2012 Subaru Legacy Fuel and Emissions Systems

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Essential Fuel and Emissions Systems for 2012 Subaru Legacies

Felpro – Felpro Exhaust Gas Recirculation (EGR) Valve Gasket, 71409 (Part No.71409)

Felpro Exhaust Gas Recirculation (EGR) Valve Gasket, 71409

from

$9.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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DENSO – "DENSO Oxygen Sensor: Downstream, 4 Wire, 14.88"" Long, Heated, Exact Fit, 234-4195" (Part No.234-4195)

"DENSO Oxygen Sensor: Downstream, 4 Wire, 14.88"" Long, Heated, Exact Fit, 234-4195"

from

$149.99
DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.
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Carquest Premium – Carquest Fuel Cap Tester Adapter:, 12410 (Part No.12410)

Carquest Fuel Cap Tester Adapter:, 12410

from

$17.79
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.
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Carquest Premium – Carquest Fuel Pump Module Assembly, M2496344 (Part No.M2496344)

Carquest Fuel Pump Module Assembly, M2496344

from

$563.99
CARQUEST fuel pump modules offer OEM or better performance from an Original Equipment Supplier. The latest advancements in fuel delivery technology are built-in to every CARQUEST Fuel Pump to deliver greater reliability.
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Carquest Premium – Carquest Fuel Pump Strainer, FS1521181 (Part No.FS1521181)

Carquest Fuel Pump Strainer, FS1521181

from

$16.99
CARQUEST Premium electric fuel pumps are built 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.
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PowerStop – PowerStop Z17 Evolution Ceramic Brake Pads with Hardware, 17-563 (Part No.17-563)

PowerStop Z17 Evolution Ceramic Brake Pads with Hardware, 17-563

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$50.99
The Z17 Evolution Ceramic Brake Pad and Hardware set is a stock replacement brake pad set for your daily driven vehicle. The ceramic pads’ low-dust formula is validated through on-vehicle 3rd party tests in the USA to keep your wheels looking like new. The pads also feature dual-layer high-temperature rubberized shims that insulate noise for virtually silent braking. If you’re looking to refresh the look and braking performance of your old, worn-out brakes, look no further. Say hello to a smooth, quiet commute with Z17 Evolution Ceramic Brake Pads.
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Hitachi – Hitachi Fuel Injector, FIJ0024 (Part No.FIJ0024)

Hitachi Fuel Injector, FIJ0024

from

$186.99
Hitachi’s Fuel Injectors (FIJs) are designed to optimize fuel economy and performance by providing extraordinary accuracy and application specific spray patterns with quick response times. Hitachi’s high-speed electromagnet and pintle precisely control the flow of fuel. High quality materials ensure that even under the most extreme conditions, Hitachi’s FIJs will not deform or malfunction. Our FIJs are 100% flow tested for ideal performance and are calibrated for each application ensuring your vehicle meets the strict emission standards set by the OE manufacturer. Designed to meet the exact needs of each specific vehicle, Hitachi’s Fuel Injectors are the premium choice. 
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Felpro – Felpro Exhaust Gas Recirculation (EGR) Valve Gasket, ES 73094 (Part No.ES 73094)

Felpro Exhaust Gas Recirculation (EGR) Valve Gasket, ES 73094

from

$23.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Delphi – Delphi Fuel Tank Cleaning Kit, FC01 (Part No.FC01)

Delphi Fuel Tank Cleaning Kit, FC01

from

$12.49
When replacing a fuel pump or module, it’s extremely important to clean the tank. Existing dirt, debris, and contamination stuck in the fuel tank can clog the brand-new strainer. Delphi’s Fuel Tank Cleaning Kit (FC01) and Tool (FC02) can help clean your fuel tank in less than five minutes. The FC01 includes a low-suds solution, cloth, and gloves that works together with the FC02 to help clean those hard to reach places without having to remove the fuel tank. Visit our Resource Center for helpful tips and tricks on fuel pumps, technologies, and more: https://www.delphiautoparts.com/usa/en-US/resource-center.
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Carquest Premium – Carquest Multi-Use Connector, PTA1869 (Part No.PTA1869)

