2009 Audi S4 Fuel and Emissions Systems
Find Your Specific 2009 Audi S4 Fuel and Emissions Systems
Below you will find various in-demand Audi Fuel and Emissions Systems, components and accessories for your 2009 S4. Advance Auto Parts has popular S4 parts like Fuel Pumps, Fuel Injectors, Gas Caps and more. You’ll also find aftermarket and OEM Fuel and Emissions Systems for other S4 model years including
2014,
2015,
2016,
2018,
2019,
2020,
2021,
2022,
2023 and more. Select a category of 2009 Audi S4 Fuel and Emissions Systems below and start saving instantly.
Popular 2009 Audi S4 Fuel and Emissions Systems Categories
Essential Fuel and Emissions Systems for 2009 Audi S4s
Bosch – Fuel Injector: New (Part No.62691)
from
$159.99
Bosch is a recognized OE leader in fuel systems technology, with more than 45 years of gasoline fuel injection experience. The fuel injection program provides vast coverage for Domestic, European, and Asian vehicles.
Product Features:
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Product Features:
- Guaranteed OE fit, form and function
- Manufactured of the highest quality materials
- Provides precision flow and original spray pattern for optimal performance
- Product includes top and bottom mounting o-ring
- Maintains new-car smoothness and drivability
Carquest – Fuel Injector Connector (Part No.PT2318)
from
$4.29
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.
Product Features:
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Product Features:
- Designed to OE standards for ease of installation
- All electrical connectors are 100% tested for proper mechanical and electrical fit, form and function
- Offering thousands of high-quality pigtails & sockets for nearly every electrical job
Carquest – Fuel Injector Seal Kit (Part No.274838)
from
$8.99
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.
Product Features:
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Product Features:
- Designed to OE standards for ease of installation
- High-quality materials withstand extreme conditions
- Undergoes extensive testing to ensure reliability
- As a global manufacturer of automotive aftermarket products, we maintain complete quality control throughout the manufacturing process
Bosch – Fuel Tank Sending Unit (Part No.E2030848445BOS)
from
$102.71
The Bosch Fuel Tank Sending Unit is an ideal high quality aftermarket replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.
Product Features:
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Product Features:
- Premium aftermarket replacement
- Provides performance and dependability
- Manufactured to meet OE specifications for fit, form, and function
Pierburg – Secondary Air Pump (Part No.B60102515448APG)
from
$725.85
Pierburg a global supplier to European automakers manufactures an OE-equivalent direct fit Air Pump that maintains the quality and performance of the Original Equipment it replaces. Pierburg designed a modular system of brackets, and vibration absorbing elements to ensure that the secondary air pump does not interact with its mounting location.
Product Features:
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Product Features:
- OE design
- Low noise
- Long working life
- High thermal and mechanical resistance
- Sealed bearing design
- Housing sealed to protect against contamination
- High output DC motor
- Exact OE Body and engine mounting
APA/URO Parts – Fuel Tank (Gas) Cap (Part No.E2010405983APA)
from
$45.85
APA/URO Fuel Tank Caps are manufactured to meet OE quality, and performance for reliable operation.
Product Features:
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Product Features:
- Meets OE vehicle standards
- Factory type retaining strap for user convenience
- OE quality seal ensures fuel tank emissions are maintained preventing check engine warnings.
Carquest Premium – Secondary Air Injection Pump Check Valve (Part No.EGA1181)
from
$49.99
The Secondary Air Injection system is an emission control device designed to pump fresh air into the engine exhaust system to reduce harmful emissions and convert the emission into harmless water vapor via a chemical reaction. These systems were used heavily in the pre-catalytic converter emission control period but found some application in vehicles with catalytic converter systems.
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Product Features:
- Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Elring – Elring EGR Valve Gasket (Part No.B7100180816ELR)
from
$8.03
The Elring EGR Valve Gasket is a high quality Original Equipment replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.
