Chevrolet Trailblazer Ext Spark Plugs

Your One-Stop Shop For Trusted Chevrolet Trailblazer Ext Spark Plugs

If you’re in search of Chevrolet Trailblazer Ext Spark Plugs aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 48 Spark Plugs from top brands with prices ranging from $2.99 to $29.99.

Beyond great prices, we stock trusted brands manufacturing all types of Spark Plugs for your Chevrolet Trailblazer Ext.

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 Chevrolet Trailblazer Ext Spark Plugs below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential Chevrolet Trailblazer Ext Spark Plugs

GM Genuine Parts – Spark Plug Wire Heat Shield (Part No.8006)

Spark Plug Wire Heat Shield

from

$8.99
ACDelco GM Original Equipment Spark Plug Heat Shields help protect the spark plug insulator and plug wire boot from the heat of the exhaust manifold, and are GM-recommended replacements for your vehicle’s original components. These original equipment heat shields have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Helps protect spark plug boot from cracking and deteriorating from heat
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
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DENSO – Iridium Long-Life Spark Plug: OE Performance, ZTJ16VR10 (Part No.3539)

Iridium Long-Life Spark Plug: OE Performance, ZTJ16VR10

from

$10.99
The Iridium Long-Life Spark Plug is engineered to meet the highest OE standards for performance, durability, and emissions, making it a reliable choice for your vehicle. Featuring DENSO’s patented Iridium Alloy with a fine wire center electrode, this spark plug delivers sustained spark performance for over 100,000 miles, lasting up to three times longer than conventional plugs. Its platinum ground electrode ensures extended life, while the 360-degree laser welding process guarantees a robust bond and structural strength. Designed to endure extreme temperatures exceeding 4,000 degrees Fahrenheit, it is ideal for high-performance ignition systems and special fuel setups. With a tapered seat type and iridium center electrode tip material, this spark plug offers exceptional durability and efficiency, providing long-lasting value for your vehicle’s ignition system.

Product Features:
  • Latest OE technology with DENSO’s patented Iridium Alloy (90 percent Ir) and fine wire center electrode
  • Platinum ground electrode for extended life
  • DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
  • Sustained spark performance over 100,000 miles
  • Lasts up to three times as long as conventional plugs
  • Endures extreme temperatures greater than 4,000 degrees F associated with high-performance ignition and special fuel systems
  • Iridium Long Life
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NGK – V-Power Nickel Spark Plug (TR5): Enhanced Ignitability & Reliability (Part No.2238)

V-Power Nickel Spark Plug (TR5): Enhanced Ignitability & Reliability

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$5.99
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.

Product Features:
  • ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode with V-groove provides consistent performance
  • RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
  • NGK’s OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric 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
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
  • Enhanced Ignitability: The V-cut nickel alloy center electrode and concave ground electrode design of NGK V-Power spark plugs provide quicker starts and smoother idle.
  • OE Application Specific: Engineered specifically for Original Equipment (OE) applications, ensuring compatibility and reliable performance.
  • V-Groove Tip Design: The unique V-groove tip design of the center electrode enhances ignitability and overall engine performance.
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Champion – Copper Plus Spark Plug (RS12YC): Dependable Performance & Durability (Part No.401)

Copper Plus Spark Plug (RS12YC): Dependable Performance & Durability

from

$2.99
The Copper Plus Spark Plug delivers dependable performance and durability, making it a reliable choice for maintaining optimal engine function. Featuring a copper core center electrode, it ensures enhanced conductivity and precise heat control, promoting good overall wear and extending the spark plug’s lifespan. Built to ISO and SAE Standards, this spark plug guarantees proven performance and superior corrosion resistance, even in demanding conditions. Its nickel center electrode tip and tapered seat design further enhance reliability and engine efficiency, making it an excellent standard replacement option. With a resistor type design and robust materials, this spark plug is engineered to provide consistent ignition and long-lasting durability, ensuring your vehicle runs smoothly mile after mile.

Product Features:
  • Copper Plus – Dependable Performance and Durability
  • Copper core center electrode allows for accurate control of heat range for longer life
  • Superior corrosion resistance
  • Built to ISO and SAE standards for proven performance
  • Built to ISO and SAE standards for proven performance
  • Enhanced Conductivity and Heat Control: The Champion Copper Plus Spark Plug features a copper core electrode that provides increased conductivity and heat control, ensuring good overall wear and extending the spark plug’s life.
  • Reliable Nickel Center Electrode Tip: Featuring a nickel center electrode tip and a tapered seat type, this spark plug enhances reliability and ensures optimal engine performance.
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DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IT16TT (Part No.4713)

Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IT16TT

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 standout choice for drivers seeking reliability and efficiency. Featuring a 0.4mm Iridium center electrode – the world’s smallest diameter – it maximizes firing potential, while the 0.7mm needle tip ground electrode promotes higher 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, withstanding temperatures over 4000 Deg F. The advanced Twin-Tip Technology pairs a fine wire Iridium center electrode with a needle tip Platinum ground electrode, ensuring superior ignition and fuel efficiency. Designed to enhance fuel economy and reduce emissions, this spark plug allows you to drive farther with fewer stops. Developed to original equipment specifications and utilizing a 360-degree laser welding process, it guarantees exceptional structural strength and consistent performance. Perfect for those who demand endurance and power in every drive.

