1971 Ford Bronco Spark Plugs

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Keep Your 1971 Ford Bronco 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 1971 Ford Bronco looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including 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 Accel, Motorcraft, and Autolite. For example, Accel Spark Plugs start at just $56.19 with an average 4.1 star rating. Motorcraft and Autolite offer similar pricing and quality, backed by strong customer feedback. With over 492 reviews and a solid 4.7 star average, you can shop with confidence knowing other Ford Bronco owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1971 Ford Bronco Spark Plug at Advance Auto Parts is around $14.68, with a range that starts at $1.25 and goes up to $67.49. With 20 options in stock from 8 trusted brands, finding the right fit is easy. Popular picks like NGK V-Power Nickel Spark Plug (WR5): Reliable Performance & Quick Starts, 2438, Autolite Copper Resistor Spark Plug: Quick Starts & Enhanced Durability, 46, and Motorcraft Standard Spark Plug: Enhances Durability & Reduces Misfires, SP-415-A start at just $3.99 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 1971 Ford Bronco in peak condition, inside and out.

Essential 1971 Ford Bronco Spark Plugs

Autolite – Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP5125 (Part No.APP5125)

Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP5125

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, maintaining 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 an extra-long projection center electrode and tapered seat type, this performance-grade spark plug is built to deliver consistent ignition and efficiency. Both the center and ground electrode tips are crafted from platinum, ensuring lasting quality and precision. Designed to meet the demands of modern engines, this spark plug offers unmatched reliability and value for your vehicle.
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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

from

$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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NGK – NGK G-Power Platinum Spark Plug (UR4GP): Enhanced Durability & Efficiency, 2869 (Part No.2869)

NGK G-Power Platinum Spark Plug (UR4GP): Enhanced Durability & Efficiency, 2869

from

$6.99
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 Double Platinum Spark Plug: Enhanced Durability & Performance, APP24 (Part No.APP24)

Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP24

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 built to deliver consistent ignition and efficiency. Both the center and ground electrode tips are crafted from platinum, ensuring superior conductivity and longevity. Designed to meet the demands of modern engines, this spark plug offers unmatched value and reliability for drivers seeking enhanced engine performance.
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DENSO – DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, ITF20TT, 4716 (Part No.4716)

DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, ITF20TT, 4716

from

$15.49
The Iridium TT Spark Plug combines the durability of an OE-style plug with the unmatched power and torque of high-performance engineering. Featuring a 0.4mm Iridium center electrode – the world’s smallest diameter – it maximizes firing potential for superior ignition. The 0.7mm needle tip ground electrode enhances spark energy while reducing heat quenching, ensuring consistent performance. Built with DENSO’s patented Iridium-Rhodium alloy formula, this spark plug boasts the highest concentration of Iridium among competitors, delivering exceptional durability and reliability. The 360-degree laser welding process guarantees a robust bond and structural integrity, even under extreme conditions. Designed to withstand temperatures exceeding 4000 Deg F, this plug is engineered for endurance and peak performance. Its tapered seat type ensures a secure fit, making it a perfect choice for those seeking long-lasting, high-performance ignition solutions.
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NGK – NGK Standard Nickel Spark Plug (AR6FS): Reliable OE Performance, 3323 (Part No.3323)

NGK Standard Nickel Spark Plug (AR6FS): Reliable OE Performance, 3323

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$7.99
NGK Standard spark plugs (in the iconic NGK ‘yellow box’ packaging) are a proven OE cornerstone and technology customers have relied on for decades. Engineered specifically for OE applications, NGK Standard spark plugs provide OE quality nickel alloy reliable performance and design. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance, while triple gasket sealing prevents combustion gas leakage. Solid 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.
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ACDelco – ACDelco Double Platinum Spark Plug, 41-817 (Part No.41-817)

ACDelco Double Platinum Spark Plug, 41-817

from

$11.99
ACDelco Gold (Professional) Double Platinum Spark Plug are a high quality alternative to Original Equipment (OE) parts. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.
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Autolite Iridium – Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP5362 (Part No.XP5362)

Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP5362

from

$10.49
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 XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP26 (Part No.XP26)

Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP26

from

$10.49
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 Double Platinum Spark Plug, 41-803 (Part No.41-803)

ACDelco Double Platinum Spark Plug, 41-803

from

$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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Accel – Accel HP Copper Spark Plug – 14mm Thread – .460 inReach – 8 Pack of 0576, 8179 (Part No.8179)

Accel HP Copper Spark Plug - 14mm Thread - .460 inReach - 8 Pack of 0576, 8179

from

$56.19
ACCEL HP Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL HP Spark Plugs are gapable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost applications. All ACCEL HP Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention.
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NGK – NGK V-Power Nickel Spark Plug (UR4): Enhanced Ignitability & Performance, 6630 (Part No.6630)

NGK V-Power Nickel Spark Plug (UR4): Enhanced Ignitability & Performance, 6630

from

$6.99
NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Engineered specifically for OE applications, the special V-cut nickel alloy center electrode and concave ground electrode of NGK’s V-Power spark plug increases ignitability providing quicker starts and smoother idle. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.
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Champion – Champion Double Platinum Power Spark Plug RV17PMP4 – Enhanced Durability & Performance, 7018 (Part No.7018)

Champion Double Platinum Power Spark Plug RV17PMP4 - Enhanced Durability & Performance, 7018

from

$7.49
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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ACDelco – ACDelco Copper Core Spark Plug: Reliable Performance & Durability, R43TS (Part No.R43TS)

ACDelco Copper Core Spark Plug: Reliable Performance & Durability, R43TS

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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Autolite – Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP26 (Part No.APP26)

Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP26

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 pressure 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 lasting value for your engine.
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NGK – NGK Iridium IX Spark Plug (UR5IX): Extreme Ignitability & Durability, 7177 (Part No.7177)

NGK Iridium IX Spark Plug (UR5IX): Extreme Ignitability & Durability, 7177

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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Motorcraft – Motorcraft Standard Spark Plug (ASF42CF4): Reliable Performance & Durability, SP-450-A (Part No.SP-450-A)

Motorcraft Standard Spark Plug (ASF42CF4): Reliable Performance & Durability, SP-450-A

from

$6.99
Standard Spark Plug (ASF42CF4) delivers reliable performance and durability, making it the ideal choice for maintaining your vehicle’s original efficiency. Engineered to meet strict Ford standards, these Motorcraft spark plugs are specifically matched to engines for enhanced durability, reduced fuel consumption, and optimized emissions. Designed with high-quality materials, they resist oxidation and arc erosion, ensuring long-lasting reliability with service intervals of up to 100,000 miles. The multi-rib insulator protects against misfires, while the exact fit guarantees seamless compatibility with Ford, Lincoln, and Mercury vehicles. Backed by Motorcraft’s Service Parts Warranty, these spark plugs help prevent false check engine lights, giving you confidence in their performance. Whether for domestic or import cars and trucks, Motorcraft spark plugs are the trusted choice for maintaining the original equipment standards your vehicle was built with.
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NGK – NGK G-Power Platinum Spark Plug (UR5GP): Enhanced Durability & Efficiency, 3547 (Part No.3547)

NGK G-Power Platinum Spark Plug (UR5GP): Enhanced Durability & Efficiency, 3547

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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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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Accel – Accel HP Copper Spark Plug – Shorty – 14mm Thread – .460 in Reach – Tapered Seat – 2 Pack of 0576S-4 (8 Spark Plugs), 8199 (Part No.8199)

Accel HP Copper Spark Plug - Shorty - 14mm Thread - .460 in Reach - Tapered Seat - 2 Pack of 0576S-4 (8 Spark Plugs), 8199

from

$59.99
ACCEL’s patented race proven spark plugs in a shorty configuration. The overall length has been reduced 3/16 in to 3/8 in (depending on the specific spark plug) to gain critical air gap between the spark plug boot and the exhaust manifold or header tube. This helps eliminate burning the spark plug boot or dimpling the header tube. The shorter spark plug length also can make it easier to install and remove the spark plugs in certain applications where there is not a lot of room to fit a socket or move a wrench around.
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Motorcraft – Motorcraft High-Performance Spark Plug: Enhances Fuel Efficiency, SP-420-X (Part No.SP-420-X)