Product Features:
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Product Features:
- Premium Original Equipment replacement
- Provides performance and dependability
- Manufactured to meet OE specifications
Bosch – Bosch Fuel Pressure Regulator (Part No.C300056477BOS)
from
$61.92
An essential part of the Fuel System, the Fuel Pressure Regulators’ sole purpose is to maintain fuel pressure at a constant differential to manifold vacuum under all engine load conditions.
Product Features:
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Product Features:
- Corrosion resistant housing material
- Premium diaphragm materials for longer service life
- Internal precision components maintain stable fuel pressure and ensure adequate fuel return
- Meets or exceeds OEM specifications
MTC – Vacuum Check Valve (Part No.B20461321844MTC)
from
$9.41
Vacuum Check Valve
Felpro – Fuel Injector O-Ring Kit (Part No.ES 70599)
from
$7.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust
Product Features:
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Product Features:
- Meets or exceeds all original equipment specifications
- Application specific design to ensure a perfect fit
- Engineered for the sealing repair environment
- Unsurpassed quality you can trust
- Validated for fit, form, and function
Carquest Premium – Vapor Canister (Part No.CPN1736)
from
$821.99
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest Premium – Vapor Canister Purge Solenoid (Part No.CPC1845)
from
$79.99
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Delphi – Fuel Tank Cleaning Kit (Part No.FC01)
from
$12.49
When replacing a fuel pump or module, it’s extremely important to clean the tank. Existing dirt, debris, and contamination stuck in the fuel tank can clog the brand-new strainer. Delphi’s Fuel Tank Cleaning Kit (FC01) and Tool (FC02) can help clean your fuel tank in less than five minutes. The FC01 includes a low-suds solution, cloth, and gloves that works together with the FC02 to help clean those hard to reach places without having to remove the fuel tank. Visit our Resource Center for helpful tips and tricks on fuel pumps, technologies, and more: https://www.delphiautoparts.com/usa/en-US/resource-center.
Product Features:
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Product Features:
- Helps avoid premature fuel pump failure
- Lint free towel included
- Low suds formulation
- Removes harmful contaminants from the fuel tank
Bosch – Oxygen Sensor: 4 Wire, 19.69" Long, Heated, Exact Fit (Part No.18026)
from
$131.99
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:
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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 – Fuel Injector Seal (Part No.C101016838BOS)
from
$2.06
Bosch is one of the largest global suppliers of automotive products, developing, manufacturing and supplying precision OE components and systems to vehicle manufacturers and the automotive aftermarket.
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Carquest Premium – Engine Crankcase Suction Pump (Part No.EGC1282)
from
$65.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Rein – Ambient Temp Sensor (Part No.P4025342395RIN)
from
$19.57
Ambient Temp Sensor
Elring – Fuel Injector Seal (Part No.C1010681908ELR)
from
$2.51
Fuel Injector Seal
Delphi – Mass Air Flow Sensor (Part No.AF10149)
from
$223.99
100% new; Delphi OE Technology Validated to match the vehicle applications; Manufactured to meet or exceed OE requirements.
Product Features:
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Product Features:
- Delphi mass air flow sensors are the global benchmark for accuracy and signal noise
- Delphi mass air flow sensors feature high quality sensing elements for outstanding performance over a wide range of ambient temperatures
- Delphi is a manufacturer of OE mass air flow sensors since their first use over 30 years ago
- All parts are calibrated and tested to match the OE part
- Probe solution offered wherever possible to reduce repair time by eliminating the need to replace the flow tube.
- Delphi OE technology validated to match the vehicle applications
Elring – Fuel Injector O-Ring (Part No.C101262400ELR)
from
$1.09
Fuel Injector O-Ring
DENSO – First Time Fit Oxygen Sensor (Part No.C5010690491ND)
from
$171.36
Denso First Time Fit oxygen sensors are constructed of the highest quality materials available. High-quality stainless steel, porous polytetrafluoroethylene (PTFE), fluorine rubber, aluminum oxide, high-grade platinum and ceramics are used in each DENSO sensor.
