2012 Scion iQ Fuel and Emissions Systems
Find Your Specific 2012 Scion iQ Fuel and Emissions Systems
Below you will find various in-demand Scion Fuel and Emissions Systems, components and accessories for your 2012 iQ. Advance Auto Parts has popular iQ parts like Gas Caps, Oxygen Sensors, Air Flow Sensors and more. You’ll also find aftermarket and OEM Fuel and Emissions Systems for other iQ model years including
2013,
2014,
2015 and more. Select a category of 2012 Scion iQ Fuel and Emissions Systems below and start saving instantly.
Popular 2012 Scion iQ Fuel and Emissions Systems Categories
Essential Fuel and Emissions Systems for 2012 Scion iQs
Carquest Premium – Vapor Canister Purge Solenoid: Includes Mounting Hardware (Part No.CPC1511)
from
$61.99
Maximize your vehicle’s efficiency and emissions control with Carquest Vapor Canister Purge Solenoids. Engineered for precision, these solenoids seamlessly regulate the flow of fuel vapors from the Vapor Canister to the engine for cleaner combustion, reducing harmful emissions. Built to meet and/or exceed OEM standards, Carquest Purge Solenoids offer reliable functionality, long-lasting durability, and easy installation.
Product Features:
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Product Features:
- Enhances overall engine performance by providing proper vapor flow to maintain correct air-fuel mixture.
- Helps reduce harmful emissions and ensures compliance with environmental regulations by controlling the release of fuel vapors into the engine
- Ensures precise operation with electromagnetic principles to control the flow of fuel vapors from the carbon canister to the engine
- Manufactured from high quality engineered materials, resistant to fuel vapors and extreme temperatures, ensuring long lasting performance
- Meets or exceeds all OEM specifications
DENSO – Wideband Oxygen Sensor: Upstream, 4 Wire, 14.76" Long, Heated, Exact Fit (Part No.234-9112)
from
$235.99
DENSO Air/Fuel Ratio 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.; DENSO gives you the right part and the right fit¿ the first time.
Product Features:
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Product Features:
- Specifically designed to meet the increasing demands of today’s engines
- 100 percent checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
- Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
- Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
- Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination
Bosch – Oxygen Sensor: 4 Wire, 24.92" Long, Heated, Universal (Part No.15733)
from
$92.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
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Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Includes Smart Link Connector, no soldering required
- No special tools required for installation
- Seared protection tube due to 100% functional quality test
- Performance meets or exceeds OE specifications
Bosch – Oxygen Sensor: 4 Wire, 10.63" Long, Heated, Exact Fit (Part No.13720)
from
$75.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
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Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Direct Fit includes OE Connector for easy installation
- Performance meets or exceeds OE specifications
- True Direct-fit OE connectors and harness
Bosch – Wideband Oxygen Sensor: 4 Wire, 14.76" Long, Heated, Exact Fit (Part No.18071)
from
$294.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
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Product Features:
- Advanced Wideband sensing element for exact air/fuel measurement
- Robust sensor design increases sensor longevity
- Seared protection tube due to 100% functional quality test
- True Direct-fit
- Pre-coated threads with anti-seize compound right out of the box
Delphi – Fuel Injection Pressure Regulator (Part No.FP10529)
from
$133.99
Precision is key for the fuel pressure regulator on any vehicle. At Delphi, we use OE engineering to test our regulators and fuel technologies to ensure the utmost performance and durability. Our Nitrile¿ diaphragms are resilient against high-ethanol fuels, and we utilize two designs to help meet emissions standards while covering a wide array of domestic vehicles. With over 30 OE-proprietary innovations and 150 patents in fuel technologies, Delphi is regarded as a market leader in North American fuel management. Visit our Resource Center for helpful tips and tricks on fuel pumps technologies and more: https://www.delphiautoparts.com/usa/en-US/resource-center.
Product Features:
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Product Features:
- Precisely manufactured internal valves, diaphragms and springs means excellent performance under all engine operating conditions
- Quiet operation, no audible regulator noise
- Robust diaphragm materials means longer life, improved durability and compatibility with a wide range of fuels
- Consistent and predictable fuel pressure throughout system range of control provides great drivability
Wells Vehicle Electronics – Fuel Injection Pressure Regulator (Part No.5G1488)
from
$137.99
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 – Fuel Cap Tester Adapter: (Part No.12410)
from
$17.79
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.
Product Features:
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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
Carquest Premium – Fuel Cap Tester Adapter: (Part No.12427)
from
$34.99
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.