Carquest Multi-Use Connector, PTA1869

from

$64.99
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.
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Felpro – Felpro Fuel Injector O-Ring Kit, ES 73203 (Part No.ES 73203)

Felpro Fuel Injector O-Ring Kit, ES 73203

from

$10.49
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.
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Carquest Premium – Carquest Fuel Injector Connector, PTA1064 (Part No.PTA1064)

Carquest Fuel Injector Connector, PTA1064

from

$4.99
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.
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DENSO – "DENSO Wideband Oxygen Sensor: Upstream, 4 Wire, 7.87"" Long, Heated, Exact Fit, 234-9047" (Part No.234-9047)

"DENSO Wideband Oxygen Sensor: Upstream, 4 Wire, 7.87"" Long, Heated, Exact Fit, 234-9047"

from

$173.99
DENSO Air/Fuel Ratio 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. DENSO gives you the right part and the right fit at the first time.
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DENSO – "DENSO Air-Fuel Ratio Sensor 4 Wire, Direct Fit, Heated, Wire Length: 14.76"", 234-9314" (Part No.234-9314)

"DENSO Air-Fuel Ratio Sensor 4 Wire, Direct Fit, Heated, Wire Length: 14.76"", 234-9314"

from

$259.99
DENSO Air/Fuel Ratio 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. DENSO gives you the right part and the right fit at the first time.
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Carquest Premium – Carquest EGR Valve, EGC2421 (Part No.EGC2421)

Carquest EGR Valve, EGC2421

from

$255.99
Carquest Premium exhaust gas recirculation (EGR) valves are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Our Carquest Premium EGR valves are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium EGR valves undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium EGR valves are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.
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Carquest Premium – Carquest EGR Valve, EGC1451 (Part No.EGC1451)

Carquest EGR Valve, EGC1451

from

$276.99
Carquest Premium exhaust gas recirculation (EGR) valves are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Our Carquest Premium EGR valves are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium EGR valves undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium EGR valves are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.
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Carquest Premium – Carquest Multi-Use Connector, PTA1567 (Part No.PTA1567)

Carquest Multi-Use Connector, PTA1567

from

$78.99
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.
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Hitachi – Hitachi Mass Air Flow Sensor, MAF0096 (Part No.MAF0096)

Hitachi Mass Air Flow Sensor, MAF0096

from

$269.99
Hitachi€™s Air Flow Sensors (MAFs) measure the amount and characteristics of air entering the engine. Hitachi uses precision elements and high-quality components for enhanced durability and accurate air flow measurements. Hitachi MAFs 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 manufacturer. Details such as a contaminant bypass port (when applicable) and protected circuitry providing a durable and reliable product approved by OE manufacturers makes Hitachi€™s air flow sensors the premium choice.
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Delphi – Delphi Mass Air Flow Sensor, AF10345 (Part No.AF10345)

Delphi Mass Air Flow Sensor, AF10345

from

$191.99
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.
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Carquest Premium – Carquest Vapor Canister Purge Solenoid: Includes Mounting Hardware, CPC1214 (Part No.CPC1214)

Carquest Vapor Canister Purge Solenoid: Includes Mounting Hardware, CPC1214

from

$57.99
Maximize your vehicle’s efficiency and emissions control with Carquest Vapor Canister Purge Solenoids. Engineered for precision, these solenoids seamlessly regulate the flow of fuel vapors from the Vapor Canister to the engine for cleaner combustion, reducing harmful emissions. Built to meet and/or exceed OEM standards, Carquest Purge Solenoids offer reliable functionality, long-lasting durability, and easy installation.
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Carquest Premium – Carquest Vapor Canister Purge Solenoid: Includes Mounting Hardware, CPC1618 (Part No.CPC1618)

Carquest Vapor Canister Purge Solenoid: Includes Mounting Hardware, CPC1618

from

$86.99
Maximize your vehicle’s efficiency and emissions control with Carquest Vapor Canister Purge Solenoids. Engineered for precision, these solenoids seamlessly regulate the flow of fuel vapors from the Vapor Canister to the engine for cleaner combustion, reducing harmful emissions. Built to meet and/or exceed OEM standards, Carquest Purge Solenoids offer reliable functionality, long-lasting durability, and easy installation.
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Felpro – Felpro Fuel Injection Plenum Gasket Set, MS 96747 (Part No.MS 96747)