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
  • Advanced Twin-Tip Technology: Combines a Fine Wire Iridium Center Electrode with a Needle Tip Platinum Ground Electrode for superior ignition and efficiency.
  • Enhanced Fuel Economy and Lower Emissions: Designed to provide better fuel economy and reduced emissions, allowing you to drive around the Earth over 4 times.
  • Original Equipment Specification: Developed from the Super Ignition Plug (SIP) design, ensuring reliable and consistent performance.
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Champion – Iridium Spark Plug (RS12WMPB4): Maximum Performance & Longevity (Part No.9405)

Iridium Spark Plug (RS12WMPB4): Maximum Performance & Longevity

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$11.99
The Champion Iridium Spark Plug is engineered for maximum performance and durability, making it the ultimate choice for high-performance engines. Featuring a fine-wire iridium center electrode and a platinum-enhanced ground electrode, this premium spark plug ensures sharper spark focus and greater ignitability for optimal engine efficiency. Its V-trimmed ground electrode design promotes precise spark delivery, while the Heat-Active alloy allows the electrodes to quickly reach and maintain stable operating temperatures under all engine loads. Built with a tapered seat and a resistor type design, this spark plug is crafted to deliver consistent performance and extended service life. Whether you’re looking to enhance your vehicle’s ignition system or maintain peak engine performance, the Champion Iridium Spark Plug offers unmatched reliability and value.

Product Features:
  • Champion Iridium – Maximum Performance. Premium Spark Plug
  • Iridium center electrode delivers maximum life
  • Fine-wire center electrode and V-trimmed for greater ignitability
  • V-trimmed ground electrode promotes sharper spark focus
  • Maintains stable operating temperature under all engine loads
  • Heat-Active alloy allows electrodes to reach optimal temperature quickly
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NGK – Laser Platinum Spark Plug (PTR5D-10): Enhanced Ignitability & Longevity (Part No.3784)

Laser Platinum Spark Plug (PTR5D-10): Enhanced Ignitability & Longevity

from

$20.99
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
  • Engineered for OE Applications: Specifically designed for Original Equipment (OE) applications, ensuring a perfect fit and optimal performance.
  • 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 – Laser Iridium Spark Plug (IZTR5B11): Fine Wire Tip for Efficiency (Part No.1465)

Laser Iridium Spark Plug (IZTR5B11): Fine Wire Tip for Efficiency

from

$20.99
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 and reliability.
  • OE Application Specific: Engineered specifically for Original Equipment (OE) applications, ensuring a perfect fit and optimal performance.
  • Fine Wire Tip Design: The fine wire tip design of the IZTR5B11 model enhances ignition efficiency and performance.
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Champion – Double Platinum Power Spark Plug (RES11PYPB5): Enhanced Durability & Performance (Part No.7437)

Double Platinum Power Spark Plug (RES11PYPB5): Enhanced Durability & Performance

from

$6.99
The Champion Double Platinum Power spark plug is engineered for enhanced durability and performance, making it a premium choice for reliable ignition. Featuring a fine-wire platinum center electrode and a platinum pad ground electrode, this spark plug ensures greater wear resistance and sharper spark focus for consistent power delivery. The innovative Heat-Active alloy allows the electrodes to maintain optimal operating temperatures under all engine loads, ensuring stable performance in demanding conditions. Its V-trimmed ground electrode design promotes precise spark focus, while the resistor type construction minimizes electrical interference. Designed as a standard replacement with a tapered seat type, this spark plug offers seamless compatibility and easy installation. Whether you’re seeking improved ignitability or long-lasting performance, this spark plug delivers exceptional value and reliability for your vehicle.

