2004 BMW 325xi Fuel and Emissions Systems

Below you will find various in-demand BMW Fuel and Emissions Systems, components and accessories for your 2004 325xi. Advance Auto Parts has popular 325xi parts like Fuel Pumps, Fuel Injectors, Air Flow Sensors and more. You’ll also find aftermarket and OEM Fuel and Emissions Systems for other 325xi model years including 2001, 2002, 2003, 2005, 2006 and more. Select a category of 2004 BMW 325xi Fuel and Emissions Systems below and start saving instantly.

Popular 2004 BMW 325xi Fuel and Emissions Systems Categories

Fuel Tank Cleaning Kits

Air Flow Meters and Mass Air

Vapor Canister Vent Solenoids

Emission Control Relays

Fuel Vapor Leak Detection Pumps

Canister Purge Solenoids

Fuel Injectors

Ambient Air Temperature Sensor Connectors

Engine Crankcase Breather Hose Check Valves

Mass Air Flow Sensor Relays

Air Charge Temperature Sensors

Fuel Injection Idle Air Control Valves

Ambient Air Temperature Sensors

Fuel Injector O-Ring Kits

Mass Air Flow Sensor Connectors

Air Pump Hoses

Fuel Injection Air Flow Meter Boots

Crankcase Breather Hoses

Fuel Cap Tester Adapters

Essential Fuel and Emissions Systems for 2004 BMW 325xis

from

$37.19

The FAE Intake Air Temperature Sensor 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

from

$3.99

CARQUEST fuel injector seal kits include the necessary O-rings and seals to properly reseal the injector, which is a recommended practice any time the injector is removed. Each kit services one injector and includes hard to find or previously dealer-only components.

Product Features:

Premium OE quality materials
Services one injector

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$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:

Helps avoid premature fuel pump failure
Lint free towel included
Low suds formulation
Removes harmful contaminants from the fuel tank

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$115.99

This engine crankcase breather hose check valve is designed to match the fit and function of the original valve on specified vehicles, and is engineered for durability and reliable performance.

Product Features:

Direct replacement – this engine crankcase breather hose check valve is designed to match the fit and function of the original valve on specified vehicles
Restores functionality – this valve is made to fit and fully restore part functionality after the original valve fails
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$197.99

Every single Delphi mass air flow (MAF) sensor that we manufacture – whether with or without the housing – is built with calibrated all-new components and is never remanufactured. Our mass air flow sensors are designed and tested to meet or exceed OE requirements, and engineered for a perfect fit in more than 180 million vehicles on the road today in North America – including makes from Ford, Toyota, Nissan, Volkswagen, Hyundai, BMW, Honda, GM, Mazda, Subaru, Acura and more.

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

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$91.99

Rein Automotive OE quality breather hoses fit European vehicles the way the original manufacturer intended. Designed to be direct replacements for OE hoses, Rein hoses are identical to the OEM.

Product Features:

Matches original equipment design specifications.
Manufactured with high quality materials.
Direct fit for easy installation.
Resistant to heat, salt, road debris, oil and other contaminants.

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$301.99

Delphi is a Tier 1 supplier to the majority of global vehicle manufacturers and has been a manufacturer of dependable fuel pumps and fuel delivery parts for over 80 years. With over 30 OE-proprietary innovations and 150 patents in fuel technologies, Delphi is regarded as a market leader in North American fuel management with sales coverage at over 95%. Learn more about our expert-led training programs and tech hotline at 1-877-463-3574. 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:

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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$44.99

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

Product Features:

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

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$621.99

This vacuum pump matches the fit and function of the original equipment pump. Made of durable materials for reliable service, this replacement pump is built to ensure reliable operation of vacuum-operated vehicle functions.

Product Features:

Ideal replacement – this vacuum pump matches the fit and function of the original equipment pump to restore operation of vacuum-operated functions
Durable construction – this vacuum pump is made of quality materials to ensure reliable performance and a long service life
Cost-effective solution – offers original equipment performance at competitive price
Quality tested – this part has undergone try-on testing to ensure a quality fit

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$107.99

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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$35.99

Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.

Product Features:

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
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.

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$213.99

Carquest Premium idle air control valves are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Idle air control valves, or sometimes known as idle air motors, are used to maintain the engine speed at idle by precisely adjusting the amount of air allowed to enter the intake. Our Carquest Premium idle air control (IAC) valves are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium idle air control valves undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium idle air control valves are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:

Designed to meet or exceed OE specifications for fit, form and function
Precision engineering and robust design to withstand harsh under hood environment
Gaskets or seals are included if required for installation
Extensive design validation testing and 100% end-of-line tested
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

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$13.99

Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.