Product Features:
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Product Features:
- SUPERIOR DESIGN – Maximizes engine performance and fuel efficiency while reducing harmful emissions.
- DOUBLE-PROTECTION COVER – Maintains proper unit temperature for quicker response times and protects the ceramic element against silicone and lead poisoning.
- ALUMINUM-OXIDE TRAP LAYER – Keeps silicone and lead outside the ceramic element through DENSO’s exclusive design, preventing damage to the platinum electrode.
- STAINLESS STEEL HOUSING – Resists corrosion and contamination with a rugged, watertight body.
Bosch – Bosch Oxygen Sensor (Part No.C5010389596BOS)
from
$116.76
The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to which oxygen sensors are subjected. Each element is incredibly strong for best-in-class performance and maximum service life.
Product Features:
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Product Features:
- OE-Equivalent.
- Direct fit for easy installation.
- OE Style connectors and wire lengths.
- Base ceramic probe of Zirconium and Yttrium.
- Patented Platinum Power Grid.
Felpro – O-RING (Part No.71857)
from
$3.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust
Product Features:
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Product Features:
- Meets or exceeds all original equipment specifications
- Design to ensure a perfect fit
- Engineered and manufactured specifically for the repair environment
- Unsurpassed quality you can trust
- Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
VDO – Electric Fuel Pump Assembly (Part No.E3001947460VDO)
from
$646.25
The VDO Electric Fuel Pump Assembly meets or exceeds the OE specifications for fit, durability and performance.
Product Features:
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Product Features:
- OE-Equivalent electric fuel pump
- Direct fit for easy installation
- OE connections and fittings
- Highly efficient turbine design
- Designed for quieter operation
Delphi – Fuel Pump Module Assembly (Part No.FG2093)
from
$459.99
100 years of OE experience, supplier to the world’s top automakers, OE Heritage and knowledge built into every aftermarket part, comprehensive portfolio for a wide range of vehicles and model years.
Product Features:
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Product Features:
- Delphi is a global OE manufacturer and all fuel pumps are built to Delphi’s OE standards
- Empty float height and float retention matches OE specifications and guarantees correct gas gauge reading
- Lower amperage draws less load on vehicle’s electrical system
- Part is validated, tested and matched to the right vehicle application
- Always be sure to check and clean fuel tank to avoid unnecessary returns
- Lower failure rates due to its innovative design and durability
VDO – Electric Fuel Pump (Part No.E3000126598VDO)
from
$466.43
The VDO Electric Fuel Pump meets or exceeds the OE specifications for fit, durability and performance.
Product Features:
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Product Features:
- OE-Equivalent electric fuel pump.
- Direct fit for easy installation.
- OE connections and fittings.
- Highly efficient turbine design.
- Designed for quieter operation.
VDO – Electric Fuel Pump Assembly (Part No.E3001136716VDO)
from
$589.84
The VDO Electric Fuel Pump Assembly meets or exceeds the OE specifications for fit, durability and performance.
Product Features:
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Product Features:
- OE-Equivalent electric fuel pump
- Direct fit for easy installation
- OE connections and fittings
- Highly efficient turbine design
- Designed for quieter operation
Upgrade your 2009 Audi S4 with Top-Quality Fuel and Emissions Systems
When it comes to maintaining or upgrading your 2009 Audi S4, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Audi or enhancing its overall performance, Fuel and Emissions Systems are key to keeping your S4 functioning at its best. At Advance Auto Parts, we offer a wide selection of 48 Fuel and Emissions Systems for the 2009 Audi S4, designed to meet your needs without breaking the bank.
From
Fuel Pump
replacements to
Fuel Injectors
upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.
Affordable Prices and Wide Selection
Shopping for Fuel and Emissions Systems for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Fuel and Emissions Systems for your 2009 Audi S4 at great prices.
Our Fuel and Emissions Systems inventory for this model
ranges from just $1.09 to $821.99, with
an average price of $119.55.
Our 48 Fuel and Emissions Systems in stock come from 18 trusted brands, so you’re sure to find the right part for your 2009 Audi S4 without overspending.
