2003 Mercury Grand Marquis Fuel and Emissions Systems

Essential 2003 Mercury Grand Marquis Fuel and Emissions Systems

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

Nylon Shield Retainer- Ford and GM (sold by each)

from

$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
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Carquest Premium – Oxygen Sensor Connector (Part No.PTA2964)

Oxygen Sensor Connector

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$58.99
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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Motorcraft – Crankcase Breather Hose (Part No.B2010307413MTR)

Crankcase Breather Hose

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$40.39
Motorcraft Positive Crankcase Ventilation Valve Hoses are designed and tested to meet OE requirements for durability and reliability under extreme conditions. These hoses are built to maximize the performance are made from high-quality materials ensuring lasting durability. They offer high resistance which enhances the hose life.

Product Features:
  • Ensures long lasting durability
  • Highly reliable
  • Made of high quality material
  • Resists abrasion and corrosion
  • Enhances hose life
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Dorman – EGR Tube Connector (Part No.917-416)

EGR Tube Connector

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$32.99
This EGR tube connector is designed to match the appearance and function of the original hardware on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this EGR tube connector matches the appearance and function of the factory hardware on specified applications
  • Ideal solution – this connector is a reliable replacement for an original part that is missing or has failed due to fatigue
  • 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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Dorman – OE Solutions Evaporative Purge Solenoid Valve (Part No.B70801097830DOR)

OE Solutions Evaporative Purge Solenoid Valve

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$148.61
Dorman’s Vapor Canister Purge Valve restores on- board diagnosis of the EVAP system. Plus, its high quality metal and plastic construction keeps the system working properly, year after year.

Product Features:
  • Mounting hardware included (where applicable)
  • O-ring included (where applicable)
  • Designed for enduring resistance to harsh road and weather conditions
  • Direct replacement for a proper fit every time
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Santech – Fuel Pressure Sensor (Part No.C3001935046SII)

Fuel Pressure Sensor

from

$67.87
Fuel Pressure Sensor

ACDelco – Fuel Pump Relay (Part No.P2037620205ACD)

Fuel Pump Relay

from

$36.27
Fuel Pump Relay

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

Fuel Tank Cleaning Kit

from

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

Product Features:
  • Helps avoid premature fuel pump failure
  • Lint free towel included
  • Low suds formulation
  • Removes harmful contaminants from the fuel tank
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Carquest Premium – Vapor Canister (Part No.CPG1191)

Vapor Canister

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$152.99
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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Dorman – Fuel Filler Neck Grommet (Part No.577-501)

Fuel Filler Neck Grommet

from

$16.99
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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Carquest Premium – Exhaust Gas Recirculation (EGR) Valve Control Solenoid (Part No.EGC1015)

Exhaust Gas Recirculation (EGR) Valve Control Solenoid

from

$40.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest Premium – Fuel Tank Lock Ring (Part No.LO1582930)

Fuel Tank Lock Ring

from

$9.99
Carquest Premium fuel pump tank seals are built by Carter Fuel Systems and Agility Auto Parts, industry leaders in high-quality fuel system components. Carquest Premium offers a complete line of fuel pump tank seals covering a wide variety of North American vehicle applications. Carquest Premium fuel pump tank seals are engineered to meet or exceed all OEM specifications.

Product Features:
  • Engineered to meet or exceed all OEM specifications.
  • Precision stamped and are treated with a rust proof finish to ensure durability and strength
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Motorcraft – Idle Control Valve Gasket (Part No.C4063195642MTR)

Idle Control Valve Gasket

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$6.65
With today’s complex automotive engines, it’s even more critical to have the right sealing components for accurate pressure relief and gasket sealing.

Product Features:
  • Wide range available in precut sizes
  • Available plain or backed with adhesive
  • Bulk gasket material available for custom cutting by hand
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Carquest Premium – Fuel Injector Seal Kit (Part No.AS009)

Fuel Injector Seal Kit

from

$2.99
CARQUEST fuel injector seal kits include the necessary O-rings and seals to properly reseal the injector, which is a recommended practice any time the injector is removed. Each kit services one injector and includes hard to find or previously dealer-only components.

