2004 BMW 525i Fuel and Emissions Systems
Find Your Specific 2004 BMW 525i Fuel and Emissions Systems
Below you will find various in-demand BMW Fuel and Emissions Systems, components and accessories for your 2004 525i. Advance Auto Parts has popular 525i parts like Fuel Pumps, Fuel Injectors, Fuel Tanks and more. You’ll also find aftermarket and OEM Fuel and Emissions Systems for other 525i model years including
1993,
1994,
1995,
2001,
2002,
2003,
2005,
2006,
2007 and more. Select a category of 2004 BMW 525i Fuel and Emissions Systems below and start saving instantly.
Popular 2004 BMW 525i Fuel and Emissions Systems Categories
Essential Fuel and Emissions Systems for 2004 BMW 525is
DENSO – "DENSO Oxygen Sensor: 4 Wire, 11.77"" Long, Heated, Universal Fit, 234-4201" (Part No.234-4201)
from
$111.99
DENSO Oxygen 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; 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.
See More
Carquest Premium – Carquest Evaporative Emissions System Leak Detection Pump, VDC1019 (Part No.VDC1019)
from
$218.99
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.
See More
Motorad – Motorad Non-Locking Tethered Fuel Tank Cap, MGC844T (Part No.MGC844T)
from
$56.99
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.
See More
Carquest Premium – Carquest Fuel Cap Tester Adapter:, 12426 (Part No.12426)
from
$11.79
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.
See More
Carquest Premium – Carquest Fuel Injector Seal Kit Remanufactured, AS017 (Part No.AS017)
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. Includes hard to find or previously dealer-only components.
See More
Dorman – Help – Dorman – Help Positive Crankcase Ventilation System Oil Separator, 46103 (Part No.46103)
from
$116.99
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.
See More
Carquest Premium – Carquest Remanufactured Multi Port Fuel Injector, A212-1325 (Part No.A212-1325)
from
$46.99
The CARQUEST line of remanufactured OEM fuel injectors are remanufactured using a proven 15 step process at a state-of-the-art remanufacturing facility in the USA Injectors are thoroughly 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.
See More
Delphi – Delphi Electric Fuel Pump: With Hose Clamps, Hose Piece, Isolator, Pall Nut, Seal, FE0150 (Part No.FE0150)
from
$148.99
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.
See More
Carquest Premium – Carquest Idle Air Control Valve, ABC3727 (Part No.ABC3727)
from
$208.99
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.
See More
URO Parts – URO Parts Idle Control Valve, 13411744713 (Part No.13411744713)
from
$112.99
For European vehicles, A.P.A. manufactures the URO Parts brand of quality replacement parts, which meet or exceed OEM specifications. URO Parts components are ideal for both professional and DIY vehicle repair, and are often the exclusive aftermarket alternative to overpriced €œGenuine€ components. By reducing deferred maintenance with URO Parts, you will increase the bottom line of your business. With its URO Premium line, A.P.A. offers problem-solving upgraded components that are superior to failure-prone OEM parts in design and/or materials. A.P.A. is so confident in the longevity and reliability of URO Premium products, they’re covered by an unlimited mileage, . URO Parts also specializes in accurate reproduction parts for classic vehicles, including a huge variety of items that are no longer available from the dealer.
See More
Carquest Premium – Carquest New Mass Air Flow Sensor – Complete Assembly, MQ7390 (Part No.MQ7390)
from
$129.99
Carquest Premium mass air flow (MAF) sensors are built to meet the original equipment (OE) specifications for each application. Our MAF sensors are built by a manufacturer that meets IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium mass air flow sensors are 100% new and undergo extensive validation testing to ensure long-lasting performance and reliability.
See More
Carquest Premium – Carquest New Mass Air Flow Sensor – Sensor Only, MQ6289 (Part No.MQ6289)
from
$142.99
Carquest Premium mass air flow (MAF) sensors are built to meet the original equipment (OE) specifications for each application. Our MAF sensors are built by a manufacturer that meets IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium mass air flow sensors are 100% new and undergo extensive validation testing to ensure long-lasting performance and reliability.