Product Features:
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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
Carquest Premium – Remanufactured Fuel Injector (Part No.A212-4144)
from
$109.99
CARQUEST’s line of remanufactured OEM fuel injectors are remanufactured using a proven 15 step process at a state-of-the-art remanufacturing facility in the U.S.A. Each injector is 100% tested under multiple operating conditions to ensure each injector meets or exceeds OE specifications for flow rate, spray pattern, coil resistance, form, fit and function. Each injector includes new external seals and o-rings.
Product Features:
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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.
Delphi – Fuel Tank Cleaning Kit (Part No.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.
Product Features:
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Product Features:
- Helps avoid premature fuel pump failure
- Lint free towel included
- Low suds formulation
- Removes harmful contaminants from the fuel tank
Carquest – Fuel Injector Seal Kit (Part No.274531)
from
$8.49
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.
Product Features:
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Product Features:
- Designed to OE standards for ease of installation
- State-of-the-art designs that meet or exceed OE specifications
- Top-of-the-line quality and performance
- With industry leading expertise, when original equipment fails our products are designed to fix the inherent failure issues
- BWD is a global manufacturer of original equipment and aftermarket fuel injection products, complete quality control is maintained through the manufacturing process from componentry to finished product
Carquest Premium – Fuel Injector Seal Kit (Part No.AS011)
from
$8.99
CARQUEST fuel injector seal kits include the necessary O-rings and seals to properly reseal the injector, which is a recommended practice any time the injector is removed. Each kit services one injector and includes hard to find or previously dealer-only components.
Product Features:
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Product Features:
- Premium OE quality materials
- Services one injector
Delphi – Mass Air Flow Sensor (Part No.AF10347)
from
$136.99
Every single Delphi mass air flow (MAF) sensor that we manufacture – whether with or without the housing – is built with calibrated all-new components and is never remanufactured. Our mass air flow sensors are designed and tested to meet or exceed OE requirements, and engineered for a perfect fit in more than 180 million vehicles on the road today in North America – including makes from Ford, Toyota, Nissan, Volkswagen, Hyundai, BMW, Honda, GM, Mazda, Subaru, Acura and more.
Product Features:
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Product Features:
- Delphi mass air flow sensors are the global benchmark for accuracy and signal noise
- Delphi mass air flow sensors feature high quality sensing elements for outstanding performance over a wide range of ambient temperatures
- Delphi is a manufacturer of OE mass air flow sensors since their first use over 30 years ago
- All parts are calibrated and tested to match the OE part
- Probe solution offered wherever possible to reduce repair time by eliminating the need to replace the flow tube.
- Delphi OE technology validated to match the vehicle applications
Carquest Premium – Mass Air Flow Sensor (MAF) – 100% NEW (Part No.MQ6225)
from
$106.99
Advance Auto Parts is proud to carry all new mass air flow sensors that use high-quality components with the highest quality standards.
Product Features:
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Product Features:
- CARQUEST MAF use all new high-quality components at the highest quality standards.
- Manufactured with new and advanced technology to perform, fit and function at OE specifications.
- All new product that is tested with OEM equipment to OEM standards
- Outperforms competition when tested in extreme environmental conditions
DENSO – Mass Air Flow Sensor (Part No.197-6160)
from
$172.99
DENSO’s innovated designs reduces the size and weight which allows for easy installation. Glass film coated sensing elements reduces contamination exposure and improves reliability.
Product Features:
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Product Features:
- OE technology adapted for the aftermarket
- Reduces emissions, increased performance
- Delivers the highest reliability and detection accuracy
Carquest Premium – Locking Fuel Tank Cap (Part No.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.
Product Features:
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Product Features:
- Protects your fuel from theft and vandalism
- Protects your fuel from theft and vandalism
- Passes all state and federal emissions tests
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
Carquest Premium – Keyed Alike Locking Fuel Cap (Part No.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.
Product Features:
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Product Features:
- Passes all state and federal emissions tests
- Independently tested for emission control
- Independently tested for emission control
- Protects your fuel from theft and vandalism
- Reduces air pollution with proper sealing and venting
- Manufactured from durable, long-life materials
Carquest Premium – Non-Locking Fuel Tank Cap (Part No.10834)
from
$15.49
Product Features:
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- Reduces air pollution with proper sealing and venting
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
Carquest Premium – Keyed Alike Locking Fuel Cap (Part No.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.
