2004 Mercury Grand Marquis Fuel and Emissions Systems

Name: Vapor Canister Vent Solenoid
Brand: Carquest Premium
SKU: CPC1106
Price: 133.99 USD

Below you will find various in-demand Mercury Fuel and Emissions Systems, components and accessories for your 2004 Grand Marquis. Advance Auto Parts has popular Grand Marquis parts like Fuel Pumps, Oxygen Sensors, Air Flow Sensors and more. You’ll also find aftermarket and OEM Fuel and Emissions Systems for other Grand Marquis model years including 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011 and more. Select a category of 2004 Mercury Grand Marquis Fuel and Emissions Systems below and start saving instantly.

Popular 2004 Mercury Grand Marquis Fuel and Emissions Systems Categories

Fuel Tank Cleaning Kits

Air Flow Meters and Mass Air

Gas Caps

Fuel Pumps

Oxygen Sensors

Vapor Canister Vent Solenoids

Fuel Filler Neck Seals

Fuel Injection Pressure Sensors

Canister Purge Solenoids

Fuel Tanks

EGR Valves

Fuel Injectors

Fuel Pump Hanger Assemblies

Idle Air Parts

Vapor Canisters

Fuel Injector O-Ring Kits

Electric Pump Filter and Strainers

Fuel Injector Seal Kits

Fuel Injection Idle Air Control Valve Gaskets

Fuel Tank Straps

Fuel Injector Gaskets

EGR Lines

Fuel Tank Filler Necks

EGR Valve Control Switches

Mass Air Flow Sensor Connectors

Fuel Line Connectors

Idle Air Control Valve Connectors

EGR Tubes

EGR Valve Gaskets

Fuel Pump and Sending Unit Connectors

Ambient Air Temperature Sensor Clip

Fuel Cap Tester Adapters

EGR Valve Motor Connectors

Essential Fuel and Emissions Systems for 2004 Mercury Grand Marquis

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$133.99

Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

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$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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$198.99

Carquest Premium fuel pump hanger 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 hanger assemblies are supplied with the pump strainer and gaskets or seals when required for the application. Carquest Premium fuel pump hanger assemblies 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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$242.99

New Platinum Pro Fuel Tank 4.6Ltr V8, 19 Gallons, With Roll-Over Valve

Product Features:

19 Gallons, With Roll-Over Valve
Meets All Federal Motor Safety Standards
No Drilling Needed For Installation
No Modifications Needed For Installation
Direct Fit Replacement For Your Vehicle
Same Form Fit And Function As OE
Check Out The Large Selection Of Parts Available For Your Vehicle

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$4.99

This fuel injection idle air control valve gasket is designed to match the fit and function of the original gasket on specified vehicles, and is engineered for durability and reliable performance.

Product Features:

Direct replacement – this fuel injection idle air control valve gasket is designed to match the fit and function of the original gasket on specified vehicles
Restores functionality – this gasket is made to fit and fully restore part functionality after the original gasket 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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$102.99

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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$15.49

Product Features:

Reduces air pollution with proper sealing and venting
Manufactured from durable, long-life materials
Reduces air pollution with proper sealing and venting
Independently tested for emission control

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$59.99

This exhaust gas recirculation (EGR) line is designed to match the fit of an original EGR line on specified vehicles. It is engineered to help restore proper air-fuel balance when a line is malfunctioning due to deposits built up in the EGR valve.

Product Features:

Direct replacement – this exhaust gas recirculation line is designed to match the fit and function of the original equipment EGR line
Ideal solution – engineered to help restore proper air-fuel balance when a line is malfunctioning due to deposits built up in the EGR valve
Durable construction – designed and manufactured to strict specifications for reliable performance
Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience

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$8.49

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.

