2004 BMW Z4 Fuel and Emissions Systems

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Essential Fuel and Emissions Systems for 2004 BMW Z4s

Carquest Premium – Carquest Remanufactured Multi Port Fuel Injector, A212-1995 (Part No.A212-1995)

Carquest Remanufactured Multi Port Fuel Injector, A212-1995

from

$76.99
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.
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Carquest Premium – Carquest Vapor Canister Purge Solenoid: Includes Mounting Hardware, CPC1093 (Part No.CPC1093)

Carquest Vapor Canister Purge Solenoid: Includes Mounting Hardware, CPC1093

from

$109.99
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.
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Felpro – Felpro Fuel Injection Throttle Body Mounting Gasket, 61902 (Part No.61902)

Felpro Fuel Injection Throttle Body Mounting Gasket, 61902

from

$9.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Carquest Premium – Carquest Vapor Canister Vent Solenoid: Includes Mounting Hardware, CPC2354 (Part No.CPC2354)

Carquest Vapor Canister Vent Solenoid: Includes Mounting Hardware, CPC2354

from

$134.99
Ensure that your vehicle’s emission control system performs at its best with Carquest premium Vapor Canister Vent Valves. Manufactured for long-lasting performance, these Vent Valves provide reliable operation and help maintain your vehicle’s compliance with environmental regulations. For cleaner emissions, optimal vehicle efficiency and perfomance, trust Carquest Vapor Canister Vent Valves.
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Carquest Premium – Carquest Ambient Air Temperature Sensor, WTA1098 (Part No.WTA1098)

Carquest Ambient Air Temperature Sensor, 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.
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aFe POWER – aFe POWER Sprint Booster Throttle Enhancer Power Converter, 77-16302 (Part No.77-16302)

aFe POWER Sprint Booster Throttle Enhancer Power Converter, 77-16302

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

Delphi Fuel Tank Cleaning Kit, 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.
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Motorad – Motorad Non-Locking Tethered Fuel Tank Cap, MGC844T (Part No.MGC844T)

Motorad Non-Locking Tethered Fuel Tank Cap, 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.
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Carquest Premium – Carquest Non-Locking Fuel Tank Cap, 10844 (Part No.10844)

Carquest Non-Locking Fuel Tank Cap, 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.
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Carquest Premium – Carquest Fuel Injector Seal Kit Remanufactured, AS017 (Part No.AS017)

Carquest Fuel Injector Seal Kit Remanufactured, 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.
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Carquest Premium – Carquest Fuel Cap Tester Adapter:, 12426 (Part No.12426)

Carquest Fuel Cap Tester Adapter:, 12426

from

$11.79
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.
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Rein – Rein Breather Hose, ABV0200 (Part No.ABV0200)

Rein Breather Hose, ABV0200

from

$83.99
Rein automotive OE quality breather hose fit European vehicles the way the original manufacturer intended. Designed to be direct replacements for OE hoses, Rein hoses are identical to the OEM, from the size and shape of their branches to the thermoplastic quick connect fittings.
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Rein – Rein Breather Hose, ABV0109R (Part No.ABV0109R)

Rein Breather Hose, 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.
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Continental – Continental Mass Air Flow Sensor, 5WK97502Z (Part No.5WK97502Z)

Continental Mass Air Flow Sensor, 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.
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Continental – Continental Integrated Mass Air Flow Sensor, A2C59511576 (Part No.A2C59511576)

Continental Integrated Mass Air Flow Sensor, A2C59511576

from

$318.99
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.
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Dorman – Help – Dorman – Help Positive Crankcase Ventilation System Oil Separator, 46103 (Part No.46103)

Dorman - Help Positive Crankcase Ventilation System Oil Separator, 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.
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Carquest Premium – Carquest Evaporative Emissions System Leak Detection Pump, VDC1019 (Part No.VDC1019)

Carquest Evaporative Emissions System Leak Detection Pump, 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.
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Carquest Premium – Carquest Idle Air Control Valve, ABC3727 (Part No.ABC3727)

Carquest Idle Air Control Valve, 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.
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Bosch – "Bosch Oxygen Sensor: 4 Wire, 11.42"" Long, Heated, Exact Fit, 15668" (Part No.15668)