Top Brands and High Customer Satisfaction
Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 2009 Audi S4, we stock popular OEM and aftermarket Fuel and Emissions Systems from top names
like FELPRO Bosch, and more.
FELPRO Fuel and Emissions Systems
start at just $3.99 and boast an impressive 5 stars average rating from customers.
With 276 customer reviews and counting, our 2009 Audi S4 Fuel and Emissions Systems have a strong track record of reliability, ensuring you can trust your purchase.
Explore Related Parts and More
While you’re here, don’t forget to check out other essential categories that go hand in hand with Fuel and Emissions System upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants
and more to make sure your 2009 Audi S4 is always ready to roll. We’re committed to providing you with everything you need to keep your S4 in top shape, all in one place.
Start shopping confidently below for your 2009 Audi S4!
Best-Selling Fuel Pumps for 2009 Audi S4s
Enhance the driving experience in your Audi with 3 quality Fuel Pump components, starting at $3.99.
Felpro – O-RING (Part No.71857)
from
$3.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust
Product Features:
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Product Features:
- Meets or exceeds all original equipment specifications
- Design to ensure a perfect fit
- Engineered and manufactured specifically for the repair environment
- Unsurpassed quality you can trust
- Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
Continental – Fuel Pump Module Assembly (Part No.A2C53103692Z)
from
$513.99
Continental fuel modules are a genuine OEM part. They are identical in fit, form, and function and provide the genuine quality of OE components supplied to auto manufacturers worldwide. Professional technicians and DIYers alike want quality products for ease of installation, fit, and performance. Continental fuel modules are designed for long service life and simplified installation. They are built in OE ISO TS certified facilities and manufactured to the highest quality standards. They offer dependable performance and robust design by being a genuine OEM part while still maintaining a competitive price.
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VDO – Electric Fuel Pump Assembly (Part No.E3001273795VDO)
from
$492.90
The VDO Electric Fuel Pump Assembly meets or exceeds the OE specifications for fit, durability and performance.
Product Features:
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Product Features:
- OE-Equivalent electric fuel pump
- Direct fit for easy installation
- OE connections and fittings
- Highly efficient turbine design
- Designed for quieter operation
Most Popular 2009 Audi S4 Fuel Injectors
Customize your Audi with 15 Fuel Injectors products
like Air Flow Meters and Mass Air,
Fuel Injectors, and
Fuel Injector O-Ring Kits, all
priced under $162.99.
Felpro – Fuel Injector O-Ring Kit (Part No.ES 70599)
from
$7.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust
Product Features:
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Product Features:
- Meets or exceeds all original equipment specifications
- Application specific design to ensure a perfect fit
- Engineered for the sealing repair environment
- Unsurpassed quality you can trust
- Validated for fit, form, and function
Carquest – Fuel Injector Connector (Part No.PT2318)
from
$4.29
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.
Product Features:
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Product Features:
- Designed to OE standards for ease of installation
- All electrical connectors are 100% tested for proper mechanical and electrical fit, form and function
- Offering thousands of high-quality pigtails & sockets for nearly every electrical job
Carquest Premium – Remanufactured Fuel Injector (Part No.A212-2525)
from
$41.99
CARQUEST’S line of remanufactured OEM fuel injectors are remanufactured using a proven 15 step process at a state-of-the-art remanufacturing facility in the U.S.A. Each injector is 100% tested under multiple operating conditions to ensure each injector meets or exceeds OE specifications for flow rate, spray pattern, coil resistance, form, fit and function. Each injector includes new external seals and O-rings.
Product Features:
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Product Features:
- Each unit is 100% tested to OE specifications
- Includes new O-rings and seals made of premium OE quality materials
- Includes application specific technical bulletin, where applicable
Carquest – Fuel Injector Seal Kit (Part No.274838)
from
$8.99
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.