Product Features:

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Unsurpassed quality you can trust
Validated for fit, form, and function

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$39.99

The EGR system is an emission control device designed to recirculate exhaust gas into the engines air intake system and back to the combustion chamber to control nitrogen oxides or NOx. The chemical NOx is created when oxygen and nitrogen are heated above 2,800-degree F. Exhaust gas, or gas that is displaced from the combustion chamber, contains little to no oxygen molecules. By recirculating this gas back into the combustion chamber fewer oxygen molecules are available for the combustion event which will therefore create a cooler combustion event. The EGR valve can be actuated by engine vacuum or electronically by the engine control module.

Product Features:

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Our EGR valves are designed to match the vehicle specific exhaust gas flow rate as designed by the engine manufacturer to provide clean tail pipe emissions.
Feedback EGR valves and pressure sensors contain a robust circuit board design which increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
Where applicable stainless-steel sleeves used over cold rolled sleeves providing smooth EGR pintle operation under all operating conditions.

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$181.99

Mechanical fuel pump made from heavy duty construction for continuous high RPM operation. Fuel body casting can be rotated to accommodate various plumbing situations. Fuel pressure regulator is not required.

Product Features:

High Output Fuel Flow
Flows 110 gph Free Flow
Shutoff Pressure Pre-Set From 6.5 To 8 PSI
Fuel Pressure Regulator Is Not Required
Heavy Duty Construction For Continuous High rpm Operation
Fuel Body Casting Can Be Rotated For Plumbing Situations
Inlet And Outlet Tapped For 3/8 in. NPT
Inlet/Outlet Tapped For 3/8 in. NPT

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$11.49

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:

Filtration performance and micron rating meet or exceed OE requirements
OE replacement strainer designed for use with Delphi electric fuel pumps
Replacing the strainer is always recommended when replacing a fuel pump

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$155.99

Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium fuel tank filler necks meet or exceed the performance of the original equipment they replace.

Product Features:

Unit is designed to OE fit, form and function requirements accomplished by leveraging our OE fuel system design expertise
Unit is dual coated for enhanced corrosion protection
Fit tested on the very same vehicle application for which it was developed verifying first-hand that the design fits properly and can be easily installed
Unit is leak tested after production to ensure product in free from fuel and / or evaporative leaks
Tested with OE fuel cap to prevent evaporative emission and check engine light failure

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$26.99

New Platinum Pro Fuel Tank Strap, Pair

Product Features:

Pair
Meets All Federal Motor Safety Standards
No Drilling Needed For Installation
No Modifications Needed For Installation
Direct Fit Replacement For Your Vehicle
Same Form Fit And Function As OE
Check Out The Large Selection Of Parts Available For Your Vehicle

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$97.99

Pressure sensors are used within several operating systems on the vehicle. Subjects in this category measure the pressure of both liquid and air to include air in a positive pressure and negative pressure range. Pressure sensors report out as the result of an electrical device called a strain gauge which produces an analog or digital signal output dependent on the needs of the circuit. Pressures may be very low such as barometric pressure, or extremely high such as in a high-pressure fuel injection system.

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.
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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$82.99

Hitachi’s Air Bypass Valves (ABVs) is designed to accurately regulate the amount of air entering the engine when at idle (also known as an Idle Speed Control (ISC) Valve and Idle Air Control (IAC) Valve). High quality materials ensure that even under the most extreme conditions, Hitachi’s ABVs will not deform or malfunction. Our ABVs are 100% air flow tested for ideal performance and are calibrated for each application ensuring your vehicle meets the strict emission standards set by the OE manufacturer which makes Hitachi’s ABVs the premium choice. The Hitachi designed air bypass valves have precise response time and flexible flow capability to maintain constant system pressure. They create a safer driving experience by suppressing backfire during deceleration and virtually eliminating the chance of hydro-lock. Hitachi is a Tier One OE supplier to the largest automobile manufacturers globally, delivery industry leading quality, and exceeding customer expectations with our products and service. Hitachi is bringing that same knowledge and expertise to the premium products we deliver in the Aftermarket because Quality Matters.