"Bosch Oxygen Sensor: 4 Wire, 11.42"" Long, Heated, Exact Fit, 15668"

from

$74.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
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NTK – "NTK Switching Oxygen Sensor: 4 Wire, 11.5"" Long, Heated, Direct Fit, 25569" (Part No.25569)

"NTK Switching Oxygen Sensor: 4 Wire, 11.5"" Long, Heated, Direct Fit, 25569"

from

$104.99
NGK is the sensor specialist for import and domestic applications. Established under the NGK product family, oxygen sensors are part of our ongoing commitment to streamlining product types and increasing coverage. A ceramic company at our core, uses cutting-edge technology to control the ceramic used in our oxygen sensors from raw material to finished product. 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.
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Bosch – "Bosch Oxygen Sensor: 4 Wire, 24.92"" Long, Heated, Universal, 15733" (Part No.15733)

"Bosch Oxygen Sensor: 4 Wire, 24.92"" Long, Heated, Universal, 15733"

from

$92.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
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Bosch – "Bosch Wideband Oxygen Sensor: 5 Wire, 35.24"" Long, Heated, Exact Fit, 17099" (Part No.17099)

"Bosch Wideband Oxygen Sensor: 5 Wire, 35.24"" Long, Heated, Exact Fit, 17099"

from

$194.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
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NTK – "NTK Switching Oxygen Sensor: 4 Wire, 17"" Long, Heated, Direct Fit, 25613" (Part No.25613)

"NTK Switching Oxygen Sensor: 4 Wire, 17"" Long, Heated, Direct Fit, 25613"

from

$148.99
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.
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URO Parts – URO Parts Air Pump, 11727571591 (Part No.11727571591)

URO Parts Air Pump, 11727571591

from

$123.99
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.
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Upgrade your 2004 BMW Z4 with Top-Quality Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2004 BMW Z4, 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 Z4 functioning at its best. At Advance Auto Parts, we offer a wide selection of 40 Fuel and Emissions Systems for the 2004 BMW Z4, designed to meet your needs without breaking the bank. From Oxygen Sensor 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 Z4 at great prices. Our Fuel and Emissions Systems inventory for this model ranges from just $3.99 to $325.99, with an average price of $95.39. Our 40 Fuel and Emissions Systems in stock come from 14 trusted brands, so you’re sure to find the right part for your 2004 BMW Z4 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 Z4, we stock popular OEM and aftermarket Fuel and Emissions Systems from top names like Bosch, NTK, Carquest Premium, and more. Bosch Fuel and Emissions Systems start at just $76.99 and boast an impressive 4.7 stars average rating from customers. NTK and Carquest Premium also bring quality to the table, with Fuel and Emissions Systems available starting at $43.99, and at an average 4.6 stars rating. With 140 customer reviews and counting, our 2004 BMW Z4 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 Z4 is always ready to roll. We’re committed to providing you with everything you need to keep your Z4 in top shape, all in one place. Start shopping confidently below for your 2004 BMW Z4!

Best-Selling Oxygen Sensors for 2004 BMW Z4s

Enhance the driving experience in your BMW with 8 quality Oxygen Sensor components, starting at $56.99.

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

"Bosch Oxygen Sensor: 4 Wire, 38.39"" Long, Heated, Exact Fit, 15109"

from

$76.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
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Bosch – "Bosch Oxygen Sensor: 4 Wire, 11.42"" Long, Heated, Exact Fit, 13477" (Part No.13477)

"Bosch Oxygen Sensor: 4 Wire, 11.42"" Long, Heated, Exact Fit, 13477"

from

$79.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
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NTK – "NTK Switching Oxygen Sensor: 4 Wire, 11.5"" Long, Heated, Direct Fit, 25569" (Part No.25569)

"NTK Switching Oxygen Sensor: 4 Wire, 11.5"" Long, Heated, Direct Fit, 25569"

from

$104.99
NGK is the sensor specialist for import and domestic applications. Established under the NGK product family, oxygen sensors are part of our ongoing commitment to streamlining product types and increasing coverage. A ceramic company at our core, uses cutting-edge technology to control the ceramic used in our oxygen sensors from raw material to finished product. 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.
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Bosch – "Bosch Oxygen Sensor: 4 Wire, 24.02"" Long, Heated, Universal, 15738" (Part No.15738)

"Bosch Oxygen Sensor: 4 Wire, 24.02"" Long, Heated, Universal, 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.
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Bosch – "Bosch Oxygen Sensor: 4 Wire, 11.42"" Long, Heated, Exact Fit, 15668" (Part No.15668)