Motorcraft High-Performance Spark Plug: Enhances Fuel Efficiency, SP-420-X

from

$4.99
This high-performance spark plug is meticulously crafted to elevate your engine’s efficiency and reliability. Featuring a standard center electrode design with durable nickel tips for both the center and ground electrodes, it ensures consistent and dependable ignition. Its advanced engineering optimizes combustion, leading to smoother engine performance, improved fuel efficiency, and reduced emissions – perfect for eco-conscious drivers. The tapered seat type enhances its fit and functionality, making it suitable for a wide range of vehicles. Built with precision manufacturing and long-lasting materials, this spark plug is ideal for both daily commutes and high-performance driving, offering exceptional value and durability for your vehicle’s needs.
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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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Autolite – Autolite Copper Resistor Spark Plug: Quick Starts & Enhanced Durability, 24 (Part No.24)

Autolite Copper Resistor Spark Plug: Quick Starts & Enhanced Durability, 24

from

$4.49
Autolite Copper spark plugs are crafted to deliver reliable performance and quick starts, ensuring your vehicle meets its power and efficiency needs. 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 and 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, even in harsh environments. With a mid-projection standard center electrode and tapered seat type, they ensure optimal compatibility and fit. Engineered for good fuel economy, they help optimize fuel efficiency, saving you money over time. Whether for regular-grade applications or vehicles requiring a resistor-type spark plug, Autolite Copper spark plugs deliver dependable performance and value.
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Autolite – Autolite Platinum Spark Plug (AP5125): Enhanced Durability & Performance (Part No.AP5125)

Autolite Platinum Spark Plug (AP5125): Enhanced Durability & Performance

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 improved fuel efficiency. The platinum firing tip prevents gap erosion, extending service life, while the high alumina ceramic insulator enhances thermal conductivity and insulation for added strength. Designed with a multi-rib insulator to prevent flash-over and a nickel-plated shell for corrosion resistance, these spark plugs deliver long-lasting reliability. The tapered seat type further boosts performance and durability, while the extra-long projection of the standard center electrode design ensures optimal ignition. With a performance-grade type and nickel ground electrode tip material, these spark plugs are built to meet demanding engine needs. Whether you’re seeking enhanced efficiency or extended durability, these spark plugs are a dependable choice for maintaining peak engine performance.
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Motorcraft – Motorcraft High-Performance Spark Plug: Enhances Fuel Economy & Smooth Acceleration, SP-415 (Part No.SP-415)

Motorcraft High-Performance Spark Plug: Enhances Fuel Economy & Smooth Acceleration, SP-415

from

$4.79
The Motorcraft high-performance spark plugs are engineered by Ford Motor Company to deliver exceptional quality and reliability. As the same parts installed when your engine first rolled off the assembly line, these spark plugs ensure a perfect fit and optimal performance. Designed with a tapered seat type, they provide quick starts, improved fuel economy, and smooth acceleration, making them a vital component for maintaining your vehicle’s peak efficiency. Whether you’re looking to restore factory performance or enhance your driving experience, these spark plugs are built to meet the highest standards set by Ford.
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Autolite – Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP45 (Part No.APP45)

Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP45

from

$6.49
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 long projection center electrode and tapered seat type, this performance-grade spark plug is built to handle demanding conditions. Both the center and ground electrode tips are crafted from platinum, ensuring consistent ignition and enhanced efficiency. Designed to deliver superior functionality and durability, this spark plug is an excellent investment for maintaining peak engine performance.
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Autolite Iridium – Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP25 (Part No.XP25)

Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP25

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 Platinum Spark Plug: Enhanced Durability & Improved Performance, AP46 (Part No.AP46)

Autolite Platinum Spark Plug: Enhanced Durability & Improved Performance, AP46

from

$5.49
Autolite Platinum spark plugs are crafted for exceptional 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 the service life, while the high alumina ceramic insulator provides superior thermal conductivity and insulation for added strength. A multi-rib insulator prevents flash-over, and the nickel-plated shell offers corrosion resistance for long-lasting reliability. Designed with a tapered seat type, these spark plugs enhance performance and durability, ensuring a consistent and powerful spark. With a long projection center electrode and a performance-grade design, Autolite Platinum spark plugs deliver reliable ignition and optimal engine efficiency, making them a valuable upgrade for maintaining peak engine performance.
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Most Popular Spark Plugs for 1971 Ford Broncos

Enhance your 1971 Ford Bronco with one of the 20 Spark Plugs we have in stock, starting at just $2.49.

