide superior durability, more focused ignition with better overall ignitability for optimum performance. Autolite Spark Plugs are the best alternative to OE spark plugs, offering OE fit form and function supporting all foreign and domestic makes and models 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 in the world.

Product Features:
  • Autolite Iridium Ultra is an engineered OE replacement iridium spark plug.
  • A laser-welded 0.5mm pure iridium finewire center electrode provides optimal fuel efficiency, acceleration and focused ignitability.
  • Nickel-plated shell to resist corrosion.
  • High-alumina ceramic insulator for increased strength.
  • Laser welded 0.5mm Iridium finewire center electrode.
  • Proprietary platinum sidewire technology.
  • Superior Durability: Autolite Iridium Ultra Laser Fine wire Spark Plugs are designed to last longer, providing extended service life compared to standard spark plugs.
  • OE Fit and Function: Autolite Spark Plugs are the best alternative to original equipment (OE) spark plugs, offering perfect fit, form, and function for all foreign and domestic makes and models.
  • High-Quality Construction: As a leading supplier of spark plugs globally, Autolite ensures the highest quality ignition products for both the automotive aftermarket and original equipment manufacturers.
  • Value Pricing: Despite their advanced technology and superior performance, Autolite Iridium Ultra Laser Fine wire Spark Plugs are available at a value price, making them an economical choice for vehicle maintenance.
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Autolite – Platinum Spark Plug: Enhanced Durability & Improved Performance (Part No.AP5263)

Platinum Spark Plug: Enhanced Durability & Improved Performance

from

$4.99
Autolite Platinum spark plugs are crafted for superior performance and durability, making them ideal for older engine applications. Featuring a platinum center electrode firing tip, these spark plugs ensure quicker firing, smoother starts, and enhanced acceleration while boosting fuel efficiency. The platinum firing tip resists gap erosion, extending service life, while the high alumina ceramic insulator offers excellent thermal conductivity and insulation for added strength. A multi-rib insulator prevents flash-over, ensuring reliable operation, and the nickel-plated shell resists corrosion for long-lasting durability. With a mid-projection standard center electrode design and a tapered seat type, these performance-grade spark plugs deliver consistent results. The combination of platinum and nickel materials in the electrode tips further enhances reliability, making them a dependable choice for maintaining engine efficiency and longevity.

Product Features:
  • Engineered with a platinum firing tip that prevents gap erosion for longer service life.
  • Its high alumina ceramic insulator provides thermal conductivity and superior insulation for increased strength.
  • The multi-rib insulator prevents flash-over.
  • Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended life.
  • Incorporates a mid-projection standard center electrode design for consistent and reliable engine performance.
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DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, ITV16TT (Part No.4718)

Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, ITV16TT

from

$12.99
The Iridium TT Spark Plug combines the durability of an OE-style plug with the power and torque of high-performance engineering, making it a standout choice for automotive enthusiasts. Featuring a 0.4mm Iridium center electrode – the world’s smallest diameter – it maximizes firing potential, while the 0.7mm needle tip ground electrode enhances spark energy and minimizes heat quenching. Built with DENSO’s patented Iridium-Rhodium alloy formula, it boasts the highest concentration of Iridium for unmatched durability, even under extreme conditions exceeding 4000 Deg F. The 360-degree laser welding process ensures a robust bond and structural integrity, delivering consistent performance. Designed with a tapered seat type for a secure fit, this spark plug not only enhances fuel economy and reduces emissions but also offers the capability to drive around the Earth over four times with improved efficiency. For those seeking reliability, endurance, and peak performance, this spark plug is engineered to meet the highest standards of automotive excellence.

Product Features:
  • 0.4mm Iridium Center Electrode: World’s Smallest Diameter that maximizes firing potential
  • 0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
  • DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
  • DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
  • Durability of an OE style plug combined with Power and Torque of high performance.
  • Withstands temperatures greater than 4000 degree Fahrenheit
  • Iridium TT
  • Enhanced Fuel Economy and Lower Emissions: Drive around the Earth over 4 times with improved fuel efficiency and reduced emissions.
  • Tapered Seat Type: Ensures a secure fit and optimal performance, tailored to meet the highest standards of automotive engineering.
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NGK – Laser Iridium Spark Plug (ILTR6M9G): Fine Wire Tip for Precision (Part No.94489)

Laser Iridium Spark Plug (ILTR6M9G): Fine Wire Tip for Precision

from

$10.79
NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. Most Laser Iridium spark plugs feature a platinum pad on the ground electrode for even wear in distributorless ignition systems.