Product Features:
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Product Features:
- Passes all state and federal emissions tests
- Independently tested for emission control
- Independently tested for emission control
- Protects your fuel from theft and vandalism
- Reduces air pollution with proper sealing and venting
- Manufactured from durable, long-life materials
Carquest Premium – Gas Cap: Twist On, Reduces Air Pollution, 1 Pack (Part No.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.
Product Features:
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Product Features:
- Passes all state and federal emissions tests
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
Carquest Premium – Fuel Cap: Round, Direct Fit, Provides Tight Seal, 1 Pack (Part No.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.
Product Features:
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Product Features:
- Passes all state and federal emissions tests
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
Motorad – Non-Locking Tethered Fuel Tank Cap (Part No.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.
Product Features:
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Product Features:
- Come pre-assembled for quick and easy installation.
- Several fastener options to work with any fuel cap compartment configuration
- Fits vehicles orginally equipped with tether
- Reduces air pollution with proper sealing and venting
- Manufactured from durable, long-life materials
Carquest Premium – Locking Fuel Tank Cap (Part No.10591)
from
$23.99
Product Features:
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- Protects your fuel from theft and vandalism
- Protects your fuel from theft and vandalism
- Passes all state and federal emissions tests
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
Carquest Premium – Locking Fuel Cap: Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10504)
from
$21.79
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.
Product Features:
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Product Features:
- Protects your fuel from theft and vandalism
- Passes all state and federal emissions tests
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
Carquest Premium – Locking Fuel Tank Cap (Part No.10507)
from
$22.99
Product Features:
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- Protects your fuel from theft and vandalism
- Protects your fuel from theft and vandalism
- Passes all state and federal emissions tests
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
Carquest Premium – Keyed Alike Locking Fuel Cap (Part No.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.
Product Features:
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Product Features:
- Passes all state and federal emissions tests
- Independently tested for emission control
- Independently tested for emission control
- Protects your fuel from theft and vandalism
- Reduces air pollution with proper sealing and venting
- Manufactured from durable, long-life materials
Carquest Premium – Non-Locking Fuel Tank Cap (Part No.10819)
from
$16.99
Product Features:
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- Passes all state and federal emissions tests
- Passes all state and federal emissions tests
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
Upgrade your 2012 Scion iQ with Top-Quality Fuel and Emissions Systems
When it comes to maintaining or upgrading your 2012 Scion iQ, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Scion or enhancing its overall performance, Fuel and Emissions Systems are key to keeping your iQ functioning at its best. At Advance Auto Parts, we offer a wide selection of 30 Fuel and Emissions Systems for the 2012 Scion iQ, designed to meet your needs without breaking the bank.
From
Gas Cap
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 Scion iQ at great prices.
Our Fuel and Emissions Systems inventory for this model
ranges from just $7.99 to $294.99, with
an average price of $66.40.
Our 30 Fuel and Emissions Systems in stock come from 7 trusted brands, so you’re sure to find the right part for your 2012 Scion iQ 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 Scion iQ, 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 $75.99 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 $8.99, and at an average 4.6 stars rating.
With 560 customer reviews and counting, our 2012 Scion iQ 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 Scion iQ is always ready to roll. We’re committed to providing you with everything you need to keep your iQ in top shape, all in one place.
Start shopping confidently below for your 2012 Scion iQ!
Best-Selling Gas Caps for 2012 Scion iQs
Enhance the driving experience in your Scion with 13 quality Gas Cap components, starting at $7.99.
Carquest Premium – Keyed Alike Locking Fuel Cap (Part No.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.
Product Features:
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Product Features:
- Passes all state and federal emissions tests
- Independently tested for emission control
- Independently tested for emission control
- Protects your fuel from theft and vandalism
- Reduces air pollution with proper sealing and venting
- Manufactured from durable, long-life materials
Carquest Premium – Fuel Cap: Round, Direct Fit, Provides Tight Seal, 1 Pack (Part No.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.
Product Features:
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Product Features:
- Passes all state and federal emissions tests
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
Carquest Premium – Non-Locking Fuel Tank Cap (Part No.10834)
from
$15.49
Product Features:
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- Reduces air pollution with proper sealing and venting
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
Carquest Premium – Gas Cap: Twist On, Reduces Air Pollution, 1 Pack (Part No.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.
Product Features:
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Product Features:
- Passes all state and federal emissions tests
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
Carquest Premium – Locking Fuel Tank Cap (Part No.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.
