2004 Mazda 6 Oxygen Sensors
Keep Your 2004 Mazda 6 in Top Shape with Quality Oxygen Sensors
Whether you’re repairing or upgrading your Oxygen Sensor, using high-quality parts is key to keeping your 2004 Mazda 6 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Oxygen 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.
Competitive Prices and Extensive Inventory
The average price for a 2004 Mazda 6 Oxygen Sensor at Advance Auto Parts is around $84.17, with a range that starts at $56.99 and goes up to $127.99. With 21 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Oxygen Sensor: 4 Wire, 25.87" Long, Heated, Universal, Oxygen Sensor: 4 Wire, 11.77" Long, Heated, Universal Fit, and Switching Oxygen Sensor: 4 Wire, 12.25" Long, Heated, Direct Fit start at just $59.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Oxygen Sensor, don’t forget to check out other key components like Fuel Pumps and Gas Caps. At Advance Auto Parts, we’re here to help you keep your 2004 Mazda 6 in peak condition, inside and out.
Find Your Specific 2004 Mazda 6 Oxygen Sensors
Looking for the perfect Oxygen Sensor for your 2004 Mazda 6? You’re in the right place. Below, you’ll find links to various types of Oxygen Sensors that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Oxygen Sensors, ensuring durability and a precise fit for your Mazda 6. Whether you’re driving a 2004 model or another popular model year like
2013,
2014,
2015,
2016,
2017,
2018,
2019,
2020, and
2021, we’ve got you covered. Purchasing Oxygen 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 Oxygen Sensors that fit your vehicle.
Essential 2004 Mazda 6 Oxygen Sensors
Bosch – Oxygen Sensor: 4 Wire, 24.92" Long, Heated, Universal (Part No.15733)
from
$92.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
See More
Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Includes Smart Link Connector, no soldering required
- No special tools required for installation
- Seared protection tube due to 100% functional quality test
- Performance meets or exceeds OE specifications
DENSO – Oxygen Sensor: Downstream, 4 Wire, 32.48" Long, Heated, Exact Fit (Part No.234-4329)
from
$108.99
DENSO Oxygen 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. This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead poisoning for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit.
Product Features:
See More
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
Bosch – Oxygen Sensor: 4 Wire, 18.94" Long, Heated, Exact Fit (Part No.15718)
from
$50.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
See More
Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Direct Fit includes OE Connector for easy installation
- Performance meets or exceeds OE specifications
- True Direct-fit OE connectors and harness
Bosch – Wideband Oxygen Sensor: 5 Wire, 16.7" Long, Heated, Exact Fit (Part No.18088)
from
$255.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
See More
Product Features:
- Advanced Wideband sensing element for exact air/fuel measurement
- Robust sensor design increases sensor longevity
- Seared protection tube due to 100% functional quality test
- True Direct-fit
- Pre-coated threads with anti-seize compound right out of the box
NTK – Switching Oxygen Sensor: 4 Wire, 12.25" Long, Heated, Direct Fit (Part No.22118)
from
$59.99
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. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
Product Features:
See More
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
DENSO – Oxygen Sensor: Downstream, 4 Wire, 26.77" Long, Heated, Exact Fit (Part No.234-4939)
from
$105.99
DENSO Oxygen 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. This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead poisoning for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit.
Product Features:
See More
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
NTK – Switching Oxygen Sensor: 4 Wire, 12.5" Long, Heated, Direct Fit (Part No.22134)
from
$89.99
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. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
Product Features:
See More
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
NTK – Switching Oxygen Sensor: 4 Wire, 24" Long, Heated, Direct Fit (Part No.22101)
from
$83.99
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. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
Product Features:
See More
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
DENSO – Oxygen Sensor: Upstream, 4 Wire, 24.41" Long, Heated, Exact Fit (Part No.234-4399)
from
$61.99
DENSO Oxygen 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. This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead poisoning for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit.
Product Features:
See More
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
DENSO – Oxygen Sensor: 4 Wire, 11.77" Long, Heated, Universal Fit (Part No.234-4209)
from
$83.99
DENSO Oxygen 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. This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead poisoning for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit.
