2001 Subaru Legacy Ignition Sensors
Keep Your 2001 Subaru Legacy in Top Shape with Quality Ignition Sensors
Whether you’re repairing or upgrading your Ignition Sensor, using high-quality parts is key to keeping your 2001 Subaru Legacy looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Knock Sensors. 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 Ignition Sensors from Trusted Brands
Looking for a reliable Ignition Sensor? We’ve got you covered with options from brands you know and trust like Delphi. For example, Delphi Ignition Sensors start at just $96.99 with an average 4.2 star rating. With over 3 reviews and a solid 4 star average, you can shop with confidence knowing other Subaru Legacy owners approve.
Competitive Prices and Extensive Inventory
The average price for a 2001 Subaru Legacy Ignition Sensor at Advance Auto Parts is around $75.49, with a range that starts at $53.99 and goes up to $96.99. With 2 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Ignition Knock (Detonation) Sensor start at just $53.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Ignition Sensor, don’t forget to check out other key components like Ignition Coils and Boots and Spark Plugs. At Advance Auto Parts, we’re here to help you keep your 2001 Subaru Legacy in peak condition, inside and out.
Find Your Specific 2001 Subaru Legacy Ignition Sensors
Looking for the perfect Ignition Sensor for your 2001 Subaru Legacy? You’re in the right place. Below, you’ll find links to various types of Ignition Sensors that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Ignition Sensors, ensuring durability and a precise fit for your Subaru Legacy. Whether you’re driving a 2001 model or another popular model year like
2011,
2012,
2013,
2014,
2015,
2016,
2017,
2018, and
2019, we’ve got you covered. Purchasing Ignition Sensors from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Ignition Sensors that fit your vehicle.
Essential 2001 Subaru Legacy Ignition Sensors
Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA3677)
from
$53.99
Carquest Premium knock sensors are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Carquest Premium knock sensors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. We utilize advanced technology to design sensors that are, in many cases, stronger than OE parts. Carquest Premium knock sensors undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium knock sensors 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.
Product Features:
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Product Features:
- Designed to meet or exceed OE specifications for fit, form and function
- Trivalent iridescent chromate plating prevents corrosion
- Silicone seals prevent moisture intrusion preventing false codes and sensor failure
- Wiring harnesses utilize high-temperature insulation when applicable
- Extensive design validation testing and 100% end-of-line tested
- Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
Carquest Premium – Knock Sensor (Part No.SBC3762)
from
$95.99
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.
Product Features:
See More
Product Features:
- Precision piezoceramic element ensures accurate response to a wide range of engine vibrations
- Manufactured using the highest quality OEM materials to ensure optimal performance and rugged durability
- Designed to meet or exceed all OEM specifications in fit, form & function
- Extensive product testing includes salt spray, high/low temperature impact, thermal cycling, vibration, drop among other tests, to ensure all sensors meet or exceed OEM specifications.
Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA4304)
from
$89.99
Carquest Premium knock sensors are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Carquest Premium knock sensors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. We utilize advanced technology to design sensors that are, in many cases, stronger than OE parts. Carquest Premium knock sensors undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium knock sensors 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.
Product Features:
See More
Product Features:
- Designed to meet or exceed OE specifications for fit, form and function
- Trivalent iridescent chromate plating prevents corrosion
- Silicone seals prevent moisture intrusion preventing false codes and sensor failure
- Wiring harnesses utilize high-temperature insulation when applicable
- Extensive design validation testing and 100% end-of-line tested
- Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
Carquest Premium – Knock Sensor (Part No.SBC3761)
from
$56.99
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.
Product Features:
See More
Product Features:
- Precision piezoceramic element ensures accurate response to a wide range of engine vibrations
- Manufactured using the highest quality OEM materials to ensure optimal performance and rugged durability
- Designed to meet or exceed all OEM specifications in fit, form & function
- Extensive product testing includes salt spray, high/low temperature impact, thermal cycling, vibration, drop among other tests, to ensure all sensors meet or exceed OEM specifications.
