1991 Subaru Legacy Ignition and Tune-Up Products
Find Your Specific 1991 Subaru Legacy Ignition and Tune-Up Products
Below you will find various in-demand Subaru Ignition and Tune-Up Products, components and accessories for your 1991 Legacy. Advance Auto Parts has popular Legacy parts like Ignition Coils and Boots, Ignition Wires, Ignition Sensors and more. You’ll also find aftermarket and OEM Ignition and Tune-Up Products for other Legacy model years including
2014,
2015,
2016,
2017,
2018,
2019,
2020,
2021,
2022 and more. Select a category of 1991 Subaru Legacy Ignition and Tune-Up Products below and start saving instantly.
Popular 1991 Subaru Legacy Ignition and Tune-Up Products Categories
Essential Ignition and Tune-Up Products for 1991 Subaru Legacies
Carquest Premium – Carquest Ignition Coil, EBA1112 (Part No.EBA1112)
from
$99.99
Carquest Premium ignition coils meet or exceed original equipment (OE) specifications and are developed by top OE/OES manufacturers to ensure superior performance. All of our Carquest Premium ignition coils are developed by IATF 16949 certified manufacturers for consistent durability and long-lasting performance. These ignition coils use high-quality components and will utilize optimized designs on applications where the OE ignition coil had frequent failures. We require stringent testing standards to ensure proper fit and performance for each application and stand behind our Carquest Premium ignition coils with an industry-leading warranty. Carquest Premium ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.
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DENSO – DENSO Original Equipment Quality Direct Ignition Coil, 673-0301 (Part No.673-0301)
from
$114.99
As the innovator and leader in stick coil technology DENSO has conducted superior testing and inspection processes to insure the highest quality ignition coil. Don’t be fooled by imitations – look for the DENSO name to be sure you’re getting the best.
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Carquest Premium – Carquest Ignition Coil: Meets or Exceeds OE Specifications, 1 Count, EBC1058 (Part No.EBC1058)
from
$114.99
Carquest Premium ignition coils meet or exceed original equipment (OE) specifications and are developed by top OE/OES manufacturers to ensure superior performance. All of our Carquest Premium ignition coils are developed by IATF 16949 certified manufacturers for consistent durability and long-lasting performance. These ignition coils use high-quality components and will utilize optimized designs on applications where the OE ignition coil had frequent failures. We require stringent testing standards to ensure proper fit and performance for each application and stand behind our Carquest Premium ignition coils with an industry-leading warranty. Carquest Premium ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.
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Carquest Premium – Carquest Ignition Knock (Detonation) Sensor, SBC3697 (Part No.SBC3697)
from
$47.99
Carquest Knock Sensors respond to a wide range of engine knock frequencies providing accurate engine condition to the ECM for optimal ignition timing. Highest quality piezoceramic element manufactured to tight tolerances for increased durability. All Carquest Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.
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Carquest Premium – Carquest Ignition Knock (Detonation) Sensor, SBC3742 (Part No.SBC3742)
from
$103.99
Carquest Knock Sensors respond to a wide range of engine knock frequencies providing accurate engine condition to the ECM for optimal ignition timing. Highest quality piezoceramic element manufactured to tight tolerances for increased durability. All Carquest Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.
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Carquest Premium – Carquest Knock Sensor, SBC3762 (Part No.SBC3762)
from
$83.99
Carquest Knock Sensors respond to a wide range of engine knock frequencies providing accurate engine condition to the ECM for optimal ignition timing. Highest quality piezoceramic element manufactured to tight tolerances for increased durability. All Carquest Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.
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Carquest Premium – Carquest Ignition Switch, CSC2236 (Part No.CSC2236)
from
$112.99
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Ignition Switch allows for reliable control of the vehicle’s electrical systems and engine start-up, enhancing convenience and ensuring consistent performance during operation. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
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Carquest Premium – Carquest Ignition Switch, CSA4172 (Part No.CSA4172)
from
$33.99
The Ignition switch is the main power switched distribution point in every vehicle. The ignition switch in some manner will be connected directly to the vehicle battery and then supply power out to every operating system in the vehicle that is required to be connected and disconnected from the vehicle’s battery or power source.
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Carquest Premium – Carquest Ignition Switch, CSA1979 (Part No.CSA1979)
from
$25.99
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Ignition Switch allows for reliable control of the vehicle’s electrical systems and engine start-up, enhancing convenience and ensuring consistent performance during operation. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
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Sylvania – Sylvania 2721 Long Life: Mini Bulb, Standard Performance, 2 Pack, 2721LLBP2 (Part No.2721LLBP2)
from
$8.99
SYLVANIA Long Life miniature bulbs provide standard performance for your car or truck’s interior and exterior auxiliary lighting. Ideal for use in your car’s back up/reverse, trunk, dome lights and more, Long Life bulbs are a direct replacement for your vehicle. Designed for durability, lower maintenance, and safety in mind.