Product Features:

100% air flow tested for ideal performance
100% NEW, never remanufactured
Hitachi is a Tier 1 OE supplier for air bypass valves
Meets the OE performance and durability standards for this application
O-Ring/Gasket included when applicable
Precision machined moving components and contact surfaces with a durable cast aluminum body
Restores original drivability characteristics
Quick response Time; Flexible flow capability and low current draw.

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$69.99

Wire Assembly

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$92.99

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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$48.99

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Our EGR valves are designed to match the vehicle specific exhaust gas flow rate as designed by the engine manufacturer to provide clean tail pipe emissions.
Feedback EGR valves and pressure sensors contain a robust circuit board design which increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
Where applicable stainless-steel sleeves used over cold rolled sleeves providing smooth EGR pintle operation under all operating conditions.

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$96.99

The Secondary Air Injection system is an emission control device designed to pump fresh air into the engine exhaust system to reduce harmful emissions. The Air Injection Pipe directs the air flow in the system based on ambient temperature conditions and engine operating conditions.

Product Features:

Application matched component to ensure the system can be returned to like new condition.
Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.

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$17.79

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

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$72.99

O2 Sensor

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$10.29

The ACDelco Professional Fuel Injector Seal Kit contains high quality aftermarket replacement components for one or more of the following vehicle systems: ignition, and/or engine fuel management. This premium aftermarket kit contains components that are 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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$21.99

This fuel filler neck seal is designed to match the fit and function of the original seal on specified vehicles, and is engineered for durability and reliable performance.

Product Features:

Direct replacement – this fuel filler neck seal is designed to match the fit and function of the original seal on specified vehicles
Restores functionality – this seal is made to fit and fully restore part functionality after the original seal 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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$62.99

Make better electrical repairs and accessory installations with a Dorman pigtail connector. This idle air control valve connector is designed to match performance of the original equipment connector on specified vehicles. Engineered for a clean appearance when installed, Dorman connectors are ideal for neatly securing wiring jobs in automotive, commercial, industrial and household applications. Our pigtails are constructed from quality materials for long service life and resistance to the elements, and offer a range of features including locking tabs, weatherproof seals and more, where applicable. Check the product details to choose the best product for your electrical wiring needs.

Product Features:

Direct replacement – this idle air control valve connector is designed to match performance of the original equipment connector on specified vehicles
Ensure fit – check the product details to choose the best product for your needs
Durable construction – designed and manufactured to strict specifications for reliable performance
Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience

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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.
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

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$52.99

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

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$84.99

The Evaporative Emission System is designed to control fuel vapors in the vehicle fuel storage system to prevent any release of fuel vapors into the atmosphere. In a normally operating system, released vapors from the fuel storage tank will be directed into an on-board charcoal canister via a piping system and control valves. Under the most ideal engine operating condition, the vapors will be pulled into the engine to be burned during the normal combustion process.

Product Features:

Application matched components ensure the vehicle will be returned to like new condition.
Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Features application specific mounting bracket and accessories as the dealer purchased part provides ease of installation.
Canister carbon volumn equal to original equipment providing maximum hydrocarbon emission control.

Upgrade your 2004 Mercury Grand Marquis with Top-Quality Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2004 Mercury Grand Marquis, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Mercury or enhancing its overall performance, Fuel and Emissions Systems are key to keeping your Grand Marquis functioning at its best. At Advance Auto Parts, we offer a wide selection of 63 Fuel and Emissions Systems for the 2004 Mercury Grand Marquis, designed to meet your needs without breaking the bank. From Fuel Pump replacements to Oxygen Sensors 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 Mercury Grand Marquis at great prices. Our Fuel and Emissions Systems inventory for this model ranges from just $0.99 to $432.99, with an average price of $82.61. Our 63 Fuel and Emissions Systems in stock come from 16 trusted brands, so you’re sure to find the right part for your 2004 Mercury Grand Marquis 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 Mercury Grand Marquis, we stock popular OEM and aftermarket Fuel and Emissions Systems from top names like Bosch, FELPRO, Dorman, and more. Bosch Fuel and Emissions Systems start at just $50.99 and boast an impressive 4.7 stars average rating from customers. FELPRO and Dorman also bring quality to the table, with Fuel and Emissions Systems available starting at $2.99, and at an average 4.6 stars rating. With 1,096 customer reviews and counting, our 2004 Mercury Grand Marquis 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 Mercury Grand Marquis is always ready to roll. We’re committed to providing you with everything you need to keep your Grand Marquis in top shape, all in one place. Start shopping confidently below for your 2004 Mercury Grand Marquis!