Felpro Fuel Injection Plenum Gasket Set, MS 96747

from

$28.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.
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Victor Reinz – Victor Reinz Fuel Injection Plenum Gasket Set, 15-11038-01 (Part No.15-11038-01)

Victor Reinz Fuel Injection Plenum Gasket Set, 15-11038-01

from

$31.99
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.
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Carquest Premium – Carquest New Map Sensor, ECA2501 (Part No.ECA2501)

Carquest New Map Sensor, ECA2501

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$326.99
CARQUEST MAP sensors are manufactured with critical OEM components to ensure that your engine runs efficiently to reach the best gas mileage on your vehicle.
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Bosch – Bosch Pressure Sensor, 0261230013 (Part No.0261230013)

Bosch Pressure Sensor, 0261230013

from

$76.99
Bosch OE quality pressure sensors for accurate measurements with high durability, fast response time and wide measuring range
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DENSO – DENSO Manifold Absolute Pressure Sensor, 198-0001 (Part No.198-0001)

DENSO Manifold Absolute Pressure Sensor, 198-0001

from

$369.99
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.
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Carquest Premium – Carquest New Map Sensor, ECE1501 (Part No.ECE1501)

Carquest New Map Sensor, ECE1501

from

$363.99
CARQUEST MAP sensors are manufactured with critical OEM components to ensure that your engine runs efficiently to reach the best gas mileage on your vehicle.
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Carquest Premium – Carquest Manifold Absolute Pressure Sensor, ECA2273 (Part No.ECA2273)

Carquest Manifold Absolute Pressure Sensor, ECA2273

from

$303.99
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.
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Upgrade your 2012 Subaru Legacy with Top-Quality Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2012 Subaru Legacy, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Subaru or enhancing its overall performance, Fuel and Emissions Systems are key to keeping your Legacy functioning at its best. At Advance Auto Parts, we offer a wide selection of 68 Fuel and Emissions Systems for the 2012 Subaru Legacy, 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 2012 Subaru Legacy at great prices. Our Fuel and Emissions Systems inventory for this model ranges from just $2.65 to $784.99, with an average price of $85.46. Our 68 Fuel and Emissions Systems in stock come from 10 trusted brands, so you’re sure to find the right part for your 2012 Subaru Legacy 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 2012 Subaru Legacy, we stock popular OEM and aftermarket Fuel and Emissions Systems from top names like Bosch, DENSO, Carquest Premium, and more. Bosch Fuel and Emissions Systems start at just $109.99 and boast an impressive 4.7 stars average rating from customers. DENSO and Carquest Premium also bring quality to the table, with Fuel and Emissions Systems available starting at $9.99, and at an average 4.6 stars rating. With 3,988 customer reviews and counting, our 2012 Subaru Legacy 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 2012 Subaru Legacy is always ready to roll. We’re committed to providing you with everything you need to keep your Legacy in top shape, all in one place. Start shopping confidently below for your 2012 Subaru Legacy!

Best-Selling Fuel Pumps for 2012 Subaru Legacies

Enhance the driving experience in your Subaru with 5 quality Fuel Pump components, starting at $10.99.

Carquest Premium – Carquest Fuel Pump Strainer, FS2510497 (Part No.FS2510497)

Carquest Fuel Pump Strainer, FS2510497

from

$10.99
CARQUEST Premium electric fuel pumps are built 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.
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Delphi – Delphi Fuel Pump Module Assembly: With Float Arm, FG1606 (Part No.FG1606)

Delphi Fuel Pump Module Assembly: With Float Arm, FG1606

from

$784.99
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.
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Carquest Premium – Carquest Fuel Pump Module Assembly, M2542519 (Part No.M2542519)

Carquest Fuel Pump Module Assembly, M2542519

from

$742.99
Carquest Premium fuel pump modules and assemblies are built 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 modules are supplied with the pump strainer and gaskets or seals when required for the application. Carquest Premium fuel pump modules are engineered with superior quality components to provide the longest life and reliable performance.
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Hitachi – Hitachi Electric Fuel Pump, FUP0023 (Part No.FUP0023)