Product Features:
See More
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
Bosch – Wideband Oxygen Sensor: 5 Wire, 21.7" Long, Heated, Exact Fit (Part No.18112)
from
$175.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
See More
Product Features:
- Advanced Wideband sensing element for exact air/fuel measurement
- Robust sensor design increases sensor longevity
- Seared protection tube due to 100% functional quality test
- True Direct-fit
- Pre-coated threads with anti-seize compound right out of the box
DENSO – Oxygen Sensor: 4 Wire, 11.77" Long, Heated, Universal Fit (Part No.234-4210)
from
$81.99
DENSO Oxygen 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. This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead poisoning for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit.
Product Features:
See More
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
Bosch – Oxygen Sensor: 4 Wire, 21.85" Long, Heated, Exact Fit (Part No.15386)
from
$46.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
See More
Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Direct Fit includes OE Connector for easy installation
- Performance meets or exceeds OE specifications
- True Direct-fit OE connectors and harness
Bosch – Oxygen Sensor: 4 Wire, 24.02" Long, Heated, Universal (Part No.15729)
from
$79.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
See More
Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Includes Smart Link Connector, no soldering required
- No special tools required for installation
- Seared protection tube due to 100% functional quality test
- Performance meets or exceeds OE specifications
Bosch – Oxygen Sensor: 4 Wire, 24.61" Long, Heated, Exact Fit (Part No.15427)
from
$56.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
See More
Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Direct Fit includes OE Connector for easy installation
- Performance meets or exceeds OE specifications
- True Direct-fit OE connectors and harness
NTK – Switching Oxygen Sensor: 4 Wire, 36.25" Long, Heated, Direct Fit (Part No.22100)
from
$89.99
NGK is the sensor specialist for import and domestic applications. Established under the NGK product family, oxygen sensors are part of our ongoing commitment to streamlining product types and increasing coverage. A ceramic company at our core, uses cutting-edge technology to control the ceramic used in our oxygen sensors from raw material to finished product. is the world’s largest supplier and manufacturer of OE oxygen sensors. Combining expertise and innovation, oxygen sensors deliver superior fit, form, and function. oxygen sensors undergo extensive testing during manufacturing to ensure quality and reliability that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for comprehensive market support and OE application technology.
Product Features:
See More
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
NTK – Switching Oxygen Sensor: 4 Wire, 24.5" Long, Heated, Direct Fit (Part No.22116)
from
$67.99
NGK is the sensor specialist for import and domestic applications. Established under the NGK product family, oxygen sensors are part of our ongoing commitment to streamlining product types and increasing coverage. A ceramic company at our core, uses cutting-edge technology to control the ceramic used in our oxygen sensors from raw material to finished product. is the world’s largest supplier and manufacturer of OE oxygen sensors. Combining expertise and innovation, oxygen sensors deliver superior fit, form, and function. oxygen sensors undergo extensive testing during manufacturing to ensure quality and reliability that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for comprehensive market support and OE application technology.
Product Features:
See More
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
Bosch – Oxygen Sensor: 4 Wire, 25.87" Long, Heated, Universal (Part No.15741)
from
$72.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
See More
Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Includes Smart Link Connector, no soldering required
- No special tools required for installation
- Seared protection tube due to 100% functional quality test
- Performance meets or exceeds OE specifications
Bosch – Oxygen Sensor: 4 Wire, 25.79" Long, Heated, Exact Fit (Part No.13621)
from
$52.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
See More
Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Direct Fit includes OE Connector for easy installation
- Performance meets or exceeds OE specifications
- True Direct-fit OE connectors and harness
Bosch – Oxygen Sensor: 4 Wire, 36.22" Long, Heated, Exact Fit (Part No.15428)
from
$87.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
See More
Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Direct Fit includes OE Connector for easy installation
- Performance meets or exceeds OE specifications
- True Direct-fit OE connectors and harness
NTK – Switching Oxygen Sensor: 4 Wire, 52.25" Long, Heated, Direct Fit (Part No.24444)
from
$69.99
NGK is the sensor specialist for import and domestic applications. Established under the NGK product family, oxygen sensors are part of our ongoing commitment to streamlining product types and increasing coverage. A ceramic company at our core, uses cutting-edge technology to control the ceramic used in our oxygen sensors from raw material to finished product. is the world’s largest supplier and manufacturer of OE oxygen sensors. Combining expertise and innovation, oxygen sensors deliver superior fit, form, and function. oxygen sensors undergo extensive testing during manufacturing to ensure quality and reliability that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for comprehensive market support and OE application technology.
