1975 Mercury Capri Spark Plugs

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Keep Your 1975 Mercury Capri 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 1975 Mercury Capri looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Spark Plug Non-Foulers 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 Autolite, Champion, and NGK. For example, Autolite Spark Plugs start at just $4.49 with an average 4.6 star rating. Champion and NGK offer similar pricing and quality, backed by strong customer feedback. With over 619 reviews and a solid 4.7 star average, you can shop with confidence knowing other Mercury Capri owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1975 Mercury Capri Spark Plug at Advance Auto Parts is around $8.33, with a range that starts at $3.29 and goes up to $21.99. With 23 options in stock from 6 trusted brands, finding the right fit is easy. Popular picks like Autolite Copper Resistor Spark Plug: Quick Starts & Smooth Acceleration, 65, ACDelco Conventional Spark Plug, R44LTS, and ACDelco Conventional Spark Plug, R44XLS start at just $4.49 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 Coils and Boots and Ignition Wires. At Advance Auto Parts, we’re here to help you keep your 1975 Mercury Capri in peak condition, inside and out.

Essential 1975 Mercury Capri Spark Plugs

Champion – Champion Copper Plus Spark Plug RS14YC – Dependable Performance & Durability, 408 (Part No.408)

Champion Copper Plus Spark Plug RS14YC - Dependable Performance & Durability, 408

from

$3.29
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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Autolite – Autolite Copper Resistor Spark Plug: Quick Starts & Enhanced Durability, 46 (Part No.46)

Autolite Copper Resistor Spark Plug: Quick Starts & Enhanced Durability, 46

from

$4.79
Autolite Copper spark plugs are designed to deliver reliable performance, ensuring quick starts and the power your vehicle demands. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, while the high nickel alloy center and ground electrodes provide extended life. The high alumina multi-rib ceramic insulator enhances thermal conductivity and insulation, offering increased strength and durability. With a nickel-plated shell, these spark plugs resist corrosion for long-lasting performance. Engineered for optimal fuel economy, they help improve mileage while delivering smooth and responsive acceleration. Compliant with Original Equipment Service (OES) design Standards, they ensure dependable operation and a secure fit with their tapered seat type. The long projection center electrode and nickel tip materials further enhance their efficiency and reliability, making them a valuable addition to your vehicle’s ignition system.
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Motorcraft – Motorcraft Spark Plug: Reliable Ignition & Nickel Durability, SP-425-X (Part No.SP-425-X)

Motorcraft Spark Plug: Reliable Ignition & Nickel Durability, SP-425-X

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$6.49
The spark plug is designed to deliver reliable ignition performance with its standard center electrode design, ensuring consistent and efficient combustion in your engine. Crafted with nickel for both the center and ground electrode tips, this spark plug offers excellent durability and resistance to wear, making it a dependable choice for long-term use. Its tapered seat type ensures a secure fit, enhancing the overall performance and compatibility with a wide range of vehicles. Built to withstand demanding conditions, this spark plug provides exceptional value by optimizing engine efficiency and contributing to smoother operation.
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Motorcraft – Motorcraft Platinum Spark Plug: Enhances Durability & Reduces Misfires, SP-502 (Part No.SP-502)

Motorcraft Platinum Spark Plug: Enhances Durability & Reduces Misfires, SP-502

from

$6.99
Engineered to meet strict Ford engineering standards, these spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption, and optimize emissions. With a platinum center electrode tip and nickel ground electrode tip, they are resistant to oxidation and arc erosion. The multi-rib insulator protects against misfire, ensuring reliable performance for up to 100,000 miles. Backed by Motorcraft’s Service Parts Warranty, these spark plugs are an exact fit for Ford, Lincoln, and Mercury vehicles, and help prevent false check engine lights. Designed with high-quality materials, Motorcraft spark plugs deliver original equipment performance and reliability for a broad range of applications, including domestic and import cars and trucks of all makes and sizes.
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Motorcraft – Motorcraft Standard Spark Plug (AWSF44CA): Reliable Performance & Durability, SP-409-A (Part No.SP-409-A)