Product Features:

Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
Sealed connections (where applicable) to prevent environmental corrosion and performance issues
Global coverage for import and/or domestic applications
OE specified wire gauge to ensure a reliable electrical connection
Designed to meet or exceed OE specifications in form, fit and function

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$20.99

Rein Automotive OE quality boots fit European vehicles the way the original manufacturer intended. Designed to be direct replacements for OE hoses, Rein hoses are identical to the OEM.

Product Features:

Direct fit for easy installation.
Manufactured with high quality materials.
Matches original equipment design specifications.
Resistant to heat, salt, road debris, oil and other contaminants.

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$16.79

ACDelco Professional Air Charge Temperature Sensor Connector is a high quality aftermarket replacement component for one or more of the following vehicle systems: ignition, starting and charging, body-electrical and lighting, andor engine fuel management. This premium aftermarket connector is manufactured to meet or exceed your expectations for fit, form, and function.

Product Features:

Professional, premium aftermarket replacement
Provides the performance and dependability you expect from ACDelco
Manufactured to meet expectations for fit, form, and function

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$23.99

Rein Automotive OE quality air pump hoses fit European vehicles the way the original manufacturer intended. Designed to be direct replacements for OE hoses, Rein hoses are identical to the OEM.

Product Features:

Matches original equipment design specifications.
Manufactured with high quality materials.
Direct fit for easy installation.
Resistant to heat, salt, road debris, oil and other contaminants.

from

$43.99

Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Product Features:

BAR Certified adapters
Adapter check’s a fuel cap’s ability to hold pressure.
Adapters meet EPA standards for recommended fleet coverage.
Check adapter application chart for specific makes and models

from

$136.99

A malfunctioning vapor canister vent solenoid can cause the engine light to come on. This vapor canister vent solenoid is engineered of quality materials for durability to ensure proper operation of the vehicle’s evaporative emissions system.

Product Features:

Direct replacement – this vapor canister vent solenoid fits and performs like original equipment with simple plug-and-play installation
Quality construction – manufactured from premium materials for a long service life
Excellent value – original equipment function at a lower price
Quality tested – has undergone simulation and endurance testing to ensure proper fit and performance

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$151.99

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:

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

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$175.99

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

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$108.99

Maximize your vehicle’s efficiency and emissions control with Carquest Vapor Canister Purge Solenoids. Engineered for precision, these solenoids seamlessly regulate the flow of fuel vapors from the Vapor Canister to the engine for cleaner combustion, reducing harmful emissions. Built to meet and/or exceed OEM standards, Carquest Purge Solenoids offer reliable functionality, long-lasting durability, and easy installation.

Product Features:

Enhances overall engine performance by providing proper vapor flow to maintain correct air-fuel mixture.
Helps reduce harmful emissions and ensures compliance with environmental regulations by controlling the release of fuel vapors into the engine
Ensures precise operation with electromagnetic principles to control the flow of fuel vapors from the carbon canister to the engine
Manufactured from high quality engineered materials, resistant to fuel vapors and extreme temperatures, ensuring long lasting performance
Meets or exceeds all OEM specifications

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$113.99

Keep your EVAP system in check and ensure top-tier emissions control with Carquest’s high-performance Leak Detection Pumps. Built for accuracy and durability, these Leak Detection Pumps offer reliable performance, compliance with strict emission standards, and simple, direct fit installation. For dependable, eco-friendly performance, trust Carquest Leak Detection Pumps to protect your vehicle and the environment.

Product Features:

The pump plays a critical role in identifying leaks in the EVAP system, preventing harmful fuel vapors from escaping into the atmosphere
Designed to create precise vacuum, ensuring accurate identification of leaks for enhanced vehicle performance
Equipped with integrated sensors that continuously monitor pressure levels, allowing for immediate detection of any leaks or malfunctions
Meets or exceeds all OEM specifications

from

$39.99

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
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.

from

$40.99

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:

