2004 Subaru Outback Air Flow Sensors

Please Select your Vehicle to See Exact Fit Parts

Keep Your 2004 Subaru Outback 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 Outback looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including MAP-Barometric Pressures and Air- Fuel Ratio 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 $191.99 with an average 4.6 star rating. With over 52 reviews and a solid 5.0 star average, you can shop with confidence knowing other Subaru Outback 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 Outback in peak condition, inside and out.

Essential 2004 Subaru Outback Air Flow Sensors

DENSO – "DENSO Air-Fuel Ratio Sensor 4 Wire, Direct Fit, Heated, Wire Length: 14.76"", 234-9314" (Part No.234-9314)

"DENSO Air-Fuel Ratio Sensor 4 Wire, Direct Fit, Heated, Wire Length: 14.76"", 234-9314"

from

$259.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
See More

DENSO – "DENSO Wideband Oxygen Sensor: Upstream, 4 Wire, 10.63"" Long, Heated, Exact Fit, 234-9035" (Part No.234-9035)

"DENSO Wideband Oxygen Sensor: Upstream, 4 Wire, 10.63"" Long, Heated, Exact Fit, 234-9035"

from

$199.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
See More

DENSO – "DENSO Wideband Oxygen Sensor: Upstream, 4 Wire, 19.69"" Long, Heated, Exact Fit, 234-9123" (Part No.234-9123)

"DENSO Wideband Oxygen Sensor: Upstream, 4 Wire, 19.69"" Long, Heated, Exact Fit, 234-9123"

from

$184.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
See More

DENSO – "DENSO Wideband Oxygen Sensor: Upstream, 4 Wire, 21.85"" Long, Heated, Exact Fit, 234-9122" (Part No.234-9122)

"DENSO Wideband Oxygen Sensor: Upstream, 4 Wire, 21.85"" Long, Heated, Exact Fit, 234-9122"

from

$191.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
See More

DENSO – "DENSO Wideband Oxygen Sensor: Upstream, 4 Wire, 16.34"" Long, Heated, Exact Fit, 234-9136" (Part No.234-9136)

"DENSO Wideband Oxygen Sensor: Upstream, 4 Wire, 16.34"" Long, Heated, Exact Fit, 234-9136"

from

$257.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
See More

DENSO – "DENSO Wideband Oxygen Sensor: Upstream, 4 Wire, 19.88"" Long, Heated, Exact Fit, 234-9097" (Part No.234-9097)

"DENSO Wideband Oxygen Sensor: Upstream, 4 Wire, 19.88"" Long, Heated, Exact Fit, 234-9097"

from

$209.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
See More

DENSO – "DENSO Wideband Oxygen Sensor: Upstream, 4 Wire, 7.87"" Long, Heated, Exact Fit, 234-9047" (Part No.234-9047)

"DENSO Wideband Oxygen Sensor: Upstream, 4 Wire, 7.87"" Long, Heated, Exact Fit, 234-9047"

from

$173.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
See More

DENSO – "DENSO Wideband Oxygen Sensor: Upstream, 4 Wire, 12.91"" Long, Heated, Exact Fit, 234-9138" (Part No.234-9138)

"DENSO Wideband Oxygen Sensor: Upstream, 4 Wire, 12.91"" Long, Heated, Exact Fit, 234-9138"

from

$239.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
See More

DENSO – DENSO Manifold Absolute Pressure Sensor, 198-0004 (Part No.198-0004)

DENSO Manifold Absolute Pressure Sensor, 198-0004

from

$327.99
DENSO’s MAP sensors offer leading edge sensing technology which helps controls fuel injection more precisely. They are compact lightweight and designed with fewer connections improving performance and reliability. DENSO’s MAP sensors have high detection accuracy which reduces emissions.
See More

DENSO – DENSO Manifold Absolute Pressure Sensor, 198-0003 (Part No.198-0003)

DENSO Manifold Absolute Pressure Sensor, 198-0003

from

$362.99
DENSO’s MAP sensors offer leading edge sensing technology which helps controls fuel injection more precisely. They are compact lightweight and designed with fewer connections improving performance and reliability. DENSO’s MAP sensors have high detection accuracy which reduces emissions.
See More

Carquest Premium – Carquest New Map Sensor, ECA2278 (Part No.ECA2278)

Carquest New Map Sensor, ECA2278

from

$322.99
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.
See More

Carquest Premium – Carquest Manifold Absolute Pressure Sensor, ECA2273 (Part No.ECA2273)

Carquest Manifold Absolute Pressure Sensor, ECA2273

from

$303.99
Pressure sensors are used within several operating systems on the vehicle. Subjects in this category measure the pressure of both liquid and air to include air in a positive pressure and negative pressure range. Pressure sensors report out as the result of an electrical device called a strain gauge which produces an analog or digital signal output dependent on the needs of the circuit. Pressures may be very low such as barometric pressure, or extremely high such as in a high-pressure fuel injection system.
See More