See More
Delphi – Delphi Fuel Tank Cleaning Kit, FC01 (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.
See More
URO Parts – URO Parts Fuel Tank Sending Unit Gasket, 16146750467 (Part No.16146750467)
from
$19.99
For European vehicles, A.P.A. manufactures the URO Parts brand of quality replacement parts, which meet or exceed OEM specifications. URO Parts components are ideal for both professional and DIY vehicle repair, and are often the exclusive aftermarket alternative to overpriced €œGenuine€ components. By reducing deferred maintenance with URO Parts, you will increase the bottom line of your business. With its URO Premium line, A.P.A. offers problem-solving upgraded components that are superior to failure-prone OEM parts in design and/or materials. A.P.A. is so confident in the longevity and reliability of URO Premium products, they’re covered by an unlimited mileage, . URO Parts also specializes in accurate reproduction parts for classic vehicles, including a huge variety of items that are no longer available from the dealer.
See More
Carquest Premium – Carquest Ambient Air Temperature Sensor, WTA1098 (Part No.WTA1098)
from
$41.99
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.
See More
Rein – Rein Breather Hose, ABV0109R (Part No.ABV0109R)
from
$22.99
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.
See More
Rein – Rein Breather Hose, ABV0124 (Part No.ABV0124)
from
$49.99
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.
See More
URO Parts – URO Parts Air Pump, 11727571589 (Part No.11727571589)
from
$337.99
For European vehicles, A.P.A. manufactures the URO Parts brand of quality replacement parts, which meet or exceed OEM specifications. URO Parts components are ideal for both professional and DIY vehicle repair, and are often the exclusive aftermarket alternative to overpriced €œGenuine€ components. By reducing deferred maintenance with URO Parts, you will increase the bottom line of your business. With its URO Premium line, A.P.A. offers problem-solving upgraded components that are superior to failure-prone OEM parts in design and/or materials. A.P.A. is so confident in the longevity and reliability of URO Premium products, . URO Parts also specializes in accurate reproduction parts for classic vehicles, including a huge variety of items that are no longer available from the dealer.
See More
Carquest Premium – Carquest New Map Sensor, ECC1366 (Part No.ECC1366)
from
$109.99
CARQUEST MAP sensors are manufactured with critical OEM components to ensure that your engine runs efficiently to reach the best gas mileage on your vehicle.
See More
DENSO – "DENSO Wideband Oxygen Sensor: 5 Wire, 14.29"" Long, Heated, Exact Fit, 234-5135" (Part No.234-5135)
from
$213.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
See More
NTK – "NTK Wideband Oxygen Sensor: Air-Fuel Ratio 5 Wire, 12.5"" Long, Heated, Direct Fit, 24333" (Part No.24333)
from
$111.99
NGK is the sensor specialist for import and domestic applications. Established under the NGK product family, oxygen sensors are part of our ongoing commitment to streamlining product types and increasing coverage. A ceramic company at our core, uses cutting-edge technology to control the ceramic used in our oxygen sensors from raw material to finished product. NTK is the world’s largest supplier and manufacturer of OE oxygen sensors. Combining expertise and innovation, oxygen sensors deliver superior fit, form, and function. oxygen sensors undergo extensive testing during manufacturing to ensure quality and reliability that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for comprehensive market support and OE application technology.
See More
NTK – "NTK Wideband Oxygen Sensor: Air-Fuel Ratio 5 Wire, 11.5"" Long, Heated, Direct Fit, 24315" (Part No.24315)
from
$184.99
NGK is the sensor specialist for import and domestic applications. Established under the NGK product family, oxygen sensors are part of our ongoing commitment to streamlining product types and increasing coverage. A ceramic company at our core, uses cutting-edge technology to control the ceramic used in our oxygen sensors from raw material to finished product. NTK is the world’s largest supplier and manufacturer of OE oxygen sensors. Combining expertise and innovation, oxygen sensors deliver superior fit, form, and function. oxygen sensors undergo extensive testing during manufacturing to ensure quality and reliability that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for comprehensive market support and OE application technology.