Carquest Premium – Knock Sensor (Part No.SBC3818)
from
$82.99
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.
Product Features:
See More
Product Features:
- Precision piezoceramic element ensures accurate response to a wide range of engine vibrations
- Manufactured using the highest quality OEM materials to ensure optimal performance and rugged durability
- Designed to meet or exceed all OEM specifications in fit, form & function
- Extensive product testing includes salt spray, high/low temperature impact, thermal cycling, vibration, drop among other tests, to ensure all sensors meet or exceed OEM specifications.
Carquest Premium – Knock Sensor (Part No.SBC3975)
from
$158.99
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.
Product Features:
See More
Product Features:
- Precision piezoceramic element ensures accurate response to a wide range of engine vibrations
- Manufactured using the highest quality OEM materials to ensure optimal performance and rugged durability
- Designed to meet or exceed all OEM specifications in fit, form & function
- Extensive product testing includes salt spray, high/low temperature impact, thermal cycling, vibration, drop among other tests, to ensure all sensors meet or exceed OEM specifications.
Carquest Premium – Knock Sensor (Part No.SBC3964)
from
$99.99
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.
Product Features:
See More
Product Features:
- Precision piezoceramic element ensures accurate response to a wide range of engine vibrations
- Manufactured using the highest quality OEM materials to ensure optimal performance and rugged durability
- Designed to meet or exceed all OEM specifications in fit, form & function
- Extensive product testing includes salt spray, high/low temperature impact, thermal cycling, vibration, drop among other tests, to ensure all sensors meet or exceed OEM specifications.
Carquest Premium – Ignition Knock (Detonation) Sensor (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.
Product Features:
See More
Product Features:
- Precision piezoceramic element ensures accurate response to a wide range of engine vibrations
- Manufactured using the highest quality OEM materials to ensure optimal performance and rugged durability
- Designed to meet or exceed all OEM specifications in fit, form & function
- Extensive product testing includes salt spray, high/low temperature impact, thermal cycling, vibration, drop among other tests, to ensure all sensors meet or exceed OEM specifications.
Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA4303)
from
$104.99
Carquest Premium knock sensors are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Carquest Premium knock sensors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. We utilize advanced technology to design sensors that are, in many cases, stronger than OE parts. Carquest Premium knock sensors undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium knock sensors 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.
Product Features:
See More
Product Features:
- Designed to meet or exceed OE specifications for fit, form and function
- Trivalent iridescent chromate plating prevents corrosion
- Silicone seals prevent moisture intrusion preventing false codes and sensor failure
- Wiring harnesses utilize high-temperature insulation when applicable
- Extensive design validation testing and 100% end-of-line tested
- Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.EKA1047)
from
$107.99
Carquest Premium knock sensors are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Carquest Premium knock sensors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. We utilize advanced technology to design sensors that are, in many cases, stronger than OE parts. Carquest Premium knock sensors undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium knock sensors 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.
Product Features:
See More
Product Features:
- Designed to meet or exceed OE specifications for fit, form and function
- Trivalent iridescent chromate plating prevents corrosion
- Silicone seals prevent moisture intrusion preventing false codes and sensor failure
- Wiring harnesses utilize high-temperature insulation when applicable
- Extensive design validation testing and 100% end-of-line tested
- Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBC3697)
from
$41.99
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.
Product Features:
See More
Product Features:
- Precision piezoceramic element ensures accurate response to a wide range of engine vibrations
- Manufactured using the highest quality OEM materials to ensure optimal performance and rugged durability
- Designed to meet or exceed all OEM specifications in fit, form & function
- Extensive product testing includes salt spray, high/low temperature impact, thermal cycling, vibration, drop among other tests, to ensure all sensors meet or exceed OEM specifications.
Carquest Premium – Knock Sensor (Part No.EKC1038)
from
$105.99
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.