"Bosch Oxygen Sensor: 4 Wire, 11.42"" Long, Heated, Exact Fit, 15668"

from

$74.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
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NTK – "NTK Wideband Oxygen Sensor: Air-Fuel Ratio 5 Wire, 17.5"" Long, Heated, Direct Fit, 25587" (Part No.25587)

"NTK Wideband Oxygen Sensor: Air-Fuel Ratio 5 Wire, 17.5"" Long, Heated, Direct Fit, 25587"

from

$123.99
NTK is the world’s largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, NTK uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
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DENSO – "DENSO Oxygen Sensor: 4 Wire, 11.77"" Long, Heated, Universal Fit, 234-4201" (Part No.234-4201)

"DENSO Oxygen Sensor: 4 Wire, 11.77"" Long, Heated, Universal Fit, 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.
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PowerStop – PowerStop Z16 Low-Dust Ceramic Brake Pads, 16-396 (Part No.16-396)

PowerStop Z16 Low-Dust Ceramic Brake Pads, 16-396

from

$56.99
The Power Stop Z16 Evolution ceramic brake pads feature a ceramic formula designed to maximize stopping power while reducing brake dust & eliminating noise. Using OE positive mold technology along with a thermal scorched pad surface, Z16 pads maintain consistent wear and performance while ensuring a fast break-in. The Z16 Evolution ceramic brake pads are an affordable stock replacement for all vehicles.
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Most Popular 2004 BMW Z4 Fuel Injectors

Customize your BMW with 9 Fuel Injectors products like Air Flow Meters and Mass Air, Fuel Injector Gaskets, and Fuel Injectors, all priced under $318.99.

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

Carquest Fuel Injector Seal Kit Remanufactured, 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.
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Carquest Premium – Carquest Remanufactured Multi Port Fuel Injector, A212-1725 (Part No.A212-1725)

Carquest Remanufactured Multi Port Fuel Injector, 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.
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Carquest Premium – Carquest New Mass Air Flow Sensor – Complete Assembly, MQ7291 (Part No.MQ7291)

Carquest New Mass Air Flow Sensor - Complete Assembly, MQ7291

from

$144.99
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.
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Carquest Premium – Carquest New Mass Air Flow Sensor – Complete Assembly, MQ7284 (Part No.MQ7284)

Carquest New Mass Air Flow Sensor - Complete Assembly, MQ7284

from

$186.99
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.
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Carquest Premium – Carquest Remanufactured Multi Port Fuel Injector, A212-1735 (Part No.A212-1735)

Carquest Remanufactured Multi Port Fuel Injector, A212-1735

from

$61.99
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.
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Continental – Continental Integrated Mass Air Flow Sensor, A2C59511576 (Part No.A2C59511576)

Continental Integrated Mass Air Flow Sensor, A2C59511576

from

$318.99
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, 77-16302 (Part No.77-16302)

aFe POWER Sprint Booster Throttle Enhancer Power Converter, 77-16302

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.
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Hella – Hella Mass Air Flow Sensor – 6-Pin Connector – Pipe-Neck, 358095891 (Part No.358095891)

Hella Mass Air Flow Sensor - 6-Pin Connector - Pipe-Neck, 358095891

from

$141.99
Breathe easy and drive smarter with HELLA’s Mass Air Flow Sensor. It delivers pinpoint airflow data for spot-on fuel-to-air ratios-boosting power, MPG, and throttle response. Plug-and-play install, OE-level accuracy, and the performance your engine craves.
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Felpro – Felpro Fuel Injection Throttle Body Mounting Gasket, 61902 (Part No.61902)

Felpro Fuel Injection Throttle Body Mounting Gasket, 61902

from

$9.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Top Picks for 2004 BMW Z4 Gas Caps

Upgrade BMW Z4s with top-quality Gas Caps parts, including 2 OEM and aftermarket selections for your 2004 model.

Carquest Premium – Carquest Non-Locking Fuel Tank Cap, 10844 (Part No.10844)

Carquest Non-Locking Fuel Tank Cap, 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)

Motorad Non-Locking Tethered Fuel Tank Cap, 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.
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In-Demand Fuel Tanks for 2004 BMW Z4s

Select from 1 premium Fuel Tanks parts for your 2004 BMW Z4.