Hitachi Electric Fuel Pump, FUP0023

from

$243.99
Hitachi’s Fuel Pumps (FUPs) are the bloodline of a vehicle’s fuel delivery system, sending a constant supply of pressurized fuel from the tank to the fuel system. Our pumps create and maintain an accurate positive pressure in the fuel lines, pushing fuel to the engine. Using a combination or high strength steel alloy and aluminum, our pumps keep weight at a minimum while increasing reliability. Designed to meet the exact needs of each specific vehicle, Hitachi’s fuel pumps are the premium choice.
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Carquest Premium – Carquest Fuel Cap Tester Adapter:, 12410 (Part No.12410)

Carquest Fuel Cap Tester Adapter:, 12410

from

$17.79
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.
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Most Popular 2012 Subaru Legacy Oxygen Sensors

Customize your Subaru with 10 Oxygen Sensors products like Oxygen Sensors, all priced under $171.99.

NTK – "NTK Switching Oxygen Sensor: 4 Wire, 12.75"" Long, Heated, Direct Fit, 24651" (Part No.24651)

"NTK Switching Oxygen Sensor: 4 Wire, 12.75"" Long, Heated, Direct Fit, 24651"

from

$171.99
NGK is the world’s largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
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Bosch – "Bosch Oxygen Sensor: 4 Wire, 23.43"" Long, Heated, Exact Fit, 15025" (Part No.15025)

"Bosch Oxygen Sensor: 4 Wire, 23.43"" Long, Heated, Exact Fit, 15025"

from

$109.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
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DENSO – "DENSO Oxygen Sensor: Downstream, 4 Wire, 21.26"" Long, Heated, Exact Fit, 234-4732" (Part No.234-4732)

"DENSO Oxygen Sensor: Downstream, 4 Wire, 21.26"" Long, Heated, Exact Fit, 234-4732"

from

$103.99
DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.
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DENSO – "DENSO Oxygen Sensor: Downstream, 4 Wire, 20.87"" Long, Heated, Exact Fit, 234-4445" (Part No.234-4445)

"DENSO Oxygen Sensor: Downstream, 4 Wire, 20.87"" Long, Heated, Exact Fit, 234-4445"

from

$133.99
DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.
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Bosch – "Bosch Oxygen Sensor: 4 Wire, 24.02"" Long, Heated, Universal, 15730" (Part No.15730)

"Bosch Oxygen Sensor: 4 Wire, 24.02"" Long, Heated, Universal, 15730"

from

$89.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
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Bosch – "Bosch Oxygen Sensor: 4 Wire, 25.87"" Long, Heated, Universal, 15741" (Part No.15741)

"Bosch Oxygen Sensor: 4 Wire, 25.87"" Long, Heated, Universal, 15741"

from

$69.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
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DENSO – "DENSO Oxygen Sensor: Downstream, 4 Wire, 12.72"" Long, Heated, Exact Fit, 234-4447" (Part No.234-4447)

"DENSO Oxygen Sensor: Downstream, 4 Wire, 12.72"" Long, Heated, Exact Fit, 234-4447"

from

$119.99
DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.
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Bosch – "Bosch Oxygen Sensor: 4 Wire, 17.52"" Long, Heated, Exact Fit, 15028" (Part No.15028)

"Bosch Oxygen Sensor: 4 Wire, 17.52"" Long, Heated, Exact Fit, 15028"

from

$114.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
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NTK – "NTK Switching Oxygen Sensor: 4 Wire, 27.5"" Long, Heated, Direct Fit, 24642" (Part No.24642)

"NTK Switching Oxygen Sensor: 4 Wire, 27.5"" Long, Heated, Direct Fit, 24642"

from

$129.99
NGK is the world’s largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
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Bosch – "Bosch Oxygen Sensor: 4 Wire, 20.87"" Long, Heated, Exact Fit, 15170" (Part No.15170)

"Bosch Oxygen Sensor: 4 Wire, 20.87"" Long, Heated, Exact Fit, 15170"

from

$125.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
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Top Picks for 2012 Subaru Legacy Fuel Injectors

Upgrade Subaru Legacies with top-quality Fuel Injectors parts, including 18 OEM and aftermarket selections for your 2012 model.