Motorcraft Standard Spark Plug (AWSF44CA): Reliable Performance & Durability, SP-409-A

from

$5.29
Standard Spark Plug (AWSF44CA) delivers reliable performance and durability, making it the ideal choice for maintaining your vehicle’s original equipment standards. Engineered specifically for Ford, Lincoln, and Mercury vehicles, these spark plugs ensure an exact fit while enhancing durability, reducing misfires, optimizing emissions, and improving fuel efficiency. Resistant to oxidation and arc erosion, they are built with high-quality materials to withstand demanding conditions and provide service intervals of up to 100,000 miles. The multi-rib insulator design protects against misfires, while Motorcraft ignition components help prevent false check engine lights, offering peace of mind and confidence in your vehicle’s performance. Backed by Motorcraft’s Service Parts Warranty, these spark plugs are the same trusted components found in your vehicle at the time of manufacture, ensuring compatibility and reliability for a broad range of applications, including domestic and import cars and trucks.
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Motorcraft – Motorcraft Standard Spark Plug (AGSF32CA): Reliable Performance & Durability, SP-447-A (Part No.SP-447-A)

Motorcraft Standard Spark Plug (AGSF32CA): Reliable Performance & Durability, SP-447-A

from

$4.99
Standard Spark Plug (AGSF32CA) delivers reliable performance and durability, making it the ideal choice for maintaining your vehicle’s original equipment standards. Specifically engineered for Ford, Lincoln, and Mercury vehicles, these spark plugs ensure an exact fit while enhancing engine durability, reducing misfires, optimizing emissions, and improving fuel efficiency. Built with high-quality materials, they resist oxidation and arc erosion, ensuring long-lasting performance with service intervals of up to 100,000 miles. The multi-rib insulator design protects against misfires, while Motorcraft ignition components help prevent false check engine lights, giving you confidence in your vehicle’s operation. Backed by Motorcraft’s Service Parts Warranty, these spark plugs are the same trusted components found in your vehicle at the time of manufacture, offering unmatched reliability for a broad range of domestic and import cars and trucks. Whether you’re maintaining or upgrading, these spark plugs deliver the performance and dependability you need.
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Motorcraft – Motorcraft Spark Plug: Reliable Ignition with Nickel Electrode Design, SP-447-X (Part No.SP-447-X)

Motorcraft Spark Plug: Reliable Ignition with Nickel Electrode Design, SP-447-X

from

$5.29
This spark plug is engineered for reliable ignition performance, featuring a standard center electrode design and durable nickel construction for both the center and ground electrode tips. The nickel material ensures excellent conductivity and resistance to wear, making it a dependable choice for maintaining consistent engine performance. Its tapered seat type provides a secure fit, enhancing the overall efficiency of the ignition system. Designed to deliver long-lasting durability and optimal functionality, this spark plug is a cost-effective solution for keeping your vehicle running smoothly. Whether you’re replacing a worn-out plug or performing routine maintenance, this high-quality component ensures dependable starts and efficient combustion.
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Autolite – Autolite Copper Resistor Spark Plug: Quick Starts & Enhanced Durability, 766 (Part No.766)

Autolite Copper Resistor Spark Plug: Quick Starts & Enhanced Durability, 766

from

$3.99
Autolite Copper spark plugs are crafted to ensure reliable performance and durability for your vehicle or application. 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 are designed for extended life, while the mid-projection center electrode enhances ignition efficiency. Built with a high alumina multi-rib ceramic insulator, these plugs offer superior thermal conductivity and insulation, boosting strength and reliability. The nickel-plated shell resists corrosion, making it ideal for long-term use. With a tapered seat type and integrated resistor, these spark plugs deliver quick starts and meet performance expectations, offering excellent value for regular-grade applications.
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Motorcraft – Motorcraft Platinum Spark Plug: Enhances Durability & Reduces Fuel Consumption, SP-493 (Part No.SP-493)

Motorcraft Platinum Spark Plug: Enhances Durability & Reduces Fuel Consumption, SP-493

from

$9.29
Motorcraft Spark Plugs are original equipment on Ford Motor Company vehicles, engineered to meet strict Ford engineering standards for performance and reliability. These spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption, and optimize emissions. Backed by Motorcraft’s Service Parts Warranty, they are an exact fit for Ford, Lincoln, and Mercury vehicles and are resistant to oxidation and arc erosion. The multi-rib insulator protects against misfire, and with service intervals of up to 100,000 miles, these spark plugs are designed with high-quality materials to provide reliable performance for almost any application. Motorcraft Spark Plugs are what was in the vehicle when it was manufactured, and their ignition components help prevent false check engine lights. Featuring platinum center and ground electrode tips, these spark plugs deliver the performance, reliability, and confidence you expect.
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NGK – NGK Laser Platinum Spark Plug (PFR6G-11): Superior Ignitability & Longevity, 5555 (Part No.5555)