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

from

$37.99

Rein OE Quality Fuel Cap

Upgrade your 2004 BMW 325xi with Top-Quality Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2004 BMW 325xi, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your BMW or enhancing its overall performance, Fuel and Emissions Systems are key to keeping your 325xi functioning at its best. At Advance Auto Parts, we offer a wide selection of 37 Fuel and Emissions Systems for the 2004 BMW 325xi, 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 2004 BMW 325xi at great prices. Our Fuel and Emissions Systems inventory for this model ranges from just $3.99 to $621.99, with an average price of $103.25. Our 37 Fuel and Emissions Systems in stock come from 9 trusted brands, so you’re sure to find the right part for your 2004 BMW 325xi 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 2004 BMW 325xi, we stock popular OEM and aftermarket Fuel and Emissions Systems from top names like Bosch, Carquest Premium, Delphi, and more. Bosch Fuel and Emissions Systems start at just $75.99 and boast an impressive 4.7 stars average rating from customers. Carquest Premium and Delphi also bring quality to the table, with Fuel and Emissions Systems available starting at $40.99, and at an average 4.4 stars rating. With 75 customer reviews and counting, our 2004 BMW 325xi 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 2004 BMW 325xi is always ready to roll. We’re committed to providing you with everything you need to keep your 325xi in top shape, all in one place. Start shopping confidently below for your 2004 BMW 325xi!

Best-Selling Fuel Pumps for 2004 BMW 325xis

Enhance the driving experience in your BMW with 4 quality Fuel Pump components, starting at $43.99.

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from

$301.99

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

from

$220.99

Carquest Premium fuel pump modules and assemblies are engineered by Carter Fuel Systems or Agility Auto Parts to meet or exceed Original Equipment (OE) specifications for fit, form and function. We have invested in industry-leading quality improvements like upgraded turbine impellers and 100% carbon commutators to deliver greater reliability. Carquest Premium fuel pump modules are supplied with the pump strainer and gaskets or seals when required for the application. Carquest Premium fuel pump modules are engineered with superior quality components to provide the longest life and reliable performance.

Product Features:

Meets or exceeds OE specifications for fit, form and function
100% carbon commutators provide resistance to aggressive fuels and double the life expectancy of the pump
OE upgraded turbine impellers greatly reduce fuel pulsation
All fuel pumps are 100% performance tested
Includes installation gaskets or seals where applicable

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$113.99

The pump plays a critical role in identifying leaks in the EVAP system, preventing harmful fuel vapors from escaping into the atmosphere
Designed to create precise vacuum, ensuring accurate identification of leaks for enhanced vehicle performance
Equipped with integrated sensors that continuously monitor pressure levels, allowing for immediate detection of any leaks or malfunctions
Meets or exceeds all OEM specifications

from

$43.99

Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Product Features:

BAR Certified adapters
Adapter check’s a fuel cap’s ability to hold pressure.
Adapters meet EPA standards for recommended fleet coverage.
Check adapter application chart for specific makes and models

Most Popular 2004 BMW 325xi Fuel Injectors

Customize your BMW with 6 Fuel Injectors products like Air Flow Meters and Mass Air, Fuel Injectors, and Fuel Injector O-Ring Kits, all priced under $342.99.

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$99.99

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 percent 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:

100 percent 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 percent 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 percent.

from

$20.99

Direct fit for easy installation.
Manufactured with high quality materials.
Matches original equipment design specifications.
Resistant to heat, salt, road debris, oil and other contaminants.

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$3.99

Premium OE quality materials
Services one injector

from

$125.99

Advance Auto Parts is proud to carry all new mass air flow sensors that use high-quality components with the highest quality standards.

Product Features:

CARQUEST MAF use all new high-quality components at the highest quality standards.
Manufactured with new and advanced technology to perform, fit and function at OE specifications.
All new product that is tested with OEM equipment to OEM standards
Outperforms competition when tested in extreme environmental conditions

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$99.99

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

from

$342.99

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

Top Picks for 2004 BMW 325xi Air Flow Sensors

Upgrade BMW 325xis with top-quality Air Flow Sensors parts, including 6 OEM and aftermarket selections for your 2004 model.

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from

$39.99

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
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.

from

$44.99

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.

from

$23.99

Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
WVE electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
Product constructed to meet all design and operating characteristics as intended by the manufacturer.
OE specified wire gauge to ensure a reliable electrical connection
Designed to meet or exceed OE specifications in form, fit and function

from

$13.99

Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
Sealed connections (where applicable) to prevent environmental corrosion and performance issues
Global coverage for import and/or domestic applications
OE specified wire gauge to ensure a reliable electrical connection
Designed to meet or exceed OE specifications in form, fit and function

from

$16.79

Professional, premium aftermarket replacement
Provides the performance and dependability you expect from ACDelco
Manufactured to meet expectations for fit, form, and function

from

$37.19

The FAE Intake Air Temperature Sensor 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

In-Demand Oxygen Sensors for 2004 BMW 325xis

Select from 4 premium Oxygen Sensors parts for your 2004 BMW 325xi, with prices ranging from $75.99 to $111.99.