Product Features:
  • ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction fine wire iridium alloy center electrode provides consistent performance
  • IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
  • PLATINUM TIP GROUND ELECTRODE: Unless OE specified, platinum protection at the ground electrode provides excellent ignitability and service life
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
  • RECOMMENDED USAGE: Best for vehicles with OE fine wire iridium alloy plugs
See More

DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, ITV20TT (Part No.4719)

Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, ITV20TT

from

$13.99
The Iridium TT Spark Plug combines the durability of an OE-style plug with the power and torque of high-performance engineering, making it a top choice for demanding drivers. Featuring a 0.4mm Iridium center electrode – the world’s smallest diameter – it maximizes firing potential for superior ignition. The 0.7mm needle tip ground electrode promotes higher spark energy while reducing heat quenching, ensuring consistent performance. Built with DENSO’s patented Iridium-Rhodium alloy formula, it boasts the highest concentration of Iridium among competitors, delivering unmatched durability. The 360-degree laser welding process ensures a robust bond and structural integrity, even under extreme conditions. With the ability to withstand temperatures exceeding 4000 Deg F, this spark plug is engineered for ultimate endurance. Its tapered seat design further enhances compatibility and fitment. Whether you’re seeking enhanced power or long-lasting reliability, this Iridium TT plug delivers exceptional value and performance.

Product Features:
  • 0.4mm Iridium Center Electrode: World’s Smallest Diameter that maximizes firing potential
  • 0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
  • DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
  • DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
  • Durability of an OE style plug combined with Power and Torque of high performance.
  • Withstands temperatures greater than 4000 degree Fahrenheit
  • Iridium TT
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Bosch – OE Fine Wire Double Iridium Spark Plug: High Performance & Longevity (Part No.9616)

OE Fine Wire Double Iridium Spark Plug: High Performance & Longevity

from

$10.99
BOSCH OE Fine Wire Double Iridium. All iridium plugs are NOT created equal. Give your customers the only one engineered for both high performance and long life. The ultra fine wire design and laser welded, tapered ground electrode deliver the ultimate in ignitability and high performance. The iridium-alloy center electrode firing pin and laser welded ground electrode with iridium alloy inlay help it to go the distance.

Product Features:
  • Double Iridium electrodes iridium firing pin and iridium ground electrode inlay offer higher performance and 4 times longer life compared to standard copper spark plugs.
  • OE Fine Wire design requires up to 24% less voltage to ignite
  • 360 degree continuous laser welding increases durability for increased life
  • Copper core provides broader heat range to resist pre-ignition and fouling
  • Pre-gapped and nickel plated threads allow for quick installation without adjusting the gap or applying anti-seize
  • Tapered ground electrode allows for better ignition throughout the life of the spark plug
  • Customer satisfaction guarantee (visit www.boschautoparts.com/sparkplugs for details)
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ACDelco – Iridium Spark Plug (Part No.41-156)

Iridium Spark Plug

from

$12.99
ACDelco GM Original Equipment Iridium Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. They are our latest in spark plug technology and an exact replacement for your vehicle’s original components. Iridium composition provides a high melting point and great strength, and provides excellent wear resistance and durability. ACDelco GM Original Equipment parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.

Product Features:
  • Iridium is the latest in spark plug technology and is an exact replacement for vehicles original components
  • Iridium composition provides a high melting point and great strength, helps to provide excellent wear resistance and durability
  • Iridium offers excellent engine idle stability, reliable cold starting, quick acceleration and smooth performance
  • Three Piece Fired in Suppressor seal meters spark energy for long electrode life, helps prevent combustion leakage and helps block radio frequencies that can affect vehicle electronics
  • Iridium plugs are laser-welded which provides precision welds, reduces excess debris and wear rate, thus increasing durability
  • Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
  • ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
  • Enhanced Performance: The iridium material and conical seat type ensure optimal performance and longevity, making them ideal for maintaining your vehicle’s efficiency.
  • Built-In Resistor: Equipped with a resistor to reduce electromagnetic interference, ensuring smooth and reliable engine performance.
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NGK – Iridium IX Spark Plug (LTR5IX-11): Extreme Ignitability & Durability (Part No.4344)

Iridium IX Spark Plug (LTR5IX-11): Extreme Ignitability & Durability

from

$13.99
NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode’s durability is six times harder than platinum. Iridium alloy’s extremely high melting point is perfect for today’s engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.