Product Features:
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Product Features:
- Protects your fuel from theft and vandalism
- Protects your fuel from theft and vandalism
- Passes all state and federal emissions tests
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
Carquest Premium – Non-Locking Fuel Tank Cap (Part No.10819)
from
$16.99
Product Features:
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- Passes all state and federal emissions tests
- Passes all state and federal emissions tests
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
Carquest Premium – Locking Fuel Tank Cap (Part No.10591)
from
$23.99
Product Features:
See More
- Protects your fuel from theft and vandalism
- Protects your fuel from theft and vandalism
- Passes all state and federal emissions tests
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
Carquest Premium – Locking Fuel Cap: Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10504)
from
$21.79
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.
Product Features:
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Product Features:
- Protects your fuel from theft and vandalism
- Passes all state and federal emissions tests
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
Carquest Premium – Locking Fuel Tank Cap (Part No.10507)
from
$22.99
Product Features:
See More
- Protects your fuel from theft and vandalism
- Protects your fuel from theft and vandalism
- Passes all state and federal emissions tests
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
Carquest Premium – Keyed Alike Locking Fuel Cap (Part No.17504)
from
$7.99
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.
Product Features:
See More
Product Features:
- Passes all state and federal emissions tests
- Independently tested for emission control
- Independently tested for emission control
- Protects your fuel from theft and vandalism
- Reduces air pollution with proper sealing and venting
- Manufactured from durable, long-life materials
Motorad – Non-Locking Tethered Fuel Tank Cap (Part No.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.
Product Features:
See More
Product Features:
- Come pre-assembled for quick and easy installation.
- Several fastener options to work with any fuel cap compartment configuration
- Fits vehicles orginally equipped with tether
- Reduces air pollution with proper sealing and venting
- Manufactured from durable, long-life materials
Carquest Premium – Keyed Alike Locking Fuel Cap (Part No.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.
Product Features:
See More
Product Features:
- Passes all state and federal emissions tests
- Independently tested for emission control
- Independently tested for emission control
- Protects your fuel from theft and vandalism
- Reduces air pollution with proper sealing and venting
- Manufactured from durable, long-life materials
Carquest Premium – Keyed Alike Locking Fuel Cap (Part No.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.
Product Features:
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Product Features:
- Passes all state and federal emissions tests
- Independently tested for emission control
- Independently tested for emission control
- Protects your fuel from theft and vandalism
- Reduces air pollution with proper sealing and venting
- Manufactured from durable, long-life materials
Most Popular 2012 Scion iQ Oxygen Sensors
Customize your Scion with 4 Oxygen Sensors products
like Oxygen Sensors, all
priced under $294.99.
DENSO – Oxygen Sensor: Downstream, 4 Wire, 13.78" Long, Heated, Exact Fit (Part No.234-4168)
from
$123.99
DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision built for exact replacement, and a first time fit. This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead poisoning for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit.
Product Features:
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Product Features:
- Specifically designed to meet the increasing demands of today’s engines
- 100 percent checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
- Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
- Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
- Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination
Bosch – Oxygen Sensor: 4 Wire, 10.63" Long, Heated, Exact Fit (Part No.13720)
from
$75.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
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Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Direct Fit includes OE Connector for easy installation
- Performance meets or exceeds OE specifications
- True Direct-fit OE connectors and harness
Bosch – Oxygen Sensor: 4 Wire, 24.92" Long, Heated, Universal (Part No.15733)
from
$92.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
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Product Features:
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Includes Smart Link Connector, no soldering required
- No special tools required for installation
- Seared protection tube due to 100% functional quality test
- Performance meets or exceeds OE specifications
Bosch – Wideband Oxygen Sensor: 4 Wire, 14.76" Long, Heated, Exact Fit (Part No.18071)
from
$294.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
Product Features:
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Product Features:
- Advanced Wideband sensing element for exact air/fuel measurement
- Robust sensor design increases sensor longevity
- Seared protection tube due to 100% functional quality test
- True Direct-fit
- Pre-coated threads with anti-seize compound right out of the box
Top Picks for 2012 Scion iQ Air Flow Sensors
Upgrade Scion iQs with top-quality Air Flow Sensors parts, including 1 OEM and aftermarket selections for your 2012 model.
DENSO – Wideband Oxygen Sensor: Upstream, 4 Wire, 14.76" Long, Heated, Exact Fit (Part No.234-9112)
from
$235.99
DENSO Air/Fuel Ratio 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.; DENSO gives you the right part and the right fit¿ the first time.