DENSO – DENSO Manifold Absolute Pressure Sensor, 198-0001 (Part No.198-0001)

DENSO Manifold Absolute Pressure Sensor, 198-0001

from

$369.99
DENSO’s MAP sensors offer leading edge sensing technology which helps controls fuel injection more precisely. They are compact lightweight and designed with fewer connections improving performance and reliability. DENSO’s MAP sensors have high detection accuracy which reduces emissions.
See More

Carquest Premium – Carquest New Map Sensor, ECE1501 (Part No.ECE1501)

Carquest New Map Sensor, ECE1501

from

$363.99
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.
See More

Carquest Premium – Carquest New Map Sensor, ECA2431 (Part No.ECA2431)

Carquest New Map Sensor, ECA2431

from

$263.99
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.
See More

Most Popular MAP-Barometric Pressures for 2004 Subaru Outbacks

Enhance your 2004 Subaru Outback with one of the 2 MAP-Barometric Pressures we have in stock, starting at just $303.99.

Carquest Premium – Carquest Manifold Absolute Pressure Sensor, ECA2273 (Part No.ECA2273)

Carquest Manifold Absolute Pressure Sensor, ECA2273

from

$303.99
Pressure sensors are used within several operating systems on the vehicle. Subjects in this category measure the pressure of both liquid and air to include air in a positive pressure and negative pressure range. Pressure sensors report out as the result of an electrical device called a strain gauge which produces an analog or digital signal output dependent on the needs of the circuit. Pressures may be very low such as barometric pressure, or extremely high such as in a high-pressure fuel injection system.
See More

DENSO – DENSO Manifold Absolute Pressure Sensor, 198-0003 (Part No.198-0003)

DENSO Manifold Absolute Pressure Sensor, 198-0003

from

$362.99
DENSO’s MAP sensors offer leading edge sensing technology which helps controls fuel injection more precisely. They are compact lightweight and designed with fewer connections improving performance and reliability. DENSO’s MAP sensors have high detection accuracy which reduces emissions.
See More

Best-Selling 2004 Subaru Outback Air- Fuel Ratio Sensor

Upgrade your Outback with our best-selling Air- Fuel Ratio Sensor with a 5 Starts rating across 13 reviews.

DENSO – "DENSO Wideband Oxygen Sensor: Upstream, 4 Wire, 21.85"" Long, Heated, Exact Fit, 234-9122" (Part No.234-9122)

"DENSO Wideband Oxygen Sensor: Upstream, 4 Wire, 21.85"" Long, Heated, Exact Fit, 234-9122"

from

$191.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
See More

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

When it comes to finding the perfect Air Flow Sensor for your 2004 Subaru Outback, 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 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 $191.99. Purchasing a Air Flow Sensor from us here at Advance Auto Parts is a smart move for both you and your 2004 Subaru Outback, providing peace of mind with parts that meet or exceed OEM standards.

Popular DENSO 2004 Subaru Outback Air Flow Sensors

If you’re looking for a top-quality Air Flow Sensor for your 2004 Subaru Outback, 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 $191.99, you’ll find the perfect Air Flow Sensor for your needs and budget. DENSO Air Flow Sensors for the 2004 Subaru Outback come highly rated, with over 13 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.
"DENSO Wideband Oxygen Sensor: Upstream, 4 Wire, 21.85"" Long, Heated, Exact Fit, 234-9122"
from $191.99
(13)
"DENSO Wideband Oxygen Sensor: Upstream, 4 Wire, 21.85"" Long, Heated, Exact Fit, 234-9122"
“Happy with bank 1 O2 sensor , no more check engine light. Was worried about fit but it fit my 2005 forester like a champ”

FAQs for 2004 Subaru Outback Air Flow Sensors

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

Out of 3 Air Flow Sensors that fit 2004 Subaru Outbacks, the following parts are the top sellers:

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

The prices of Air Flow Sensors for the 2004 Subaru Outback range from $191.99 up to $362.99 for the most premium parts.

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

The average price for Air Flow Sensors for the 2004 Subaru Outback is $286.32. 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 Outback model years?

Yes, we carry Air Flow Sensors for 17 model years of Subaru Outbacks between 2000 and 2019. The following model years are the most popular for Air Flow Sensor purchases: 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, and 2011.

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

The cheapest 2004 Subaru Outback 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 Impreza Air Flow Sensors, 2004 Forester Air Flow Sensors, and 2004 Baja Air Flow Sensors.

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

The one 2004 Subaru Outback Air Flow Sensor we have in stock is the "DENSO Wideband Oxygen Sensor: Upstream, 4 Wire, 21.85"" Long, Heated, Exact Fit, 234-9122". It is rated 5 stars and costs $191.99.

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

As of 8/2/26, these are some of the most in-demand types of Air Flow Sensors for a 2004 Subaru Outback:

Can I get help with 2004 Subaru Outback 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 Outback Air Flow Sensors?

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