Product Features:
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Product Features:
- Designed to OE standards for ease of installation
- High-quality materials withstand extreme conditions
- Undergoes extensive testing to ensure reliability
- As a global manufacturer of automotive aftermarket products, we maintain complete quality control throughout the manufacturing process
Bosch – Bosch Fuel Pressure Regulator (Part No.C300056477BOS)
from
$61.92
An essential part of the Fuel System, the Fuel Pressure Regulators’ sole purpose is to maintain fuel pressure at a constant differential to manifold vacuum under all engine load conditions.
Product Features:
See More
Product Features:
- Corrosion resistant housing material
- Premium diaphragm materials for longer service life
- Internal precision components maintain stable fuel pressure and ensure adequate fuel return
- Meets or exceeds OEM specifications
Wells Vehicle Electronics – Fuel Injection Pressure Regulator (Part No.5G1568)
from
$52.99
WVE is a leading source of advanced vehicle electronics components for replacement applications in the automotive aftermarket and original equipment applications. WVE offers high-technology manufacturing along with innovative solutions and improvements to
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Delphi – Mass Air Flow Sensor (Part No.AF10695)
from
$162.99
Mass Air Flow Sensor
Product Features:
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Product Features:
- All parts are calibrated and tested to match the OE part
- Delphi mass air flow sensors feature high quality sensing elements for outstanding performance over a wide range of ambient temperatures
- Delphi is a manufacturer of OE mass air flow sensors since their first use over 30 years ago
- All parts are calibrated and tested to match the OE part
- Probe solution offered wherever possible to reduce repair time by eliminating the need to replace the flow tube
- Delphi OE technology validated to match the vehicle applications
Bosch – Fuel Injector: New (Part No.62691)
from
$159.99
Bosch is a recognized OE leader in fuel systems technology, with more than 45 years of gasoline fuel injection experience. The fuel injection program provides vast coverage for Domestic, European, and Asian vehicles.
Product Features:
See More
Product Features:
- Guaranteed OE fit, form and function
- Manufactured of the highest quality materials
- Provides precision flow and original spray pattern for optimal performance
- Product includes top and bottom mounting o-ring
- Maintains new-car smoothness and drivability
Cardone – Remanufactured Mass Air Flow Sensor (Part No.74-10120)
from
$141.99
CARDONE Remanufactured Mass Air Flow Sensors (MAFS) precisely track O.E. output curves and maintain specific tolerances to ensure accurate scan tool readings for proper operation. 100% re-soldering of critical components ensures superior electrical connections, eliminates intermittent failures and lengthens product life. With CARDONE Mass Air Flow Sensors (MAFS), you can expect smooth vehicle performance.
Product Features:
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Product Features:
- 100% re-solder of critical components ensures superior electrical connections, no intermittent failures and longer product life.
- On-car vehicle validation routines ensure that modules meet all form, fit, durability and performance requirements.
- All modules are 100% tested with automated computer test equipment to ensure full functionality and reliability.
- Our sensors precisely track O.E. output curves and maintain spec tolerances to ensure accurate feedback to the vehicle┐s engine control management system.
- Components are rated to handle demanding temperature variations for optimum reliability in every environment.
- As a remanufactured Original Equipment part, this unit guarantees a perfect vehicle fit.
- Our remanufacturing process is earth-friendly, as it reduces the energy and raw material needed to make a new part by 80%.
Wells Vehicle Electronics – Fuel Injection Pressure Regulator (Part No.5G1368)
from
$58.99
WVE is a leading source of advanced vehicle electronics components for replacement applications in the automotive aftermarket and original equipment applications. WVE offers high-technology manufacturing along with innovative solutions and improvements to
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Bosch – Fuel Injector Seal Kit (Part No.C106016844BOS)
from
$10.99
Bosch is one of the largest global suppliers of automotive products, developing, manufacturing and supplying precision OE components and systems to vehicle manufacturers and the automotive aftermarket. This 5-piece kit contains 3 O-rings (black), 1 support ring (gray), and 1 protective cap (yellow). Use one kit per injector.