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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NGK – NGK V-Power Nickel Spark Plug (WR5): Reliable Performance & Quick Starts, 2438 (Part No.2438)

NGK V-Power Nickel Spark Plug (WR5): Reliable Performance & Quick Starts, 2438

from

$6.99
NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Engineered specifically for OE applications, the special V-cut nickel alloy center electrode and concave ground electrode of NGK’s V-Power spark plug increases ignitability providing quicker starts and smoother idle. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.
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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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Accel – Accel HP Copper Spark Plug – Shorty – 14mm Thread – .460 in Reach – Tapered Seat – 2 Pack of 0576S-4 (8 Spark Plugs), 8199 (Part No.8199)

Accel HP Copper Spark Plug - Shorty - 14mm Thread - .460 in Reach - Tapered Seat - 2 Pack of 0576S-4 (8 Spark Plugs), 8199

from

$59.99
ACCEL’s patented race proven spark plugs in a shorty configuration. The overall length has been reduced 3/16 in to 3/8 in (depending on the specific spark plug) to gain critical air gap between the spark plug boot and the exhaust manifold or header tube. This helps eliminate burning the spark plug boot or dimpling the header tube. The shorter spark plug length also can make it easier to install and remove the spark plugs in certain applications where there is not a lot of room to fit a socket or move a wrench around.
See More

Dorman – Help – Dorman – Help Spark Plug Non-Foulers – 18mm Tapered Seat, 42002 (Part No.42002)

Dorman - Help Spark Plug Non-Foulers - 18mm Tapered Seat, 42002

from

$10.99
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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E3 – E3 DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency, E3.72 (Part No.E3.72)

E3 DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency, E3.72

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. E3.72 is an 18mm, 0.430 reach plug with a taper seat. It primarily fits Ford applications from the 50s to 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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Autolite – Autolite Copper Resistor Spark Plug: Quick Starts & Enhanced Durability, 124 (Part No.124)

Autolite Copper Resistor Spark Plug: Quick Starts & Enhanced Durability, 124

from

$4.49
Autolite Copper spark plugs are crafted to deliver reliable performance and quick starts, ensuring your vehicle meets its power demands with ease. 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 and durability. The high alumina multi-rib ceramic insulator enhances thermal conductivity and insulation, offering superior strength under demanding conditions. Designed with a nickel-plated shell, these spark plugs resist corrosion for long-lasting use. With a standard center electrode design, short projection, and nickel tip materials, they are built for regular-grade applications and include a resistor for optimized functionality. The tapered seat type ensures a secure fit, making these spark plugs a dependable choice for maintaining peak engine performance.
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Accel – Accel HP Copper Spark Plug – 14mm Thread – .460 inReach – 8 Pack of 0576, 8179 (Part No.8179)

Accel HP Copper Spark Plug - 14mm Thread - .460 inReach - 8 Pack of 0576, 8179

from

$56.19
ACCEL HP Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL HP Spark Plugs are gapable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost applications. All ACCEL HP Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention.
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Motorcraft – Motorcraft High-Performance Spark Plug: Enhances Fuel Economy & Smooth Acceleration, SP-415 (Part No.SP-415)