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Product Features:
- Specifically designed to meet the increasing demands of today’s engines
- 100 percent checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
- Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
- Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
- Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination
In-Demand Fuel Pumps for 2012 Scion iQs
Select from 2 premium Fuel Pumps parts for your 2012 Scion iQ, with prices ranging from $17.79 to $34.99.
Carquest Premium – Fuel Cap Tester Adapter: (Part No.12427)
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$34.99
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.
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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
Carquest Premium – Fuel Cap Tester Adapter: (Part No.12410)
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$17.79
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.
Product Features:
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Product Features:
- BAR Certified adapters
- Adapter check’s a fuel cap’s ability to hold pressure.
- Adapters meet EPA standards for recommended fleet coverage.
- Check adapter application chart for specific makes and models
Most Sold 2012 Scion iQ Fuel Injectors
Explore our best-selling Scion parts for the 2012 iQ among 8 OEM and aftermarket options starting from $8.49.
Carquest Premium – Mass Air Flow Sensor (MAF) – 100% NEW (Part No.MQ6225)
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$106.99
Advance Auto Parts is proud to carry all new mass air flow sensors that use high-quality components with the highest quality standards.
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Product Features:
- CARQUEST MAF use all new high-quality components at the highest quality standards.
- Manufactured with new and advanced technology to perform, fit and function at OE specifications.
- All new product that is tested with OEM equipment to OEM standards
- Outperforms competition when tested in extreme environmental conditions
Carquest Premium – Fuel Injector Seal Kit (Part No.AS011)
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$8.99
CARQUEST fuel injector seal kits include the necessary O-rings and seals to properly reseal the injector, which is a recommended practice any time the injector is removed. Each kit services one injector and includes hard to find or previously dealer-only components.
Product Features:
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Product Features:
- Premium OE quality materials
- Services one injector
Carquest – Fuel Injector Seal Kit (Part No.274531)
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$8.49
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.
Product Features:
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Product Features:
- Designed to OE standards for ease of installation
- State-of-the-art designs that meet or exceed OE specifications
- Top-of-the-line quality and performance
- With industry leading expertise, when original equipment fails our products are designed to fix the inherent failure issues
- BWD is a global manufacturer of original equipment and aftermarket fuel injection products, complete quality control is maintained through the manufacturing process from componentry to finished product
DENSO – Mass Air Flow Sensor (Part No.197-6160)
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$172.99
DENSO’s innovated 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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Product Features:
- OE technology adapted for the aftermarket
- Reduces emissions, increased performance
- Delivers the highest reliability and detection accuracy
Delphi – Mass Air Flow Sensor (Part No.AF10347)
from
$136.99
Every single Delphi mass air flow (MAF) sensor that we manufacture – whether with or without the housing – is built with calibrated all-new components and is never remanufactured. Our mass air flow sensors are designed and tested to meet or exceed OE requirements, and engineered for a perfect fit in more than 180 million vehicles on the road today in North America – including makes from Ford, Toyota, Nissan, Volkswagen, Hyundai, BMW, Honda, GM, Mazda, Subaru, Acura and more.
Product Features:
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Product Features:
- Delphi mass air flow sensors are the global benchmark for accuracy and signal noise
- Delphi mass air flow sensors feature high quality sensing elements for outstanding performance over a wide range of ambient temperatures
- Delphi is a manufacturer of OE mass air flow sensors since their first use over 30 years ago
- All parts are calibrated and tested to match the OE part
- Probe solution offered wherever possible to reduce repair time by eliminating the need to replace the flow tube.
- Delphi OE technology validated to match the vehicle applications
Wells Vehicle Electronics – Fuel Injection Pressure Regulator (Part No.5G1488)
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$137.99
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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Delphi – Fuel Injection Pressure Regulator (Part No.FP10529)
from
$133.99
Precision is key for the fuel pressure regulator on any vehicle. At Delphi, we use OE engineering to test our regulators and fuel technologies to ensure the utmost performance and durability. Our Nitrile¿ diaphragms are resilient against high-ethanol fuels, and we utilize two designs to help meet emissions standards while covering a wide array of domestic vehicles. With over 30 OE-proprietary innovations and 150 patents in fuel technologies, Delphi is regarded as a market leader in North American fuel management. Visit our Resource Center for helpful tips and tricks on fuel pumps technologies and more: https://www.delphiautoparts.com/usa/en-US/resource-center.
