2015 Cadillac CTS Spark Plugs
Keep Your 2015 Cadillac CTS in Top Shape with Quality Spark Plugs
Whether you’re repairing or upgrading your Spark Plug, using high-quality parts is key to keeping your 2015 Cadillac CTS looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Racing Spark Plugs, Spark Plug Tube Seals, and Spark Plugs. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.
Top-Rated Spark Plugs from Trusted Brands
Looking for a reliable Spark Plug? We’ve got you covered with options from brands you know and trust like NGK, Autolite, and ACDelco. For example, NGK Spark Plugs start at just $7.49 with an average 4.8 star rating. Autolite and ACDelco offer similar pricing and quality, backed by strong customer feedback. With over 3,654 reviews and a solid 4.4 star average, you can shop with confidence knowing other Cadillac CTS owners approve.
Competitive Prices and Extensive Inventory
The average price for a 2015 Cadillac CTS Spark Plug at Advance Auto Parts is around $15.45, with a range that starts at $4.79 and goes up to $55.99. With 51 options in stock from 11 trusted brands, finding the right fit is easy. Popular picks like E3 DiamondFIRE Automotive Spark Plug: More Power, Saves Gas, E3.74, NGK V-Power Nickel Spark Plug (TR6): Reliable Performance & Ignitability, 4177, and E3 DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency, E3.54 start at just $7.49 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Spark Plug, don’t forget to check out other key components like Ignition Boots and Ignition Coils and Boots. At Advance Auto Parts, we’re here to help you keep your 2015 Cadillac CTS in peak condition, inside and out.
Find Your Specific 2015 Cadillac CTS Spark Plugs
Looking for the perfect Spark Plug for your 2015 Cadillac CTS? You’re in the right place. Below, you’ll find links to various types of Spark Plugs that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Spark Plugs, ensuring durability and a precise fit for your Cadillac CTS. Whether you’re driving a 2015 model or another popular model year like
2010,
2011,
2012,
2013,
2014,
2016,
2017,
2018, and
2019, we’ve got you covered. Purchasing Spark Plugs from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Spark Plugs that fit your vehicle.
Essential 2015 Cadillac CTS Spark Plugs
DENSO – DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, ITV20TT, 4719 (Part No.4719)
from
$14.99
Durability of an OE style plug combined with Power & Torque of high performance.
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ACDelco – ACDelco RAPIDFIRE Spark Plug, 17 (Part No.17)
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.
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Autolite – Autolite Copper Resistor Spark Plug: Quick Starts & Enhanced Reliability, 5245 (Part No.5245)
from
$4.49
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.
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ACDelco – ACDelco RAPIDFIRE Spark Plug, 6 (Part No.6)
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.
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DENSO – DENSO Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, ITV16, 5338 (Part No.5338)
from
$14.49
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.
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Champion – Champion Copper Plus Spark Plug RS12YC – Dependable Performance & Durability, 401 (Part No.401)
from
$4.19
Champion Copper Plus spark plugs deliver dependable ignition performance with proven copper-core technology. The copper core electrode provides excellent conductivity and optimized heat control for consistent sparks while the coated shell protects against corrosion. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.
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Bosch – Bosch OE Fine Wire Double Iridium Spark Plug: High Performance & Longevity, 9602 (Part No.9602)
from
$12.49
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.
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Melling – Melling Stock Replacement Spark Plug Tube, MSPT-4 (Part No.MSPT-4)
from
$11.99
Made In USA. Melling provides spark plug tubes for both domestic and import vehicle applications. Each spark plug tube is manufactured from high quality material to assure the correct fit and function throughout the engines service life. Melling recommends new spark plug tubes with every engine rebuild where they are required.
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Victor Reinz – Victor Reinz Spark Plug Tube Seal Set, 18-10035-01 (Part No.18-10035-01)
from
$55.99
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.
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Felpro – Felpro Spark Plug Tube Seal Set, ES 72393 (Part No.ES 72393)
from
$53.99
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.
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GM Genuine Parts – GM Genuine Parts Spark Plug Wire Heat Shield, 8006 (Part No.8006)
from
$8.99
GM Genuine Parts Spark Plug Heat Shields are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).
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Popular 2015 Cadillac CTS Spark Plugs Categories
Most Popular Racing Spark Plug for 2015 Cadillac CTSs
Enhance your 2015 Cadillac CTS with this popular Racing Spark Plug we have in stock, for $14.99.