NGK Laser Platinum Spark Plug (PFR6G-11): Superior Ignitability & Longevity, 5555

from

$23.99
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 Conventional Spark Plug, R43XLS (Part No.R43XLS)

ACDelco Conventional Spark Plug, R43XLS

from

$6.49
ACDelco GM Original Equipment Conventional Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. 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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E3 – E3 DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency, E3.42 (Part No.E3.42)

E3 DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency, E3.42

from

$8.49
DiamondFire Automotive Spark Plug delivers exceptional performance and efficiency with its innovative Diamond Fire edge-to-edge ground electrode design. Engineered for smoother acceleration and idle, it ensures a faster, more complete burn of the fuel charge, maximizing pressure against the piston and putting more fuel to work. With power output improved by up to 6% on average, this spark plug enhances energy efficiency while reducing engine carbon deposits thanks to its patented Diamond Fire Technology. The unique diamond-shaped side wire electrode ignites the air/fuel mixture quickly, creating a larger flame kernel for optimal combustion. Crafted with durable nickel center and ground electrode tips, it offers long-lasting reliability. Pre-gapped at the factory for hassle-free installation, this tapered seat spark plug is a smart choice for drivers seeking improved fuel savings, cleaner engine performance, and enhanced power output.
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ACDelco – ACDelco Double Platinum Spark Plug, 41-800 (Part No.41-800)

ACDelco Double Platinum Spark Plug, 41-800

from

$11.49
ACDelco GM Original Equipment Double Platinum Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. ACDelco GM Original Equipment parts are the true OE parts installed during the production 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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Motorcraft – Motorcraft Standard Spark Plug (BSF82CA): Reliable Performance & Durability, SP-431-A (Part No.SP-431-A)

Motorcraft Standard Spark Plug (BSF82CA): Reliable Performance & Durability, SP-431-A

from

$4.79
Standard Spark Plug (BSF82CA) delivers reliable performance and durability, making it the ideal choice for maintaining your vehicle’s original equipment standards. Engineered specifically for Ford, Lincoln, and Mercury vehicles, these spark plugs ensure an exact fit while enhancing durability, reducing misfires, optimizing emissions, and improving fuel efficiency. Resistant to oxidation and arc erosion, they are built with high-quality materials to withstand demanding conditions and provide service intervals of up to 100,000 miles. The multi-rib insulator design protects against misfires, while Motorcraft ignition components help prevent false check engine lights, giving you confidence in your vehicle’s performance. Backed by Motorcraft’s Service Parts Warranty, these spark plugs are the same trusted components found in your vehicle at the time of manufacture, ensuring reliable performance for a wide range of domestic and import cars and trucks.
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Dorman – Help – Dorman – Help Spark Plug Non-Foulers – 14mm Tapered Seat, 42006 (Part No.42006)

Dorman - Help Spark Plug Non-Foulers - 14mm Tapered Seat, 42006

from

$8.49
This spark plug non fouler is designed for easy installation on specified vehicles to protect spark plugs from fouling and damage. It is engineered for durability and reliable performance.
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Dorman – Help – Dorman – Help Spark Plug Non-Foulers – 14mm Tapered Seat, 42008 (Part No.42008)

Dorman - Help Spark Plug Non-Foulers - 14mm Tapered Seat, 42008

from

$10.49
This spark plug non fouler is designed for easy installation on specified vehicles to protect spark plugs from fouling and damage. It is engineered for durability and reliable performance.
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Most Popular Spark Plug Non-Fouler for 1975 Mercury Capris

Enhance your 1975 Mercury Capri with this popular Spark Plug Non-Fouler we have in stock, for $10.49.

Dorman – Help – Dorman – Help Spark Plug Non-Foulers – 14mm Tapered Seat, 42008 (Part No.42008)

Dorman - Help Spark Plug Non-Foulers - 14mm Tapered Seat, 42008

from

$10.49
This spark plug non fouler is designed for easy installation on specified vehicles to protect spark plugs from fouling and damage. It is engineered for durability and reliable performance.
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Best-Selling 1975 Mercury Capri Spark Plugs

Upgrade your Capri with one of our 22 best-selling Spark Plugs, earning an average 4.69 stars rating across 608 reviews.