Product Features:
  • SINGLE IRIDIUM TIP: Fine wire 0.6 millimeter iridium tip center electrode ensures high durability and a consistently stable spark
  • IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
  • TAPERED CUT GROUND ELECTRODE: Reduced quenching design produces outstanding ignitability, improved acceleration, fuel efficiency and durability
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
  • RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
  • Outstanding Acceleration and High Fuel Efficiency: NGK Iridium IX spark plugs are engineered to deliver superior acceleration and enhance fuel efficiency, making them ideal for performance enthusiasts.
  • Extreme Ignitability and Anti-Fouling: These spark plugs offer exceptional ignitability and anti-fouling properties, ensuring reliable performance and longevity.
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NGK – G-Power Platinum Spark Plug (LTR6GP-8): Enhanced Durability & Efficiency (Part No.94372)

G-Power Platinum Spark Plug (LTR6GP-8): Enhanced Durability & Efficiency

from

$9.49
NGK G-Power Platinum spark plugs are the best single platinum spark plugs at an economical price. G-Power plugs feature a fine wire platinum center electrode and a trapezoidal cut ground electrode that offers increased durability, improved fuel efficiency, lower emissions, faster starts and quicker acceleration over conventional nickel spark plugs. An excellent upgrade for vehicles which used nickel alloy spark plugs originally. For better performance consider upgrading to a NGK Iridium IX plug. For even greater performance consider upgrading to a NGK RUTHENIUM HX plug.

Product Features:
  • SINGLE PLATINUM TIP: Fine wire 0.6 millimeter platinum tip center electrode ensures improved durability and a consistently stable spark
  • PLATINUM ALLOY: G-Power platinum provides exceptional value with increased performance and longer service intervals than factory nickel plugs
  • TRAPEZOIDAL CUT GROUND ELECTRODE: Reduces quenching design produces improved ignitability and performance
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
  • RECOMMENDED USAGE: Lower cost alternative to double precious metal spark plugs or as an upgrade to OE nickel alloy spark plugs
  • Enhanced Durability: Designed to last longer and perform better under various driving conditions.
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ACDelco – RAPIDFIRE Spark Plug (Part No.17)

RAPIDFIRE Spark Plug

from

$7.99
ACDelco Gold (Professional) RAPIDFIRE Spark Plugs are a high quality alternative to Original Equipment (OE) parts. These RAPIDFIRE Single Platinum Performance Spark Plugs are designed for everyday use and are a high quality replacement for many vehicles on the road today. These premium aftermarket spark plugs have high-quality suppressors that help prevent misfiring, an improved plug to boot seal, and a pure copper core for greater durability. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.

Product Features:
  • Solid state suppressor, with two-piece glass and brass seal, can help reduce radio frequency interference, regulates spark energy for long electrode life, and helps protect against high combustion pressures
  • Pure copper core provides great heat transfer and helps maximize plug durability
  • Platinum on center electrode enables superior spark characteristics and can reduce voltage requirements of the ignition system
  • Ribless insulator helps optimize plug to boot sea
  • Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
  • Premium aftermarket replacement part
  • Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
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DENSO – Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, ITV20 (Part No.5339)

Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, ITV20

from

$12.99
The Iridium Power Spark Plug features the world’s smallest Iridium Center Electrode at just 0.4mm, delivering unmatched spark precision for maximum combustion efficiency. Engineered with a patented 360-degree laser welding assembly process, it ensures exceptional durability and reliability under extreme conditions. The U-groove and taper-cut ground electrode design optimizes flame propagation, enhancing overall engine performance. Built to withstand temperatures exceeding 4000 degrees Fahrenheit, this spark plug is burnished with nickel plating for superior high-temperature endurance and corrosion resistance. Its iridium tip material guarantees long-lasting performance, while the tapered seat type ensures a secure fit. With a wide range of part numbers available, it is compatible with thousands of applications, including classic and collector cars. Choose this spark plug for maximum spark energy, durability, and enhanced engine efficiency.