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Sylvania – Sylvania 158 Long Life: Mini Bulb, Standard Performance, 2 Pack, 158LLBP2 (Part No.158LLBP2)
from
$8.99
SYLVANIA Long Life miniature bulbs provide standard performance for your car or truck’s interior and exterior auxiliary lighting. Ideal for use in your car’s back up/reverse, trunk, dome lights and more, Long Life bulbs are a direct replacement for your vehicle. Designed for durability, lower maintenance, and safety in mind.
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Sylvania – Sylvania 168 SilverStar: Mini Bulb, High Performance, 2 Pack, 168STBP2 (Part No.168STBP2)
from
$13.99
The SYLVANIA SilverStar high performance miniature bulbs deliver a brighter, whiter light when compared to SYLVANIA Long Life. SYLVANIA achieves this using a specially designed filament, propriety gas mixture and a lamp coating that shifts the color temperature towards a whiter light. A brighter light can improve visibility in your interior lighting applications and increase your visibility to other drivers when braking or turning.
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Carquest Premium – Carquest New Ignition Modules, CBE1123 (Part No.CBE1123)
from
$212.99
CARQUEST Ignition Modules are built by an ignition systems manufacturer with expertise in the entire vehicle spark system.
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Autolite – Autolite Racing Resistor Spark Plug: Enhanced Heat Transfer for Peak Performance, AR3924 (Part No.AR3924)
from
$5.99
The Racing Resistor Spark Plug is expertly crafted to deliver peak performance on the track, featuring a cut-back ground electrode for optimal ignitability and enhanced heat transfer, ensuring quicker starts and maximum engine efficiency. Its yttrium-enhanced alloy reduces ground wire temperature by up to 8%, making it ideal for colder heat ranges and performance modifications under intense conditions. The anti-corrosive nickel plating resists rust better than black oxide, maintaining durability and long-term reliability. Designed with a high alumina multi-rib ceramic insulator, it offers superior thermal conductivity and insulation, preventing flash-over while increasing strength. With a mid-projection center electrode and nickel-tipped materials for both the center and ground electrodes, this performance-grade spark plug is built to handle demanding environments. The flat seat design and integrated resistor further enhance its functionality, making it a dependable choice for racers seeking consistent ignition and durability.
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Autolite – Autolite Racing Resistor Spark Plug: Enhanced Heat Transfer for Peak Performance, AR3923 (Part No.AR3923)
from
$5.99
The Racing Resistor Spark Plug is expertly crafted to deliver peak performance on the track, featuring a cut-back ground electrode for optimal ignitability and superior heat transfer, ensuring quicker starts and maximum engine efficiency. Its yttrium-enhanced alloy reduces ground wire temperature by up to 8%, making it ideal for colder heat ranges and performance modifications under intense conditions. The anti-corrosive nickel plating resists rust better than black oxide, maintaining durability and long-term efficiency. Designed with a high alumina multi-rib ceramic insulator, it offers exceptional thermal conductivity and insulation, preventing flash-over while enhancing strength. With a mid-projection center electrode and nickel-tipped components, this performance-grade spark plug is built to handle the demands of racing environments, delivering reliability and value for enthusiasts seeking top-tier engine performance.
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E3 – E3 DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency, E3.56 (Part No.E3.56)
from
$8.49
“The Premium DiamondFire Automotive Spark Plug is engineered to deliver peak performance and efficiency for your vehicle. Featuring E3’s patented Diamond Fire edge-to-edge ground electrode, it ensures a faster, more complete burn for smoother acceleration and idle. The innovative “”diamond-shaped”” side wire electrode enhances combustion by igniting the air/fuel mixture more quickly, resulting in a larger flame kernel and improved power output – up to 6% on average. Designed with nickel center and ground electrode tips, this spark plug offers durability and consistent performance. Its cleaner-burning combustion reduces engine carbon deposits and promotes fuel savings, making it an eco-friendly choice. Pre-gapped at the factory for hassle-free installation, this spark plug is a perfect blend of advanced technology and convenience, ensuring your engine runs at its best.”
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DENSO – DENSO U-Groove Spark Plug: OE Performance, K20PR-U11, 3121 (Part No.3121)
from
$4.99
The U-Groove Spark Plug features a patented U-groove ground electrode design that enhances ignitability, allowing it to fire leaner fuel mixtures for improved engine efficiency. Built with a nickel center electrode tip and a flat seat type, this spark plug ensures reliable performance and compatibility with a wide range of vehicles, including classic and collector cars. Its precision machine-rolled threads minimize the risk of seizing or cross-threading in delicate aluminum heads, making installation smoother and safer. Designed to last twice as long as most conventional plugs, it offers exceptional durability and value. Each plug is 100% pre-fired to guarantee dependable operation, making it a trusted choice for maintaining OE performance. Whether you’re seeking efficiency or longevity, this U-Groove spark plug delivers both.