Autolite – Autolite Copper Resistor Spark Plug: Quick Starts & Smooth Acceleration, 65 (Part No.65)

Autolite Copper Resistor Spark Plug: Quick Starts & Smooth Acceleration, 65

from

$4.49
Autolite Copper spark plugs are expertly crafted to ensure your vehicle delivers reliable performance with every start. Featuring a copper core center electrode, these plugs excel in thermal control and resist fouling, while the high nickel alloy center and ground electrodes provide extended durability. The high alumina multi-rib ceramic insulator enhances thermal conductivity and insulation, offering superior strength under demanding conditions. Designed with a corrosion-resistant nickel-plated shell, these spark plugs are built to last. Their mid-projection center electrode and flat seat type ensure optimal compatibility, while the resistor design minimizes electrical interference. Engineered for quick starts, smooth acceleration, and enhanced fuel economy, these spark plugs are a dependable choice for maintaining your vehicle’s efficiency and performance.
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ACDelco – ACDelco Conventional Spark Plug, R44XLS (Part No.R44XLS)

ACDelco Conventional Spark Plug, R44XLS

from

$5.99
ACDelco Gold (Professional) Conventional Spark Plugs are a high quality alternative to Original Equipment (OE) parts. These Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. 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 Platinum Spark Plug: Enhanced Durability & Improved Performance, AP65 (Part No.AP65)

Autolite Platinum Spark Plug: Enhanced Durability & Improved Performance, AP65

from

$5.49
Platinum Spark Plug: Enhanced Durability & Improved Performance is crafted with a platinum center electrode firing tip that ensures quicker firing, smoother starts, and better acceleration while boosting fuel efficiency. Engineered with a platinum firing tip to prevent gap erosion, it offers a longer service life, making it ideal for older engine applications. The high alumina ceramic insulator enhances thermal conductivity and insulation, providing superior strength, while the multi-rib design prevents flash-over for reliable performance. Its nickel-plated shell resists corrosion, ensuring extended durability even in demanding conditions. Featuring a mid-projection standard center electrode design and a flat seat type, this performance-grade spark plug is backed by over 100 years of engineering expertise and a legacy of more than 11 billion plugs sold. Designed in the USA, it combines advanced materials like platinum and nickel to deliver consistent reliability and value for your vehicle.
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Autolite – Autolite Copper Resistor Spark Plug: Quick Starts & Reliable Performance, 106 (Part No.106)

Autolite Copper Resistor Spark Plug: Quick Starts & Reliable Performance, 106

from

$4.79
Autolite Copper spark plugs are designed to provide reliable performance and quick starts, making them an essential upgrade for your vehicle. 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 enhance durability, while the high alumina multi-rib ceramic insulator boosts thermal conductivity and insulation strength. With a corrosion-resistant nickel-plated shell, these spark plugs are built to last, even under demanding conditions. Their design optimizes fuel economy, helping you achieve better mileage, and ensures smooth, responsive acceleration for an improved driving experience. Compliant with Original Equipment Service (OES) Standards, they deliver dependable performance and a secure fit with their tapered seat type. Equipped with a mid-projection standard center electrode and nickel tip materials, these spark plugs are a reliable choice for maintaining your vehicle’s efficiency and power.
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Autolite – Autolite Platinum Spark Plug (AP106): Enhanced Durability & Performance (Part No.AP106)

Autolite Platinum Spark Plug (AP106): Enhanced Durability & Performance

from

$4.99
The Platinum Spark Plug (AP106) is expertly crafted to deliver enhanced durability and performance for older engine applications. Featuring a platinum center electrode firing tip, it ensures quicker firing, smoother starts, and improved fuel efficiency while preventing gap erosion for a longer service life. Its high alumina ceramic insulator provides superior thermal conductivity and insulation, boosting strength and reliability under demanding conditions. The multi-rib insulator design effectively prevents flash-over, while the nickel-plated shell offers exceptional corrosion resistance, extending the plug’s lifespan. With a mid-projection center electrode and tapered seat type, this performance-grade spark plug is built to optimize engine functionality. The combination of platinum and nickel materials ensures consistent ignition and durability, making it a dependable choice for drivers seeking improved acceleration and long-term value.
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Champion – Champion Copper Plus Spark Plug RS14YC – Dependable Performance & Durability, 408 (Part No.408)

Champion Copper Plus Spark Plug RS14YC - Dependable Performance & Durability, 408

from

$3.29
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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NGK – NGK Laser Platinum Spark Plug (PTR5F-11): Enhanced Fuel Efficiency & Durability, 6579 (Part No.6579)

NGK Laser Platinum Spark Plug (PTR5F-11): Enhanced Fuel Efficiency & Durability, 6579

from

$21.99
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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Champion – Champion Iridium Spark Plug RS14WYPB5 – Maximum Performance & Longevity, 9404 (Part No.9404)