Product Features:
See More
Product Features:
- Precision piezoceramic element ensures accurate response to a wide range of engine vibrations
- Manufactured using the highest quality OEM materials to ensure optimal performance and rugged durability
- Designed to meet or exceed all OEM specifications in fit, form & function
- Extensive product testing includes salt spray, high/low temperature impact, thermal cycling, vibration, drop among other tests, to ensure all sensors meet or exceed OEM specifications.
Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA5405)
from
$169.99
Carquest Premium knock sensors are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Carquest Premium knock sensors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. We utilize advanced technology to design sensors that are, in many cases, stronger than OE parts. Carquest Premium knock sensors undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium knock sensors 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.
Product Features:
See More
Product Features:
- Designed to meet or exceed OE specifications for fit, form and function
- Trivalent iridescent chromate plating prevents corrosion
- Silicone seals prevent moisture intrusion preventing false codes and sensor failure
- Wiring harnesses utilize high-temperature insulation when applicable
- Extensive design validation testing and 100% end-of-line tested
- Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
Dorman – Engine Knock Sensor And Harness Kit (Part No.962-701)
from
$63.99
Check engine light on and vehicle running rough? Could be a failed knock sensor. This ignition knock sensor kit combines both necessary sensors and the wiring harness that joins them for a complete repair in one package.
Product Features:
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Product Features:
- Complete solution – this knock sensor kit includes two knock sensors and the wiring harness that connects them
- Plug-and-play installation – matches original wiring harness, requiring no cutting or splicing
- Quality assured – benchmarked against original components for performance and quality
- Excellent value – original equipment quality at significant cost savings
Delphi – Knock Sensor (Part No.AS10092)
from
$96.99
Delphi’s ever growing portfolio of high quality vehicle sensors are backed by stringent OE development and product validation methods. We offer a wide range of sensors, including ABS, camshaft, crankshaft, knock, EGT, MAP, temperature, throttle position, and vehicle speed sensors for a variety of vehicle applications. All of our sensors are tested and calibrated to OE standards, ensuring accurate readings, which helps to reduce comebacks.
Product Features:
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Product Features:
- Delphi knock sensors help maximize engine performance with all fuels
- Delphi knock sensors prevent against engine damage from pre-ignition knocking
- Calibrated for a wide variety of frequencies to detect shifts, and adjust to provide accurate signals to help maximize engine performance
- Flat frequency response allows the same sensor to be used on different engines and the sensor responds to knock frequencies higher than the primary frequency
- Ground-isolated design with two-wire shielded harness helps protect the sensor signal from electro-magnetic interference (EMI)
- Self-generating piezoelectric design requires no power to the sensor
Popular 2001 Subaru Legacy Ignition Sensors Categories
Most Popular Knock Sensors for 2001 Subaru Legacies
Enhance your 2001 Subaru Legacy with one of the 2 Knock Sensors we have in stock, starting at just $53.99.
Delphi – Knock Sensor (Part No.AS10092)
from
$96.99
Delphi’s ever growing portfolio of high quality vehicle sensors are backed by stringent OE development and product validation methods. We offer a wide range of sensors, including ABS, camshaft, crankshaft, knock, EGT, MAP, temperature, throttle position, and vehicle speed sensors for a variety of vehicle applications. All of our sensors are tested and calibrated to OE standards, ensuring accurate readings, which helps to reduce comebacks.
Product Features:
See More
Product Features:
- Delphi knock sensors help maximize engine performance with all fuels
- Delphi knock sensors prevent against engine damage from pre-ignition knocking
- Calibrated for a wide variety of frequencies to detect shifts, and adjust to provide accurate signals to help maximize engine performance
- Flat frequency response allows the same sensor to be used on different engines and the sensor responds to knock frequencies higher than the primary frequency
- Ground-isolated design with two-wire shielded harness helps protect the sensor signal from electro-magnetic interference (EMI)
- Self-generating piezoelectric design requires no power to the sensor
Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA3677)
from
$53.99
Carquest Premium knock sensors are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Carquest Premium knock sensors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. We utilize advanced technology to design sensors that are, in many cases, stronger than OE parts. Carquest Premium knock sensors undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium knock sensors 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.