See More
DENSO – "DENSO Wideband Oxygen Sensor: Upstream, 5 Wire, 38.66"" Long, Heated, Exact Fit, 234-5137" (Part No.234-5137)
from
$205.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
See More
aFe POWER – aFe POWER Sprint Booster Throttle Enhancer Power Converter, 77-16304 (Part No.77-16304)
from
$314.99
Silver Bullet throttle body spacers create turbulence in the air flow at the point just prior entry into the engine increasing horsepower, torque and improving throttle response and fuel efficiency. Silver Bullet throttle body spacers are constructed out of durable T-6061 billet aluminum and using a unique serrated/helix entry to create turbulence at the manifold while eliminating the annoying whistle found in other helix only throttle spacers.
See More
Upgrade your 2004 BMW 525i with Top-Quality Fuel and Emissions Systems
When it comes to maintaining or upgrading your 2004 BMW 525i, 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 525i functioning at its best. At Advance Auto Parts, we offer a wide selection of 40 Fuel and Emissions Systems for the 2004 BMW 525i, 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 525i at great prices.
Our Fuel and Emissions Systems inventory for this model
ranges from just $3.99 to $337.99, with
an average price of $117.10.
Our 40 Fuel and Emissions Systems in stock come from 11 trusted brands, so you’re sure to find the right part for your 2004 BMW 525i 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 525i, we stock popular OEM and aftermarket Fuel and Emissions Systems from top names
like Bosch Carquest Premium, and more.
Bosch Fuel and Emissions Systems
start at just $153.99 and boast an impressive 4.7 stars average rating from customers.
With 41 customer reviews and counting, our 2004 BMW 525i 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 525i is always ready to roll. We’re committed to providing you with everything you need to keep your 525i in top shape, all in one place.
Start shopping confidently below for your 2004 BMW 525i!
Best-Selling Fuel Pumps for 2004 BMW 525is
Enhance the driving experience in your BMW with 3 quality Fuel Pump components, starting at $11.79.
Carquest Premium – Carquest Fuel Pump Module Assembly: Fuel Pump, Sending Unit and Strainer, M3496317 (Part No.M3496317)
from
$325.99
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.
See More
Carquest Premium – Carquest Evaporative Emissions System Leak Detection Pump, VDC1019 (Part No.VDC1019)
from
$218.99
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.
See More
Carquest Premium – Carquest Fuel Cap Tester Adapter:, 12426 (Part No.12426)
from
$11.79
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.
See More
Most Popular 2004 BMW 525i Fuel Injectors
Customize your BMW with 7 Fuel Injectors products
like Air Flow Meters and Mass Air,
Fuel Injectors, and
Fuel Injector O-Ring Kits, all
priced under $314.99.
Carquest Premium – Carquest New Mass Air Flow Sensor – Complete Assembly, MQ7390 (Part No.MQ7390)
from
$129.99
Carquest Premium mass air flow (MAF) sensors are built to meet the original equipment (OE) specifications for each application. Our MAF sensors are built by a manufacturer that meets IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium mass air flow sensors are 100% new and undergo extensive validation testing to ensure long-lasting performance and reliability.
See More
Carquest Premium – Carquest Fuel Injector Seal Kit Remanufactured, AS017 (Part No.AS017)
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. Includes hard to find or previously dealer-only components.
See More
Carquest Premium – Carquest New Mass Air Flow Sensor – Sensor Only, MQ6289 (Part No.MQ6289)
from
$142.99
Carquest Premium mass air flow (MAF) sensors are built to meet the original equipment (OE) specifications for each application. Our MAF sensors are built by a manufacturer that meets IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium mass air flow sensors are 100% new and undergo extensive validation testing to ensure long-lasting performance and reliability.
See More
Carquest Premium – Carquest Remanufactured Multi Port Fuel Injector, A212-1725 (Part No.A212-1725)
from
$99.99
The CARQUEST line of remanufactured OEM fuel injectors are remanufactured using a proven 15 step process at a state-of-the-art remanufacturing facility in the USA Injectors are thoroughly 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.