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

Delphi Fuel Tank Cleaning Kit, 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

Most Sold 2004 BMW Z4 Fuel Pumps

Explore our best-selling BMW parts for the 2004 Z4 among 2 OEM and aftermarket options starting from $11.79.

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

Carquest Evaporative Emissions System Leak Detection Pump, 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.
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Carquest Premium – Carquest Fuel Cap Tester Adapter:, 12426 (Part No.12426)

Carquest Fuel Cap Tester Adapter:, 12426

from

$11.79
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.
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Top-Rated Fuel and Emissions Systems Brands For Your 2004 BMW Z4

Shop for the best-rated brands offering Fuel and Emissions Systems and other products for your 2004 BMW Z4s. Below you’ll find some of our best rated Fuel and Emissions Systems from Bosch, NTK, and Carquest Premium, and more. Fuel and Emissions Systems from these brands that fit a 2004 Z4 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 Z4 Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2004 BMW Z4, 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 Z4. 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 $76.99, with an average price of just $78.49. 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.
"Bosch Oxygen Sensor: 4 Wire, 38.39"" Long, Heated, Exact Fit, 15109"
from $76.99
(16)
"Bosch Oxygen Sensor: 4 Wire, 38.39"" Long, Heated, Exact Fit, 15109"
“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 ”
"Bosch Oxygen Sensor: 4 Wire, 11.42"" Long, Heated, Exact Fit, 13477"
from $79.99
(14)
"Bosch Oxygen Sensor: 4 Wire, 11.42"" Long, Heated, Exact Fit, 13477"
“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”

Popular NTK 2004 BMW Z4 Fuel and Emissions Systems

NTK auto parts is one of the highest quality Fuel and Emissions System brands in the market. Any 2004 BMW Z4 owner should feel confident when installing genuine NTK parts in their vehicle. To ensure the best fit and performance for your 2004 Z4, Advance Auto Parts carries a full inventory of 1 NTK Fuel and Emissions Systems. Plus you will be keeping your BMW in peak condition while saving money because prices on these NTK Fuel and Emissions Systems range up to $104.99, plus, with more than 2 customer reviews and an impressive 4.6 stars average rating, you can be confident the Fram Fuel and Emissions Systems below will deliver on both quality and value.
"NTK Switching Oxygen Sensor: 4 Wire, 11.5"" Long, Heated, Direct Fit, 25569"
from $104.99
(2)
"NTK Switching Oxygen Sensor: 4 Wire, 11.5"" Long, Heated, Direct Fit, 25569"
“Installed two in a 200 528i BMW in pre-cat application. Remove and Replace took 15 minutes for each sensor. Copper anti-seize paste was included in ”

FAQs for 2004 BMW Z4 Fuel and Emissions Systems

Which Fuel and Emissions Systems are best-sellers for 2004 BMW Z4s?

Out of 40 Fuel and Emissions Systems that fit 2004 BMW Z4s, the following parts are the top sellers:

What’s the price range for 2004 BMW Z4 Fuel and Emissions Systems?

Fuel and Emissions System prices for the 2004 BMW Z4 start at $3.99 and go up to $325.99 for the most premium parts.

What’s the average price of a Fuel and Emissions System for a 2004 BMW Z4?

The average price for Fuel and Emissions Systems for the 2004 BMW Z4 is $95.39. 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 Z4 model years?

Yes, we currently carry Fuel and Emissions Systems for 20 model years of BMW Z4s between 2003 and 2026. Fuel and Emissions Systems are bought most frequently for the following model years: 2023, 2022, 2021, 2020, 2019, 2016, 2015, 2014, and 2013.

What are the cheapest Fuel and Emissions Systems for my 2004 BMW Z4?

The cheapest 2004 BMW Z4 Fuel and Emissions Systems we carry in stock are:

What are the top-rated Fuel and Emissions Systems that fit the 2004 BMW Z4?

Out of 140 reviews by customers, our 2004 BMW Z4 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 Z4 and their top-rated products:

What types of Fuel and Emissions Systems do you sell for my 2004 BMW Z4?

As of 8/2/26, these are some of the most in-demand types of Fuel and Emissions Systems for a 2004 BMW Z4:

Can I get help with 2004 BMW Z4 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 Z4 Fuel and Emissions Systems?

Advance Auto Parts keeps returns simple. For new BMW Z4 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.