DENSO – DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, ITV20TT, 4719 (Part No.4719)
from
$14.99
Durability of an OE style plug combined with Power & Torque of high performance.
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Best-Selling 2015 Cadillac CTS Spark Plug Tube Seals
Upgrade your CTS with one of our 2 best-selling Spark Plug Tube Seals, earning an average 2 stars rating across 1 reviews.
Felpro – Felpro Spark Plug Tube Seal Set, ES 72393 (Part No.ES 72393)
from
$53.99
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.
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Victor Reinz – Victor Reinz Spark Plug Tube Seal Set, 18-10035-01 (Part No.18-10035-01)
from
$55.99
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.
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Top-Quality Spark Plugs for 2015 Cadillac CTSs
Choose a high-quality OEM or aftermarket Spark Plug for Cadillac CTSs and enjoy top-notch performance from $4.79.
ACDelco – ACDelco Iridium Spark Plug, 41-109 (Part No.41-109)
from
$13.49
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.
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NGK – NGK V-Power Nickel Spark Plug (TR6): Reliable Performance & Ignitability, 4177 (Part No.4177)
from
$7.49
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.
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Autolite – Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP5863 (Part No.APP5863)
from
$7.49
The Double Platinum Spark Plug is engineered for exceptional durability and performance, making it a top choice for distributor-less ignition system (DIS) engines. Featuring a platinum-to-platinum design, it minimizes gap erosion and reduces misfires, ensuring a longer service life compared to copper and standard platinum plugs. Its yttrium-enhanced ground electrode delivers superior heat transfer, providing unmatched durability under high temperatures and pressure. The high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for reliable operation. With a mid-projection center electrode and tapered seat type, this performance-grade spark plug is designed to meet demanding engine requirements. Both the center and ground electrode tips are crafted from platinum, ensuring consistent ignition and enhanced efficiency. Whether you’re seeking improved durability or superior performance, this spark plug delivers value and reliability for your engine’s needs.
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Bosch – Bosch OE Fine Wire Double Iridium Spark Plug: High Performance & Longevity, 9602 (Part No.9602)
from
$12.49
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.
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NGK – NGK Laser Iridium Spark Plug (ILTR6E11): Fine Wire Tip for High Efficiency, 90117 (Part No.90117)
from
$21.99
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.
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NGK – NGK Ruthenium HX Spark Plug (LTR7BHX): High Ignitability & Durability, 95605 (Part No.95605)
from
$18.99
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.
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Autolite – Autolite Platinum Spark Plug: Improved Performance & Durability, AP5243 (Part No.AP5243)
from
$5.49
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, better acceleration, and enhanced fuel efficiency. The platinum firing tip prevents gap erosion, extending the service life, while the high alumina ceramic insulator offers excellent thermal conductivity and insulation for added strength. A multi-rib insulator design prevents flash-over, ensuring reliable operation, and the nickel-plated shell resists corrosion for long-lasting durability. With a long projection center electrode and 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.
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ACDelco – ACDelco Double Platinum Spark Plug, 41-810 (Part No.41-810)
from
$11.49
ACDelco Professional Double Platinum Spark Plugs are premium aftermarket plugs, and are a high quality replacement for many vehicles on the road today. 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.
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Champion – Champion Copper Plus Spark Plug RS9YC – Dependable Performance & Durability, 304 (Part No.304)
from
$4.79
Champion Copper Plus spark plugs deliver dependable ignition performance with proven copper-core technology. The copper core electrode provides excellent conductivity and optimized heat control for consistent sparks while the coated shell protects against corrosion. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.
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DENSO – DENSO Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IT20, 5326 (Part No.5326)
from
$14.49
The Iridium Power Spark Plug features the world’s smallest Iridium Center Electrode at just 0.4mm, delivering enhanced spark energy for maximum combustion efficiency. Engineered with a patented 360-degree laser welding assembly process, this spark plug ensures unmatched durability and precision. Its U-groove and taper-cut ground electrode design optimizes flame propagation, resulting in improved engine performance. Built to withstand extreme temperatures exceeding 4000 degrees Fahrenheit, it is burnished with nickel plating for exceptional high-temperature endurance and superior corrosion resistance. Designed for versatility, it offers a wide range of part numbers to fit thousands of applications, including classic and collector cars. With its advanced Iridium tip material and tapered seat type, this spark plug is the ultimate choice for drivers seeking peak performance and long-lasting reliability.