DENSO – DENSO Mass Air Flow Sensor, 197-6130 (Part No.197-6130)

DENSO Mass Air Flow Sensor, 197-6130

from

$179.99
DENSO’s innovate designs reduces the size and weight which allows for easy installation. Glass film coated sensing elements reduces contamination exposure and improves reliability.
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Felpro – Felpro Fuel Injector O-Ring Kit, ES 70599 (Part No.ES 70599)

Felpro Fuel Injector O-Ring Kit, ES 70599

from

$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.
See More

Carquest – Carquest Fuel Injector Connector, PT2318 (Part No.PT2318)

Carquest Fuel Injector Connector, PT2318

from

$4.29
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.
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Carquest Premium – Carquest New Mass Air Flow Sensor – Sensor Only, MQ6398 (Part No.MQ6398)

Carquest New Mass Air Flow Sensor - Sensor Only, MQ6398

from

$93.99
Carquest Premium mass air flow (MAF) sensors are built to meet the original equipment (OE) specifications for each application. Our MAF sensors are built by a manufacturer that meets IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium mass air flow sensors are 100% new and undergo extensive validation testing to ensure long-lasting performance and reliability.
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Carquest Premium – Carquest Remanufactured Multi Port Fuel Injector, A212-3914 (Part No.A212-3914)

Carquest Remanufactured Multi Port Fuel Injector, A212-3914

from

$99.99
The CARQUEST line of remanufactured OEM fuel injectors are remanufactured using a proven 15 step process at a state-of-the-art remanufacturing facility in the USA Injectors are thoroughly tested under multiple operating conditions to ensure each injector meets or exceeds OE specifications for flow rate, spray pattern, coil resistance, form, fit and function.
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Felpro – Felpro Fuel Injector O-Ring Kit, ES 73202 (Part No.ES 73202)

Felpro Fuel Injector O-Ring Kit, ES 73202

from

$7.49
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.
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Carquest Premium – Carquest Remanufactured Multi Port Fuel Injector, A212-3414 (Part No.A212-3414)

Carquest Remanufactured Multi Port Fuel Injector, A212-3414

from

$79.99
The CARQUEST line of remanufactured OEM fuel injectors are remanufactured using a proven 15 step process at a state-of-the-art remanufacturing facility in the USA Injectors are thoroughly tested under multiple operating conditions to ensure each injector meets or exceeds OE specifications for flow rate, spray pattern, coil resistance, form, fit and function.
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Delphi – Delphi Mass Air Flow Sensor, AF10345 (Part No.AF10345)

Delphi Mass Air Flow Sensor, AF10345

from

$191.99
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.
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Carquest Premium – Carquest Remanufactured Multi Port Fuel Injector, A212-3634 (Part No.A212-3634)

Carquest Remanufactured Multi Port Fuel Injector, A212-3634

from

$89.99
The CARQUEST line of remanufactured OEM fuel injectors are remanufactured using a proven 15 step process at a state-of-the-art remanufacturing facility in the USA Injectors are thoroughly tested under multiple operating conditions to ensure each injector meets or exceeds OE specifications for flow rate, spray pattern, coil resistance, form, fit and function.
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Victor Reinz – Victor Reinz Fuel Injector O-Ring Kit, 18-10107-01 (Part No.18-10107-01)

Victor Reinz Fuel Injector O-Ring Kit, 18-10107-01

from

$63.99
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.
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Felpro – Felpro Fuel Injector O-Ring Kit, ES 73059 (Part No.ES 73059)

Felpro Fuel Injector O-Ring Kit, ES 73059

from

$52.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Victor Reinz – Victor Reinz Fuel Injector O-Ring Kit, 18-10077-01 (Part No.18-10077-01)

Victor Reinz Fuel Injector O-Ring Kit, 18-10077-01

from

$25.99
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.
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Felpro – Felpro Fuel Injection Plenum Gasket Set, MS 97165 (Part No.MS 97165)

Felpro Fuel Injection Plenum Gasket Set, MS 97165

from

$23.49
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.
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Felpro – Felpro Fuel Injector O-Ring Kit, ES 73204 (Part No.ES 73204)