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from

$75.99

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

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$79.99

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

from

$111.99

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

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:

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

Most Sold 2004 BMW 325xi Gas Caps

Explore our best-selling BMW parts for the 2004 325xi among 2 OEM and aftermarket options starting from $37.99.

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from

$37.99

Rein OE Quality Fuel Cap

from

$40.99

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

Top-Rated Fuel and Emissions Systems Brands For Your 2004 BMW 325xi

Shop for the best-rated brands offering Fuel and Emissions Systems and other products for your 2004 BMW 325xis. Below you’ll find some of our best rated Fuel and Emissions Systems from Bosch, Carquest Premium, and Delphi, and more. Fuel and Emissions Systems from these brands that fit a 2004 325xi start at just $40.99 and are rated as high as 4.7 stars. OEM and aftermarket Fuel and Emissions Systems don’t get more top quality, durable, and affordable than from the brands below.

Popular Bosch 2004 BMW 325xi Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2004 BMW 325xi, using quality Fuel and Emissions Systems is essential to ensure durability and a perfect fit. Bosch ticks all of those boxes. We offer a wide selection of Bosch Fuel and Emissions Systems, specifically designed for the 2004 BMW 325xi. With over 2 Bosch 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 $75.99, with an average price of just $77.99. Plus, with over 30 customer reviews and an average rating of 4.7 stars, you can trust that our Bosch 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.

from $79.99

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Oxygen Sensor: 4 Wire, 11.42" Long, Heated, Exact Fit

“It’s an oxygen sensor. What is there to say about an oxygen? It worked. It fit perfectly. The code went away. I passed emissions. These parts combined”

from $75.99

(16)

Oxygen Sensor: 4 Wire, 38.39" Long, Heated, Exact Fit

“I bought this for my 2003 330i. This is the same brand the dealer would use and it plugs straight into the factory harness. The only difference was I ”

Popular Carquest Premium 2004 BMW 325xi Fuel and Emissions Systems

Carquest Premium auto parts is one of the highest quality Fuel and Emissions System brands in the market. Any 2004 BMW 325xi owner should feel confident when installing genuine Carquest Premium parts in their vehicle. To ensure the best fit and performance for your 2004 325xi, Advance Auto Parts carries a full inventory of 1 Carquest Premium Fuel and Emissions Systems. Plus you will be keeping your BMW in peak condition while saving money because prices on these Carquest Premium Fuel and Emissions Systems range up to $40.99, plus, with more than 36 customer reviews and an impressive 4.4 stars average rating, you can be confident the Fram Fuel and Emissions Systems below will deliver on both quality and value.

from $40.99

(36)

Fuel Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack

“very happy with the purchase , thanks advance auto parts…..”

FAQs for 2004 BMW 325xi Fuel and Emissions Systems

Which Fuel and Emissions Systems are best-sellers for 2004 BMW 325xis?

Out of 37 Fuel and Emissions Systems that fit 2004 BMW 325xis, the following parts are the top sellers:

Fuel Tank Cleaning Kit (11692237) – $12.49
Fuel Injector Seal Kit (11450036) – $3.99
Oxygen Sensor: 4 Wire, 38.39" Long, Heated, Exact Fit (18730339) – $75.99

What’s the price range for 2004 BMW 325xi Fuel and Emissions Systems?

Fuel and Emissions System prices for the 2004 BMW 325xi start at $3.99 and go up to $621.99 for the most premium parts.

What’s the average price of a Fuel and Emissions System for a 2004 BMW 325xi?

The average price for Fuel and Emissions Systems for the 2004 BMW 325xi is $103.25. 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 BMW 325xi model years?

Yes, we currently carry Fuel and Emissions Systems for 4 model years of BMW 325xis between 2001 and 2006. Fuel and Emissions Systems are bought most frequently for the following model years: 2006, 2005, 2003, 2002, and 2001.

What are the cheapest Fuel and Emissions Systems for my 2004 BMW 325xi?

The cheapest 2004 BMW 325xi Fuel and Emissions Systems we carry in stock are:

Fuel Injector Seal Kit (11450036) – $3.99
Fuel Tank Cleaning Kit (11692237) – $12.49
Multi-Use Connector (12471635) – $13.99
Multi-Purpose Pigtail (11935200) – $16.79
Breather Hose (11323021) – $17.99

What types of Fuel and Emissions Systems do you sell for my 2004 BMW 325xi?