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Autolite Iridium – Autolite Iridium Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision, AI5683 (Part No.AI5683)
from
$11.49
Autolite Iridium Ultra Laser Fine wire Spark Plugs are one of our brand’s most technologically advanced products. These spark plugs provide superior durability, more focused ignition with better overall ignitability for optimum performance. Autolite Spark Plugs are the best alternative to OE spark plugs, offering OE fit form and function supporting all foreign and domestic makes and models at a value price. Autolite provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs in the world.
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Autolite – Autolite Platinum Spark Plug: Enhanced Durability & Improved Performance, AP5325 (Part No.AP5325)
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 resists gap erosion, extending service life, while the high alumina ceramic insulator enhances thermal conductivity and insulation for added strength. A multi-rib insulator prevents flash-over, and the nickel-plated shell offers exceptional corrosion resistance for long-lasting durability. Designed with a mid-projection standard center electrode and nickel ground electrode tip, these spark plugs deliver reliable performance under demanding conditions. Engineered in the USA with over a century of expertise and backed by the sale of over 11 billion plugs, Autolite Platinum spark plugs are a trusted choice for drivers seeking enhanced engine efficiency and durability.
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NGK – NGK Iridium IX Spark Plug (LFR6AIX-11): Extreme Ignitability & Durability, 6619 (Part No.6619)
from
$17.99
NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode’s durability is six times harder than platinum. Iridium alloy’s extremely high melting point is perfect for today’s engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.
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NGK – NGK Ruthenium HX Spark Plug (LKAR7AHX-S): High Ignitability & Durability, 92274 (Part No.92274)
from
$15.99
NGK Ruthenium HX High Ignitability spark plugs are the best in class plug for todays modern vehicles. Patented Ruthenium technology offers the most advance tip technology and delivers the highest performance and life expectancy. Created from advanced OE technology as a high ignitability plug, Ruthenium HX spark plugs come with patented, specialized OEM DFE and PSPE tip designs. NGK Ruthenium HX High Ignitability spark plugs provide a more complete fuel burn resulting in a quicker throttle response, smoother idle and better cold starts. Ruthenium center electrode provides industry leading durability.
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Carquest Premium – Carquest Spark Plug Wire Set: 4 Wires, Increased performance, Designed for direct fit, 35-4437 (Part No.35-4437)
from
$69.99
CARQUEST Premium Spark Plug Wire Sets are engineered to restore ignition wire reliability and performance. They are designed to meet or exceed OE design requirements, performance, fit, form and function of the OE wire. Stainless steel magnetic winding delivers maximum voltage to the spark plug for more powerful, and longer spark resulting in optimum engine performance while reducing the chance for misfire, and eliminating radio static.
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Carquest Premium – Carquest Spark Plug Wire Set: 4 Wires, Increased performance, Designed for direct fit, 35-4267 (Part No.35-4267)
from
$34.99
CARQUEST Premium Spark Plug Wire Sets are engineered to restore ignition wire reliability and performance. They are designed to meet or exceed OE design requirements, performance, fit, form and function of the OE wire. Stainless steel magnetic winding delivers maximum voltage to the spark plug for more powerful, and longer spark resulting in optimum engine performance while reducing the chance for misfire, and eliminating radio static.
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Carquest Premium – Carquest Spark Plug Wire Set: 4 Wires, Increased performance, Designed for direct fit, 35-4247 (Part No.35-4247)
from
$41.99
CARQUEST Premium Spark Plug Wire Sets are engineered to restore ignition wire reliability and performance. They are designed to meet or exceed OE design requirements, performance, fit, form and function of the OE wire. Stainless steel magnetic winding delivers maximum voltage to the spark plug for more powerful, and longer spark resulting in optimum engine performance while reducing the chance for misfire, and eliminating radio static.
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Carquest Premium – Carquest Spark Plug Wire Set: 4 Wires, Increased performance, Designed for direct fit, 35-4277 (Part No.35-4277)
from
$71.99
CARQUEST Premium Spark Plug Wire Sets are engineered to restore ignition wire reliability and performance. They are designed to meet or exceed OE design requirements, performance, fit, form and function of the OE wire. Stainless steel magnetic winding delivers maximum voltage to the spark plug for more powerful, and longer spark resulting in optimum engine performance while reducing the chance for misfire, and eliminating radio static.
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Carquest Premium – Carquest Coil On Plug Insulator Boot: Spring included, Designed for direct fit, 35-7083 (Part No.35-7083)
from
$8.29
Carquest Premium spark plug boots are engineered to restore ignition boot reliability and performance. They are designed to meet or exceed original equipment (O.E.) specifications for fit, form and function. Our spark plug boots offer excellent heat resistance as well as maximum protection against spark loss. Carquest Premium spark plug boots are built with a durable silicone compound for resistance to high heat and abrasion, resulting in a longer-lasting ignition repair.