Motorcraft High-Performance Spark Plug: Enhances Fuel Economy & Smooth Acceleration, SP-415

from

$4.79
The Motorcraft high-performance spark plugs are engineered by Ford Motor Company to deliver exceptional quality and reliability. As the same parts installed when your engine first rolled off the assembly line, these spark plugs ensure a perfect fit and optimal performance. Designed with a tapered seat type, they provide quick starts, improved fuel economy, and smooth acceleration, making them a vital component for maintaining your vehicle’s peak efficiency. Whether you’re looking to restore factory performance or enhance your driving experience, these spark plugs are built to meet the highest standards set by Ford.
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Autolite – Autolite Platinum Spark Plug: Enhanced Durability & Improved Performance, AP46 (Part No.AP46)

Autolite Platinum Spark Plug: Enhanced Durability & Improved Performance, AP46

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$5.49
Autolite Platinum spark plugs are crafted for exceptional 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 the service life, while the high alumina ceramic insulator provides superior thermal conductivity and insulation for added strength. A multi-rib insulator prevents flash-over, and the nickel-plated shell offers corrosion resistance for long-lasting reliability. Designed with a tapered seat type, these spark plugs enhance performance and durability, ensuring a consistent and powerful spark. With a long projection center electrode and a performance-grade design, Autolite Platinum spark plugs deliver reliable ignition and optimal engine efficiency, making them a valuable upgrade for maintaining peak engine performance.
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Motorcraft – Motorcraft Standard Spark Plug: Enhances Durability & Reduces Misfires, SP-415-A (Part No.SP-415-A)

Motorcraft Standard Spark Plug: Enhances Durability & Reduces Misfires, SP-415-A

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$3.99
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. They are resistant to oxidation and arc erosion, feature a multi-rib insulator to protect against misfire, and offer service intervals of 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 are designed with high-quality materials to provide reliable performance for almost any application. Motorcraft ignition components also help prevent false check engine lights, ensuring your vehicle runs smoothly.
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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

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$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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Accel – Accel HP Copper Spark Plug – Shorty – 14mm Thread – .460 in Reach – Tapered Seat – 2 pack of 0574S-4, 8198 (Part No.8198)

Accel HP Copper Spark Plug - Shorty - 14mm Thread - .460 in Reach - Tapered Seat - 2 pack of 0574S-4, 8198

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$67.49
ACCEL’s patented race proven spark plugs in a Shorty configuration. The overall length has been reduced 3/16 in to 3/8 in (depending on the specific spark plug) to gain critical air gap between the spark plug boot and the exhaust manifold or header tube. This helps eliminate burning the spark plug boot or dimpling the header tube. The shorter spark plug length also can make it easier to install an remove the spark plugs in certain applications where there is not a lot of room to fit a socket or move a wrench around. ACCEL Shorty Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL Shorty Spark Plugs are gapable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost applications. All ACCEL Shorty Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention.
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ACDelco – ACDelco Conventional Spark Plug, R85TS (Part No.R85TS)

ACDelco Conventional Spark Plug, R85TS

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$4.29
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 the high quality replacements 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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Accel – Accel HP Copper Spark Plug – Shorty – 14mm Thread – .460 in Reach – Tapered Seat – 4 Pack, 0574S-4 (Part No.0574S-4)

Accel HP Copper Spark Plug - Shorty - 14mm Thread - .460 in Reach - Tapered Seat - 4 Pack, 0574S-4

from

$49.99
ACCEL’s patented race proven spark plugs in a Shorty configuration. The overall length has been reduced 3/16 in to 3/8 in (depending on the specific spark plug) to gain critical air gap between the spark plug boot and the exhaust manifold or header tube. This helps eliminate burning the spark plug boot or dimpling the header tube. The shorter spark plug length also can make it easier to install an remove the spark plugs in certain applications where there is not a lot of room to fit a socket or move a wrench around. ACCEL Shorty Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL Shorty Spark Plugs are gapable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost applications. All ACCEL Shorty Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention.
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Motorcraft – Motorcraft Spark Plug: Enhanced Durability & Optimized Performance, SP-502-X (Part No.SP-502-X)