Product Features:
  • Premium OE quality materials
  • Services one injector
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Spectra Premium – Fuel Filler Neck (Part No.FN1019)

Fuel Filler Neck

from

$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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Carquest Premium – Ambient Air Temperature Sensor Connector (Part No.PTA1706)

Ambient Air Temperature Sensor Connector

from

$35.99
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.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
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Carquest Premium – Secondary Air Injection Pipe (Part No.EGP1143)

Secondary Air Injection Pipe

from

$96.99
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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Mahle – Fuel Injector O-Ring (Part No.C10132590067MAH)

Fuel Injector O-Ring

from

$8.61
Fuel Injector O-Ring

Carquest – Fuel Injection Pressure Regulator (Part No.22856)

Fuel Injection Pressure Regulator

from

$62.99
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
  • Application-specific to ensure the proper fit and form
  • Precision-engineered pressure regulators for proper fuel delivery and engine performance
  • As a global manufacturer, we have complete control of the manufacturing process, from components to finished product?
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Delphi – Fuel Pump Hanger Assembly: With Float Arm, Bolts, Washers, Retainer Clips (Part No.HP10199)

Fuel Pump Hanger Assembly: With Float Arm, Bolts, Washers, Retainer Clips

from

$423.99
100 years of OE experience, supplier to the world’s top automakers, OE Heritage and knowledge built into every aftermarket part, comprehensive portfolio for a wide range of vehicles and model years.

Product Features:
  • Delphi is a global OE manufacturer and all fuel pumps are built to Delphi’s OE standards
  • 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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BSE Original – Mass Air Flow (MAF) Sensor (Part No.20864M)

Mass Air Flow (MAF) Sensor

from

$131.99
Blue Streak Electronics is the leader in remanufactured electronics since 1987 and a name synonymous with OE performance. Blue Streak Electronics provides the highest quality, most comprehensive line of Engine, Transmission, Body, Powertrain control modules, Mass Air Flow Sensors, Diagnostic tools and Flash Programming solutions.

Product Features:
  • BSE mass air flow sensors are 100% tested to perform like new. OEM designs are analyzed, and design upgrades are implemented when necessary to provide improved durability over the OEM design.
  • Sensors are validated for extended run, extreme hot and cold, over-voltage, over-current, and shock and vibration.
  • Guaranteed to match vehicle requirements for performance, drivability, fuel economy and emissions.
  • All parts are THE ORIGINAL parts your car was built with. All parts are validated for on car fit, form, and function.
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Carquest Premium – Air Charge Temperature Sensor (Part No.WTA1064)

Air Charge Temperature Sensor

from

$27.99
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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Bosch – Fuel Pump Strainer (Part No.68012)

Fuel Pump Strainer

from

$21.99
Our team of Bosch Engineers brings the benefits of premium fuel pumps to the Automotive Aftermarket. Bosch fuel pumps are produced in the same production lines and are built then tested to the same exacting quality standards as Bosch OE fuel pumps to ensu

Product Features:
  • Recommended repair accessories designed to OEM standards to improve the function of the vehicle and uphold product warranty
  • Multilayered filter media with 99% efficiency
  • Robust aluminum-, plastic-, or surface-treated steel filter housing designed to withstand high pressure thus offering a longer fuel filter service life
  • High micron rating comparable to OE
  • Always recommend replacing fuel strainer when replacing a fuel pump to ensure long and reliable service life
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Motorcraft – Original Equipment (O.E.) Sensor Assembly (Part No.DPFE-15)

Original Equipment (O.E.) Sensor Assembly

from

$88.99
The only parts recommended by Ford Motor Company for Ford, Lincoln, and Mercury vehicles.

Product Features:
  • DPFE (Differential Pressure Feedback Electronic) Sensors are an integral part of the EGR (Exhaust Gas Recirculation) System.
  • DPFE Sensors provide information to the Power-train Control Module (PCM) telling it how much exhaust gas is flowing through the system.
  • The PCM uses this information to control the EGR Valve and other factors to optimize engine performance and emissions performance.
  • Motorcraft DPFE Sensors meet stringent Ford specifications to help ensure optimum performance and durability.
  • Designed for long service life under harsh under-hood conditions.
  • Designed and calibrated as an integral part of the overall emissions system.
  • Works in harmony with other components to help provide optimum drivability, performance and fuel economy.
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Carquest – Fuel Tank Straps (Includes 2 Straps) (Part No.578-127)

Fuel Tank Straps (Includes 2 Straps)

from

$40.99
Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium fuel tank straps 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 expertise
  • Direct fit ensures safe, secure fuel tank installation
  • Product individually packaged and labeled to help reduce product damage prior to installation
  • Industry leading coverage on straps for plastic tanks
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DENSO – First Time Fit Oxygen Sensor (Part No.C5010137203ND)

First Time Fit Oxygen Sensor

from

$49.71
Denso First Time Fit oxygen sensors are constructed of the highest quality materials available. High-quality stainless steel, porous polytetrafluoroethylene (PTFE), fluorine rubber, aluminum oxide, high-grade platinum and ceramics are used in each DENSO sensor.