Product Features:
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Product Features:
- Precisely manufactured internal valves, diaphragms and springs means excellent performance under all engine operating conditions
- Quiet operation, no audible regulator noise
- Robust diaphragm materials means longer life, improved durability and compatibility with a wide range of fuels
- Consistent and predictable fuel pressure throughout system range of control provides great drivability
Carquest Premium – Remanufactured Fuel Injector (Part No.A212-4144)
from
$109.99
CARQUEST’s line of remanufactured OEM fuel injectors are remanufactured using a proven 15 step process at a state-of-the-art remanufacturing facility in the U.S.A. Each injector is 100% tested under multiple operating conditions to ensure each injector meets or exceeds OE specifications for flow rate, spray pattern, coil resistance, form, fit and function. Each injector includes new external seals and o-rings.
Product Features:
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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.
Top-Rated Fuel and Emissions Systems Brands For Your 2012 Scion iQ
Shop for the best-rated brands offering Fuel and Emissions Systems and other products for your 2012 Scion iQs. 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 iQ start at just $8.99 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 Scion iQ Fuel and Emissions Systems
When it comes to maintaining or upgrading your 2012 Scion iQ, 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 Scion iQ. 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 $75.99. 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.
Popular DENSO 2012 Scion iQ Fuel and Emissions Systems
DENSO auto parts is one of the highest quality Fuel and Emissions System brands in the market. Any 2012 Scion iQ owner should feel confident when installing genuine DENSO parts in their vehicle. To ensure the best fit and performance for your 2012 iQ, Advance Auto Parts carries a full inventory of 1 DENSO Fuel and Emissions Systems. Plus you will be keeping your Scion in peak condition while saving money because prices on these DENSO Fuel and Emissions Systems range up to $123.99, plus, with more than 6 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.
FAQs for 2012 Scion iQ Fuel and Emissions Systems
Which Fuel and Emissions Systems are best-sellers for 2012 Scion iQs?
Out of 30 Fuel and Emissions Systems that fit 2012 Scion iQs, the following parts are the top sellers:
- Fuel Cap: Round, Direct Fit, Provides Tight Seal, 1 Pack (18481528) – $14.99
- Oxygen Sensor: 4 Wire, 24.92" Long, Heated, Universal (18730541) – $92.99
- Non-Locking Tethered Fuel Tank Cap (12102600) – $24.29
What’s the price range for 2012 Scion iQ Fuel and Emissions Systems?
Fuel and Emissions System prices for the 2012 Scion iQ start at $7.99 and go up to $294.99 for the most premium parts.
What’s the average price of a Fuel and Emissions System for a 2012 Scion iQ?
The average price for Fuel and Emissions Systems for the 2012 Scion iQ is $66.40. 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 Scion iQ model years?
What are the cheapest Fuel and Emissions Systems for my 2012 Scion iQ?
The cheapest 2012 Scion iQ Fuel and Emissions Systems we carry in stock are:
- Keyed Alike Locking Fuel Cap (10069213) – $7.99
- Fuel Injector Seal Kit (20971310) – $8.49
- Fuel Injector Seal Kit (11449791) – $8.99
- Keyed Alike Locking Fuel Cap (10069215) – $10.99
- Keyed Alike Locking Fuel Cap (10069222) – $11.79
What are the top-rated Fuel and Emissions Systems that fit the 2012 Scion iQ?
Out of 560 reviews by customers, our 2012 Scion iQ 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 Scion iQ and their top-rated products:
- Oxygen Sensors
- Oxygen Sensor: 4 Wire, 10.63" Long, Heated, Exact Fit (18730183) – $75.99
- Oxygen Sensor: Downstream, 4 Wire, 13.78" Long, Heated, Exact Fit (20472122) – $123.99
- Oxygen Sensor: 4 Wire, 24.92" Long, Heated, Universal (18730541) – $92.99
- Fuel Injectors
- Oxygen Sensor: 4 Wire, 10.63" Long, Heated, Exact Fit (18730183) – $75.99
- Oxygen Sensor: Downstream, 4 Wire, 13.78" Long, Heated, Exact Fit (20472122) – $123.99
- Oxygen Sensor: 4 Wire, 24.92" Long, Heated, Universal (18730541) – $92.99
What types of Fuel and Emissions Systems do you sell for my 2012 Scion iQ?
As of 11/2/25, these are some of the most in-demand types of Fuel and Emissions Systems for a 2012 Scion iQ:
Can I get help with 2012 Scion iQ 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 Scion Fuel and Emissions Systems and more.
What is your return policy for Scion iQ Fuel and Emissions Systems?
Advance Auto Parts keeps returns simple. For new Scion iQ 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.