Champion Iridium Spark Plug RS14WYPB5 - Maximum Performance & Longevity, 9404

from

$11.49
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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NGK – NGK V-Power Nickel Spark Plug (TR5): Enhanced Ignitability & Reliability, 2238 (Part No.2238)

NGK V-Power Nickel Spark Plug (TR5): Enhanced Ignitability & Reliability, 2238

from

$6.49
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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NGK – NGK G-Power Spark Plug (TR5GP): Enhanced Durability & Fuel Efficiency, 3186 (Part No.3186)

NGK G-Power Spark Plug (TR5GP): Enhanced Durability & Fuel Efficiency, 3186

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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NGK – NGK Iridium IX Spark Plug (TR5IX): Extreme Ignitability & Durability, 7397 (Part No.7397)

NGK Iridium IX Spark Plug (TR5IX): Extreme Ignitability & Durability, 7397

from

$14.99
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 Conventional Spark Plug, R44LTS (Part No.R44LTS)

ACDelco Conventional Spark Plug, R44LTS

from

$6.49
ACDelco Professional Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function.
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E3 – E3 DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency, E3.44 (Part No.E3.44)

E3 DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency, E3.44

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. E3.44 is a 14mm, 0.708 reach plug with a taper seat. It fits domestic applications from the mid-90s. 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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Champion – Champion Double Platinum Power Spark Plug RS14PYPB5 – Enhanced Durability & Performance, 7940 (Part No.7940)

Champion Double Platinum Power Spark Plug RS14PYPB5 - Enhanced Durability & Performance, 7940

from

$8.89
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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E3 – DiamondFire Spark Plug (E3.46): Enhanced Power & Fuel Efficiency (Part No.E3.46)

DiamondFire Spark Plug (E3.46): Enhanced Power & Fuel Efficiency

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. E3.46 is a 14mm, 0.750 reach plug with a gasket seat. It fits a wide variety of applications from the 60s to early 90s, especially import. E3.46 is widely stocked in automotive retail stores. 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 – Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP106 (Part No.APP106)

Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP106

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, allowing it to withstand high temperatures and pressures for extended durability. 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 deliver consistent ignition and efficiency. Both the center and ground electrode tips are crafted from platinum, ensuring robust functionality and reliability. Ideal for those seeking enhanced engine performance and longevity, this spark plug is built to meet the demands of modern engines.
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ACDelco – ACDelco Double Platinum Spark Plug, 41-948 (Part No.41-948)

ACDelco Double Platinum Spark Plug, 41-948

from

$11.49
ACDelco GM Original Equipment Double Platinum Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. ACDelco GM Original Equipment parts are the true OE parts installed during the production 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, APP65 (Part No.APP65)

Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP65

from

$7.49
Double Platinum Spark Plug offers enhanced durability and performance with its platinum-to-platinum design, effectively reducing gap erosion and minimizing misfires for a longer service life. Engineered for distributor-less ignition system (DIS) engines, it outperforms copper and standard platinum plugs. The yttrium-enhanced ground electrode ensures superior heat transfer, maintaining durability under high temperatures and pressure. Its high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for reliable operation. Featuring a mid-projection center electrode and flat seat type, this performance-grade spark plug is built with platinum-tipped electrodes for consistent ignition and lasting reliability. Designed to deliver exceptional value, it is a dependable choice for maintaining peak engine performance.
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ACDelco – ACDelco RAPIDFIRE Spark Plug, 3 (Part No.3)

ACDelco RAPIDFIRE Spark Plug, 3

from

$5.79
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 Platinum Power Spark Plug RS10PYC – Powerful Performance & Longevity, 3408 (Part No.3408)

Champion Platinum Power Spark Plug RS10PYC - Powerful Performance & Longevity, 3408

from

$6.49
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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Autolite Iridium – Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP106 (Part No.XP106)

Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP106

from

$9.49
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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Champion – Champion Double Platinum Spark Plug (RS14PYPB): Powerful Performance & Durability, 7408 (Part No.7408)

Champion Double Platinum Spark Plug (RS14PYPB): Powerful Performance & Durability, 7408

from

$5.29
The Double Platinum Spark Plug is engineered for drivers seeking enhanced performance and durability. Featuring Champion’s Double Platinum Power technology, this premium spark plug is designed to deliver more powerful performance with exceptional wear resistance. Its platinum fine-wire center electrode and platinum pad ground electrode ensure greater ignitability and a sharper spark focus, promoting efficient combustion and improved engine response. The V-trimmed ground electrode further enhances spark precision, while the exclusive Heat-Active alloy maintains stable operating temperatures under all engine loads, ensuring consistent performance and longevity. Ideal for those who demand reliability and peak performance, this spark plug is built to withstand the rigors of daily driving while maximizing engine efficiency.
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Top-Rated Spark Plug Brands For Your 1975 Mercury Capri