As of 11/2/25, these are some of the most in-demand types of Fuel and Emissions Systems for a 2004 BMW 325xi:

Can I get help with 2004 BMW 325xi 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 BMW Fuel and Emissions Systems and more.

What is your return policy for BMW 325xi Fuel and Emissions Systems?

Advance Auto Parts keeps returns simple. For new BMW 325xi 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.

2004 BMW 325xi Fuel and Emissions Systems

FAE – Intake Air Temperature Sensor (Part No.C6000274885FAE)

Carquest Premium – Fuel Injector Seal Kit (Part No.AS017)

Delphi – Fuel Tank Cleaning Kit (Part No.FC01)

Dorman – Help – PCV System Oil Separator (Part No.46103)

Delphi – Mass Air Flow Sensor (Part No.AF10446)

Rein – Breather Hose (Part No.ABV0157)

Delphi – Fuel Pump Module Assembly: With Float Arm (Part No.FG0415)

Carquest Premium – Ambient Air Temperature Sensor (Part No.WTA1098)

Dorman – Mechanical Vacuum Pump (Part No.904-840)

Carquest Premium – Reman Multi Port Fuel Injector (Part No.A212-2385)

Carquest Premium – Multi-Purpose Relay (Part No.RAA1834)

Carquest Premium – Idle Air Control Valve (Part No.ABC3727)

Carquest Premium – Multi-Use Connector (Part No.ABA3461)

Rein – Air Flow Meter Boot (Part No.ABV0138)

ACDelco – Multi-Purpose Pigtail (Part No.PT2164)

Rein – Air Pump Hose (Part No.ABV0104R)

Carquest Premium – Fuel Cap Tester Adapter: (Part No.12426)

Dorman – Evaporative Emissions Canister Vent Valve (Part No.911-419)

Bosch – Wideband Oxygen Sensor: 5 Wire, 12.6" Long, Heated, Exact Fit (Part No.17039)

Bosch – Wideband Oxygen Sensor: 5 Wire, 54.72" Long, Heated, Exact Fit (Part No.17098)

Carquest Premium – Vapor Canister Purge Solenoid: Includes Mounting Hardware (Part No.CPC1093)

Carquest Premium – Evaporative Emissions System Leak Detection Pump (Part No.VDC1019)

Carquest Premium – Multi-Purpose Relay (Part No.RAA1749)

Carquest Premium – Fuel Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10844)

Rein – Cap-Fuel (Part No.CPF0031)

Delphi – Fuel Pump Module Assembly: With Float Arm (Part No.FG0415)

Carquest Premium – Fuel Pump Module Assembly: Fuel Pump, Sending Unit and Strainer (Part No.M2275187)

Carquest Premium – Evaporative Emissions System Leak Detection Pump (Part No.VDC1019)

Carquest Premium – Fuel Cap Tester Adapter: (Part No.12426)

Cardone – Remanufactured Mass Air Flow Sensor (Part No.74-10054)

Rein – Air Flow Meter Boot (Part No.ABV0138)

Carquest Premium – Fuel Injector Seal Kit (Part No.AS017)

Carquest Premium – Mass Air Flow Sensor (MAF) – 100% NEW (Part No.MQ7236)

Carquest Premium – Remanufactured Fuel Injector (Part No.A212-1725)

Delphi – Mass Air Flow Sensor (Part No.AF10185)

Carquest Premium – Multi-Purpose Relay (Part No.RAA1749)

Carquest Premium – Ambient Air Temperature Sensor (Part No.WTA1098)

Carquest Premium – Multi-Use Connector (Part No.PTA1104)

Carquest Premium – Multi-Use Connector (Part No.ABA3461)

ACDelco – Multi-Purpose Pigtail (Part No.PT2164)

FAE – Intake Air Temperature Sensor (Part No.C6000274885FAE)

Bosch – Oxygen Sensor: 4 Wire, 38.39" Long, Heated, Exact Fit (Part No.15109)

Bosch – Oxygen Sensor: 4 Wire, 11.42" Long, Heated, Exact Fit (Part No.13477)

Bosch – Oxygen Sensor: 4 Wire, 24.02" Long, Heated, Universal (Part No.15738)

DENSO – Oxygen Sensor: 4 Wire, 11.77" Long, Heated, Universal Fit (Part No.234-4201)

Rein – Cap-Fuel (Part No.CPF0031)

Carquest Premium – Fuel Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10844)