Product Features:
  • Double Platinum Power – Premium Spark Plug. More Powerful Performance.
  • Platinum center and ground electrode for greater wear resistance
  • Maintains stable operating temperature under all engine loads
  • Fine-wire center electrode for greater ignitability
  • V-trimmed ground electrode promotes sharper spark focus
  • Heat-Active alloy allows electrodes to reach optimal temperature
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DENSO – Double Platinum Spark Plug: OE Performance, lasts 60K+ Miles, PT16VR13 (Part No.5068)

Double Platinum Spark Plug: OE Performance, lasts 60K+ Miles, PT16VR13

from

$13.49
Double Platinum Spark Plug PT16VR13 is engineered to meet the highest OE performance, durability, and emissions standards, ensuring optimal compatibility and efficiency for your vehicle. Featuring OE-grade platinum on both the center and ground electrodes, this spark plug delivers sustained spark performance for over 60,000 miles, reducing secondary required voltage and boosting ignition efficiency. Its premium shell construction with machine-rolled threads enhances durability, while superior thermal conductivity ensures reliable operation under demanding conditions. Designed with a tapered seat type, it provides a secure fit and improved combustion efficiency, making it a trusted choice for reducing shop comebacks and satisfying customers. Built for long-lasting performance, this double platinum spark plug is the ideal solution for maintaining your vehicle’s peak performance.

Product Features:
  • OE grade platinum on both center and ground electrodes
  • Premium shell construction with machine-rolled threads
  • Superior thermal conductivity
  • Sustained spark performance over 60,000 miles
  • Reduced secondary required voltage, increased ignition efficiency
  • Satisfied customers, reduced shop comebacks
  • Double Platinum
  • OE Performance: Designed to meet original equipment (OE) performance standards for optimal vehicle compatibility and efficiency.
  • Tapered Seat Type: Equipped with a tapered seat type for a secure fit and improved combustion efficiency.
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DENSO – Iridium Long-Life Spark Plug: OE Performance, ZTJ16R10 (Part No.5090)

Iridium Long-Life Spark Plug: OE Performance, ZTJ16R10

from

$12.99
Engineered to meet the highest OE standards for performance, durability, and emissions, this Iridium Long-Life Spark Plug is a game-changer for your vehicle’s ignition system. Featuring DENSO’s patented Iridium Alloy with a 90% Iridium fine wire center electrode and a platinum ground electrode, it delivers exceptional spark performance for over 100,000 miles – lasting up to three times longer than conventional plugs. The 360-degree laser welding process ensures a robust bond and structural integrity, even under extreme conditions exceeding 4,000 Deg F. Designed for enhanced engine performance, it provides more horsepower, quicker starts, and fewer misfires, even under heavy loads. Additionally, its advanced technology promotes better fuel efficiency, helping you save on fuel costs while maintaining optimal engine performance. With a tapered seat type and premium materials, this spark plug is built to endure and deliver consistent results, making it a reliable choice for long-lasting performance.

Product Features:
  • Latest OE technology with DENSO’s patented Iridium Alloy (90 percent Ir) and fine wire center electrode
  • Platinum ground electrode for extended life
  • DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
  • Sustained spark performance over 100,000 miles
  • Lasts up to three times as long as conventional plugs
  • Endures extreme temperatures greater than 4,000 degrees F associated with high-performance ignition and special fuel systems
  • Iridium Long Life
  • Enhanced Engine Performance: Enjoy more horsepower, faster and easier starts, and fewer misfires under heavy loads, thanks to the advanced properties of DENSO’s Iridium alloy.
  • Fuel Efficiency: Experience better conservation of fuel at all times, contributing to overall improved engine efficiency.
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Autolite – Copper Resistor Spark Plug: Quick Starts & Enhanced Reliability (Part No.5245)

Copper Resistor Spark Plug: Quick Starts & Enhanced Reliability

from

$3.99
Autolite Copper spark plugs are designed to provide reliable performance and meet the demands of your vehicle with precision engineering. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, ensuring consistent operation. The high nickel alloy center and ground electrodes deliver extended life, while the high alumina multi-rib ceramic insulator enhances thermal conductivity and insulation for added strength. With a nickel-plated shell, these spark plugs resist corrosion, offering long-lasting durability. Engineered for quick starts, they improve your vehicle’s reliability and performance, while optimizing fuel efficiency to help you save on costs. The long projection center electrode and tapered seat design ensure a secure fit and smooth operation. Experience smoother acceleration and a more responsive driving experience with Autolite Copper spark plugs, a dependable choice for maintaining excellent engine performance.