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NGK – NGK G-Power Spark Plug (TR6GP): Enhanced Durability & Fuel Efficiency, 5141 (Part No.5141)
from
$8.99
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.
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Autolite – Autolite Platinum Spark Plug: Enhanced Durability & Improved Performance, AP5263 (Part No.AP5263)
from
$5.49
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.
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E3 – E3 DiamondFIRE Automotive Spark Plug: More Power, Saves Gas, E3.74 (Part No.E3.74)
from
$8.49
The Spark Plugs are the product of years of fundamental research in the combustion field. The unique patented electrode configuration of these new The spark plugs increases the amount of combustion pressure created during each power stroke of an engine, which results in a marked increase in power output, fuel economy, and reduced emissions in all gasoline engines. E3.74 is a 14mm, 1.000 reach plug with a taper seat. It fits a wide variety of late model applications, especially Ford applications. The automotive plugs have three legs securing the Diamond FIRE electrode to the shell. This allows for excellent heat transfer, and helps to create more turbulence in the cylinder. The patented Diamond FIRE side wire is proven to increase power, reduce fuel consumption and improve hydrocarbon emissions in long-term use.
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Autolite Iridium – Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP5263 (Part No.XP5263)
from
$11.49
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance.
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Autolite – Autolite Double Platinum Spark Plug: Enhanced Durability & Longer Service Life, APP5263 (Part No.APP5263)
from
$7.49
Double Platinum Spark Plug: Enhanced Durability & Longer Service Life is engineered for peak performance and reliability. Featuring a platinum-to-platinum design, it minimizes gap erosion and reduces misfires, ensuring consistent ignition and extended service life. The yttrium-enhanced ground electrode offers superior heat transfer, making it highly durable under extreme temperatures and pressure. Its high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for added safety. Designed with a mid-projection standard center electrode and tapered seat type, this spark plug is tailored for performance-grade applications. Both the center and ground electrode tips are crafted from platinum, delivering enhanced durability and efficiency. Ideal for distributor-less ignition system (DIS) engines, it outperforms copper and standard platinum plugs, making it a valuable upgrade for those seeking reliability and longevity in their ignition system.
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Autolite Iridium – Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP5863 (Part No.XP5863)
from
$11.49
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance.
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ACDelco – ACDelco RAPIDFIRE Spark Plug, 17 (Part No.17)
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.
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DENSO – DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IT20TT, 4714 (Part No.4714)
from
$15.49
Durability of an OE style plug combined with Power & Torque of high performance.
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E3 – E3 DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency, E3.54 (Part No.E3.54)
from
$8.49
“The Premium DiamondFire Automotive Spark Plug is engineered to deliver peak performance and efficiency for your vehicle. Featuring E3’s patented Diamond Fire edge-to-edge ground electrode, it ensures a faster, more complete burn for smoother acceleration and idle. The innovative “”diamond-shaped”” side wire electrode enhances combustion by quickly igniting the air/fuel mixture, resulting in a larger flame kernel and improved power output – up to 6% on average. This advanced design not only boosts energy but also promotes fuel savings and reduces engine carbon deposits for a cleaner, more efficient operation. Constructed with durable nickel center and ground electrode tips, it offers long-lasting reliability. The tapered seat type ensures a secure fit, and the pre-gapped design eliminates the need for adjustments, making installation hassle-free. Upgrade to this spark plug for enhanced performance, better fuel economy, and a cleaner engine.”
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NGK – NGK Iridium IX Spark Plug (TR6IX): Extreme Ignitability & Durability, 3689 (Part No.3689)
from
$16.99
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.
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Bosch – Bosch OE Fine Wire Double Iridium Spark Plug: High Performance & Longevity, 9616 (Part No.9616)
from
$39.99
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.
See More
Champion – Champion Platinum Power Spark Plug RS10PYC4 – Powerful Performance & Longevity, 3401 (Part No.3401)
from
$5.89
Champion Platinum Power spark plugs deliver powerful performance with the exclusive Premium alloy that reaches and sustains the correct operating temperature. A fine-wire center electrode and V-trimmed ground electrode provides sharp spark focus and reliable ignition for consistent combustion under demanding conditions. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.
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ACDelco – ACDelco Iridium Spark Plug, 41-988 (Part No.41-988)
from
$13.49
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.