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NGK – NGK Direct Ignition Coil on Plug Boot: Premium Silicone, 59005 (Part No.59005)
from
$7.29
NGK Coil on Plug Boots are built to stringent OEM tolerances, combining original equipment fit, design and outstanding durability. NGK Coil on Plug Boots are manufactured using only premium silicone and always include any required internal springs and ferrite resistors for superior performance and RFI noise suppression. Bridging the important link between ignition coil and spark plug, COP boots should always be replaced with NGK Coil on Plug Boots at the time as changing spark plugs to prevent ignition problems such as flashover.
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Carquest Premium – Carquest Spark Plug Wire Set: 4 Wires, Increased performance, Designed for direct fit, 35-4436 (Part No.35-4436)
from
$38.99
CARQUEST Premium Spark Plug Wire Sets are engineered to restore ignition wire reliability and performance. They are designed to meet or exceed OE design requirements, performance, fit, form and function of the OE wire. Stainless steel magnetic winding delivers maximum voltage to the spark plug for more powerful, and longer spark resulting in optimum engine performance while reducing the chance for misfire, and eliminating radio static.
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Upgrade your 1991 Subaru Legacy with Top-Quality Ignition and Tune-Up Products
When it comes to maintaining or upgrading your 1991 Subaru Legacy, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Subaru or enhancing its overall performance, Ignition and Tune-Up Products are key to keeping your Legacy functioning at its best. At Advance Auto Parts, we offer a wide selection of 38 Ignition and Tune-Up Products for the 1991 Subaru Legacy, designed to meet your needs without breaking the bank.
From
Ignition Coils and Boot
replacements to
Ignition Wires
upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.
Affordable Prices and Wide Selection
Shopping for Ignition and Tune-Up Products for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Ignition and Tune-Up Products for your 1991 Subaru Legacy at great prices.
Our Ignition and Tune-Up Products inventory for this model
ranges from just $3.79 to $212.99, with
an average price of $20.42.
Our 38 Ignition and Tune-Up Products in stock come from 9 trusted brands, so you’re sure to find the right part for your 1991 Subaru Legacy without overspending.
Top Brands and High Customer Satisfaction
Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 1991 Subaru Legacy, we stock popular OEM and aftermarket Ignition and Tune-Up Products from top names
like NGK, DENSO, Sylvania, and more.
NGK Ignition and Tune-Up Products
start at just $7.49 and boast an impressive 4.8 stars average rating from customers.
DENSO and Sylvania also bring quality to the table, with Ignition and Tune-Up Products available starting at $4.99, and at an average 4.6 stars rating.
With 5,047 customer reviews and counting, our 1991 Subaru Legacy Ignition and Tune-Up Products have a strong track record of reliability, ensuring you can trust your purchase.
Explore Related Parts and More
While you’re here, don’t forget to check out other essential categories that go hand in hand with Ignition and Tune-Up Product upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants
and more to make sure your 1991 Subaru Legacy is always ready to roll. We’re committed to providing you with everything you need to keep your Legacy in top shape, all in one place.
Start shopping confidently below for your 1991 Subaru Legacy!
Best-Selling Ignition Coils and Boots for 1991 Subaru Legacies
Enhance the driving experience in your Subaru with 2 quality Ignition Coils and Boot components, starting at $76.99.
Carquest Premium – Carquest Ignition Coil: Meets or Exceeds OE Specifications, 1 Count, EBE1641 (Part No.EBE1641)
from
$76.99
Carquest Premium ignition coils meet or exceed original equipment (OE) specifications and are developed by top OE/OES manufacturers to ensure superior performance. All of our Carquest Premium ignition coils are developed by IATF 16949 certified manufacturers for consistent durability and long-lasting performance. These ignition coils use high-quality components and will utilize optimized designs on applications where the OE ignition coil had frequent failures. We require stringent testing standards to ensure proper fit and performance for each application and stand behind our Carquest Premium ignition coils with an industry-leading warranty (limited). Carquest Premium ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.
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Carquest Premium – Carquest Ignition Coil, EBC1664 (Part No.EBC1664)
from
$79.99
Carquest Premium ignition coils meet or exceed original equipment (OE) specifications and are developed by top OE/OES manufacturers to ensure superior performance. All of our Carquest Premium ignition coils are developed by IATF 16949 certified manufacturers for consistent durability and long-lasting performance. These ignition coils use high-quality components and will utilize optimized designs on applications where the OE ignition coil had frequent failures. We require stringent testing standards to ensure proper fit and performance for each application and stand behind our Carquest Premium ignition coils with an industry-leading warranty. Carquest Premium ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.
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Most Popular 1991 Subaru Legacy Ignition Wires
Customize your Subaru with 1 Ignition Wires products
like Standard Spark Plug Wires, all
priced under $34.99.
Carquest Premium – Carquest Spark Plug Wire Set: 4 Wires, Increased performance, Designed for direct fit, 35-4267 (Part No.35-4267)
from
$34.99
CARQUEST Premium Spark Plug Wire Sets are engineered to restore ignition wire reliability and performance. They are designed to meet or exceed OE design requirements, performance, fit, form and function of the OE wire. Stainless steel magnetic winding delivers maximum voltage to the spark plug for more powerful, and longer spark resulting in optimum engine performance while reducing the chance for misfire, and eliminating radio static.