Product Features:
  • The copper core center electrode aids in thermal control and improves resistance to fouling.
  • Its specially engineered high nickel alloy center and ground electrode provides extended life.
  • The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
  • Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
  • Quick Starts: The Autolite Copper Spark Plug ensures quick engine starts, enhancing your vehicle’s reliability and performance.
  • Good Fuel Economy: Designed to optimize fuel efficiency, these spark plugs help you save on fuel costs while maintaining excellent engine performance.
  • Smooth Acceleration: Experience smoother acceleration with the high-quality engineering of Autolite Copper Spark Plugs, providing a more responsive driving experience.
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DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, ITL16TT (Part No.4717)

Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, ITL16TT

from

$18.99
Experience the perfect blend of durability and high performance with this Iridium TT Spark Plug. Engineered with a 0.4mm Iridium Center Electrode – the world’s smallest diameter – it maximizes firing potential for unmatched ignition efficiency. The 0.7mm Needle Tip Ground Electrode enhances spark energy while minimizing heat quenching, ensuring consistent performance. Built with DENSO’s patented Iridium-Rhodium alloy formula, this spark plug boasts the highest concentration of iridium for exceptional durability, withstanding temperatures over 4000 Deg F. Its advanced 360-degree laser welding process guarantees a robust bond and structural integrity. Designed for ultimate endurance, it delivers over 100,000 miles of reliable performance while improving fuel economy and reducing emissions. The innovative Twin-Tip Technology combines a fine-wire Iridium Center Electrode with a Needle Tip Platinum Ground Electrode, offering OE-style reliability with the added power and torque of a high-performance plug. Featuring a tapered seat type and premium materials, this spark plug is the ideal choice for drivers seeking long-lasting quality and enhanced engine efficiency.

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
  • Ultimate Endurance and Power: The DENSO Iridium TT Spark Plug features a 0.7mm Iridium Tip, ensuring over 100,000 miles of uncompromised performance.
  • Advanced Twin-Tip Technology: Developed from Original Equipment Specification Super Ignition Plug (SIP) design, combining a Fine Wire Iridium Center Electrode with a Needle Tip Platinum Ground Electrode.
  • Enhanced Fuel Economy and Lower Emissions: Drive around the Earth over 4 times with improved fuel efficiency and reduced emissions.
  • Premium Materials: Features an Iridium Center Electrode Tip and a Tapered Seat Type for optimal performance and durability.
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GM Genuine Parts – Specific FitSpark Plug Wire (Part No.356E)

Specific FitSpark Plug Wire

from

$29.99
ACDelco GM Original Equipment Spark Plug Wires consist of a single wire, encased in an insulating material, connectors, and insulating boots, and are GM-recommended replacements for your vehicle’s original components. The wires transfer high voltage pulses between the voltage source, the distributor, and the spark plug. These original equipment wires have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Durable to help transfer high voltage pulses without damage
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
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Spark Plugs Brands You Can Trust For Your Chevrolet Trailblazer Ext

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

Popular Champion Spark Plugs

Champion products for the Chevrolet Trailblazer Ext span several categories. Some of the highest-rated Champion Spark Plugs that will fit your Chevrolet Trailblazer Ext are:

Top Chevrolet Trailblazer Ext Spark Plugs from Autolite

Your Chevrolet Trailblazer Ext will be purring again thanks to Autolite brand Spark Plugs available for online order or in-store pick up. Popular Autolite parts include:

Most Purchased Chevrolet Trailblazer Ext Spark Plugs from ACDelco

When you buy the most frequently purchased ACDelco brand Spark Plugs, you can be confident it will be the right part for your Chevrolet Trailblazer Ext. Here are the ACDelco Spark Plugs Advanced Auto customers buy the most:
Iridium Spark Plug: Reliable Cold Starting & Smooth Performance
from $13.49
This product is not rated
Iridium Spark Plug: Reliable Cold Starting & Smooth Performance
Spark Plugs
Iridium Spark Plug: Reliable Cold Starting & Smooth Performance
from $12.99
This product is not rated
Iridium Spark Plug: Reliable Cold Starting & Smooth Performance
Spark Plugs

FAQs for Chevrolet Trailblazer Ext Spark Plugs

What are the most purchased Spark Plugs for the Chevrolet Trailblazer Ext?

Out of 48 Spark Plugs for the Chevrolet Trailblazer Ext, the most popular in our inventory are:
Iridium Spark Plug: Reliable Cold Starting & Smooth Performance
from $13.49
This product is not rated
Iridium Spark Plug: Reliable Cold Starting & Smooth Performance
Spark Plugs

What are the top-rated Chevrolet Trailblazer Ext Spark Plugs?

Top-rated Spark Plugs for your Chevrolet Trailblazer Ext based on customer reviews/ratings are:
DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency
from $8.49
(184)
DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency
“Good, even fire, no miss spark plug”
DiamondFIRE Automotive Spark Plug: More Power, Saves Gas
from $8.49
(176)
DiamondFIRE Automotive Spark Plug: More Power, Saves Gas
“Professional help thank you!!!”