Product Features:
See More
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
Bosch – Oxygen Sensor: 4 Wire, 8.86" Long, Heated, Exact Fit (Part No.15431)
from
$67.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
See More
Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Direct Fit includes OE Connector for easy installation
- Performance meets or exceeds OE specifications
- True Direct-fit OE connectors and harness
DENSO – Oxygen Sensor: Downstream, 4 Wire, 21.65" Long, Heated, Exact Fit (Part No.234-4394)
from
$109.99
DENSO Oxygen 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. This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead poisoning for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit.
Product Features:
See More
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
DENSO – Oxygen Sensor: Downstream, 4 Wire, 18.70" Long, Heated, Exact Fit (Part No.234-4040)
from
$75.99
DENSO Oxygen 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. This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead poisoning for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit.
Product Features:
See More
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
DENSO – Oxygen Sensor: Downstream, 4 Wire, 25.59" Long, Heated, Exact Fit (Part No.234-4752)
from
$81.99
DENSO Oxygen 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. This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead poisoning for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit.
Product Features:
See More
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
DENSO – Oxygen Sensor: Downstream, 4 Wire, 12.44" Long, Heated, Exact Fit (Part No.234-4489)
from
$83.99
DENSO Oxygen 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. This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead poisoning for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit.
Product Features:
See More
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
Bosch – Oxygen Sensor: 4 Wire, 23.23" Long, Heated, Exact Fit (Part No.15555)
from
$68.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
See More
Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Direct Fit includes OE Connector for easy installation
- Performance meets or exceeds OE specifications
- True Direct-fit OE connectors and harness
NTK – Switching Oxygen Sensor: 4 Wire, 48.5" Long, Heated, Direct Fit (Part No.22115)
from
$104.99
NGK is the sensor specialist for import and domestic applications. Established under the NGK product family, oxygen sensors are part of our ongoing commitment to streamlining product types and increasing coverage. A ceramic company at our core, uses cutting-edge technology to control the ceramic used in our oxygen sensors from raw material to finished product. is the world’s largest supplier and manufacturer of OE oxygen sensors. Combining expertise and innovation, oxygen sensors deliver superior fit, form, and function. oxygen sensors undergo extensive testing during manufacturing to ensure quality and reliability that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for comprehensive market support and OE application technology.
Product Features:
See More
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
Popular 2004 Mazda 6 Oxygen Sensors Categories
Most Popular Oxygen Sensors for 2004 Mazda 6s
Enhance your 2004 Mazda 6 with one of the 21 Oxygen Sensors we have in stock, starting at just $56.99.
Bosch – Oxygen Sensor: 4 Wire, 24.02" Long, Heated, Universal (Part No.15730)
from
$89.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
See More
Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Includes Smart Link Connector, no soldering required
- No special tools required for installation
- Seared protection tube due to 100% functional quality test
- Performance meets or exceeds OE specifications
DENSO – Oxygen Sensor: 4 Wire, 11.77" Long, Heated, Universal Fit (Part No.234-4210)
from
$81.99
DENSO Oxygen 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. This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead poisoning for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit.
Product Features:
See More
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
Bosch – Oxygen Sensor: 4 Wire, 25.87" Long, Heated, Universal (Part No.15741)
from
$72.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
See More
Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Includes Smart Link Connector, no soldering required
- No special tools required for installation
- Seared protection tube due to 100% functional quality test
- Performance meets or exceeds OE specifications
NTK – Switching Oxygen Sensor: 4 Wire, 12.25" Long, Heated, Direct Fit (Part No.22118)
from
$59.99
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. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
Product Features:
See More
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
NTK – Switching Oxygen Sensor: 4 Wire, 48.5" Long, Heated, Direct Fit (Part No.22115)
from
$104.99
NGK is the sensor specialist for import and domestic applications. Established under the NGK product family, oxygen sensors are part of our ongoing commitment to streamlining product types and increasing coverage. A ceramic company at our core, uses cutting-edge technology to control the ceramic used in our oxygen sensors from raw material to finished product. is the world’s largest supplier and manufacturer of OE oxygen sensors. Combining expertise and innovation, oxygen sensors deliver superior fit, form, and function. oxygen sensors undergo extensive testing during manufacturing to ensure quality and reliability that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for comprehensive market support and OE application technology.