Motorcraft Spark Plug: Enhanced Durability & Optimized Performance, SP-502-X

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$7.99
Spark Plug: Enhanced Durability & Optimized Performance is engineered to meet strict Ford standards, ensuring original equipment reliability and performance. Designed with a fine wire platinum center electrode and nickel ground electrode tip, these spark plugs deliver precise ignition while resisting oxidation and arc erosion. Perfectly matched to specific engines, they enhance durability, eliminate misfires, reduce fuel consumption, and optimize emissions. The multi-rib insulator protects against misfires, while service intervals of up to 100,000 miles provide long-lasting value. Backed by Motorcraft’s Service Parts Warranty, these spark plugs are an exact fit for Ford, Lincoln, and Mercury vehicles, making them the ideal choice for maintaining factory performance. Crafted with high-quality materials, they are suitable for a wide range of domestic and import cars and trucks, ensuring reliable performance and preventing false check engine lights. Motorcraft Spark Plugs are the trusted solution for drivers seeking confidence and efficiency in their ignition system.
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Motorcraft – Motorcraft Spark Plug: Enhanced Durability & Optimized Performance, SP-414-AX (Part No.SP-414-AX)

Motorcraft Spark Plug: Enhanced Durability & Optimized Performance, SP-414-AX

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$6.99
Enhanced durability and optimized performance define Motorcraft Spark Plugs, the original equipment for Ford, Lincoln, and Mercury vehicles. Engineered to meet strict Ford standards, these spark plugs ensure exact fitment and deliver reliable performance across a wide range of domestic and import cars and trucks. Designed with high-quality materials, they resist oxidation and arc erosion while featuring a multi-rib insulator to protect against misfires. With service intervals of up to 100,000 miles, Motorcraft Spark Plugs help reduce fuel consumption, optimize emissions, and eliminate misfires, making them a cost-effective choice for long-term use. Backed by Motorcraft’s Service Parts Warranty, these ignition components also prevent false check engine lights, offering confidence and peace of mind. Whether you’re maintaining your vehicle’s original performance or upgrading for reliability, Motorcraft Spark Plugs are the trusted solution that was in your vehicle when it was manufactured.
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Motorcraft – Motorcraft Spark Plug: Reliable Ignition & Durable Nickel Construction, SP-431-X (Part No.SP-431-X)

Motorcraft Spark Plug: Reliable Ignition & Durable Nickel Construction, SP-431-X

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$4.99
The Spark Plug with a standard center electrode design and durable nickel construction ensures reliable ignition performance for your vehicle. Featuring a nickel center electrode tip and a nickel ground electrode tip, this spark plug is built for consistent conductivity and long-lasting durability. Its tapered seat type provides a secure fit, enhancing overall engine efficiency and performance. Designed to deliver dependable starts and smooth operation, this spark plug is an excellent choice for maintaining your vehicle’s ignition system. With its robust materials and precise engineering, it offers great value and reliability for everyday driving needs.
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Motorcraft – Motorcraft Spark Plug: Reliable Ignition & Nickel Durability, SP-415-AX (Part No.SP-415-AX)

Motorcraft Spark Plug: Reliable Ignition & Nickel Durability, SP-415-AX

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$4.49
Spark Plug: Reliable Ignition & Nickel Durability is designed to deliver consistent performance and dependable ignition for your vehicle. Featuring a standard center electrode design and nickel material for both the center and ground electrode tips, this spark plug ensures optimal conductivity and durability under various driving conditions. The tapered seat type enhances the fit and seal, contributing to efficient combustion and engine performance. Built to withstand wear and tear, the nickel construction offers long-lasting reliability, making it a cost-effective choice for maintaining your vehicle’s ignition system. Ideal for drivers seeking a balance of quality and value, this spark plug is engineered to keep your engine running smoothly and efficiently.
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Champion – Champion Copper Plus Spark Plug (RF14YC): Dependable Performance & Durability, 21 (Part No.21)

Champion Copper Plus Spark Plug (RF14YC): Dependable Performance & Durability, 21