See More
Continental – Continental Mass Air Flow Sensor, 5WK97502Z (Part No.5WK97502Z)
from
$281.99
Continental mass air flow sensors, or MAFS, are the genuine OEM part. Continental sensors are made and manufactured to the highest quality and original equipment specifications. They are identical in fit, form, and function and provide the genuine quality of OE components supplied to auto manufacturers worldwide. MAFS are essential in optimizing fuel economy and ensure your vehicle is running at peak performance and efficiency.
See More
aFe POWER – aFe POWER Sprint Booster Throttle Enhancer Power Converter, 77-16304 (Part No.77-16304)
from
$314.99
Silver Bullet throttle body spacers create turbulence in the air flow at the point just prior entry into the engine increasing horsepower, torque and improving throttle response and fuel efficiency. Silver Bullet throttle body spacers are constructed out of durable T-6061 billet aluminum and using a unique serrated/helix entry to create turbulence at the manifold while eliminating the annoying whistle found in other helix only throttle spacers.
See More
Continental – Continental Mass Air Flow Sensor, 5WK9639Z (Part No.5WK9639Z)
from
$91.99
Continental mass air flow sensors, or MAFS, are the genuine OEM part. Continental sensors are made and manufactured to the highest quality and original equipment specifications. They are identical in fit, form, and function and provide the genuine quality of OE components supplied to auto manufacturers worldwide. MAFS are essential in optimizing fuel economy and ensure your vehicle is running at peak performance and efficiency.
See More
Top Picks for 2004 BMW 525i Fuel Tanks
Upgrade BMW 525is with top-quality Fuel Tanks parts, including 1 OEM and aftermarket selections for your 2004 model.
Delphi – Delphi Fuel Tank Cleaning Kit, FC01 (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.
See More
In-Demand Oxygen Sensors for 2004 BMW 525is
Select from 6 premium Oxygen Sensors parts for your 2004 BMW 525i, with prices ranging from $111.99 to $154.99.
Bosch – "Bosch Wideband Oxygen Sensor: 5 Wire, 38.58"" Long, Heated, Exact Fit, 17215" (Part No.17215)
from
$153.99
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.
See More
Bosch – "Bosch Oxygen Sensor: 4 Wire, 24.02"" Long, Heated, Universal, 15738" (Part No.15738)
from
$111.99
Bosch SmartLink„¢ Universal Oxygen (O2) sensors combine OE-specification base sensors with a flexible, patented Posi-Lock® connector system designed for fast, reliable installation across a wide range of vehicles. Each sensor uses the same high-quality zirconia ceramic element and heater design found in Bosch OE applications, ensuring accurate air-fuel-ratio feedback and dependable performance. The SmartLink„¢ system features Posi-Lock® connectors that create secure, high-temperature & weather resistant electrical connections without the need for soldering, crimping, or specialty tools €” allowing technicians to adapt the sensor to existing harnesses quickly and confidently. The extended lead length provides added flexibility for vehicles with damaged or shortened wiring, and the connector system can be reopened and reused if adjustments are needed. Engineered to provide an easy, universal installation experience, Bosch SmartLink„¢ Universal Oxygen (O2) sensors deliver professional-grade fit and function with the same OE-proven quality and dependability trusted by vehicle manufacturers.
See More
Bosch – "Bosch Oxygen Sensor: 4 Wire, 38.39"" Long, Heated, Exact Fit, 15681" (Part No.15681)
from
$145.99
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.
See More
Bosch – "Bosch Oxygen Sensor: 4 Wire, 38.39"" Long, Heated, Exact Fit, 15680" (Part No.15680)
from
$154.99
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.
See More
NTK – "NTK Switching Oxygen Sensor: 4 Wire, 39.25"" Long, Heated, Direct Fit, 25658" (Part No.25658)
from
$122.99
NGK is the world’s largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
See More
DENSO – "DENSO Oxygen Sensor: 4 Wire, 11.77"" Long, Heated, Universal Fit, 234-4201" (Part No.234-4201)
from
$111.99
DENSO Oxygen 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; 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.
See More
Most Sold 2004 BMW 525i Gas Caps
Explore our best-selling BMW parts for the 2004 525i among 2 OEM and aftermarket options starting from $43.99.