Best-Selling Fuel Pumps for 2004 Mercury Grand Marquis

Enhance the driving experience in your Mercury with 8 quality Fuel Pump components, starting at $21.99.

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$21.99

This fuel filler neck seal is designed to match the fit and function of the original seal on specified vehicles, and is engineered for durability and reliable performance.

Product Features:

Direct replacement – this fuel filler neck seal is designed to match the fit and function of the original seal on specified vehicles
Restores functionality – this seal is made to fit and fully restore part functionality after the original seal 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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$171.99

Carquest Premium electric fuel pumps are engineered by Carter Fuel Systems or Agility Auto Parts to meet or exceed Original Equipment (OE) specifications for fit, form and function. Our Carquest Premium fuel pumps are built to be installed in the Original Equipment module or assembly. We have invested in industry-leading quality upgrades, like upgraded turbine impellers and 100% carbon commutators, to deliver greater reliability. Carquest Premium electric fuel pumps 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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$225.99

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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$35.99

Filtration performance and micron rating meet or exceed OE requirements
OE replacement strainer designed for use with Delphi electric fuel pumps
Replacing the strainer is always recommended when replacing a fuel pump

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$324.99

Delphi is a global OE manufacturer and all fuel pumps are built to Delphi’s OE standards
Delphi pumps are designed to operate under extreme temperatures with quick engine starts and to avoid low-fuel hesitation, including alcohol fuels and blends
Metal tubes in Delphi hangers are routed so as to not contact the tank or vehicle underbody at any point eliminating noise and vibration during vehicle operation
Empty float height and float retention matches OE specifications and guarantees correct gas gauge reading
Restores fast pressure performance and system integrity, translating to better pumping through less energy
Lower failure rates due to its innovative design and durability
Part is validated, tested and matched to the right vehicle application
Lower amperage draws less load on vehicle’s electrical system
Always be sure to check and clean fuel tank to avoid unnecessary returns

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$187.99

Delphi is a global OE manufacturer and all fuel pumps are built to Delphi’s OE standards
Delphi pumps are designed to operate under extreme temperatures with quick engine starts and to avoid low-fuel hesitation, including alcohol fuels and blends
Improved pump performance as a result of Delphi’s innovative design and durability
Restores fast pressure performance and system integrity, translating to better pumping through less energy
Part is validated, tested and matched to the right vehicle application
When servicing the fuel system, always check the fuel filter for possible replacement
Always be sure to check and clean fuel tank to avoid unnecessary returns
Always replace the fuel strainer when doing a fuel pump repair

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$161.99

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. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system or operating system fault.

Product Features:

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.

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$36.49

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 Mercury Grand Marquis Oxygen Sensors

Customize your Mercury with 9 Oxygen Sensors products like Oxygen Sensors, all priced under $81.99.

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$72.99

O2 Sensor

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$66.99

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.

Product Features:

OEM QUALITY: is the world’s largest supplier of original equipment oxygen sensors with renowned quality that meets or exceeds OEM specifications
PRODUCT ENGINEERING: Based on OE expertise, but specifically engineered for the aftermarket, Oxygen Sensors offer superior OE fit, form, function
OE TECHNOLOGY: Upgraded to the latest OE technologies, Oxygen Sensors are designed to reduce OE failures, enhance durability and performance
EXTENSIVE TESTING: OE development includes vibration and thermal shock testing. Testing during manufacturing guarantees quality and reliability
EASY INSTALLATION: Oxygen Sensors are equipped with OE specified, water-resistant connectors and harness accessory hardware for easy installation
ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning
ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability

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$61.99

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:

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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$64.99

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. 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.