Product Features:
  • World’s smallest Iridium Center Electrode (0.4mm) for improved spark for maximum combustion
  • Patented 360-degree laser welding assembly process
  • U-groove and taper cut ground electrode to maximize flame propagation.
  • Withstands temperatures greater than 4000 degree Fahrenheit
  • Burnished nickel plating for high temperature endurance and superior corrosion resistance
  • Wide range of part numbers for thousands of applications, including classic and collector cars
  • Iridium Power
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ACDelco – Double Platinum Spark Plug (Part No.41-834)

Double Platinum Spark Plug

from

$10.99
ACDelco Gold (Professional) Double Platinum Spark Plug are a high quality alternative to Original Equipment (OE) parts. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.

Product Features:
  • One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine interference, regulate spark plug energy, and protect against compression pressures for long life
  • Double platinum point pad on center and ground electrode offer excellent durability and consistent voltage demands to help reduce wear on ignition system
  • Pure copper core results in cooler electrode temperature for maximized durability and fouling resistance
  • Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
  • Premium aftermarket replacement part
  • Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
  • Conical Seat Type: Designed with a conical seat type for a secure fit and reliable function.
  • Resistor Type: Includes a resistor to help reduce radio frequency interference, ensuring smooth engine performance.
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ACDelco – Double Platinum Spark Plug (Part No.41-814)

Double Platinum Spark Plug

from

$10.99
ACDelco Gold (Professional) Double Platinum Spark Plug are a high quality alternative to Original Equipment (OE) parts. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.

Product Features:
  • One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine interference, regulate spark plug energy, and protect against compression pressures for long life
  • Double platinum point pad on center and ground electrode offer excellent durability and consistent voltage demands to help reduce wear on ignition system
  • Pure copper core results in cooler electrode temperature for maximized durability and fouling resistance
  • Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
  • Premium aftermarket replacement part
  • Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
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Champion – Platinum Power Spark Plug (RE10PMC5): Powerful Performance & Longevity (Part No.3032)

Platinum Power Spark Plug (RE10PMC5): Powerful Performance & Longevity

from

$5.99
Champion Platinum Power spark plugs are engineered to deliver exceptional performance and durability, making them an ideal choice for maintaining your vehicle’s peak efficiency. Featuring a platinum center electrode, these spark plugs ensure long-lasting reliability and consistent performance. The fine-wire center electrode enhances ignitability, while the V-trimmed ground electrode sharpens spark focus for improved combustion. Constructed with the exclusive Heat-Active alloy, these plugs quickly reach and maintain optimal operating temperatures, ensuring smooth engine operation under various conditions. The platinum-tipped center wire resists wear and helps maintain the proper gap specification throughout the plug’s lifespan, reducing the need for frequent replacements. Designed as a standard replacement with a tapered seat type, these spark plugs are compatible with a wide range of vehicles. With a nickel ground electrode tip and integrated resistor, they provide dependable performance and value, making them a smart investment for any driver seeking powerful and efficient ignition.

Product Features:
  • Platinum Power- Premium Spark Plug. Powerful Performance.
  • Platinum center electrode for long life
  • Fine-wire center electrode for greater ignitability
  • V-trimmed ground electrode promotes sharper spark focus
  • Heat-Active alloy allows electrodes to reach optimal temperature
  • Platinum tipped center wire resists wear and helps to maintain proper gap spec over life of the plug
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NGK – Laser Platinum Spark Plug (PLTR6A-10G): Enhanced Ignitability & Longevity (Part No.3587)

Laser Platinum Spark Plug (PLTR6A-10G): Enhanced Ignitability & Longevity

from

$13.99
NGK Laser Platinum spark plugs provide high ignitability and longer service life compared to conventional nickel spark plugs. Laser Platinum plugs are tested to the highest standards to ensure quality and durability. Engineered specifically for OE applications. Laser platinum plugs provide stable idling, superior anti-fouling, improved fuel efficiency and lower emissions. High-grade pure alumina ceramic and 98% pure copper core prevents spark plug from overheating and provides reliable starts. Most Laser Platinum spark plugs feature a platinum pad on the ground electrode for even wear in distributorless ignition systems.

