Subaru Legacy Fuel and Emissions Systems

Essential Subaru Legacy Fuel and Emissions Systems

Carquest Premium – Air Charge Temperature Sensor (Part No.ECA1144)

Air Charge Temperature Sensor

from

$76.99
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 Tank Strap (Part No.578-529)

Fuel Tank Strap

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$138.99
Recommended for replacement whenever the fuel tank is replaced or serviced, this strap is a direct replacement for the original. Manufactured from durable materials to withstand harsh road and weather conditions.

Product Features:
  • Direct replacement – this fuel tank strap matches the fit, function and performance of the original part
  • Ideal solution – recommended for replacement when the fuel tank is serviced or replaced
  • Durable construction – manufactured from quality materials for superior service and reliability
  • Trustworthy design – backed by 100 years of automotive aftermarket experience
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Ishino Stone – Fuel Injector O-Ring (Part No.C1012251370ISH)

Fuel Injector O-Ring

from

$1.91
Fuel Injector O-Ring

Felpro – EGR/Exhaust Air Supply Gasket (Part No.72780)

EGR/Exhaust Air Supply Gasket

from

$21.49
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 for the sealing repair environment
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
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Carquest Premium – Fuel Tank Pressure Sensor (Part No.ECA1511)

Fuel Tank Pressure Sensor

from

$83.99
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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Delphi – Fuel Tank Cleaning Kit (Part No.FC01)

Fuel Tank Cleaning Kit

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$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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Motorad – Tethered Gas Cap: Non-Locking, Original Equipment Manufacturer, Reduces Air Pollution, 1 Pack (Part No.MGC817T)

Tethered Gas Cap: Non-Locking, Original Equipment Manufacturer, Reduces Air Pollution, 1 Pack

from

$23.99
Experience uncompromising quality and emissions compliance with these tethered fuel caps. Manufactured with top-tier materials and rigorous production and safety standards adhering to Original Equipment Manufacturer guidelines. Designed meticulously to meet both state and federal emissions requirements, it ensures environmental responsibility. With its specifically engineered pressure and vacuum relief valves, fuel evaporation becomes a thing of the past. Bid farewell to the risk of losing up to 30 gallons of precious gasoline over a year due to a leaking fuel cap. Trust in our superior construction to safeguard your fuel and contribute to a greener future.
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NTK – Wideband Oxygen Sensor: Air-Fuel Ratio 4 Wire, 19.8" Long, Heated, Direct Fit (Part No.24831)

Wideband Oxygen Sensor: Air-Fuel Ratio 4 Wire, 19.8" Long, Heated, Direct Fit

from

$190.99
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. While conventional switching oxygen sensors only switch rich or lean, wideband oxygen (or Air-Fuel Ratio) sensors produce a linear output signal that allows the ECU determine exactly how rich or lean an engine is running and make continuous and precise adjustments of the air-fuel mixture to stay closest to stoichiometric, providing the best possible combustion and fewest emissions. A ceramics company at our core, NTK uses state-of-the art technology enabling complete control of the ceramics used in our wideband 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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Carquest Premium – Remanufactured Fuel Injector (Part No.A218-1104)

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 – Fuel Injector Connector (Part No.PT2318)

Fuel Injector Connector

from

$4.29
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
  • All electrical connectors are 100% tested for proper mechanical and electrical fit, form and function
  • Offering thousands of high-quality pigtails & sockets for nearly every electrical job
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Spectra Premium – Fuel Filler Neck (Part No.FN664)

Fuel Filler Neck

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$219.99
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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Dorman – Exhaust Gas Recirculation Modulator (Part No.911-609)

Exhaust Gas Recirculation Modulator

from

$47.99
This EGR vacuum modulator is designed to match the fit and function of the original modulator on specified applications, and is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this EGR transducer is designed to match the fit and function of the original modulator on specified application
  • Restores functionality – reliable replacement for an original part that 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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DENSO – First Time Fit Electric Fuel Pump (Part No.E3000334268ND)

First Time Fit Electric Fuel Pump

from

$158.70
The Denso Electric Fuel Pump is built to meet the stringent requirements of carmakers for high output, extended reliability and reduced noise.

Product Features:
  • OE-Equivalent and direct fit for easy installation.
  • OE connections and fittings.
  • The high output turbine delivers fuel with minimal pressure pulsation for quieter operation.
  • Ultra-high balanced armature to minimize noise and vibration.
  • High pressure check valve provides superior hot fuel handling characteristics.
  • The brushes are designed for durability, efficiency, and low-resistance operation.
  • High quality relief valve to protect the fuel delivery system.
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ACDelco – Fuel Injector Fuel Feed and Return Pipe O-Ring Kit with Seals with 2 O-Rings (Part No.217-3414)

Fuel Injector Fuel Feed and Return Pipe O-Ring Kit with Seals with 2 O-Rings

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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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Cardone – Mass Air Flow Sensor (Part No.74-50040)

Mass Air Flow Sensor

from

$156.99
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%.
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Carquest Premium – Fuel Injection Idle Air Control Valve Gasket (Part No.ABA1166)

Fuel Injection Idle Air Control Valve Gasket

from

$9.99
Fuel Injection Idle Air Control Valve Gasket

Carquest Premium – Exhaust Gas Recirculation (EGR) Valve Motor Connector (Part No.PTA1869)