Product Features:
  • SUPERIOR DESIGN – Maximizes engine performance and fuel efficiency while reducing harmful emissions.
  • DOUBLE-PROTECTION COVER – Maintains proper unit temperature for quicker response times and protects the ceramic element against silicone and lead poisoning.
  • ALUMINUM-OXIDE TRAP LAYER – Keeps silicone and lead outside the ceramic element through DENSO’s exclusive design, preventing damage to the platinum electrode.
  • STAINLESS STEEL HOUSING – Resists corrosion and contamination with a rugged, watertight body.
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Motorcraft – Wire Assembly (Part No.WPT-322)

Wire Assembly

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$69.99
Wire Assembly

NTK – Switching Oxygen Sensor: 4 Wire, 15.5" Long, Heated, Direct Fit (Part No.22045)

Switching Oxygen Sensor: 4 Wire, 15.5" Long, Heated, Direct Fit

from

$44.99
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.

Product Features:
  • OEM QUALITY: NTK 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, NTK Oxygen Sensors offer superior OE fit, form, function
  • OE TECHNOLOGY: Upgraded to the latest OE technologies, NTK 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: NTK 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
  • NTK ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability
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2003 Mercury Grand Marquis Fuel and Emissions Systems

You count on your 2003 Mercury Grand Marquis to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Fuel and Emissions Systems. With 93 Fuel and Emissions Systems ranging in price from $0.99 to $409.99, you’re sure to find everything you need for your 2003 Mercury Grand Marquis.

Brands matter. If you want to shop a specific Fuel and Emissions Systems brand, we stock 19 different brands like Felpro, Motorcraft, and NTK. 2003 Mercury Grand Marquis Fuel and Emissions Systems start as low as $0.99!

One of the best ways to find top quality OEM or aftermarket Fuel and Emissions Systems is by asking professionals. Short of that, you can shop with confidence thanks to our 1,641 extensive product reviews on 2003 Mercury Grand Marquis Fuel and Emissions Systems. Some of the top-rated Fuel and Emissions Systems products we carry are Fuel Cap: 10832, Round, Direct Fit, Provides Tight Seal, 1 Pack with 4.0 stars and Switching Oxygen Sensor: 4 Wire, 15.5" Long, Heated, Direct Fit with 4.7 stars.

Did we mention you can order your Fuel and Emissions Systems from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Fuel and Emissions Systems inventory for your 2003 Mercury Grand Marquis below to get started!

Top-Rated Fuel and Emissions Systems Brands For Your 2003 Mercury Grand Marquis

Trusted Fuel and Emissions Systems OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2003 Mercury Grand Marquis running right for years to come. In our inventory you’ll find brands like Felpro, Motorcraft, NTK, and even more.

Popular MAHLE Original Fuel and Emissions Systems

You’ll find popular MAHLE Original brand products across Idle Air Control Parts. All are waiting to get your 2003 Mercury Grand Marquis back on the road. Some of the top-rated MAHLE Original products in these categories are:
Gasket
from $3.49
(3)
Gasket
Fuel Injection Idle Air Control Valve Gaskets

Top-Rated Bosch Fuel and Emissions Systems


If Bosch are what you’re looking for, our inventory holds plenty. We stock Bosch brand Fuel and Emissions Systems for your 2003 Mercury Grand Marquis, and some of our most reviewed Bosch parts include:

FAQs for 2003 Mercury Grand Marquis Fuel and Emissions Systems

What are the most purchased Fuel and Emissions Systems for the 2003 Mercury Grand Marquis?

Out of 93 Fuel and Emissions Systems for the 2003 Mercury Grand Marquis, the most popular in our inventory are:
Fuel Injector O-Ring Kit
from $7.49
(109)
Fuel Injector O-Ring Kit
Fuel Injector O-Ring Kits
O2 Sensor
from $71.99
(1)
O2 Sensor
Oxygen Sensors

What are the top-rated 2003 Mercury Grand Marquis Fuel and Emissions Systems?

Top-rated Fuel and Emissions Systems for your 2003 Mercury Grand Marquis based on customer reviews/ratings are:
Locking Fuel Cap: 10502, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack
from $33.49
(34)
Locking Fuel Cap: 10502, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack
“Fit fine. Working good so far. Have a blessed day.”