Product Features:

OEM QUALITY: is the world’s largest supplier of original equipment oxygen sensors with renowned quality that meets or exceeds OEM specifications
PRODUCT ENGINEERING: Based on OE expertise, but specifically engineered for the aftermarket, Oxygen Sensors offer superior OE fit, form, function
OE TECHNOLOGY: Upgraded to the latest OE technologies, Oxygen Sensors are designed to reduce OE failures, enhance durability and performance
EXTENSIVE TESTING: OE development includes vibration and thermal shock testing. Testing during manufacturing guarantees quality and reliability
EASY INSTALLATION: Oxygen Sensors are equipped with OE specified, water-resistant connectors and harness accessory hardware for easy installation
ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning
ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability

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$50.99

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
Includes Smart Link Connector, no soldering required
No special tools required for installation
Seared protection tube due to 100% functional quality test
Performance meets or exceeds OE specifications

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$81.99

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

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$51.99

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

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$58.99

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

Top Picks for 2004 Mercury Grand Marquis Air Flow Sensors

Upgrade Mercury Grand Marquis with top-quality Air Flow Sensors parts, including 2 OEM and aftermarket selections for your 2004 model.

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$69.99

Wire Assembly

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$0.99

Constructed of quality materials, this multi-purpose retainer provides the same function and versatility as the original equipment retainer ensuring long service life.

Product Features:

Ideal replacement – this retainer matches the fit and function of the original equipment retainer for this vehicle application
Quality material – this retainer is made of durable material for long-lasting service
Versatile design – this retainer is suitable for a variety of automotive uses
Excellent value – this part offers original equipment quality at a competitive cost

In-Demand Fuel Injectors for 2004 Mercury Grand Marquis

Select from 12 premium Fuel Injectors parts for your 2004 Mercury Grand Marquis, with prices ranging from $2.99 to $221.99.

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$2.99

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered and manufactured specifically for the repair environment
Unsurpassed quality you can trust
Validated for fit, form, and function

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$8.49

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Unsurpassed quality you can trust
Validated for fit, form, and function

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$8.99

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

from

$9.99

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

from

$57.99

CARQUEST’S line of remanufactured OEM fuel injectors are remanufactured using a proven 15 step process at a state-of-the-art remanufacturing facility in the U.S.A. Each injector is 100% tested under multiple operating conditions to ensure each injector meets or exceeds OE specifications for flow rate, spray pattern, coil resistance, form, fit and function. Each injector includes new external seals and O-rings.

Product Features:

Each unit is 100% tested to OE specifications
Includes new O-rings and seals made of premium OE quality materials
Includes application specific technical bulletin, where applicable

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$89.99

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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$4.29

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.

Product Features:

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered and manufactured specifically for the repair environment
Unsurpassed quality you can trust
Validated for fit, form, and function

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$8.99

High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:

Designed to OE standards for ease of installation
High-quality materials withstand extreme conditions
Undergoes extensive testing to ensure reliability
As a global manufacturer of automotive aftermarket products, we maintain complete quality control throughout the manufacturing process

from

$126.99

CARDONE Remanufactured Mass Air Flow Sensors (MAFS) precisely track O.E. output curves and maintain specific tolerances to ensure accurate scan tool readings for proper operation. 100% re-soldering of critical components ensures superior electrical connections, eliminates intermittent failures and lengthens product life. With CARDONE Mass Air Flow Sensors (MAFS), you can expect smooth vehicle performance.

