2004 Audi S4 Fuel and Emissions Systems

Essential 2004 Audi S4 Fuel and Emissions Systems

Dorman – Evaporative Emissions Purge Solenoid Valve (Part No.911-800)

Evaporative Emissions Purge Solenoid Valve

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$52.99
Engineered for a perfect fit and plug-and-play installation, this vapor canister purge valve is a direct replacement for the original equipment purge valve. It is critical to the evaporative emissions system and fulfills government requirements.

Product Features:
  • Direct replacement – this vapor canister purge valve fits and functions like original equipment to ensure proper function of your vehicle’s evaporative emissions system
  • Quality construction – manufactured from premium materials for a long service life
  • Excellent value – original equipment quality at a lower price
  • Quality tested – has undergone testing to ensure proper fit and performance
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Carquest Premium – Remanufactured Fuel Injector (Part No.A212-2525)

Remanufactured Fuel Injector

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$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:
  • 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
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Carquest Premium – Multi Purpose Relay (Part No.RAA1246)

Multi Purpose Relay

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$30.49
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 Pump Module Assembly: Without Float Arm (Part No.FG1408)

Fuel Pump Module Assembly: Without Float Arm

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$299.99
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:
  • 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
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Victor Reinz – Fuel Injector O-Ring Kit (Part No.18-10027-01)

Fuel Injector O-Ring Kit

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$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:
  • 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.
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Bosch – Oxygen Sensor: 4 Wire, 24.92" Long, Heated, Universal (Part No.15733)

Oxygen Sensor: 4 Wire, 24.92" Long, Heated, Universal

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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 advancements. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.  Bosch oxygen sensors deliver exceptional OE level reliability, performance and durability, further improving service life of the product. 

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
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APA/URO Parts – Suction Pump (Part No.B2045325720APA)

Suction Pump

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$41.69
The APA/URO PCV Suction Pump is an ideal high quality aftermarket replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:
  • Premium aftermarket replacement
  • Provides performance and dependability
  • Manufactured to meet OE specifications
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Kayser – Vacuum Check Valve (Part No.O404032232KAY)

Vacuum Check Valve

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$23.71
Vacuum Check Valve

Carquest Premium – Vapor Canister Purge Solenoid (Part No.CPC1845)

Vapor Canister Purge Solenoid

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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Pierburg – EGR Vacuum Solenoid, Solenoid Valve (Part No.B7008264186APG)

EGR Vacuum Solenoid, Solenoid Valve

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$123.66
EGR Vacuum Solenoid, Solenoid Valve

Bosch – Fuel Injector Seal Kit (Part No.C106016844BOS)

Fuel Injector Seal Kit

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$10.76
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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Bosch – Oxygen Sensor (Part No.C5010417731BOS)

Oxygen Sensor

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$141.75
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:
  • OE-Equivalent.
  • Direct fit for easy installation.
  • OE Style connectors and wire lengths.
  • Base ceramic probe of Zirconium and Yttrium.
  • Patented Platinum Power Grid.
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Carquest Premium – Fuel Pump Relay (Part No.RAA2248)

Fuel Pump Relay

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$14.99
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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Pierburg – Secondary Air Pump (Part No.B60102515448APG)

Secondary Air Pump

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$706.50
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:
  • 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
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Elring – Fuel Injector Seal (Part No.C1010681908ELR)

Fuel Injector Seal

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$2.43
Fuel Injector Seal

Motorad – Tethered Fuel Cap (Part No.MGC835T)

Tethered Fuel Cap

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$15.99
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:
  • Come pre-assembled for quick and easy installation.
  • Several fastener options to work with any fuel cap compartment configuration
  • Fits vehicles orginally equipped with tether
  • Reduces air pollution with proper sealing and venting
  • Manufactured from durable, long-life materials
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Delphi – Fuel Tank Cleaning Kit (Part No.FC01)

Fuel Tank Cleaning Kit

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$12.49
To perform a complete fuel pump replacement, clean the tank every time. Order the Delphi Fuel Tank Cleaning Kit (Part FC01). Remember, the original pump went into a clean fuel tank, to ensure the same level of performance, the new pump should too. 100 ye

Product Features:
  • Helps avoid premature fuel pump failure
  • Lint free towel included
  • Low suds formulation
  • Removes harmful contaminants from the fuel tank
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APA/URO Parts – Vacuum Check Valve (Part No.O404032232APA)

Vacuum Check Valve

from

$9.86
Vacuum Check Valve

Carquest – Fuel Injector Seal Kit (Part No.274838)

Fuel Injector Seal Kit

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:
  • 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
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Carquest Premium – Secondary Air Injection Pump Check Valve (Part No.EGA1181)

Secondary Air Injection Pump Check Valve

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.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
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Bosch – Fuel Tank Sending Unit (Part No.E2030848445BOS)

Fuel Tank Sending Unit

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$75.99
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:
  • Premium aftermarket replacement
  • Provides performance and dependability
  • Manufactured to meet OE specifications for fit, form, and function
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Hitachi – Mass Air Flow Sensor (Part No.MAF0036)

Mass Air Flow Sensor

from

$164.99
Hitachi’s Air Flow Sensors (MAFs) measure the amount and characteristics of air entering the engine. Hitachi uses precision elements and high-quality components for enhanced durability and accurate air flow measurements. Hitachi MAFs are 100% air flow tested for ideal performance and are calibrated for each application ensuring your vehicle meets the strict emission standards set by the manufacturer. Details such as a contaminant bypass port (when applicable) and protected circuitry providing a durable and reliable product approved by OE manufacturers makes Hitachi’s air flow sensors the premium choice.