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Top Picks for 1991 Subaru Legacy Ignition Sensors
Upgrade Subaru Legacies with top-quality Ignition Sensors parts, including 1 OEM and aftermarket selections for your 1991 model.
Carquest Premium – Carquest Knock Sensor, SBC3761 (Part No.SBC3761)
from
$59.99
Carquest Knock Sensors respond to a wide range of engine knock frequencies providing accurate engine condition to the ECM for optimal ignition timing. Highest quality piezoceramic element manufactured to tight tolerances for increased durability. All Carquest Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.
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In-Demand Ignition Switches for 1991 Subaru Legacies
Select from 4 premium Ignition Switches parts for your 1991 Subaru Legacy, with prices ranging from $8.99 to $25.99.
Sylvania – Sylvania 2721 Long Life: Mini Bulb, Standard Performance, 2 Pack, 2721LLBP2 (Part No.2721LLBP2)
from
$8.99
SYLVANIA Long Life miniature bulbs provide standard performance for your car or truck’s interior and exterior auxiliary lighting. Ideal for use in your car’s back up/reverse, trunk, dome lights and more, Long Life bulbs are a direct replacement for your vehicle. Designed for durability, lower maintenance, and safety in mind.
See More
Sylvania – Sylvania 168 SilverStar: Mini Bulb, High Performance, 2 Pack, 168STBP2 (Part No.168STBP2)
from
$13.99
The SYLVANIA SilverStar high performance miniature bulbs deliver a brighter, whiter light when compared to SYLVANIA Long Life. SYLVANIA achieves this using a specially designed filament, propriety gas mixture and a lamp coating that shifts the color temperature towards a whiter light. A brighter light can improve visibility in your interior lighting applications and increase your visibility to other drivers when braking or turning.
See More
Sylvania – Sylvania 158 Long Life: Mini Bulb, Standard Performance, 2 Pack, 158LLBP2 (Part No.158LLBP2)
from
$8.99
SYLVANIA Long Life miniature bulbs provide standard performance for your car or truck’s interior and exterior auxiliary lighting. Ideal for use in your car’s back up/reverse, trunk, dome lights and more, Long Life bulbs are a direct replacement for your vehicle. Designed for durability, lower maintenance, and safety in mind.
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Carquest Premium – Carquest Ignition Switch, CSA1979 (Part No.CSA1979)
from
$25.99
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Ignition Switch allows for reliable control of the vehicle’s electrical systems and engine start-up, enhancing convenience and ensuring consistent performance during operation. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
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Most Sold 1991 Subaru Legacy Spark Plugs
Explore our best-selling Subaru parts for the 1991 Legacy among 29 OEM and aftermarket options starting from $3.79.
NGK – NGK G-Power Platinum Spark Plug (BKR6EGP): Enhanced Durability & Efficiency, 7092 (Part No.7092)
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 (BKR6EIX-11): Enhanced Ignitability & Durability, 3764 (Part No.3764)
from
$15.99
NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode’s durability is six times harder than platinum. Iridium alloy’s extremely high melting point is perfect for today’s engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.
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NGK – NGK V-Power Nickel Spark Plug (BKR6E-11): Reliable Ignitability & Performance, 2756 (Part No.2756)
from
$7.49
NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Engineered specifically for OE applications, the special V-cut nickel alloy center electrode and concave ground electrode of NGK’s V-Power spark plug increases ignitability providing quicker starts and smoother idle. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.
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NGK – NGK Standard Nickel Spark Plug (BKR6ES-11): Reliable OE Performance, 5553 (Part No.5553)
from
$6.99
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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DENSO – DENSO Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IK20, 5304 (Part No.5304)
Autolite – Autolite Racing Resistor Spark Plug: Enhanced Heat Transfer for Peak Performance, AR3923 (Part No.AR3923)
from
$5.99
The Racing Resistor Spark Plug is expertly crafted to deliver peak performance on the track, featuring a cut-back ground electrode for optimal ignitability and superior heat transfer, ensuring quicker starts and maximum engine efficiency. Its yttrium-enhanced alloy reduces ground wire temperature by up to 8%, making it ideal for colder heat ranges and performance modifications under intense conditions. The anti-corrosive nickel plating resists rust better than black oxide, maintaining durability and long-term efficiency. Designed with a high alumina multi-rib ceramic insulator, it offers exceptional thermal conductivity and insulation, preventing flash-over while enhancing strength. With a mid-projection center electrode and nickel-tipped components, this performance-grade spark plug is built to handle the demands of racing environments, delivering reliability and value for enthusiasts seeking top-tier engine performance.