Product Features:

100% re-solder of critical components ensures superior electrical connections, no intermittent failures and longer product life.
On-car vehicle validation routines ensure that modules meet all form, fit, durability and performance requirements.
All modules are 100% tested with automated computer test equipment to ensure full functionality and reliability.
Our sensors precisely track O.E. output curves and maintain spec tolerances to ensure accurate feedback to the vehicle┐s engine control management system.
Components are rated to handle demanding temperature variations for optimum reliability in every environment.
As a remanufactured Original Equipment part, this unit guarantees a perfect vehicle fit.
Our remanufacturing process is earth-friendly, as it reduces the energy and raw material needed to make a new part by 80%.

from

$221.99

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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$8.99

With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

Product Features:

Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.

from

$2.99

Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.

Most Sold 2004 Mercury Grand Marquis Gas Caps

Explore our best-selling Mercury parts for the 2004 Grand Marquis among 4 OEM and aftermarket options starting from $20.99.

show more show less

from

$20.99

Product Features:

Manufactured from durable, long-life materials
Manufactured from durable, long-life materials
Reduces air pollution with proper sealing and venting
Independently tested for emission control

from

$33.49

Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.

Product Features:

Protects your fuel from theft and vandalism
Passes all state and federal emissions tests
Manufactured from durable, long-life materials
Reduces air pollution with proper sealing and venting
Independently tested for emission control

from

$30.49

Come pre-assembled for quick and easy installation.
Several fastener options to work with any fuel cap compartment configuration
Fits vehicles orginally equipped with tether
Reduces air pollution with proper sealing and venting
Manufactured from durable, long-life materials

from

$28.99

FUEL TANK CAP

Top-Rated Fuel and Emissions Systems Brands For Your 2004 Mercury Grand Marquis

Shop for the best-rated brands offering Fuel and Emissions Systems and other products for your 2004 Mercury Grand Marquis. Below you’ll find some of our best rated Fuel and Emissions Systems from Bosch, FELPRO, and Dorman, and more. Fuel and Emissions Systems from these brands that fit a 2004 Grand Marquis start at just $2.99 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 Mercury Grand Marquis Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2004 Mercury Grand Marquis, 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 Mercury Grand Marquis. With over 3 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 $50.99, with an average price of just $64.32. Plus, with over 174 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 $61.99

(129)

Oxygen Sensor: 4 Wire, 15.43" Long, Heated, Exact Fit

“Good”

from $50.99

(33)

Oxygen Sensor: 4 Wire, 18.94" Long, Heated, Exact Fit

“Ok”

from $79.99

(12)

Oxygen Sensor: 4 Wire, 24.02" Long, Heated, Universal

“At first, looking at the product, I wasn’t sure what to think. After installing… great product application. I had trouble finding a sensor with th”

Popular FELPRO 2004 Mercury Grand Marquis Fuel and Emissions Systems

FELPRO auto parts is one of the highest quality Fuel and Emissions System brands in the market. Any 2004 Mercury Grand Marquis owner should feel confident when installing genuine FELPRO parts in their vehicle. To ensure the best fit and performance for your 2004 Grand Marquis, Advance Auto Parts carries a full inventory of 3 FELPRO Fuel and Emissions Systems. Plus you will be keeping your Mercury in peak condition while saving money because prices on these FELPRO Fuel and Emissions Systems range from $2.99 to $8.49, plus, with more than 149 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.

from $2.99

(8)

Fuel Injection Throttle Body Mounting Gasket

“It fit 05 f150 perfectly like it should.”

from $3.29

(32)

THROTTLE BODY GASKET SET

“Great”

from $8.49

(109)

Fuel Injector O-Ring Kit

“Good parts”

FAQs for 2004 Mercury Grand Marquis Fuel and Emissions Systems

Which Fuel and Emissions Systems are best-sellers for 2004 Mercury Grand Marquis?