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Victor Reinz – Fuel Injector O-Ring Kit (Part No.18-10027-01)
from
$8.79
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.
Product Features:
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Product Features:
- Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
Carquest Premium – Fuel Injector Connector (Part No.PTA1064)
from
$4.29
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
See More
Bosch – Fuel Injector Seal (Part No.C101016838BOS)
from
$2.06
Bosch is one of the largest global suppliers of automotive products, developing, manufacturing and supplying precision OE components and systems to vehicle manufacturers and the automotive aftermarket.
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Elring – Fuel Injector O-Ring (Part No.C101262400ELR)
from
$1.09
Fuel Injector O-Ring
Top Picks for 2009 Audi S4 Gas Caps
Upgrade Audi S4s with top-quality Gas Caps parts, including 2 OEM and aftermarket selections for your 2009 model.
Carquest Premium – Fuel Cap: 10827, Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10827)
from
$16.49
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
Product Features:
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Product Features:
- Passes all state and federal emissions tests
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
Carquest Premium – Locking Fuel Cap (Part No.10597)
from
$21.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
Product Features:
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Product Features:
- Protects your fuel from theft and vandalism
- Passes all state and federal emissions tests
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
In-Demand Air Flow Sensors for 2009 Audi S4s
Select from 7 premium Air Flow Sensors parts for your 2009 Audi S4, with prices ranging from $11.99 to $234.99.
Rein – Thermo Switch (Part No.ELT0059)
from
$11.99
Electrical parts control all aspects of vehicles on the road today. Replacing these components when they are starting to fail will ensure your vehicle has maximum performance and fuel economy. This is why Rein Automotive electrical parts are application specific and match the design and function of the OE parts.
Product Features:
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Product Features:
- Tested to ensure maximum performance
- Manufactured to strict engineering standards/specifications in materials and tolerances
- Long life and durability
- Made by the OE manufacturer
DENSO – Wideband Oxygen Sensor: Upstream, 5 Wire, 28.74" Long, Heated, Exact Fit (Part No.234-5028)
from
$234.99
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:
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Product Features:
- Specifically designed to meet the increasing demands of today’s engines
- 100% 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 – First Time Fit Oxygen Sensor (Part No.C5010690491ND)
from
$171.36
Denso First Time Fit oxygen sensors are constructed of the highest quality materials available. High-quality stainless steel, porous polytetrafluoroethylene (PTFE), fluorine rubber, aluminum oxide, high-grade platinum and ceramics are used in each DENSO sensor.
Product Features:
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Product Features:
- SUPERIOR DESIGN – Maximizes engine performance and fuel efficiency while reducing harmful emissions.
- DOUBLE-PROTECTION COVER – Maintains proper unit temperature for quicker response times and protects the ceramic element against silicone and lead poisoning.
- ALUMINUM-OXIDE TRAP LAYER – Keeps silicone and lead outside the ceramic element through DENSO’s exclusive design, preventing damage to the platinum electrode.
- STAINLESS STEEL HOUSING – Resists corrosion and contamination with a rugged, watertight body.
Bosch – Bosch Oxygen Sensor (Part No.C5010389596BOS)
from
$116.76
The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to which oxygen sensors are subjected. Each element is incredibly strong for best-in-class performance and maximum service life.
Product Features:
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Product Features:
- OE-Equivalent.
- Direct fit for easy installation.
- OE Style connectors and wire lengths.
- Base ceramic probe of Zirconium and Yttrium.
- Patented Platinum Power Grid.
Carquest Premium – Ambient Air Temperature Sensor (Part No.WTA2018)
from
$60.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
See More
Carquest Premium – Ambient Air Temperature Sensor (Part No.WTA1106)
from
$32.99
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:
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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.
Rein – Ambient Temp Sensor (Part No.P4025342395RIN)
from
$19.57
Ambient Temp Sensor
Most Sold 2009 Audi S4 Oxygen Sensors
Explore our best-selling Audi parts for the 2009 S4 among 9 OEM and aftermarket options starting from $48.77.