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$2.49
Copper Plus Spark Plug RF14YC delivers dependable performance and durability, making it a reliable choice for your vehicle’s ignition system. Featuring a copper core center electrode, it ensures precise heat control and enhanced conductivity, promoting longer life and consistent wear. The patented TinTac and ULTRASEAL coated shell provide superior corrosion resistance, safeguarding the plug against harsh conditions. Additionally, the SAC-9 semiconductor resistor effectively suppresses EMI and RFI, ensuring smooth engine operation without interference. Built to ISO and SAE Standards, this spark plug guarantees proven performance and compatibility with a wide range of vehicles. Whether you’re seeking improved ignition efficiency or extended durability, this spark plug offers exceptional value and reliability for your automotive needs.
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Top-Rated Spark Plug Brands For Your 1971 Ford Bronco

When it comes to finding the perfect Spark Plug for your 1971 Ford Bronco, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 8 trusted brands. We carry the most popular Spark Plug brands including Motorcraft, Autolite, and Accel, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $4.49. Purchasing a Spark Plug from us here at Advance Auto Parts is a smart move for both you and your 1971 Ford Bronco, providing peace of mind with parts that meet or exceed OEM standards.

Popular Motorcraft 1971 Ford Bronco Spark Plugs

If you’re looking for a top-quality Spark Plug for your 1971 Ford Bronco, Advance Auto Parts has exactly what you need with our selection of Motorcraft Spark Plugs. We have 2 Motorcraft Spark Plugs in stock for this fitment, all known for their durability and precision fit. With prices starting at just $4.79 and an average cost of $5.89, you’ll find the perfect Spark Plug for your needs and budget. Motorcraft Spark Plugs for the 1971 Ford Bronco come highly rated, with over 38 customer reviews and an impressive average rating of 4.8 stars. Choosing a Motorcraft Spark Plug from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Motorcraft Platinum Spark Plug: Enhances Durability & Reduces Misfires, SP-502
from $6.99
(31)
Motorcraft Platinum Spark Plug: Enhances Durability & Reduces Misfires, SP-502
“Checked gap setting and they where on the money.”

Top-Quality Autolite 1971 Ford Bronco Spark Plugs

For those in search of a high-quality Spark Plug for their 1971 Ford Bronco, Advance Auto Parts offers a great selection of Autolite Spark Plugs. With 2 Autolite 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 $4.49, with an average price of $4.64, giving you a range of options to suit your budget. Backed by over 5 customer ratings and an average rating of 4.6 stars, Autolite Spark Plugs provide both reliability and excellent performance. Choosing a Autolite Spark Plug from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

FAQs for 1971 Ford Bronco Spark Plugs

What are the best-selling Spark Plugs for 1971 Ford Broncos?

Out of 20 Spark Plugs that fit 1971 Ford Broncos, the following parts are the top sellers:

What’s the price range for 1971 Ford Bronco Spark Plugs?

The prices of Spark Plugs for the 1971 Ford Bronco range from $1.25 up to $67.49 for the most premium parts.

What is the average price of a Spark Plug for a 1971 Ford Bronco?

The average price for Spark Plugs for the 1971 Ford Bronco is $14.68. 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 Ford Bronco model years?

Yes, we carry Spark Plugs for 33 model years of Ford Broncos between 1966 and 2025. The following model years are the most popular for Spark Plug purchases: 2023, 2022, 2021, 1996, 1995, 1994, 1993, 1992, and 1991.

Does Advance Auto Parts sell Spark Plugs for any other 1971 Ford models?

Yes. We stock Spark Plugs for 23 other popular 1971 Ford models. Some of the most popular are 1971 Mustang Spark Plugs, 1971 Thunderbird Spark Plugs, 1971 Country Squire Spark Plugs, 1971 LTD Spark Plugs, and 1971 Galaxie 500 Spark Plugs.

What are the top-rated Spark Plugs that fit the 1971 Ford Bronco?

The one 1971 Ford Bronco Spark Plug we have in stock is the Champion Copper Plus Spark Plug (RF14YC): Dependable Performance & Durability, 21. It costs $2.49.

What types of Spark Plugs do you sell for my 1971 Ford Bronco?

We currently have just 1 Spark Plug in stock for a 1971 Ford Bronco, and as of 8/2/26, it is a Spark Plug.

Can I get help with 1971 Ford Bronco Spark Plug orders?

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

What is your return policy for Ford Bronco Spark Plugs?

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