Exhaust Gas Recirculation (EGR) Valve Motor Connector

from

$64.99
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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Felpro – EGR/EXHAUST AIR SUPPLY GASKET (Part No.71409)

EGR/EXHAUST AIR SUPPLY GASKET

from

$9.79
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 for the sealing repair environment
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
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Carquest Premium – Vapor Canister Purge Solenoid (Part No.CPC2508)

Vapor Canister Purge Solenoid

from

$71.99
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 – Vapor Canister Vent Solenoid (Part No.CPC1123)

Vapor Canister Vent Solenoid

from

$94.99
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 – Idle Air Control Valve (Part No.AEC1088)

Idle Air Control Valve

from

$248.99
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 – Air Mass Meter Intake Boot (Part No.B3132337945DOR)

Air Mass Meter Intake Boot

from

$46.95
Return your air intake system to proper functioning with Dorman’s Air Intake Hose. Constructed of high-quality rubber, the hose resists the drying and cracking that commonly cause check engine lights and drivability issues.

Product Features:
  • Direct replacement for a proper fit every time
  • Designed to accommodate all necessary PCV and emission fittings
  • Hose slides on easily for trouble-free installation
  • Rigorous quality control measures have been undertaken to ensure that this part conforms to product standards
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Felpro – Exhaust Gas Recirculation (EGR) Valve Gasket (Part No.71218)

Exhaust Gas Recirculation (EGR) Valve Gasket

from

$3.49
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 for the sealing repair environment
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
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DENSO – Manifold Absolute Pressure Sensor (Part No.198-0005)

Manifold Absolute Pressure Sensor

from

$293.99
DENSO’s MAP sensors offer leading edge sensing technology which helps controls fuel injection more precisely. They are compact lightweight and designed with fewer connections improving performance and reliability. DENSO’s MAP sensors have high detection accuracy which reduces emissions.

Product Features:
  • OE technology adapted for the aftermarket
  • Reduces emissions, increased performance
  • Delivers the highest reliability and detection accuracy
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Carquest Premium – Fuel Cap Tester Adapter (Part No.12422)

Fuel Cap Tester Adapter

from

$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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Helping You Find the Right Fuel and Emissions Systems for Your Subaru Legacy

You love your Legacy. So we’ve made it easier than ever to help you find Subaru Legacy Fuel and Emissions Systems in our online catalog. Our inventory holds 325 aftermarket and OEM Fuel and Emissions Systems for your Subaru Legacy, ranging from $1.86 to $1,201.99.

We offer parts from 28 brands trusted to make quality Fuel and Emissions Systems for your Subaru Legacy. Before you buy, take some time to read through customer reviews. We currently have 87,251 reviews of Subaru Legacy Fuel and Emissions Systems from previous customers. Some of the top rated parts include Oxygen Sensor: Downstream, 4 Wire, 21.26" Long, Heated, Exact Fit with 4.5 stars and Oxygen Sensor: 4 Wire, 24.02" Long, Heated, Universal with 3.3 stars.

Find your Legacy Fuel and Emissions Systems here, order online, and have your order shipped directly to your home. Prefer to have an in-person look at your Subaru Legacy part to confirm it’s just right? You can find your nearest Advance Auto Parts store and confirm they have the part in stock before heading over.

Top Fuel and Emissions Systems Brands for Your Subaru Legacy

Our inventory holds Fuel and Emissions Systems for your Subaru Legacy from 28 trusted brands. You’ll find OEM and aftermarket parts from brands like Carquest Premium, Felpro, and Bosch, all of which can keep that Subaru happy.
We have Spectra Premium parts available for your Subaru Legacy in categories like Fuel Tanks. Some of the top-rated Spectra Premium parts in these categories are:
Fuel Filler Neck
from $137.99
(1)
Fuel Filler Neck
Fuel Tank Filler Necks
Fuel Filler Neck
from $219.99
(2)
Fuel Filler Neck
Fuel Tank Filler Necks

Top-Rated Carquest Premium Fuel and Emissions Systems

Leading Carquest Premium Fuel and Emissions Systems

We carry Carquest Premium brand parts for your Subaru Legacy across several catalog categories, including Gas Caps. Some of our most reviewed Carquest Premium parts include:

FAQs for Subaru Legacy Fuel and Emissions Systems

What are the most purchased Fuel and Emissions Systems for the Subaru Legacy?

Out of 325 Fuel and Emissions Systems for the Subaru Legacy, 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
Fuel Cap
from $17.79
(40)
Fuel Cap
Gas Caps

What are the top-rated Subaru Legacy Fuel and Emissions Systems?

Top-rated Fuel and Emissions Systems for your Subaru Legacy based on customer reviews/ratings are:
Oxygen Sensor: 4 Wire, 24.02" Long, Heated, Universal
from $77.99
(87)
Oxygen Sensor: 4 Wire, 24.02" Long, Heated, Universal
“Great! A little larger which made it a little more difficult to install with my O2 sensor socket so make sure there is plenty of clearance!”
Gas Cap: Twist On, Reduces Air Pollution, 1 Pack
from $15.79
(63)
Gas Cap: Twist On, Reduces Air Pollution, 1 Pack
“All was good”