Product Features:
See More
Product Features:
- Designed to meet or exceed OE specifications for fit, form and function
- Trivalent iridescent chromate plating prevents corrosion
- Silicone seals prevent moisture intrusion preventing false codes and sensor failure
- Wiring harnesses utilize high-temperature insulation when applicable
- Extensive design validation testing and 100% end-of-line tested
- Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
Top-Rated Ignition Sensor Brands For Your 2001 Subaru Legacy
When it comes to finding the perfect Ignition Sensor for your 2001 Subaru Legacy, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 2 trusted brands. We carry the most popular Ignition Sensor brands including Delphi, and more, all known for their exceptional customer ratings (average brand rating of 4.2 stars) and competitive prices, as low as $96.99. Purchasing a Ignition Sensor from us here at Advance Auto Parts is a smart move for both you and your 2001 Subaru Legacy, providing peace of mind with parts that meet or exceed OEM standards.
Popular Delphi 2001 Subaru Legacy Ignition Sensors
If you’re looking for a top-quality Ignition Sensor for your 2001 Subaru Legacy, Advance Auto Parts has exactly what you need with our selection of Delphi Ignition Sensors. We have 1 Delphi Ignition Sensors in stock for this fitment, all known for their durability and precision fit. With prices starting at just $96.99, you’ll find the perfect Ignition Sensor for your needs and budget. Delphi Ignition Sensors for the 2001 Subaru Legacy come highly rated, with over 1 customer reviews and an impressive average rating of 4.2 stars. Choosing a Delphi Ignition Sensor from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
from
$96.99
(1)
Knock Sensor
“The website actually picked the perfect part, amazing! Super easy install saved me 400$ and only took two minutes to replace! Dont let your mechanic t”
FAQs for 2001 Subaru Legacy Ignition Sensors
What are the best-selling Ignition Sensors for 2001 Subaru Legacies?
Out of 2 Ignition Sensors that fit 2001 Subaru Legacies, the following parts are the top sellers:
- Ignition Knock (Detonation) Sensor (12448857) – $53.99
What’s the price range for 2001 Subaru Legacy Ignition Sensors?
The prices of Ignition Sensors for the 2001 Subaru Legacy range from $53.99 up to $96.99 for the most premium parts.
What is the average price of an Ignition Sensor for a 2001 Subaru Legacy?
The average price for Ignition Sensors for the 2001 Subaru Legacy is $75.49. Keep in mind the variety of part types within our Ignition Sensor category, where you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Ignition Sensors for other Subaru Legacy model years?
What are the cheapest Ignition Sensors for my 2001 Subaru Legacy?
The cheapest 2001 Subaru Legacy Ignition Sensors we carry are:
- Ignition Knock (Detonation) Sensor (12448857) – $53.99
- Knock Sensor (25988080) – $96.99
Does Advance Auto Parts sell Ignition Sensors for any other 2001 Subaru models?
Yes. We stock Ignition Sensors for 2 other popular 2001 Subaru models. Some of the most popular are 2001 Outback Ignition Sensors, 2001 Impreza Ignition Sensors, and 2001 Forester Ignition Sensors.
What are the top-rated Ignition Sensors that fit the 2001 Subaru Legacy?
The one 2001 Subaru Legacy Ignition Sensor we have in stock is the Ignition Knock (Detonation) Sensor. It costs $53.99.
What types of Ignition Sensors do you sell for my 2001 Subaru Legacy?
We currently have just 1 Ignition Sensor in stock for a 2001 Subaru Legacy, and as of 11/2/25, it is a Knock Sensor.
Can I get help with 2001 Subaru Legacy Ignition Sensor orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Subaru Ignition Sensors and more.
What is your return policy for Subaru Legacy Ignition Sensors?
Advance Auto Parts keeps returns simple. For new Subaru Legacy Ignition Sensors and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.