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NGK – NGK Iridium IX Spark Plug (LTR6IX-11): Extreme Ignitability & Durability, 6509 (Part No.6509)
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.
See More
Autolite Iridium – Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP5243 (Part No.XP5243)
from
$11.49
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance.
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Autolite Iridium – Autolite Iridium Iridium Ultra Fine Wire Spark Plug: Laser Welded for Optimum Performance, AI5263 (Part No.AI5263)
from
$11.49
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.
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NGK – NGK Ruthenium HX Spark Plug (LTR6BHX): High Ignitability & Durability, 90495 (Part No.90495)
from
$15.99
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.
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DENSO – DENSO Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, ITV20, 5339 (Part No.5339)
Autolite Iridium – Autolite Iridium Iridium Ultra Fine Wire Spark Plug: Superior Durability & Performance, AI5863 (Part No.AI5863)
from
$11.49
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.
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NGK – NGK Ruthenium HX Spark Plug (LTR6AHX): High Ignitability & Durability, 91276 (Part No.91276)
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.
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ACDelco – ACDelco Iridium Spark Plug, 41-104 (Part No.41-104)
from
$13.49
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.
See More
NGK – NGK Iridium IX Spark Plug (LTR6IX): Extreme Ignitability & Durability, 94374 (Part No.94374)
from
$15.99
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.
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ACDelco – ACDelco Double Platinum Spark Plug, 41-814 (Part No.41-814)
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$11.49
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.
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ACDelco – ACDelco Iridium Spark Plug: Reliable Cold Starting & Smooth Performance, 41-125 (Part No.41-125)
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$14.49
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.
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Autolite – Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP5243 (Part No.APP5243)
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$7.49
Double Platinum Spark Plug: Enhanced Durability & Performance is engineered to deliver exceptional reliability and efficiency for distributor-less ignition system (DIS) engines. Featuring a platinum-to-platinum design, it minimizes gap erosion and reduces misfires, ensuring a longer service life compared to copper and standard platinum plugs. The yttrium-enhanced ground electrode offers superior heat transfer, making it highly durable under extreme temperatures and pressure. Its high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for consistent performance. With a long projection center electrode and tapered seat type, this performance-grade spark plug is designed to meet the demands of modern engines. Both the center and ground electrode tips are crafted from platinum, ensuring maximum durability and efficiency. Whether you’re seeking improved ignition reliability or extended plug life, this spark plug delivers unmatched value and performance.
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DENSO – DENSO Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, ITV22, 5340 (Part No.5340)
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$12.99
The Iridium Power Spark Plug features the world’s smallest Iridium Center Electrode at just 0.4mm, delivering enhanced spark energy for maximum combustion efficiency. Engineered with a patented 360-degree laser welding assembly process, it ensures exceptional durability and precision. The U-groove and taper-cut ground electrode design optimizes flame propagation, improving overall engine performance. Built to withstand extreme temperatures exceeding 4000 degrees Fahrenheit, this spark plug is burnished with nickel plating for superior corrosion resistance and high-temperature endurance. Its iridium tip material guarantees long-lasting reliability, making it ideal for a wide range of applications, including classic and collector cars. Designed with a tapered seat type, this spark plug offers a perfect fit and seamless installation. Choose this advanced spark plug for unmatched performance, durability, and compatibility across thousands of vehicle models.
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Champion – Champion Platinum Power Spark Plug RES8PYB5 – Powerful Performance & Longevity, 3017 (Part No.3017)
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$5.89
Champion Platinum Power spark plugs deliver powerful performance with the exclusive Premium alloy that reaches and sustains the correct operating temperature. A fine-wire center electrode and V-trimmed ground electrode provides sharp spark focus and reliable ignition for consistent combustion under demanding conditions. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.
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NGK – NGK G-Power Spark Plug (LTR6GP): Enhanced Durability & Fuel Efficiency, 90198 (Part No.90198)
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$8.99
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.
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NGK – NGK G-Power Platinum Spark Plug (LTR6GP-8): Enhanced Durability & Efficiency, 94372 (Part No.94372)
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$9.99
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.
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NGK – NGK Laser Platinum Spark Plug (PLTR6A-10G): Enhanced Ignitability & Longevity, 3587 (Part No.3587)
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$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.
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ACDelco – ACDelco Iridium Spark Plug, 41-147 (Part No.41-147)
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$12.49
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.