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ACDelco – ACDelco Double Platinum Spark Plug, 41-801 (Part No.41-801)
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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Champion – Champion Double Platinum Power Spark Plug RC10PYPB4 – Enhanced Durability & Performance, 7546 (Part No.7546)
from
$9.99
Champion Double Platinum Power spark plugs combine a platinum fine-wire center electrode with platinum center and ground electrodes and exclusive Heat-Active alloy, ensuring powerful performance, longer service life and precise spark focus for optimal combustion. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.
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DENSO – DENSO Double Platinum Spark Plug: OE Performance, lasts 60K+ Miles, PK20PR11, 3168 (Part No.3168)
from
$14.49
Double Platinum Spark Plug (PK20PR11) is engineered to meet the highest OE standards for performance, durability, and emissions compliance. Featuring OE-grade platinum on both the center and ground electrodes, this spark plug ensures sustained spark performance for over 60,000 miles, delivering reliable ignition efficiency and reduced secondary required voltage. Its premium shell construction with machine-rolled threads enhances durability and ensures a secure fit, while superior thermal conductivity optimizes heat dissipation for consistent operation. Designed with a flat seat type and platinum center electrode tip material, this spark plug offers exceptional longevity and reduced maintenance needs, making it a trusted choice for satisfied customers and minimizing shop comebacks. Perfect for those seeking a high-quality solution that combines advanced technology with long-lasting performance.
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NGK – NGK Laser Iridium Spark Plug (IFR6E11): Fine Wire Tip for Precision, 6741 (Part No.6741)
from
$22.99
NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. Most Laser Iridium spark plugs feature a platinum pad on the ground electrode for even wear in distributorless ignition systems.
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DENSO – DENSO U-Groove Spark Plug: OE Performance, K20PR-U11, 3121 (Part No.3121)
from
$4.99
The U-Groove Spark Plug features a patented U-groove ground electrode design that enhances ignitability, allowing it to fire leaner fuel mixtures for improved engine efficiency. Built with a nickel center electrode tip and a flat seat type, this spark plug ensures reliable performance and compatibility with a wide range of vehicles, including classic and collector cars. Its precision machine-rolled threads minimize the risk of seizing or cross-threading in delicate aluminum heads, making installation smoother and safer. Designed to last twice as long as most conventional plugs, it offers exceptional durability and value. Each plug is 100% pre-fired to guarantee dependable operation, making it a trusted choice for maintaining OE performance. Whether you’re seeking efficiency or longevity, this U-Groove spark plug delivers both.
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DENSO – DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IK20TT, 4702 (Part No.4702)
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$14.99
Durability of an OE style plug combined with Power & Torque of high performance.
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Autolite Iridium – Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP3923 (Part No.XP3923)
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$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, AP3923 (Part No.AP3923)
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$5.49
Autolite Platinum spark plugs are crafted for superior performance and durability, making them ideal for older engine applications. Featuring a platinum center electrode firing tip, these spark plugs ensure quicker firing, smoother starts, and enhanced acceleration while boosting fuel efficiency. The platinum firing tip resists gap erosion, extending service life, while the high alumina ceramic insulator offers excellent thermal conductivity and insulation for added strength. A multi-rib insulator prevents flash-over, and the nickel-plated shell resists corrosion for long-lasting reliability. Designed with a flat gasket seat type, these spark plugs provide a secure seal for optimal engine performance. With a mid-projection standard center electrode and nickel ground electrode tip, they deliver consistent performance for demanding conditions. Perfect for performance-grade applications, these spark plugs combine advanced materials and engineering to ensure your engine runs smoothly and efficiently.
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Autolite – Autolite Copper Resistor Spark Plug: Quick Starts & Reliable Performance, 3923 (Part No.3923)
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$4.49
Autolite Copper spark plugs are designed to provide reliable performance and quick starts, making them an essential choice for maintaining your vehicle’s efficiency. 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 engineered for extended life, while the high alumina multi-rib ceramic insulator enhances thermal conductivity and insulation strength. With a nickel-plated shell, these plugs resist corrosion, offering durability for long-term use. The mid-projection standard center electrode design, combined with nickel tip materials, ensures optimal spark delivery. Designed with a gasket seat type and equipped with a resistor, these spark plugs meet regular-grade specifications, making them a dependable option for a wide range of applications.
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Autolite – Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP3923 (Part No.APP3923)
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$7.49
Autolite Double Platinum spark plugs are engineered for exceptional durability and performance, making them an ideal choice for distributor-less ignition system (DIS) engines. Featuring a platinum-to-platinum design, these spark plugs effectively prevent gap erosion, reduce misfires, and extend service life. The yttrium-enhanced ground electrode ensures superior heat transfer, allowing the plugs to withstand high temperatures and pressures for greater longevity. A high alumina ceramic insulator provides optimal thermal conductivity and dielectric strength, while the multi-rib insulator design prevents flash-over for reliable operation. With a mid-projection center electrode and platinum tips on both the center and ground electrodes, these plugs deliver consistent performance and efficiency. Backed by over a century of engineering expertise and a legacy of over 11 billion plugs sold, Autolite guarantees proven quality and reliability. Designed for performance-grade applications, these spark plugs are a smart upgrade over copper and standard platinum options, ensuring your engine runs smoothly and efficiently.
