2003 Mercury Mountaineer Fuel and Emissions Systems

Essential 2003 Mercury Mountaineer Fuel and Emissions Systems

Carquest Premium – Fuel Cap Tester Adapter (Part No.12422)

Fuel Cap Tester Adapter

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$39.99
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Product Features:
  • BAR Certified adapters
  • Adapter check’s a fuel cap’s ability to hold pressure.
  • Adapters meet EPA standards for recommended fleet coverage.
  • Check adapter application chart for specific makes and models
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Dorman – Evaporative Emissions Canister Vent Valve (Part No.911-218)

Evaporative Emissions Canister Vent Valve

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$135.99
A malfunctioning vapor canister vent solenoid can cause the engine light to come on. This vapor canister vent solenoid is engineered of quality materials for durability to ensure proper operation of the vehicle’s evaporative emissions system.

Product Features:
  • Direct replacement – this vapor canister vent solenoid fits and performs like original equipment with simple plug-and-play installation
  • Quality construction – manufactured from premium materials for a long service life
  • Excellent value – original equipment function at a lower price
  • Quality tested – has undergone simulation and endurance testing to ensure proper fit and performance
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Carquest Premium – Remanufactured Fuel Injector (Part No.A211-1352)

Remanufactured Fuel Injector

from

$48.49
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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Carquest Premium – Fuel Injector Seal Kit (Part No.AS051)

Fuel Injector Seal Kit

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$8.29
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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Carquest Premium – Fuel Pump Tank Seal (Part No.TS3541875)

Fuel Pump Tank Seal

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$16.99
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.
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KAI – Fuel Send/Hanger Assembly (Part No.FMD010069)

Fuel Send/Hanger Assembly

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$179.99
New Platinum Pro Fuel Hanger Assembly, 4.0L-V6 245 Cid, 5.0L-V8 302 Cid

Product Features:
  • 4.0/5.0 Liter Engines
  • 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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Carquest Premium – Daytime Running Light Relay Connector (Part No.PTC1867)

Daytime Running Light Relay Connector

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$87.99
Daytime Running Light Relay Connector

Carquest Premium – Engine Crankshaft Position Sensor Connector (Part No.PTA1116)

Engine Crankshaft Position Sensor Connector

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$24.99
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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ACDelco – Fuel Pump Relay (Part No.P2037620205ACD)

Fuel Pump Relay

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$36.27
Fuel Pump Relay

Carquest – Fuel Tank Filler Neck (Part No.577-932)

Fuel Tank Filler Neck

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$112.99
Fuel filler neck leaking? This replacement fuel filler neck is precision-engineered and thoroughly tested to match the original filler neck for specific vehicle years, makes and models for a reliable repair.

Product Features:
  • Direct replacement – this fuel filler neck is made to match the original equipment on specific vehicles
  • Durable construction – made of corrosion-resistant materials to reduce future failure potential
  • Regulatory compliant – built to meet emission and inspection standards
  • Trustworthy value – backed by team of engineers and quality control experts in the United States
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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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Dorman – Exhaust Gas Recirculation Tube (Part No.598-129)

Exhaust Gas Recirculation Tube

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$173.99
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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Carquest Premium – Exhaust Gas Recirculation (EGR) Pressure Sensor (Part No.EGC1016)

Exhaust Gas Recirculation (EGR) Pressure Sensor

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$41.99
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 – Ambient Air Temperature Sensor Connector (Part No.PTC2689)

Ambient Air Temperature Sensor Connector

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$58.99
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.
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Dorman – Fuel Injector Adapter Kit (Part No.926-028)

Fuel Injector Adapter Kit

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$39.99
This fuel injector sleeve is a direct replacement for an original equipment part. Made of quality materials, this part has undergone try-on testing to ensure a quality fit and a long service life.

Product Features:
  • Ideal replacement – this fuel injector sleeve is a direct replacement for the original equipment part on specified engines
  • Durable construction – this part is made from quality materials to resist damage from fuel and extreme temperatures
  • Cost-effective solution – offers original equipment quality at competitive price
  • Quality tested – this part has undergone extensive testing to ensure a quality fit and long service life
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Carquest Premium – Exhaust Gas Recirculation (EGR) Pressure Feedback Hose (Part No.EGC2606)

Exhaust Gas Recirculation (EGR) Pressure Feedback Hose

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$25.99
Exhaust Gas Recirculation (EGR) Pressure Feedback Hose

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

Multi-Purpose Harness

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$56.99
Make better electrical repairs and accessory installations with this pigtail connector. Designed for a clean appearance when installed, it features weatherproof terminals and a locking tab for a reliable quick disconnect electrical connection.