Product Features:
See More
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
NTK – Switching Oxygen Sensor: 4 Wire, 18.5" Long, Heated, Direct Fit (Part No.22097)
from
$63.99
NGK is the sensor specialist for import and domestic applications. Established under the NGK product family, oxygen sensors are part of our ongoing commitment to streamlining product types and increasing coverage. A ceramic company at our core, uses cutting-edge technology to control the ceramic used in our oxygen sensors from raw material to finished product. is the world’s largest supplier and manufacturer of OE oxygen sensors. Combining expertise and innovation, oxygen sensors deliver superior fit, form, and function. oxygen sensors undergo extensive testing during manufacturing to ensure quality and reliability that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for comprehensive market support and OE application technology.
Product Features:
See More
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
NTK – Switching Oxygen Sensor: 4 Wire, 36.25" Long, Heated, Direct Fit (Part No.22100)
from
$89.99
NGK is the sensor specialist for import and domestic applications. Established under the NGK product family, oxygen sensors are part of our ongoing commitment to streamlining product types and increasing coverage. A ceramic company at our core, uses cutting-edge technology to control the ceramic used in our oxygen sensors from raw material to finished product. is the world’s largest supplier and manufacturer of OE oxygen sensors. Combining expertise and innovation, oxygen sensors deliver superior fit, form, and function. oxygen sensors undergo extensive testing during manufacturing to ensure quality and reliability that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for comprehensive market support and OE application technology.
Product Features:
See More
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
NTK – Switching Oxygen Sensor: 4 Wire, 24" Long, Heated, Direct Fit (Part No.22101)
from
$83.99
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. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
Product Features:
See More
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
NTK – Switching Oxygen Sensor: 4 Wire, 24.5" Long, Heated, Direct Fit (Part No.22116)
from
$67.99
NGK is the sensor specialist for import and domestic applications. Established under the NGK product family, oxygen sensors are part of our ongoing commitment to streamlining product types and increasing coverage. A ceramic company at our core, uses cutting-edge technology to control the ceramic used in our oxygen sensors from raw material to finished product. is the world’s largest supplier and manufacturer of OE oxygen sensors. Combining expertise and innovation, oxygen sensors deliver superior fit, form, and function. oxygen sensors undergo extensive testing during manufacturing to ensure quality and reliability that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for comprehensive market support and OE application technology.
Product Features:
See More
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
Bosch – Oxygen Sensor: 4 Wire, 15.16" Long, Heated, Exact Fit (Part No.15429)
from
$91.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
See More
Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Direct Fit includes OE Connector for easy installation
- Performance meets or exceeds OE specifications
- True Direct-fit OE connectors and harness
DENSO – Oxygen Sensor: Upstream, 4 Wire, 48.43" Long, Heated, Exact Fit (Part No.234-4398)
from
$127.99
DENSO Oxygen 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. This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead poisoning for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit.
Product Features:
See More
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
Bosch – Oxygen Sensor: 4 Wire, 24.02" Long, Heated, Exact Fit (Part No.15426)
from
$115.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
See More
Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Direct Fit includes OE Connector for easy installation
- Performance meets or exceeds OE specifications
- True Direct-fit OE connectors and harness
DENSO – Oxygen Sensor: Downstream, 4 Wire, 36.22" Long, Heated, Exact Fit (Part No.234-4397)
from
$111.99
DENSO Oxygen 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. This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead poisoning for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit.
Product Features:
See More
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
DENSO – Oxygen Sensor: Downstream, 4 Wire, 24.09" Long, Heated, Exact Fit (Part No.234-4393)
from
$87.99
DENSO Oxygen 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. This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead poisoning for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit.
Product Features:
See More
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
Bosch – Oxygen Sensor: 4 Wire, 36.22" Long, Heated, Exact Fit (Part No.15428)
from
$87.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
See More
Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Direct Fit includes OE Connector for easy installation
- Performance meets or exceeds OE specifications
- True Direct-fit OE connectors and harness
Bosch – Oxygen Sensor: 4 Wire, 496.06" Long, Heated, Exact Fit (Part No.15430)
from
$84.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
See More
Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Direct Fit includes OE Connector for easy installation
- Performance meets or exceeds OE specifications
- True Direct-fit OE connectors and harness
DENSO – Oxygen Sensor: Downstream, 4 Wire, 18.70" Long, Heated, Exact Fit (Part No.234-4040)
from
$75.99
DENSO Oxygen 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. This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead poisoning for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit.