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E3 – E3 DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency, E3.56 (Part No.E3.56)
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$8.49
“The Premium DiamondFire Automotive Spark Plug is engineered to deliver peak performance and efficiency for your vehicle. Featuring E3’s patented Diamond Fire edge-to-edge ground electrode, it ensures a faster, more complete burn for smoother acceleration and idle. The innovative “”diamond-shaped”” side wire electrode enhances combustion by igniting the air/fuel mixture more quickly, resulting in a larger flame kernel and improved power output – up to 6% on average. Designed with nickel center and ground electrode tips, this spark plug offers durability and consistent performance. Its cleaner-burning combustion reduces engine carbon deposits and promotes fuel savings, making it an eco-friendly choice. Pre-gapped at the factory for hassle-free installation, this spark plug is a perfect blend of advanced technology and convenience, ensuring your engine runs at its best.”
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Champion – Champion Platinum Power Spark Plug RC9PYC – Powerful Performance & Longevity, 3344 (Part No.3344)
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$5.99
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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DENSO – DENSO Platinum TT Spark Plug with Twin-Tip Design for Enhanced Ignition, 4504 (Part No.4504)
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$3.99
The Platinum TT Spark Plug with its advanced twin-tip design ensures faster flame propagation for more complete combustion, enhancing ignition performance and efficiency. Featuring a platinum center electrode, it delivers excellent conductivity and durability, while the titanium-enhanced ground strap ensures superior performance and extended lifespan. The flat seat type provides a secure fit, making it compatible with a variety of vehicles. Designed for reliability and longevity, this spark plug is a dependable choice for maintaining consistent engine performance. Its high-quality materials and innovative design make it a valuable addition to your vehicle’s ignition system.
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Dorman – Help – Dorman – Help Spark Plug Non-Foulers – 14mm Gasket Seat Long Reach, 42004 (Part No.42004)
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$9.99
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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Champion – Champion Copper Plus Spark Plug RC10YC4 – Dependable Performance & Durability, 346 (Part No.346)
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$5.49
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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ACDelco – ACDelco Conventional Spark Plug, 41-602 (Part No.41-602)
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$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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Autolite Iridium – Autolite Iridium Iridium Ultra Fine wire Spark Plug: Optimal Performance & Durability, AI3923 (Part No.AI3923)
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$11.49
Optimal Performance, Durability, Ignitability. The Autolite Iridium Ultra is an engineered OE replacement iridium spark plug featuring a laser-welded 0.5mm proprietary iridium alloy finewire center electrode that ensures optimal fuel efficiency, acceleration, and focused ignitability. Its nickel-plated shell resists corrosion, while the high-alumina ceramic insulator provides increased strength. Additionally, the proprietary platinum sidewire technology enhances durability and performance, making it a top choice for reliable ignition. It also features a resistor type and a flat seat type for added compatibility and performance.
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Champion – Champion Copper Plus Small Engine Spark Plug RC7YC3 – Dependable Performance & Durability, 444 (Part No.444)
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$3.79
Champion Copper Plus spark plugs deliver dependable ignition performance with proven copper-core technology. The copper core electrode provides excellent conductivity and optimized heat control for consistent sparks while the coated shell protects against corrosion. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.
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Top-Rated Ignition and Tune-Up Products Brands For Your 1991 Subaru Legacy
Shop for the best-rated brands offering Ignition and Tune-Up Products and other products for your 1991 Subaru Legacies. Below you’ll find some of our best rated Ignition and Tune-Up Products from NGK, DENSO, and Sylvania, and more. Ignition and Tune-Up Products from these brands that fit a 1991 Legacy start at just $4.99 and are rated as high as 4.8 stars. OEM and aftermarket Ignition and Tune-Up Products don’t get more top quality, durable, and affordable than from the brands below.
Popular NGK 1991 Subaru Legacy Ignition and Tune-Up Products
When it comes to maintaining or upgrading your 1991 Subaru Legacy, using quality Ignition and Tune-Up Products is essential to ensure durability and a perfect fit. NGK ticks all of those boxes. We offer a wide selection of NGK Ignition and Tune-Up Products, specifically designed for the 1991 Subaru Legacy. With over 3 NGK brand Ignition and Tune-Up Products in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $7.49, with an average price of just $10.82. Plus, with over 351 customer reviews and an average rating of 4.8 stars, you can trust that our NGK Ignition and Tune-Up Products will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
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$8.99
(152)
NGK G-Power Platinum Spark Plug (BKR6EGP): Enhanced Durability & Efficiency, 7092
“Charges and Performs Great !”
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$7.49
(86)
NGK V-Power Nickel Spark Plug (BKR6E-11): Reliable Ignitability & Performance, 2756
“Came pre gapped out of the box.”