Felpro Fuel Injector O-Ring Kit, ES 73204

from

$13.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Victor Reinz – Victor Reinz Fuel Injector O-Ring Kit, 18-10027-01 (Part No.18-10027-01)

Victor Reinz Fuel Injector O-Ring Kit, 18-10027-01

from

$11.49
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.
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Felpro – Felpro Fuel Injector O-Ring Kit, ES 73203 (Part No.ES 73203)

Felpro Fuel Injector O-Ring Kit, ES 73203

from

$10.49
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.
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Felpro – Felpro Fuel Injection Throttle Body Mounting Gasket, 61657 (Part No.61657)

Felpro Fuel Injection Throttle Body Mounting Gasket, 61657

from

$9.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Carquest Premium – Carquest Fuel Injector Connector, PTA1064 (Part No.PTA1064)

Carquest Fuel Injector Connector, PTA1064

from

$4.99
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.
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In-Demand Gas Caps for 2012 Subaru Legacies

Select from 13 premium Gas Caps parts for your 2012 Subaru Legacy, with prices ranging from $9.99 to $31.99.

Carquest Premium – Carquest Keyed Alike Locking Fuel Cap, 17591 (Part No.17591)

Carquest Keyed Alike Locking Fuel Cap, 17591

from

$11.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Fuel Cap: Round, Direct Fit, Provides Tight Seal, 1 Pack, 10837 (Part No.10837)

Carquest Fuel Cap: Round, Direct Fit, Provides Tight Seal, 1 Pack, 10837

from

$14.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Non-Locking Fuel Tank Cap, 10834 (Part No.10834)

Carquest Non-Locking Fuel Tank Cap, 10834

from

$9.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Gas Cap: Twist On, Reduces Air Pollution, 1 Pack, 10817 (Part No.10817)

Carquest Gas Cap: Twist On, Reduces Air Pollution, 1 Pack, 10817

from

$15.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Locking Fuel Tank Cap, 10501 (Part No.10501)

Carquest Locking Fuel Tank Cap, 10501

from

$24.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Non-Locking Fuel Tank Cap, 10819 (Part No.10819)

Carquest Non-Locking Fuel Tank Cap, 10819

from

$16.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Locking Fuel Tank Cap, 10591 (Part No.10591)

Carquest Locking Fuel Tank Cap, 10591

from

$23.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Locking Fuel Cap: Screw On, Direct Fit, Provides Tight Seal, 1 Pack, 10504 (Part No.10504)

Carquest Locking Fuel Cap: Screw On, Direct Fit, Provides Tight Seal, 1 Pack, 10504

from

$23.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Locking Fuel Tank Cap, 10507 (Part No.10507)

Carquest Locking Fuel Tank Cap, 10507

from

$23.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Locking Diesel Fuel Tank Cap, 10501D (Part No.10501D)

Carquest Locking Diesel Fuel Tank Cap, 10501D

from

$31.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Motorad – Motorad Direct Fit Tethered Non-Locking Gas Fuel Tank Cap:, MGC817T (Part No.MGC817T)

Motorad Direct Fit Tethered Non-Locking Gas Fuel Tank Cap:, MGC817T

from

$24.29
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Keyed Alike Locking Fuel Cap, 17507 (Part No.17507)

Carquest Keyed Alike Locking Fuel Cap, 17507

from

$11.79
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Keyed Alike Locking Fuel Cap, 17505 (Part No.17505)

Carquest Keyed Alike Locking Fuel Cap, 17505

from

$10.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Most Sold 2012 Subaru Legacy Fuel Tanks

Explore our best-selling Subaru parts for the 2012 Legacy among 1 OEM and aftermarket options starting from $12.49.