Product Features:
See More
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
DENSO – Oxygen Sensor: 4 Wire, 11.61" Long, Heated, Exact Fit (Part No.234-4190)
from
$73.99
DENSO Oxygen 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. This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead poisoning for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit.
Product Features:
See More
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
Bosch – Oxygen Sensor: 4 Wire, 8.86" Long, Heated, Exact Fit (Part No.15431)
from
$67.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
See More
Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Direct Fit includes OE Connector for easy installation
- Performance meets or exceeds OE specifications
- True Direct-fit OE connectors and harness
DENSO – Oxygen Sensor: Upstream, 4 Wire, 24.41" Long, Heated, Exact Fit (Part No.234-4399)
from
$61.99
DENSO Oxygen 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. This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead poisoning for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit.
Product Features:
See More
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
Bosch – Oxygen Sensor: 4 Wire, 24.61" Long, Heated, Exact Fit (Part No.15427)
from
$56.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
See More
Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Direct Fit includes OE Connector for easy installation
- Performance meets or exceeds OE specifications
- True Direct-fit OE connectors and harness
FAQs for 2004 Mazda 6 Oxygen Sensors
What are the best-selling Oxygen Sensors for 2004 Mazda 6s?
Out of 21 Oxygen Sensors that fit 2004 Mazda 6s, the following parts are the top sellers:
- Oxygen Sensor: 4 Wire, 25.87" Long, Heated, Universal (11410320) – $72.99
- Oxygen Sensor: 4 Wire, 11.77" Long, Heated, Universal Fit (20472100) – $81.99
- Switching Oxygen Sensor: 4 Wire, 12.25" Long, Heated, Direct Fit (20501563) – $59.99
What’s the price range for 2004 Mazda 6 Oxygen Sensors?
The prices of Oxygen Sensors for the 2004 Mazda 6 range from $56.99 up to $127.99 for the most premium parts.
What is the average price of an Oxygen Sensor for a 2004 Mazda 6?
The average price for Oxygen Sensors for the 2004 Mazda 6 is $84.17. Keep in mind the variety of part types within our Oxygen 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 Oxygen Sensors for other Mazda 6 model years?
What are the cheapest Oxygen Sensors for my 2004 Mazda 6?
The cheapest 2004 Mazda 6 Oxygen Sensors we carry are:
- Oxygen Sensor: 4 Wire, 24.61" Long, Heated, Exact Fit (18730507) – $56.99
- Switching Oxygen Sensor: 4 Wire, 12.25" Long, Heated, Direct Fit (20501563) – $59.99
- Oxygen Sensor: Upstream, 4 Wire, 24.41" Long, Heated, Exact Fit (20474840) – $61.99
- Switching Oxygen Sensor: 4 Wire, 18.5" Long, Heated, Direct Fit (20501407) – $63.99
- Switching Oxygen Sensor: 4 Wire, 24.5" Long, Heated, Direct Fit (20501383) – $67.99
Does Advance Auto Parts sell Oxygen Sensors for any other 2004 Mazda models?
Yes. We stock Oxygen Sensors for 7 other popular 2004 Mazda models. Some of the most popular are 2004 MPV Oxygen Sensors, 2004 B4000 Oxygen Sensors, 2004 B2300 Oxygen Sensors, 2004 RX-8 Oxygen Sensors, and 2004 3 Oxygen Sensors.
What are the top-rated Oxygen Sensors that fit the 2004 Mazda 6?
The one 2004 Mazda 6 Oxygen Sensor we have in stock is the Oxygen Sensor: 4 Wire, 24.61" Long, Heated, Exact Fit. It costs $56.99.
What types of Oxygen Sensors do you sell for my 2004 Mazda 6?
We currently have just 1 Oxygen Sensor in stock for a 2004 Mazda 6, and as of 11/2/25, it is an Oxygen Sensor.
Can I get help with 2004 Mazda 6 Oxygen Sensor orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Mazda Oxygen Sensors and more.
What is your return policy for Mazda 6 Oxygen Sensors?
Advance Auto Parts keeps returns simple. For new Mazda 6 Oxygen Sensors and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.