Out of 63 Fuel and Emissions Systems that fit 2004 Mercury Grand Marquis, the following parts are the top sellers:

Fuel Injector O-Ring Kit (3504360) – $8.49
O2 Sensor (11977682) – $72.99
Switching Oxygen Sensor: 4 Wire, 17" Long, Heated, Direct Fit (20501734) – $66.99

What’s the price range for 2004 Mercury Grand Marquis Fuel and Emissions Systems?

Fuel and Emissions System prices for the 2004 Mercury Grand Marquis start at $0.99 and go up to $432.99 for the most premium parts.

What’s the average price of a Fuel and Emissions System for a 2004 Mercury Grand Marquis?

The average price for Fuel and Emissions Systems for the 2004 Mercury Grand Marquis is $82.61. 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 Mercury Grand Marquis model years?

Yes, we currently carry Fuel and Emissions Systems for 35 model years of Mercury Grand Marquis between 1975 and 2011. Fuel and Emissions Systems are bought most frequently for the following model years: 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2003, and 2002.

What are the cheapest Fuel and Emissions Systems for my 2004 Mercury Grand Marquis?

The cheapest 2004 Mercury Grand Marquis Fuel and Emissions Systems we carry in stock are:

Nylon Shield Retainer- Ford and GM (sold by each) (10916178) – $0.99
Fuel Injection Throttle Body Mounting Gasket (15780628) – $2.99
Fuel Injection Idle Air Control Valve Gasket (12547257) – $2.99
THROTTLE BODY GASKET SET (20688609) – $3.29
Gasket (10307523) – $3.99

What are the top-rated Fuel and Emissions Systems that fit the 2004 Mercury Grand Marquis?

Out of 1,096 reviews by customers, our 2004 Mercury Grand Marquis 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 Mercury Grand Marquis and their top-rated products:

Idle Air Control Parts
- Gasket (10307523) – $3.99
- Idle Air Valve Gaskets (17191248) – $4.99
- THROTTLE BODY GASKET SET (20688609) – $3.29

What types of Fuel and Emissions Systems do you sell for my 2004 Mercury Grand Marquis?

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

Can I get help with 2004 Mercury Grand Marquis 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 Mercury Fuel and Emissions Systems and more.

What is your return policy for Mercury Grand Marquis Fuel and Emissions Systems?

Advance Auto Parts keeps returns simple. For new Mercury Grand Marquis 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 Mercury Grand Marquis Fuel and Emissions Systems

Carquest Premium – Vapor Canister Vent Solenoid (Part No.CPC1106)

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

Carquest Premium – Fuel Pump Hanger Assembly: Wiring Harness and Strainer (Part No.HS3510454)

KAI – Fuel Tank (Part No.FTK010658)

Dorman – Help – Idle Air Valve Gaskets (Part No.90102)

Carquest Premium – Vapor Canister Purge Solenoid: Includes Mounting Hardware (Part No.CPE1154)

Carquest Premium – Non-Locking Fuel Tank Cap (Part No.10834)

Dorman – Exhaust Gas Recirculation Tube (Part No.598-142)

Felpro – Fuel Injector O-Ring Kit (Part No.ES 70599)

Carquest Premium – Exhaust Gas Recirculation (EGR) Valve Gasket (Part No.EVA1007)

Holley – Mechanical Fuel Pump (Part No.12-289-11)

Delphi – Fuel Pump Strainer (Part No.FS0120)

Spectra Premium – Fuel Filler Neck (Part No.FN1019)

KAI – Fuel Tank Strap (Part No.FST010127)

Carquest Premium – Fuel Injection Pressure Sensor (Part No.FPC1011)

Hitachi – Idle Air Control Valve New Actual OE Part (Part No.ABV0019)

Motorcraft – Wire Assembly (Part No.WPT-322)

Carquest Premium – Mass Air Flow Sensor (MAF) – 100% NEW (Part No.MQ6212)

Carquest Premium – Exhaust Gas Recirculation (EGR) Valve Control Solenoid (Part No.EGC1103)

Carquest Premium – Secondary Air Injection Pipe (Part No.EGP1143)