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

Delphi Fuel Tank Cleaning Kit, FC01

from

$12.49
When replacing a fuel pump or module, it’s extremely important to clean the tank. Existing dirt, debris, and contamination stuck in the fuel tank can clog the brand-new strainer. Delphi’s Fuel Tank Cleaning Kit (FC01) and Tool (FC02) can help clean your fuel tank in less than five minutes. The FC01 includes a low-suds solution, cloth, and gloves that works together with the FC02 to help clean those hard to reach places without having to remove the fuel tank. Visit our Resource Center for helpful tips and tricks on fuel pumps, technologies, and more: https://www.delphiautoparts.com/usa/en-US/resource-center.
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Top-Rated Fuel and Emissions Systems Brands For Your 2012 Subaru Legacy

Shop for the best-rated brands offering Fuel and Emissions Systems and other products for your 2012 Subaru Legacies. Below you’ll find some of our best rated Fuel and Emissions Systems from Bosch, DENSO, and Carquest Premium, and more. Fuel and Emissions Systems from these brands that fit a 2012 Legacy start at just $9.99 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 2012 Subaru Legacy Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2012 Subaru Legacy, 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 2012 Subaru Legacy. With over 1 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 $109.99. Plus, with over 1 customer reviews and an average rating of 4.7 stars, you can trust that our Bosch Fuel and Emissions Systems will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
"Bosch Oxygen Sensor: 4 Wire, 23.43"" Long, Heated, Exact Fit, 15025"
from $109.99
(1)
"Bosch Oxygen Sensor: 4 Wire, 23.43"" Long, Heated, Exact Fit, 15025"
“Easy to install and works just like the oem sensor”

Popular DENSO 2012 Subaru Legacy Fuel and Emissions Systems

DENSO auto parts is one of the highest quality Fuel and Emissions System brands in the market. Any 2012 Subaru Legacy owner should feel confident when installing genuine DENSO parts in their vehicle. To ensure the best fit and performance for your 2012 Legacy, Advance Auto Parts carries a full inventory of 3 DENSO Fuel and Emissions Systems. Plus you will be keeping your Subaru in peak condition while saving money because prices on these DENSO Fuel and Emissions Systems range from $103.99 to $179.99, plus, with more than 338 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.
"DENSO Oxygen Sensor: Downstream, 4 Wire, 20.87"" Long, Heated, Exact Fit, 234-4445"
from $133.99
(5)
"DENSO Oxygen Sensor: Downstream, 4 Wire, 20.87"" Long, Heated, Exact Fit, 234-4445"
“used on 2007 subaru outback. working great. check engine light staying off now”
DENSO Mass Air Flow Sensor, 197-6130
from $179.99
(1)
DENSO Mass Air Flow Sensor, 197-6130
“Could not have been easier — one connector and 2 Phillips screws — done! Used the same day delivery service and could not be more pleased!”

FAQs for 2012 Subaru Legacy Fuel and Emissions Systems

Which Fuel and Emissions Systems are best-sellers for 2012 Subaru Legacies?

Out of 68 Fuel and Emissions Systems that fit 2012 Subaru Legacies, the following parts are the top sellers:

What’s the price range for 2012 Subaru Legacy Fuel and Emissions Systems?

Fuel and Emissions System prices for the 2012 Subaru Legacy start at $2.65 and go up to $784.99 for the most premium parts.

What’s the average price of a Fuel and Emissions System for a 2012 Subaru Legacy?

The average price for Fuel and Emissions Systems for the 2012 Subaru Legacy is $85.46. 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 Subaru Legacy model years?

Yes, we currently carry Fuel and Emissions Systems for 34 model years of Subaru Legacies between 1990 and 2025. Fuel and Emissions Systems are bought most frequently for the following model years: 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, and 2015.

What are the cheapest Fuel and Emissions Systems for my 2012 Subaru Legacy?

The cheapest 2012 Subaru Legacy Fuel and Emissions Systems we carry in stock are:

What are the top-rated Fuel and Emissions Systems that fit the 2012 Subaru Legacy?

Out of 3,988 reviews by customers, our 2012 Subaru Legacy Fuel and Emissions Systems have an average customer rating of . These are some of the highest-rated Fuel and Emissions System types for the 2012 Subaru Legacy and their top-rated products:

What types of Fuel and Emissions Systems do you sell for my 2012 Subaru Legacy?

Can I get help with 2012 Subaru Legacy 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 Subaru Fuel and Emissions Systems and more.

What is your return policy for Subaru Legacy Fuel and Emissions Systems?

Advance Auto Parts keeps returns simple. For new Subaru Legacy 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.