Product Features:
  • Meets the OE performance and durability standards for this application
  • Welded connections instead of soldered for dependability
  • Contaminant bypass port provides reliable operation and increases longevity
  • Contaminant bypass port provides reliable operation and increases longevity
  • Welded connections instead of soldered for dependability
  • Meets the OE performance and durability standards for this application
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Carquest – Fuel Injector Connector (Part No.PT2318)

Fuel Injector Connector

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:
  • 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
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Carquest Premium – Diverter Valve (Part No.ECC2425)

Diverter Valve

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$194.99
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 – Thermo Switch (Part No.ELT0059)

Thermo Switch

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:
  • Tested to ensure maximum performance
  • Manufactured to strict engineering standards/specifications in materials and tolerances
  • Long life and durability
  • Made by the OE manufacturer
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Rein – Ambient Temp Sensor (Part No.P4025342395RIN)

Ambient Temp Sensor

from

$17.89
Ambient Temp Sensor

Carquest Premium – Vapor Canister (Part No.CPN1736)

Vapor Canister

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 (Part No.CPN2329)

Vapor Canister

from

$384.99
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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2004 Audi S4 Fuel and Emissions Systems

You count on your 2004 Audi S4 to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Fuel and Emissions Systems. With 49 Fuel and Emissions Systems ranging in price from $2.05 to $821.99, you’re sure to find everything you need for your 2004 Audi S4.

Brands matter. If you want to shop a specific Fuel and Emissions Systems brand, we stock 17 different brands like Bosch, Delphi, and Carquest. 2004 Audi S4 Fuel and Emissions Systems start as low as $2.05!

One of the best ways to find top quality OEM or aftermarket Fuel and Emissions Systems is by asking professionals. Short of that, you can shop with confidence thanks to our 501 extensive product reviews on 2004 Audi S4 Fuel and Emissions Systems. Some of the top-rated Fuel and Emissions Systems products we carry are Fuel Cap: 10827, Screw On, Direct Fit, Provides Tight Seal, 1 Pack with 2.5 stars and Locking Fuel Cap with 1.0 stars.

Did we mention you can order your Fuel and Emissions Systems from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Fuel and Emissions Systems inventory for your 2004 Audi S4 below to get started!

Top-Rated Fuel and Emissions Systems Brands For Your 2004 Audi S4

Trusted Fuel and Emissions Systems OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2004 Audi S4 running right for years to come. In our inventory you’ll find brands like Bosch, Delphi, Carquest, and even more.

Popular Dorman Fuel and Emissions Systems

You’ll find popular Dorman brand products across Vapor Canister Purge Valves. All are waiting to get your 2004 Audi S4 back on the road. Some of the top-rated Dorman products in these categories are:
Evaporative Emissions Purge Solenoid Valve
from $52.99
(11)
Evaporative Emissions Purge Solenoid Valve
Vapor Canister Purge Valves

FAQs for 2004 Audi S4 Fuel and Emissions Systems

What are the most purchased Fuel and Emissions Systems for the 2004 Audi S4?

Out of 49 Fuel and Emissions Systems for the 2004 Audi S4, the most popular in our inventory are:
Fuel Tank Cleaning Kit
from $12.49
This product is not rated
Fuel Tank Cleaning Kit
Fuel Tank Cleaning Kits
Fuel Injector Connector
from $4.29
(1)
Fuel Injector Connector
Fuel Injector Connectors
Fuel Injector Fuel Feed and Return Pipe O-Ring Kit with 8 O-Rings
from $12.99
This product is not rated
Fuel Injector Fuel Feed and Return Pipe O-Ring Kit with 8 O-Rings
Fuel Injector Seal Kits

What are the top-rated 2004 Audi S4 Fuel and Emissions Systems?

Top-rated Fuel and Emissions Systems for your 2004 Audi S4 based on customer reviews/ratings are:
Fuel Cap: 10827, Screw On, Direct Fit, Provides Tight Seal, 1 Pack
from $16.49
(8)
Fuel Cap: 10827, Screw On, Direct Fit, Provides Tight Seal, 1 Pack
“Fits perfect & works fine. No check engine light (CEL) on the dash. It has a seal and is a right fit.”
Locking Fuel Cap
from $21.99
(1)
Locking Fuel Cap
“Was disappointed that this locking gas cap 10597 did not fit my 2015 VW Jetta SE though stated that it would. Even took it to Advance Auto Parts to m”