When it comes to finding the perfect Spark Plug for your 1975 Mercury Capri, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 6 trusted brands. We carry the most popular Spark Plug brands including Champion, NGK, and Autolite, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $3.29. Purchasing a Spark Plug from us here at Advance Auto Parts is a smart move for both you and your 1975 Mercury Capri, providing peace of mind with parts that meet or exceed OEM standards.

Popular Champion 1975 Mercury Capri Spark Plugs

If you’re looking for a top-quality Spark Plug for your 1975 Mercury Capri, Advance Auto Parts has exactly what you need with our selection of Champion Spark Plugs. We have 3 Champion Spark Plugs in stock for this fitment, all known for their durability and precision fit. With prices starting at just $3.29 and an average cost of $7.89, you’ll find the perfect Spark Plug for your needs and budget. Champion Spark Plugs for the 1975 Mercury Capri come highly rated, with over 7 customer reviews and an impressive average rating of 4.8 stars. Choosing a Champion Spark Plug from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Champion Double Platinum Power Spark Plug RS14PYPB5 - Enhanced Durability & Performance, 7940
from $8.89
(4)
Champion Double Platinum Power Spark Plug RS14PYPB5 – Enhanced Durability & Performance, 7940
“Good people, good parts, good price, good times!”
Champion Iridium Spark Plug RS14WYPB5 - Maximum Performance & Longevity, 9404
from $11.49
(2)
Champion Iridium Spark Plug RS14WYPB5 – Maximum Performance & Longevity, 9404
“These plugs are the best and If you gap them right you will notice improvement in everything. Be sure on all plug that are Iridium do not gap the plug”

Top-Quality NGK 1975 Mercury Capri Spark Plugs

For those in search of a high-quality Spark Plug for their 1975 Mercury Capri, Advance Auto Parts offers a great selection of NGK Spark Plugs. With 3 NGK 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 $6.49, with an average price of $12.49, giving you a range of options to suit your budget. Backed by over 346 customer ratings and an average rating of 4.8 stars, NGK Spark Plugs provide both reliability and excellent performance. Choosing a NGK Spark Plug from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

FAQs for 1975 Mercury Capri Spark Plugs

What are the best-selling Spark Plugs for 1975 Mercury Capris?

Out of 23 Spark Plugs that fit 1975 Mercury Capris, the following parts are the top sellers:

What’s the price range for 1975 Mercury Capri Spark Plugs?

The prices of Spark Plugs for the 1975 Mercury Capri range from $3.29 up to $21.99 for the most premium parts.

What is the average price of a Spark Plug for a 1975 Mercury Capri?

The average price for Spark Plugs for the 1975 Mercury Capri is $8.33. 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 Mercury Capri model years?

Yes, we carry Spark Plugs for 21 model years of Mercury Capris between 1966 and 1994. The following model years are the most popular for Spark Plug purchases: 1994, 1993, 1992, 1991, 1986, 1985, 1984, 1983, and 1982.

Does Advance Auto Parts sell Spark Plugs for any other 1975 Mercury models?

Yes. We stock Spark Plugs for 6 other popular 1975 Mercury models. Some of the most popular are 1975 Cougar Spark Plugs, 1975 Grand Marquis Spark Plugs, 1975 Montego Spark Plugs, 1975 Marquis Spark Plugs, and 1975 Comet Spark Plugs.

What are the top-rated Spark Plugs that fit the 1975 Mercury Capri?

Based on 619 reviews by customers, our 1975 Mercury Capri Spark Plugs have an average customer rating of 4.7 stars. These are the highest-rated categories of Spark Plugs for the 1975 Mercury Capri and their top-rated products:

What types of Spark Plugs do you sell for my 1975 Mercury Capri?

As of 8/2/26, these are some of the most in-demand types of Spark Plugs for a 1975 Mercury Capri:

Can I get help with 1975 Mercury Capri Spark Plug orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Mercury Spark Plugs and more.

What is your return policy for Mercury Capri Spark Plugs?

Advance Auto Parts keeps returns simple. For new Mercury Capri Spark Plugs and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.