Product Features:
  • Professional appearance – this electrical pigtail is designed for a clean, professional look when installed
  • Convenient solution – this pigtail connector allows the circuit to be quickly disconnected for service or occasional use
  • Durable construction – this pigtail connector features weatherproof seals and a locking tab for a reliable connection
  • Versatile component – this connector can be used in a variety of repairs and custom installations
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Hitachi – Idle Control Valve (Part No.C4030175525HIT)

Idle Control Valve

from

$137.90
The Hitachi Idle Control Valve is a high quality Original Equipment replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:
  • Corrosion resistant housing material
  • Premium materials for longer service life
  • Meets or exceeds OEM specifications
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Carquest Premium – Mass Air Flow Sensor Connector (Part No.PTA1213)

Mass Air Flow Sensor Connector

from

$32.99
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 – Fuel Injection Pressure Sensor (Part No.FPC1011)

Fuel Injection Pressure Sensor

from

$89.99
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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Carquest Premium – Fuel Tank Lock Ring LO1582926 (Part No.LO1582926)

Fuel Tank Lock Ring LO1582926

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$15.99
Carquest Premium offers a complete line of fuel tank lock rings covering a wide variety of North American vehicle applications. Carquest Premium fuel tank lock rings are engineered to meet or exceed all OEM specifications. Carquest Premium fuel tank lock rings are precision stamped and are treated with a rust proof finish to ensure durability and strength.

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 – REGULATOR-WINDW (Part No.WPT-359)

REGULATOR-WINDW

from

$63.99
REGULATOR-WINDW

Wells Vehicle Electronics – Fuel Injection Pressure Regulator (Part No.5G1161)

Fuel Injection Pressure Regulator

from

$74.99
WVE is a leading source of advanced vehicle electronics components for replacement applications in the automotive aftermarket and original equipment applications. WVE offers high-technology manufacturing along with innovative solutions and improvements to
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Carquest Premium – Exhaust Gas Recirculation (EGR) Valve Gasket (Part No.EVA1074)

Exhaust Gas Recirculation (EGR) Valve Gasket

from

$14.99
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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BSE Original – Mass Air Flow (MAF) Sensor (Part No.22884M)

Mass Air Flow (MAF) Sensor

from

$91.99
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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Motorcraft – Original Equipment (O.E.) Valve – Exhaust Gas Recirculation (Part No.CX-2102)

Original Equipment (O.E.) Valve - Exhaust Gas Recirculation

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$234.99
The only parts recommended by Ford Motor Company for Ford and Lincoln vehicles. Motorcraft Emissions components are designed and tested to Ford’s rigorous engineering standards. Motorcraft parts fit right the first time for quicker, easier installation.
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Motorcraft – O2 Sensor (Part No.DY-1401)

O2 Sensor

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$71.99
O2 Sensor

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

Fuel Injector O-Ring Kit

from

$8.79
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.
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2003 Mercury Mountaineer Fuel and Emissions Systems

You count on your 2003 Mercury Mountaineer 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 119 Fuel and Emissions Systems ranging in price from $2.29 to $306.99, you’re sure to find everything you need for your 2003 Mercury Mountaineer.

Brands matter. If you want to shop a specific Fuel and Emissions Systems brand, we stock 21 different brands like Bosch, Felpro, and Motorcraft. 2003 Mercury Mountaineer Fuel and Emissions Systems start as low as $2.29!

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 1,525 extensive product reviews on 2003 Mercury Mountaineer 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 EGR/EXHAUST AIR SUPPLY GASKET with 4.8 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 Mountaineer below to get started!

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

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 Mountaineer running right for years to come. In our inventory you’ll find brands like Bosch, Felpro, Motorcraft, and even more.

Popular Dorman Fuel and Emissions Systems

You’ll find popular Dorman brand products across Fuel Lines. All are waiting to get your 2003 Mercury Mountaineer back on the road. Some of the top-rated Dorman products in these categories are:
SPRINGLOCK FUEL LINE CONNECTOR- 11mm x 5/16In. BARBED MALE
from $13.49
(1)
SPRINGLOCK FUEL LINE CONNECTOR- 11mm x 5/16In. BARBED MALE
Fuel Line Connectors

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 Mountaineer, and some of our most reviewed Bosch parts include:

FAQs for 2003 Mercury Mountaineer Fuel and Emissions Systems

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

Out of 119 Fuel and Emissions Systems for the 2003 Mercury Mountaineer, 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 Mountaineer Fuel and Emissions Systems?

Top-rated Fuel and Emissions Systems for your 2003 Mercury Mountaineer based on customer reviews/ratings are:
EGR/EXHAUST AIR SUPPLY GASKET
from $4.49
(39)
EGR/EXHAUST AIR SUPPLY GASKET
“Great product”