Bosch – Oxygen Sensor: 4 Wire, 68.7" Long, Heated, Exact Fit (Part No.16978)
from
$111.99
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.
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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, 24.92" Long, Heated, Universal (Part No.15733)
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$80.99
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:
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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 – Wideband Oxygen Sensor: 5 Wire, 28.74" Long, Heated, Exact Fit (Part No.17353)
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$131.99
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:
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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
ACERA – ACERA Oxygen Sensor (Part No.C5010566952ACR)
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$48.77
ACERA’s patented Oxygen / Lambda sensor technology is crafted with the highest precision an designed to endure the toughest environment in the vehicles exhaust system. ACERA has over 20 years of experience in research, and developing, Oxygen Sensors and is one of the few manufacturers in the world that actually integrates the Zirconium Oxide ceramic technology directly into the sensor’s core. Starting with the research and development to formulate the YSZ powder, ACERA then integrates the patented Zirconium Oxide (ZrO2) ceramic center core producing a highly durable, long lasting oxygen sensor that provides a much quicker time to operational temperature with minimal variation. To ensure the highest quality and stability, every new oxygen sensor undergoes a pressurized sealing test as well as a multifunction simulated exhaust bench test.
Product Features:
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Product Features:
- Premium OE Connector
- Premium stainless steel body protecting against extreme heat and corrosion
- Double layer protection for added durability and long life
- Monolithic ceramic element allowing faster operating temperature
- Aluma element surface minimizing thermal variation
- Aluma protection layer that protects the sensor catalyst from harmful gas
- Isolated circuitry that reduces signal noise
- Patented Zirconium Oxide (ZrO2) material
- 100% inspection and testing of product functions on every sensor
Bosch – Universal Oxygen Sensor (Part No.C5010126014BOS)
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$84.18
The Bosch universal oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to which oxygen sensors are subjected. Each element is incredibly strong for best-in-class performance and maximum service life. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
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Product Features:
- OE-Equivalent.
- Direct fit for easy installation.
- OE Style connectors and wire lengths.
- Base ceramic probe of Zirconium and Yttrium.
- Patented Platinum Power Grid.
DENSO – First Time Fit Air Fuel Ratio Sensor (Part No.C5015689987ND)
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$203.41
DENSO a global supplier to automakers manufactures an OE-equivalent direct fit air fuel ratio sensor that maintains the quality and performance of the Original Equipment it replaces. DENSO continues to innovate with the latest development in air fuel ratio sensors. These components, also known as wide-band oxygen sensors, have a broader response range to provide much finer control of air/fuel mixtures over a greater variety of operating conditions.
Product Features:
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Product Features:
- Tarnish-proof platinum electrodes provides longer life and maintains accuracy
- Quick-response planar zirconia element can quickly detect oxygen concentration
- Measures A/F ratios from approximately 12:1 to 19:1
- Increased performance by mapping a/f ratios throughout rpm range
- Reduces emissions by keeping the air-fuel mixture at an optimum ratio
Bosch – Oxygen Sensor (Part No.C5010417731BOS)
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$180.49
The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to which oxygen sensors are subjected. Each element is incredibly strong for best-in-class performance and maximum service life.
Product Features:
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Product Features:
- OE-Equivalent.
- Direct fit for easy installation.
- OE Style connectors and wire lengths.
- Base ceramic probe of Zirconium and Yttrium.
- Patented Platinum Power Grid.
DENSO – Oxygen Sensor: 4 Wire, 69.21" Long, Heated, Exact Fit (Part No.234-4874)
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$135.99
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 posining for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit, the first time.
