2004 Subaru Baja Air Flow Sensors

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Keep Your 2004 Subaru Baja in Top Shape with Quality Air Flow Sensors

Whether you’re repairing or upgrading your Air Flow Sensor, using high-quality parts is key to keeping your 2004 Subaru Baja looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Air- Fuel Ratio Sensors, Ambient Air Temperature Sensors, and Air Charge Temperature 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 Air Flow Sensors from Trusted Brands

Looking for a reliable Air Flow Sensor? We’ve got you covered with options from brands you know and trust like DENSO. For example, DENSO Air Flow Sensors start at just $219.99 with an average 4.6 star rating. With over 12 reviews and a solid 5 star average, you can shop with confidence knowing other Subaru Baja owners approve.

Explore Related Parts

While you’re upgrading or replacing your Air Flow Sensor, don’t forget to check out other key components like Gas Caps and Oxygen Sensors. At Advance Auto Parts, we’re here to help you keep your 2004 Subaru Baja in peak condition, inside and out.

Essential 2004 Subaru Baja Air Flow Sensors

Carquest Premium – New Map Sensor (Part No.ECA1593)

New Map Sensor

from

$284.99
CARQUEST MAP sensors are manufactured with critical OEM components to ensure that your engine runs efficiently to reach the best gas mileage on your vehicle.

Product Features:
  • CARQUEST MAP sensors connectors are exact OE fit to ensure the proper vacuum is maintained to prevent power loss and to minimize internal contamination.
  • CARQUEST MAP sensors utilize high temperature resistant seals. Damaged seals can directly impact the vehicles fuel-to-air ratio, making it less fuel efficient.
  • CARQUEST MAP sensors are 100% individually tested for all product functionalities including proper vacuum seal and electrical output.
See More

DENSO – Wideband Oxygen Sensor: Upstream, 4 Wire, 20.47" Long, Heated, Exact Fit (Part No.234-9015)

Wideband Oxygen Sensor: Upstream, 4 Wire, 20.47" Long, Heated, Exact Fit

from

$219.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit¿ the first time.

Product Features:
  • Specifically designed to meet the increasing demands of today’s engines
  • 100 percent checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
  • Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
  • Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
  • Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination
See More

NTK – Wideband Oxygen Sensor: Air-Fuel Ratio 4 Wire, 22" Long, Heated, Direct Fit (Part No.24664)

Wideband Oxygen Sensor: Air-Fuel Ratio 4 Wire, 22" Long, Heated, Direct Fit

from

$265.99
NGK is the world’s largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. While conventional switching oxygen sensors only switch rich or lean, wideband oxygen (or Air-Fuel Ratio) sensors produce a linear output signal that allows the ECU determine exactly how rich or lean an engine is running and make continuous and precise adjustments of the air-fuel mixture to stay closest to stoichiometric, providing the best possible combustion and fewest emissions. A ceramics company at our core, uses state-of-the art technology enabling complete control of the ceramics used in our wideband oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.

Product Features:
  • OEM QUALITY: is the world’s largest supplier of original equipment oxygen sensors with renowned quality that meets or exceeds OEM specifications
  • PRODUCT ENGINEERING: Based on OE expertise, but specifically engineered for the aftermarket, Oxygen Sensors offer superior OE fit, form, function
  • OE TECHNOLOGY: Upgraded to the latest OE technologies, Oxygen Sensors are designed to reduce OE failures, enhance durability and performance
  • EXTENSIVE TESTING: OE development includes vibration and thermal shock testing. Testing during manufacturing guarantees quality and reliability
  • EASY INSTALLATION: Oxygen Sensors are equipped with OE specified, water-resistant connectors and harness accessory hardware for easy installation
  • ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning
  • ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability
See More

NTK – Switching Oxygen Sensor: 4 Wire, 68" Long, Heated, Direct Fit (Part No.24695)

Switching Oxygen Sensor: 4 Wire, 68" Long, Heated, Direct Fit

from

$239.99
NGK is the world’s largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. While conventional switching oxygen sensors only switch rich or lean, wideband oxygen (or Air-Fuel Ratio) sensors produce a linear output signal that allows the ECU determine exactly how rich or lean an engine is running and make continuous and precise adjustments of the air-fuel mixture to stay closest to stoichiometric, providing the best possible combustion and fewest emissions. A ceramics company at our core, uses state-of-the art technology enabling complete control of the ceramics used in our wideband oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.