Carquest Premium – Carquest Non-Locking Fuel Tank Cap, 10844 (Part No.10844)
from
$43.99
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.
See More
Motorad – Motorad Non-Locking Tethered Fuel Tank Cap, MGC844T (Part No.MGC844T)
from
$56.99
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.
See More
Top-Rated Fuel and Emissions Systems Brands For Your 2004 BMW 525i
Shop for the best-rated brands offering Fuel and Emissions Systems and other products for your 2004 BMW 525is. Below you’ll find some of our best rated Fuel and Emissions Systems from Bosch and Carquest Premium, and more. Fuel and Emissions Systems from these brands that fit a 2004 525i start at just $43.99 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 525i Fuel and Emissions Systems
When it comes to maintaining or upgrading your 2004 BMW 525i, 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 525i. With over 1 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 $153.99. Plus, with over 1 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
$153.99
(1)
"Bosch Wideband Oxygen Sensor: 5 Wire, 38.58"" Long, Heated, Exact Fit, 17215"
“Prefect fit and price.”
Popular Carquest Premium 2004 BMW 525i 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 525i owner should feel confident when installing genuine Carquest Premium parts in their vehicle. To ensure the best fit and performance for your 2004 525i, 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 $43.99, plus, with more than 36 customer reviews and an impressive 4.5 stars average rating, you can be confident the Fram Fuel and Emissions Systems below will deliver on both quality and value.
FAQs for 2004 BMW 525i Fuel and Emissions Systems
Which Fuel and Emissions Systems are best-sellers for 2004 BMW 525is?
Out of 40 Fuel and Emissions Systems that fit 2004 BMW 525is, the following parts are the top sellers:
- Delphi Fuel Tank Cleaning Kit, FC01 (11692237) – $12.49
- Carquest Fuel Injector Seal Kit Remanufactured, AS017 (11450036) – $3.99
- Carquest New Mass Air Flow Sensor – Sensor Only, MQ6289 (11887399) – $142.99
What’s the price range for 2004 BMW 525i Fuel and Emissions Systems?
Fuel and Emissions System prices for the 2004 BMW 525i start at $3.99 and go up to $337.99 for the most premium parts.
What’s the average price of a Fuel and Emissions System for a 2004 BMW 525i?
The average price for Fuel and Emissions Systems for the 2004 BMW 525i is $117.10. 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 525i model years?
What are the cheapest Fuel and Emissions Systems for my 2004 BMW 525i?
The cheapest 2004 BMW 525i Fuel and Emissions Systems we carry in stock are:
- Carquest Fuel Injector Seal Kit Remanufactured, AS017 (11450036) – $3.99
- Carquest Fuel Cap Tester Adapter:, 12426 (10647308) – $11.79
- Delphi Fuel Tank Cleaning Kit, FC01 (11692237) – $12.49
- Rein Breather Hose, ABV0131 (11323021) – $18.99
- URO Parts Crankcase Breather Hose, Valve Cover to Crankcase Vetilation Valve, 11611432559 (11681187) – $19.99
What are the top-rated Fuel and Emissions Systems that fit the 2004 BMW 525i?
Out of 41 reviews by customers, our 2004 BMW 525i Fuel and Emissions Systems have an average customer rating of . These are some of the highest-rated Fuel and Emissions System types for the 2004 BMW 525i and their top-rated products:
- Oxygen Sensors
- "Bosch Wideband Oxygen Sensor: 5 Wire, 38.58"" Long, Heated, Exact Fit, 17215" (15470410) – $153.99
- "Bosch Oxygen Sensor: 4 Wire, 24.02"" Long, Heated, Universal, 15738" (18730545) – $111.99
What types of Fuel and Emissions Systems do you sell for my 2004 BMW 525i?
As of 8/2/26, these are some of the most in-demand types of Fuel and Emissions Systems for a 2004 BMW 525i:
Can I get help with 2004 BMW 525i 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 525i Fuel and Emissions Systems?
Advance Auto Parts keeps returns simple. For new BMW 525i 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.
