Subaru Legacy Knock Sensors
Your Subaru Legacy will be happy to know that the search for the right Knock Sensors you’ve been looking for is over! Advance Auto Parts has 16 different Knock Sensors for your vehicle, ready for shipping or in-store pick up. The best part is, our Subaru Legacy Knock Sensors start from as little as $41.99.
When it comes to your Subaru Legacy, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with only top reliable Knock Sensors brands so you can shop with complete confidence. Some of our top Knock Sensors brands are Carquest Premium and Delphi. We’re sure you will get the right product to keep that Legacy running for a long time.
We even have reviews of our OEM and aftermarket Knock Sensors products to help you buy with confidence. Hear from other customers via the 13 reviews on parts for your Subaru Legacy.
Shop online, find the best price on the right product, and have it shipped right to your door. If you prefer to shop in person for the right Knock Sensors for your Legacy, visit one of our local Advance Auto Parts locations and you’ll be back on the road in no time!
Compare 19 Subaru Knock Sensors
Delphi – Knock Sensor (Part No.AS10092)
from
$87.99
Manufactured to meet or exceed OE requirements; Delphi Knock Sensors help maximize engine performance with all fuels; Delphi Knock Sensors prevent against engine damage from pre-ignition knocking.
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
Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA3677)
from
$41.99
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBC3697)
from
$41.99
MotoRad 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 MotoRad Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.
Product Features:
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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.SBC3762)
from
$114.99
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 MotoRad Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.
Product Features:
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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
$73.99
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 MotoRad Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.
Product Features:
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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
MotoRad 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 MotoRad Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.
Product Features:
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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 MotoRad Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.
Product Features:
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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.EKA1047)
from
$104.99
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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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 MotoRad 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
$86.99
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest Premium – Knock Sensor (Part No.SBC3761)
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 MotoRad Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.
Product Features:
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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.SBA5406)
from
$314.99
Ignition Knock (Detonation) Sensor
Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA4115)
from
$285.99
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA5405)
from
$169.99
Ignition Knock (Detonation) Sensor
Febi – Knock Sensor (Part No.F60203329459FEB)
from
$147.34
Knock Sensor
Hitachi – Knock Sensor (Part No.F60201339577HIT)
from
$106.58
The Hitachi OE quality knock sensor is engineered to the exact specifications of the vehicle manufacturer to ensure the replacement sensor is the same in quality and function as the part installed as first equipment.
Product Features:
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Product Features:
- OEM quality direct fit application
- Ground-isolated design with two-wire shielded harness helps protect the sensor signal from electro-magnetic interference (EMI)
- Mounting hole is the same size as OE
- Maintains OE specifications for frequency response
Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA4303)
from
$97.99
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Encore Automotive – Genuine OE Ignition Knock (Detonation) Sensor (Part No.SKS-J50005)
from
$93.99
Encore Automotive Genuine OE knock sensor detects excessive/unusual pulses caused by the engine ignition and makes proper adjustments to reduce the risk of damaging pistons. Encore Automotive is dedicated to bringing the latest original equipment technologies to the Aftermarket to provide the highest overall value.
Product Features:
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Product Features:
- Genuine OE Part
- Highly accurate engine vibration detection
- Excellent material quality
Encore Automotive – Genuine OE Ignition Knock (Detonation) Sensor (Part No.SKS-J50004)
from
$59.99
Encore Automotive Genuine OE knock sensor detects excessive/unusual pulses caused by the engine ignition and makes proper adjustments to reduce the risk of damaging pistons. Encore Automotive is dedicated to bringing the latest original equipment technologies to the Aftermarket to provide the highest overall value.
Product Features:
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Product Features:
- Genuine OE Part
- Highly accurate engine vibration detection
- Excellent material quality
FAQs for Subaru Legacy Knock Sensors
What are the most popular Knock Sensors for the Subaru Legacy?
With 5 brands you can trust, our most popular Knock Sensors for the Subaru Legacy are:
Find Your Subaru Legacy Knock Sensors by Year
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