Product Features:
  • OEM QUALITY: is the world’s largest supplier of original equipment oxygen sensors with renowned quality that meets or exceeds OEM specifications
  • PRODUCT ENGINEERING: Based on OE expertise, but specifically engineered for the aftermarket, Oxygen Sensors offer superior OE fit, form, function
  • OE TECHNOLOGY: Upgraded to the latest OE technologies, Oxygen Sensors are designed to reduce OE failures, enhance durability and performance
  • EXTENSIVE TESTING: OE development includes vibration and thermal shock testing. Testing during manufacturing guarantees quality and reliability
  • EASY INSTALLATION: Oxygen Sensors are equipped with OE specified, water-resistant connectors and harness accessory hardware for easy installation
  • ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning
  • ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability
See More

DENSO – Wideband Oxygen Sensor: Upstream, 4 Wire, 37.80" Long, Heated, Exact Fit (Part No.234-9121)

Wideband Oxygen Sensor: Upstream, 4 Wire, 37.80" Long, Heated, Exact Fit

from

$252.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit¿ the first time.

Product Features:
  • Specifically designed to meet the increasing demands of today’s engines
  • 100 percent checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
  • Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
  • Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
  • Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination
See More

Carquest Premium – Air Charge Temperature Sensor (Part No.ECA1144)

Air Charge Temperature Sensor

from

$80.99
The temperature of various systems must be reported to the engine control module (ECM) as well as other operating system controllers in the vehicle. Coolant temperature, cabin temperature, exhaust temperature and ambient temperature are just a few systems reported by a temperature sensor. The temperature sensor is fed 5 volts by the systems computer, within the sensor housing will be a thermistor, or dropping resistor whose resistance value will change as the temperature surrounding it changes. Changing resistance in the circuit will change the volt signal at the processor indicating the current operating value.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
  • Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
  • Lead frame terminal size and location determined using image dimension measuring system or 3D laser scanner.
  • Application matched components ensures system operation in like new condition.
See More

Delphi – Air Charge Temperature Sensor (Part No.TS10029)

Air Charge Temperature Sensor

from

$68.99
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:
  • Delphi temperature sensors are built with the latest OE technology
  • Delphi temperature sensors are impervious to electrical noise and interference
  • Part is validated, tested and matched to the right vehicle application
  • Our temperature sensors feature a 1-piece design from sensing element tip to connector terminals to eliminate internal connectors and failure points
See More

Most Popular Air- Fuel Ratio Sensors for 2004 Subaru Bajas

Enhance your 2004 Subaru Baja with one of the 4 Air- Fuel Ratio Sensors we have in stock, starting at just $219.99.

DENSO – Wideband Oxygen Sensor: Upstream, 4 Wire, 20.47" Long, Heated, Exact Fit (Part No.234-9015)

Wideband Oxygen Sensor: Upstream, 4 Wire, 20.47" Long, Heated, Exact Fit

from

$219.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit¿ the first time.

Product Features:
  • Specifically designed to meet the increasing demands of today’s engines
  • 100 percent checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
  • Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
  • Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
  • Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination
See More

NTK – Wideband Oxygen Sensor: Air-Fuel Ratio 4 Wire, 22" Long, Heated, Direct Fit (Part No.24664)

Wideband Oxygen Sensor: Air-Fuel Ratio 4 Wire, 22" Long, Heated, Direct Fit

from

$265.99
NGK is the world’s largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. While conventional switching oxygen sensors only switch rich or lean, wideband oxygen (or Air-Fuel Ratio) sensors produce a linear output signal that allows the ECU determine exactly how rich or lean an engine is running and make continuous and precise adjustments of the air-fuel mixture to stay closest to stoichiometric, providing the best possible combustion and fewest emissions. A ceramics company at our core, uses state-of-the art technology enabling complete control of the ceramics used in our wideband oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.