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$15.99
(113)
NGK Iridium IX Spark Plug (BKR6EIX-11): Enhanced Ignitability & Durability, 3764
“Ayuda al motor mas fuerza”
Popular DENSO 1991 Subaru Legacy Ignition and Tune-Up Products
DENSO auto parts is one of the highest quality Ignition and Tune-Up Product brands in the market. Any 1991 Subaru Legacy owner should feel confident when installing genuine DENSO parts in their vehicle. To ensure the best fit and performance for your 1991 Legacy, Advance Auto Parts carries a full inventory of 3 DENSO Ignition and Tune-Up Products. Plus you will be keeping your Subaru in peak condition while saving money because prices on these DENSO Ignition and Tune-Up Products range from $4.99 to $14.49, plus, with more than 62 customer reviews and an impressive 4.6 stars average rating, you can be confident the Fram Ignition and Tune-Up Products below will deliver on both quality and value.
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$14.49
(5)
DENSO Double Platinum Spark Plug: OE Performance, lasts 60K+ Miles, PK20PR11, 3168
“noticed a smoother running engine after installing these. Gap at 1mm, my old plug electrodes were worn.”
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$14.49
(55)
DENSO Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IK20, 5304
“👍”
FAQs for 1991 Subaru Legacy Ignition and Tune-Up Products
Which Ignition and Tune-Up Products are best-sellers for 1991 Subaru Legacies?
Out of 38 Ignition and Tune-Up Products that fit 1991 Subaru Legacies, the following parts are the top sellers:
- DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IK20TT, 4702 (10713003) – $14.99
- NGK G-Power Platinum Spark Plug (BKR6EGP): Enhanced Durability & Efficiency, 7092 (20650261) – $8.99
- NGK Iridium IX Spark Plug (BKR6EIX-11): Enhanced Ignitability & Durability, 3764 (15650054) – $15.99
What’s the price range for 1991 Subaru Legacy Ignition and Tune-Up Products?
Ignition and Tune-Up Product prices for the 1991 Subaru Legacy start at $3.79 and go up to $212.99 for the most premium parts.
What’s the average price of a Ignition and Tune-Up Product for a 1991 Subaru Legacy?
The average price for Ignition and Tune-Up Products for the 1991 Subaru Legacy is $20.42. Keep in mind the variety of part types within our Ignition and Tune-Up Product category so you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Ignition and Tune-Up Products for other Subaru Legacy model years?
What are the cheapest Ignition and Tune-Up Products for my 1991 Subaru Legacy?
The cheapest 1991 Subaru Legacy Ignition and Tune-Up Products we carry in stock are:
- Champion Copper Plus Small Engine Spark Plug RC7YC3 – Dependable Performance & Durability, 444 (11438798) – $3.79
- DENSO Platinum TT Spark Plug with Twin-Tip Design for Enhanced Ignition, 4504 (11010036) – $3.99
- Autolite Copper Resistor Spark Plug: Quick Starts & Reliable Performance, 3923 (5394163) – $4.49
- DENSO U-Groove Spark Plug: OE Performance, K20PR-U11, 3121 (20650410) – $4.99
- Autolite Platinum Spark Plug: Enhanced Durability & Improved Performance, AP3923 (12013889) – $5.49
What are the top-rated Ignition and Tune-Up Products that fit the 1991 Subaru Legacy?
Out of 5,047 reviews by customers, our 1991 Subaru Legacy Ignition and Tune-Up Products have an average customer rating of . These are some of the highest-rated Ignition and Tune-Up Product types for the 1991 Subaru Legacy and their top-rated products:
- Ignition Switches
- Sylvania 2721 Long Life: Mini Bulb, Standard Performance, 2 Pack, 2721LLBP2 (99997887) – $8.99
- Sylvania 158 Long Life: Mini Bulb, Standard Performance, 2 Pack, 158LLBP2 (10030949) – $8.99
- Sylvania 168 SilverStar: Mini Bulb, High Performance, 2 Pack, 168STBP2 (10030952) – $13.99
- Spark Plugs
- Sylvania 2721 Long Life: Mini Bulb, Standard Performance, 2 Pack, 2721LLBP2 (99997887) – $8.99
- Sylvania 158 Long Life: Mini Bulb, Standard Performance, 2 Pack, 158LLBP2 (10030949) – $8.99
- Sylvania 168 SilverStar: Mini Bulb, High Performance, 2 Pack, 168STBP2 (10030952) – $13.99
What types of Ignition and Tune-Up Products do you sell for my 1991 Subaru Legacy?
As of 8/2/26, these are some of the most in-demand types of Ignition and Tune-Up Products for a 1991 Subaru Legacy:
Can I get help with 1991 Subaru Legacy Ignition and Tune-Up Product orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Subaru Ignition and Tune-Up Products and more.
What is your return policy for Subaru Legacy Ignition and Tune-Up Products?
Advance Auto Parts keeps returns simple. For new Subaru Legacy Ignition and Tune-Up Products and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