Product Features:
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Product Features:
- Specifically designed to meet the increasing demands of today’s engines
- 100% 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, 59" Long, Heated, Direct Fit (Part No.25621)
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$119.99
NTK 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, NTK 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:
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Product Features:
- OEM QUALITY: NTK 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, NTK Oxygen Sensors offer superior OE fit, form, function
- OE TECHNOLOGY: Upgraded to the latest OE technologies, NTK 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: NTK 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
- NTK ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability
Top-Rated Fuel and Emissions Systems Brands For Your 2009 Audi S4
Shop for the best-rated brands offering Fuel and Emissions Systems and other products for your 2009 Audi S4s. Below you’ll find some of our best rated Fuel and Emissions Systems from FELPRO and Bosch, and more. Fuel and Emissions Systems from these brands that fit a 2009 S4 start at just $2.06 and are rated as high as 5 stars. OEM and aftermarket Fuel and Emissions Systems don’t get more top quality, durable, and affordable than from the brands below.
Popular FELPRO 2009 Audi S4 Fuel and Emissions Systems
When it comes to maintaining or upgrading your 2009 Audi S4, using quality Fuel and Emissions Systems is essential to ensure durability and a perfect fit. FELPRO ticks all of those boxes. We offer a wide selection of FELPRO Fuel and Emissions Systems, specifically designed for the 2009 Audi S4. With over 2 FELPRO brand Fuel and Emissions Systems in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $3.99, with an average price of just $5.74. Plus, with over 109 customer reviews and an average rating of 5 stars, you can trust that our FELPRO Fuel and Emissions Systems will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
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$7.49
$7.49
(109)
“Replaced the boring in my TBSS fuel injectors and there is no more leaks.”
Popular Bosch 2009 Audi S4 Fuel and Emissions Systems
Bosch auto parts is one of the highest quality Fuel and Emissions System brands in the market. Any 2009 Audi S4 owner should feel confident when installing genuine Bosch parts in their vehicle. To ensure the best fit and performance for your 2009 S4, Advance Auto Parts carries a full inventory of 10 Bosch Fuel and Emissions Systems. Plus you will be keeping your Audi in peak condition while saving money because prices on these Bosch Fuel and Emissions Systems range from $2.06 to $180.49, plus, with more than 146 customer reviews and an impressive 5 stars average rating, you can be confident the Fram Fuel and Emissions Systems below will deliver on both quality and value.
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$131.99
$131.99
This product is not rated
Wideband Oxygen Sensor: 5 Wire, 28.74" Long, Heated, Exact Fit
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FAQs for 2009 Audi S4 Fuel and Emissions Systems
Which Fuel and Emissions Systems are best-sellers for 2009 Audi S4s?
Out of 48 Fuel and Emissions Systems that fit 2009 Audi S4s, the following parts are the top sellers:
- Fuel Injector O-Ring Kit (3504360) – $7.49
- Fuel Tank Cleaning Kit (11692237) – $12.49
- Fuel Injector Connector (11477998) – $4.29
What’s the price range for 2009 Audi S4 Fuel and Emissions Systems?
Fuel and Emissions System prices for the 2009 Audi S4 start at $1.09 and go up to $821.99 for the most premium parts.
What’s the average price of a Fuel and Emissions System for a 2009 Audi S4?
The average price for Fuel and Emissions Systems for the 2009 Audi S4 is $119.55. Keep in mind the variety of part types within our Fuel and Emissions System category so you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Fuel and Emissions Systems for other Audi S4 model years?
What are the cheapest Fuel and Emissions Systems for my 2009 Audi S4?
The cheapest 2009 Audi S4 Fuel and Emissions Systems we carry in stock are:
- Fuel Injector O-Ring (12053420) – $1.09
- Fuel Injector Seal (10740455) – $2.06
- Fuel Injector Seal (11474383) – $2.51
- O-RING (12005668) – $3.99
- Fuel Injector Connector (11477998) – $4.29
What types of Fuel and Emissions Systems do you sell for my 2009 Audi S4?
As of 2/5/25, these are some of the most in-demand types of Fuel and Emissions Systems for a 2009 Audi S4:
Can I get help with 2009 Audi S4 Fuel and Emissions System orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Audi Fuel and Emissions Systems and more.
What is your return policy for Audi S4 Fuel and Emissions Systems?
Advance Auto Parts keeps returns simple. For new Audi S4 Fuel and Emissions Systems and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