Carquest Premium – Fuel Cap Tester Adapter: (Part No.12410)

Motorcraft – O2 Sensor (Part No.DY-1401)

ACDelco – Fuel Injector Fuel Feed and Return Pipe O-Ring Kit with Seals with 2 O-Rings (Part No.217-3414)

Dorman – Fuel Filler Neck Grommet (Part No.577-501)

Dorman – Multi-Purpose Harness (Part No.645-211)

Carquest Premium – Multi-Use Connector (Part No.PTA1103)

Carquest Premium – Multi-Use Connector (Part No.PTA2708)

Carquest Premium – Vapor Canister (Part No.CPN1092)

Dorman – Fuel Filler Neck Grommet (Part No.577-501)

Carquest Premium – Fuel Pump (Part No.E2480532)

Carquest Premium – Fuel Pump Hanger Assembly: Fuel Pump, Sending Unit and Strainer (Part No.HS3510459)

Delphi – Fuel Pump Strainer (Part No.FS0092)

Delphi – Fuel Pump Hanger Assembly: With Float Arm, Retainer Clips (Part No.HP10233)

Delphi – Fuel Pump and Strainer Set: With Seal, Ziptie, Clamps, Isolator, Hose (Part No.FE0419)

Carquest Premium – Fuel Pump / Sending Unit Connector (Part No.FPC1096)

Carquest Premium – Fuel Cap Tester Adapter (Part No.12419)

Motorcraft – O2 Sensor (Part No.DY-1401)

NTK – Switching Oxygen Sensor: 4 Wire, 17" Long, Heated, Direct Fit (Part No.22500)

Bosch – Oxygen Sensor: 4 Wire, 15.43" Long, Heated, Exact Fit (Part No.15717)

NTK – Switching Oxygen Sensor: 4 Wire, 15.5" Long, Heated, Direct Fit (Part No.22060)

Bosch – Oxygen Sensor: 4 Wire, 18.94" Long, Heated, Exact Fit (Part No.15718)

Bosch – Oxygen Sensor: 4 Wire, 24.02" Long, Heated, Universal (Part No.15729)

DENSO – Oxygen Sensor: 4 Wire, 11.77" Long, Heated, Universal Fit (Part No.234-4210)

DENSO – Oxygen Sensor: 4 Wire, 18.11" Long, Heated, Exact Fit (Part No.234-4609)

DENSO – Oxygen Sensor: Upstream, 4 Wire, 18.90" Long, Heated, Exact Fit (Part No.234-4045)

Motorcraft – Wire Assembly (Part No.WPT-322)

Dorman – Nylon Shield Retainer- Ford and GM (sold by each) (Part No.700-614)

Felpro – Fuel Injection Throttle Body Mounting Gasket (Part No.61050)

Felpro – Fuel Injector O-Ring Kit (Part No.ES 70599)

Carquest Premium – Fuel Injector Seal Kit (Part No.AS008)

ACDelco – Fuel Injector Fuel Feed and Return Pipe O-Ring Kit with 8 O-Rings (Part No.217-3365)

Carquest Premium – Remanufactured Fuel Injector (Part No.A211-1502)

Carquest Premium – Mass Air Flow Sensor (MAF) – 100% NEW (Part No.MQ6270)

Felpro – Fuel Injection Throttle Body Mounting Gasket (Part No.61096)

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

Cardone – Remanufactured Mass Air Flow Sensor (Part No.74-50019)

Delphi – Mass Air Flow Sensor (Part No.AF10130)

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

Victor Reinz – Fuel Injection Idle Air Control Valve Gasket (Part No.71-13739-00)

Carquest Premium – Non-Locking Fuel Tank Cap (Part No.10832)

Carquest Premium – Locking Fuel Tank Cap (Part No.10502)

Motorad – Non-Locking Tethered Fuel Tank Cap (Part No.MGC832T)

Motorcraft – FUEL TANK CAP (Part No.FC-961)