Product Features:
  • OEM QUALITY: is the world’s largest supplier of original equipment oxygen sensors with renowned quality that meets or exceeds OEM specifications
  • PRODUCT ENGINEERING: Based on OE expertise, but specifically engineered for the aftermarket, Oxygen Sensors offer superior OE fit, form, function
  • OE TECHNOLOGY: Upgraded to the latest OE technologies, Oxygen Sensors are designed to reduce OE failures, enhance durability and performance
  • EXTENSIVE TESTING: OE development includes vibration and thermal shock testing. Testing during manufacturing guarantees quality and reliability
  • EASY INSTALLATION: Oxygen Sensors are equipped with OE specified, water-resistant connectors and harness accessory hardware for easy installation
  • ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning
  • ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability
See More

DENSO – Wideband Oxygen Sensor: Upstream, 4 Wire, 37.80" Long, Heated, Exact Fit (Part No.234-9121)

Wideband Oxygen Sensor: Upstream, 4 Wire, 37.80" Long, Heated, Exact Fit

from

$252.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit¿ the first time.

Product Features:
  • Specifically designed to meet the increasing demands of today’s engines
  • 100 percent checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
  • Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
  • Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
  • Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination
See More

NTK – Switching Oxygen Sensor: 4 Wire, 68" Long, Heated, Direct Fit (Part No.24695)

Switching Oxygen Sensor: 4 Wire, 68" Long, Heated, Direct Fit

from

$239.99
NGK is the world’s largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. While conventional switching oxygen sensors only switch rich or lean, wideband oxygen (or Air-Fuel Ratio) sensors produce a linear output signal that allows the ECU determine exactly how rich or lean an engine is running and make continuous and precise adjustments of the air-fuel mixture to stay closest to stoichiometric, providing the best possible combustion and fewest emissions. A ceramics company at our core, uses state-of-the art technology enabling complete control of the ceramics used in our wideband oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.

Product Features:
  • OEM QUALITY: is the world’s largest supplier of original equipment oxygen sensors with renowned quality that meets or exceeds OEM specifications
  • PRODUCT ENGINEERING: Based on OE expertise, but specifically engineered for the aftermarket, Oxygen Sensors offer superior OE fit, form, function
  • OE TECHNOLOGY: Upgraded to the latest OE technologies, Oxygen Sensors are designed to reduce OE failures, enhance durability and performance
  • EXTENSIVE TESTING: OE development includes vibration and thermal shock testing. Testing during manufacturing guarantees quality and reliability
  • EASY INSTALLATION: Oxygen Sensors are equipped with OE specified, water-resistant connectors and harness accessory hardware for easy installation
  • ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning
  • ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability
See More

Best-Selling 2004 Subaru Baja Ambient Air Temperature Sensor

Upgrade your Baja with our best-selling Ambient Air Temperature Sensor.

Carquest Premium – Air Charge Temperature Sensor (Part No.ECA1144)

Air Charge Temperature Sensor

from

$80.99
The temperature of various systems must be reported to the engine control module (ECM) as well as other operating system controllers in the vehicle. Coolant temperature, cabin temperature, exhaust temperature and ambient temperature are just a few systems reported by a temperature sensor. The temperature sensor is fed 5 volts by the systems computer, within the sensor housing will be a thermistor, or dropping resistor whose resistance value will change as the temperature surrounding it changes. Changing resistance in the circuit will change the volt signal at the processor indicating the current operating value.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
  • Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
  • Lead frame terminal size and location determined using image dimension measuring system or 3D laser scanner.
  • Application matched components ensures system operation in like new condition.
See More

Top-Quality Air Charge Temperature Sensors for 2004 Subaru Bajas

Choose a high-quality OEM or aftermarket Air Charge Temperature Sensor for Subaru Bajas and enjoy top-notch performance from $68.99.

Delphi – Air Charge Temperature Sensor (Part No.TS10029)

Air Charge Temperature Sensor

from

$68.99
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:
  • Delphi temperature sensors are built with the latest OE technology
  • Delphi temperature sensors are impervious to electrical noise and interference
  • Part is validated, tested and matched to the right vehicle application
  • Our temperature sensors feature a 1-piece design from sensing element tip to connector terminals to eliminate internal connectors and failure points
See More

Our Top Pick for a 2004 Subaru Baja Manifold Air Pressure Sensor

Invest in a durable Manifold Air Pressure Sensor for your 2004 Subaru, knowing you’re getting trusted brands and expert craftsmanship.