Product Features:
  • ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction fine wire platinum alloy center electrode provides consistent performance
  • PLATINUM ALLOY CENTER ELECTRODE: Longer wearing and higher temperature resistance compared to traditional nickel spark plugs
  • PLATINUM TIP GROUND ELECTRODE: Unless OE specified, platinum protection at the ground electrode provides excellent ignitability and service life
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
  • RECOMMENDED USAGE: Best for vehicles with OE fine wire platinum alloy plugs
  • Enhanced Fuel Efficiency and Lower Emissions: These spark plugs contribute to improved fuel efficiency and reduced emissions, making them an eco-friendly choice.
  • Superior Anti-Fouling and Stable Idling: The advanced design provides stable idling and superior resistance to fouling, ensuring consistent engine performance.
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NGK – Ruthenium HX Spark Plug (LTR5AHX): High Ignitability & Durability (Part No.90220)

Ruthenium HX Spark Plug (LTR5AHX): High Ignitability & Durability

from

$19.49
NGK Ruthenium HX High Ignitability spark plugs are the best in class plug for todays modern vehicles. Patented Ruthenium technology offers the most advance tip technology and delivers the highest performance and life expectancy. Created from advanced OE technology as a high ignitability plug, Ruthenium HX spark plugs come with patented, specialized OEM DFE and PSPE tip designs. NGK Ruthenium HX High Ignitability spark plugs provide a more complete fuel burn resulting in a quicker throttle response, smoother idle and better cold starts. Ruthenium center electrode provides industry leading durability.

Product Features:
  • HIGH IGNITABILITY DOUBLE FINE ELECTRODE DESIGN: Combines 0.6 millimeter ruthenium center with opposed fine wire platinum ground electrode
  • RUTHENIUM ALLOY CENTER ELECTRODE: NGK’s patented ruthenium technology produces maximum performance, ignitability & durability at high temperatures
  • PLATINUM PIN TYPE GROUND ELECTRODE: Provides more complete fuel burn, quicker throttle response, smoother idle and better cold starts
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
  • RECOMMENDED USAGE: Modern vehicles using OE DFE type spark plugs or for those seeking an aftermarket plug with the latest OE technology
  • Specialized OEM Tip Designs: Features patented DFE and PSPE tip designs for superior ignitability.
  • Industry-Leading Durability: Ruthenium center electrode ensures exceptional durability and longevity.
  • Advanced OE Technology: Created from advanced Original Equipment technology for modern vehicles.
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NGK – Laser Iridium Spark Plug (ILTR6E11): Fine Wire Tip for High Efficiency (Part No.90117)

Laser Iridium Spark Plug (ILTR6E11): Fine Wire Tip for High Efficiency

from

$21.49
NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center elect

Product Features:
  • ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction fine wire iridium alloy center electrode provides consistent performance
  • IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
  • PLATINUM TIP GROUND ELECTRODE: Unless OE specified, platinum protection at the ground electrode provides excellent ignitability and service life
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
  • RECOMMENDED USAGE: Best for vehicles with OE fine wire iridium alloy plugs
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Spark Plugs Brands You Can Trust For Your GMC Terrain

10 trusted brands of Spark Plugs line our shelves, ready to help keep your GMC Terrain running smooth. Below are some of the most popular brands and their top Spark Plugs offerings:

FAQs for GMC Terrain Spark Plugs

What are the most purchased Spark Plugs for the GMC Terrain?

Out of 41 Spark Plugs for the GMC Terrain, the most popular in our inventory are:
Iridium Spark Plug
from $12.99
(81)
Iridium Spark Plug
Spark Plugs

What are the top-rated GMC Terrain Spark Plugs?

Top-rated Spark Plugs for your GMC Terrain based on customer reviews/ratings are:
Platinum Power Spark Plug (RE10PMC5): Powerful Performance & Longevity
from $5.99
(49)
Platinum Power Spark Plug (RE10PMC5): Powerful Performance & Longevity
“This part works great for my car”
Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition
from $10.99
(40)
Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition
“I cannot comment if it will last 100K miles. I just installed them. However, like most things, I suspect it will be less. They do work right out of th”