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Champion – Champion Iridium Spark Plug RES8WYPB4 – Maximum Performance & Longevity, 9299 (Part No.9299)
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$10.99
Champion Iridium spark plugs combine a fine-wire iridium center with platinum ground electrodes to help any engine achieve top performance, regardless of ignition type. This advanced design ensures precise ignition, long-lasting durability and reliable performance mile after mile, while reducing wear and tear. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.
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Champion – Champion Iridium Spark Plug RES9WYPB4 – Maximum Performance & Longevity, 9901 (Part No.9901)
from
$10.49
Champion Iridium spark plugs combine a fine-wire iridium center with platinum ground electrodes to help any engine achieve top performance, regardless of ignition type. This advanced design ensures precise ignition, long-lasting durability and reliable performance mile after mile, while reducing wear and tear. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.
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Champion – Champion Iridium Spark Plug RES8WYPB3 – Maximum Performance & Longevity, 9016 (Part No.9016)
from
$9.99
Champion Iridium spark plugs combine a fine-wire iridium center with platinum ground electrodes to help any engine achieve top performance, regardless of ignition type. This advanced design ensures precise ignition, long-lasting durability and reliable performance mile after mile, while reducing wear and tear. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.
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ACDelco – ACDelco RAPIDFIRE Spark Plug, 8 (Part No.8)
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$6.99
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.
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Champion – Champion Double Platinum Power Spark Plug RS9PYP4 – Enhanced Durability & Performance, 7304 (Part No.7304)
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$6.99
Champion Double Platinum Power spark plugs combine a platinum fine-wire center electrode with platinum center and ground electrodes and exclusive Heat-Active alloy, ensuring powerful performance, longer service life and precise spark focus for optimal combustion. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.
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Our Top Pick for a 2015 Cadillac CTS Spark Plug Heat Shield
Invest in a
durable Spark Plug Heat Shield for your 2015 Cadillac, knowing you’re getting trusted brands and expert craftsmanship.
GM Genuine Parts – GM Genuine Parts Spark Plug Wire Heat Shield, 8006 (Part No.8006)
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$8.99
GM Genuine Parts Spark Plug Heat Shields are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).
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Our Spark Plug Tubes for 2015 Cadillac CTSs
Make a smart move for your 2015 Cadillac CTS with our Spark Plug Tube for $11.99.
Melling – Melling Stock Replacement Spark Plug Tube, MSPT-4 (Part No.MSPT-4)
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$11.99
Made In USA. Melling provides spark plug tubes for both domestic and import vehicle applications. Each spark plug tube is manufactured from high quality material to assure the correct fit and function throughout the engines service life. Melling recommends new spark plug tubes with every engine rebuild where they are required.
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Top-Rated Spark Plug Brands For Your 2015 Cadillac CTS
When it comes to finding the perfect Spark Plug for your 2015 Cadillac CTS, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 11 trusted brands. We carry the most popular Spark Plug brands including NGK, ACDelco, and Autolite, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $5.49. Purchasing a Spark Plug from us here at Advance Auto Parts is a smart move for both you and your 2015 Cadillac CTS, providing peace of mind with parts that meet or exceed OEM standards.
Popular NGK 2015 Cadillac CTS Spark Plugs
If you’re looking for a top-quality Spark Plug for your 2015 Cadillac CTS, Advance Auto Parts has exactly what you need with our selection of NGK Spark Plugs. We have 3 NGK Spark Plugs in stock for this fitment, all known for their durability and precision fit. With prices starting at just $7.49 and an average cost of $16.16, you’ll find the perfect Spark Plug for your needs and budget. NGK Spark Plugs for the 2015 Cadillac CTS come highly rated, with over 43 customer reviews and an impressive average rating of 4.8 stars. Choosing a NGK Spark Plug from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
from
$18.99
(1)
NGK Ruthenium HX Spark Plug (LTR7BHX): High Ignitability & Durability, 95605
“I got these for my 2019 Mustang Ecoboost and these were way better spark plugs then anything i have tried definitely a performance oriented, spark plu”
from
$7.49
(37)
NGK V-Power Nickel Spark Plug (TR6): Reliable Performance & Ignitability, 4177
“I’ve been using these NGK V-power spark plugs in a supercharged 4th gen. Trans Am for over the last 12-14 years. They work out perfectly with no issu”
from
$21.99
(5)
NGK Laser Iridium Spark Plug (ILTR6E11): Fine Wire Tip for High Efficiency, 90117
“Yes are great”
Top-Quality ACDelco 2015 Cadillac CTS Spark Plugs
For those in search of a high-quality Spark Plug for their 2015 Cadillac CTS, Advance Auto Parts offers a great selection of ACDelco Spark Plugs. With 3 ACDelco Spark Plugs in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Spark Plugs start at just $7.99, with an average price of $10.99, giving you a range of options to suit your budget. Backed by over 112 customer ratings and an average rating of 4.7 stars, ACDelco Spark Plugs provide both reliability and excellent performance. Choosing a ACDelco Spark Plug from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
from
$13.49
(81)
ACDelco Iridium Spark Plug, 41-109
“They seem to give me like new performance and easy installation”
from
$7.99
(10)
ACDelco RAPIDFIRE Spark Plug, 17
“Great deals and perfect for the car make that I have”
FAQs for 2015 Cadillac CTS Spark Plugs
What are the best-selling Spark Plugs for 2015 Cadillac CTSs?