Carquest Premium – New Map Sensor (Part No.ECA1593)

New Map Sensor

from

$284.99
CARQUEST MAP sensors are manufactured with critical OEM components to ensure that your engine runs efficiently to reach the best gas mileage on your vehicle.

Product Features:
  • CARQUEST MAP sensors connectors are exact OE fit to ensure the proper vacuum is maintained to prevent power loss and to minimize internal contamination.
  • CARQUEST MAP sensors utilize high temperature resistant seals. Damaged seals can directly impact the vehicles fuel-to-air ratio, making it less fuel efficient.
  • CARQUEST MAP sensors are 100% individually tested for all product functionalities including proper vacuum seal and electrical output.
See More

Top-Rated Air Flow Sensor Brands For Your 2004 Subaru Baja

When it comes to finding the perfect Air Flow Sensor for your 2004 Subaru Baja, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 4 trusted brands. We carry the most popular Air Flow Sensor brands including DENSO, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $219.99. Purchasing a Air Flow Sensor from us here at Advance Auto Parts is a smart move for both you and your 2004 Subaru Baja, providing peace of mind with parts that meet or exceed OEM standards.

Popular DENSO 2004 Subaru Baja Air Flow Sensors

If you’re looking for a top-quality Air Flow Sensor for your 2004 Subaru Baja, Advance Auto Parts has exactly what you need with our selection of DENSO Air Flow Sensors. We have 1 DENSO Air Flow Sensors in stock for this fitment, all known for their durability and precision fit. With prices starting at just $219.99, you’ll find the perfect Air Flow Sensor for your needs and budget. DENSO Air Flow Sensors for the 2004 Subaru Baja come highly rated, with over 12 customer reviews and an impressive average rating of 4.6 stars. Choosing a DENSO Air Flow Sensor from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Wideband Oxygen Sensor: Upstream, 4 Wire, 20.47" Long, Heated, Exact Fit
from $219.99
(12)
Wideband Oxygen Sensor: Upstream, 4 Wire, 20.47" Long, Heated, Exact Fit
“Happy with my purchase”

FAQs for 2004 Subaru Baja Air Flow Sensors

What are the best-selling Air Flow Sensors for 2004 Subaru Bajas?

Out of 7 Air Flow Sensors that fit 2004 Subaru Bajas, the following parts are the top sellers:

What’s the price range for 2004 Subaru Baja Air Flow Sensors?

The prices of Air Flow Sensors for the 2004 Subaru Baja range from $68.99 up to $284.99 for the most premium parts.

What is the average price of an Air Flow Sensor for a 2004 Subaru Baja?

The average price for Air Flow Sensors for the 2004 Subaru Baja is $186.87. Keep in mind the variety of part types within our Air Flow 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 Air Flow Sensors for other Subaru Baja model years?

Yes, we carry Air Flow Sensors for 2 model years of Subaru Bajas between 2003 and 2006. The following model years are the most popular for Air Flow Sensor purchases: 2006, 2005, and 2003.

What are the cheapest Air Flow Sensors for my 2004 Subaru Baja?

The cheapest 2004 Subaru Baja Air Flow Sensors we carry are:

Does Advance Auto Parts sell Air Flow Sensors for any other 2004 Subaru models?

Yes. We stock Air Flow Sensors for 3 other popular 2004 Subaru models. Some of the most popular are 2004 Legacy Air Flow Sensors, 2004 Outback Air Flow Sensors, 2004 Impreza Air Flow Sensors, and 2004 Forester Air Flow Sensors.

What are the top-rated Air Flow Sensors that fit the 2004 Subaru Baja?

The one 2004 Subaru Baja Air Flow Sensor we have in stock is the Air Charge Temperature Sensor. It costs $68.99.

What types of Air Flow Sensors do you sell for my 2004 Subaru Baja?

As of 3/1/26, these are some of the most in-demand types of Air Flow Sensors for a 2004 Subaru Baja:

Can I get help with 2004 Subaru Baja Air Flow Sensor orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Subaru Air Flow Sensors and more.

What is your return policy for Subaru Baja Air Flow Sensors?

Advance Auto Parts keeps returns simple. For new Subaru Baja Air Flow Sensors and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.