Out of 51 Spark Plugs that fit 2015 Cadillac CTSs, the following parts are the top sellers:
- E3 DiamondFIRE Automotive Spark Plug: More Power, Saves Gas, E3.74 (11333297) – $8.49
- NGK V-Power Nickel Spark Plug (TR6): Reliable Performance & Ignitability, 4177 (19650164) – $7.49
- E3 DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency, E3.54 (15650140) – $8.49
What’s the price range for 2015 Cadillac CTS Spark Plugs?
The prices of Spark Plugs for the 2015 Cadillac CTS range from $4.79 up to $55.99 for the most premium parts.
What is the average price of a Spark Plug for a 2015 Cadillac CTS?
The average price for Spark Plugs for the 2015 Cadillac CTS is $15.45. Keep in mind the variety of part types within our Spark Plug category, where you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Spark Plugs for other Cadillac CTS model years?
What are the cheapest Spark Plugs for my 2015 Cadillac CTS?
The cheapest 2015 Cadillac CTS Spark Plugs we carry are:
- Champion Copper Plus Spark Plug RS9YC – Dependable Performance & Durability, 304 (89011734) – $4.79
- Autolite Platinum Spark Plug: Enhanced Durability & Improved Performance, AP5263 (15650224) – $5.49
- Autolite Platinum Spark Plug: Improved Performance & Durability, AP5243 (12013890) – $5.49
- Champion Platinum Power Spark Plug RS10PYC4 – Powerful Performance & Longevity, 3401 (5470036) – $5.89
- Champion Platinum Power Spark Plug RES8PYB5 – Powerful Performance & Longevity, 3017 (11979456) – $5.89
Does Advance Auto Parts sell Spark Plugs for any other 2015 Cadillac models?
Yes. We stock Spark Plugs for 5 other popular 2015 Cadillac models. Some of the most popular are 2015 Escalade Spark Plugs, 2015 Escalade ESV Spark Plugs, 2015 SRX Spark Plugs, 2015 XTS Spark Plugs, and 2015 ATS Spark Plugs.
What are the top-rated Spark Plugs that fit the 2015 Cadillac CTS?
Based on 3,654 reviews by customers, our 2015 Cadillac CTS Spark Plugs have an average customer rating of 4.4 stars. These are the highest-rated categories of Spark Plugs for the 2015 Cadillac CTS and their top-rated products:
- Spark Plugs
- ACDelco Iridium Spark Plug, 41-109 (10838402) – $13.49
- Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP5863 (11469055) – $7.49
- Champion Copper Plus Spark Plug RS9YC – Dependable Performance & Durability, 304 (89011734) – $4.79
- Racing Spark Plugs
- Spark Plug Tube Seals
- Felpro Spark Plug Tube Seal Set, ES 72393 (10854511) – $53.99
What types of Spark Plugs do you sell for my 2015 Cadillac CTS?
As of 8/2/26, these are some of the most in-demand types of Spark Plugs for a 2015 Cadillac CTS:
Can I get help with 2015 Cadillac CTS Spark Plug orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Cadillac Spark Plugs and more.
What is your return policy for Cadillac CTS Spark Plugs?
Advance Auto Parts keeps returns simple. For new Cadillac CTS Spark Plugs and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.