1991 Audi Coupe Quattro Fuel and Emissions Systems

Essential Fuel and Emissions Systems for 1991 Audi Coupe Quattros

Bosch – Turbine Electric Fuel Pump (Part No.E3000162965BOS)

Turbine Electric Fuel Pump

from

$199.21
Benchmark quality from the worldwide leader in fuel injection technology. Bosch state-of-the-art turbine fuel pumps offer many advantages when compared to older roller-cell and inner-gear pump designs. These pumps offer near silent operation and improved drivability, the core components of this turbine design significantly reduce wear and deliver a longer service life. Bosch Turbine Fuel Pumps are nearly identical in dimension and appearance to the units they replace for a precise fit every time. Plus, application-specific, illustrated step-by-step instructions are included with all Bosch Turbine Fuel Pumps for safe and easy installation. To prevent hot start problems, Bosch includes a non-return valve that maintains system pressure long after the vehicle has been shut off.

Product Features:
  • OE-Equivalent Direct fit for easy installation.
  • OE connections and fittings.
  • Superior turbine pump design that virtually eliminates fuel pulsation.
  • Precision, spin-balanced armature to reduce noise and vibration.
  • Premium carbon brushes, utilizing advanced materials.
  • Noise suppression coil that eliminates radio frequency interference.
  • Illustrated step-by-step instructions are included.
See More

Vemo – Electric Fuel Pump (Part No.E300049475VMO)

Electric Fuel Pump

from

$173.44
The Vemo Electric Fuel Pump meets or exceeds the OE specifications for fit, durability and performance.

Product Features:
  • OE-Equivalent electric fuel pump.
  • Direct fit for easy installation.
  • OE connections and fittings.
  • Highly efficient turbine design.
  • Designed for quieter operation.
See More

Carquest Premium – Exhaust Gas Recirculation (EGR) Valve Temperature Sensor (Part No.EGA2138)

Exhaust Gas Recirculation (EGR) Valve Temperature Sensor

from

$347.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
See More

Carquest Premium – Exhaust Gas Recirculation (EGR) Valve Gasket (Part No.EVA1107)

Exhaust Gas Recirculation (EGR) Valve Gasket

from

$12.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
See More

Felpro – EGR/EXHAUST AIR SUPPLY GASKET (Part No.70982)

EGR/EXHAUST AIR SUPPLY GASKET

from

$1.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
See More

Cardone – Remanufactured Mass Air Flow Sensor (Part No.74-9595)

Remanufactured Mass Air Flow Sensor

from

$179.99
CARDONE Remanufactured Mass Air Flow Sensors (MAFS) precisely track O.E. output curves and maintain specific tolerances to ensure accurate scan tool readings for proper operation. 100% re-soldering of critical components ensures superior electrical connections, eliminates intermittent failures and lengthens product life. With CARDONE Mass Air Flow Sensors (MAFS), you can expect smooth vehicle performance.

Product Features:
  • 100% re-solder of critical components ensures superior electrical connections, no intermittent failures and longer product life.
  • On-car vehicle validation routines ensure that modules meet all form, fit, durability and performance requirements.
  • All modules are 100% tested with automated computer test equipment to ensure full functionality and reliability.
  • Our sensors precisely track O.E. output curves and maintain spec tolerances to ensure accurate feedback to the vehicle┐s engine control management system.
  • Components are rated to handle demanding temperature variations for optimum reliability in every environment.
  • As a remanufactured Original Equipment part, this unit guarantees a perfect vehicle fit.
  • Our remanufacturing process is earth-friendly, as it reduces the energy and raw material needed to make a new part by 80%.
See More

ACDelco – Multi-Purpose Wire Connector with Leads (Part No.PT2164)

Multi-Purpose Wire Connector with Leads

from

$16.79
ACDelco Professional Air Charge Temperature Sensor Connector is a high quality aftermarket replacement component for one or more of the following vehicle systems: ignition, starting and charging, body-electrical and lighting, and/or engine fuel management. This premium aftermarket connector is manufactured to meet or exceed your expectations for fit, form, and function.

Product Features:
  • Professional, premium aftermarket replacement
  • Provides the performance and dependability you expect from ACDelco
  • Manufactured to meet expectations for fit, form, and function
See More

Bosch – Relay (Part No.P202013241BOS)

Relay

from

$39.87
Bosch is one of the largest global suppliers of automotive products, developing, manufacturing and supplying precision OE components and systems to vehicle manufacturers and the automotive aftermarket.
See More

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

Fuel Tank Cleaning Kit

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:
  • Helps avoid premature fuel pump failure
  • Lint free towel included
  • Low suds formulation
  • Removes harmful contaminants from the fuel tank
See More

Carquest Premium – Locking Fuel Cap: 10505, Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10505)

Locking Fuel Cap: 10505, Screw On, Direct Fit, Provides Tight Seal, 1 Pack

from

$20.99
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:
  • 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
See More

Carquest Premium – Fuel Cap: 10835, Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10835)

Fuel Cap: 10835, Screw On, Direct Fit, Provides Tight Seal, 1 Pack

from

$12.99
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:
  • 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
See More

Motorad – Tethered Fuel Cap (Part No.MGC835T)

Tethered Fuel Cap

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:
  • 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
See More

DENSO – Oxygen Sensor: Upstream, 3 Wire, 49.49" Long, Heated, Exact Fit (Part No.234-3048)

Oxygen Sensor: Upstream, 3 Wire, 49.49" Long, Heated, Exact Fit

from

$97.99
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 posining for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit, the first time.

Product Features:
  • Specifically designed to meet the increasing demands of today’s engines
  • 100% 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
See More

DENSO – Oxygen Sensor: 3 Wire, 11.77" Long, Heated, Universal Fit (Part No.234-3000)

Oxygen Sensor: 3 Wire, 11.77" Long, Heated, Universal Fit

from

$74.99
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 posining for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit, the first time.

Product Features:
  • Specifically designed to meet the increasing demands of today’s engines
  • 100% 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
See More

DENSO – Universal Oxygen Sensor (Part No.C5010100820ND)

Universal Oxygen Sensor

from

$83.41
Denso Universal First Time Fit oxygen sensors are constructed of the highest quality materials available. High-quality stainless steel, porous polytetrafluoroethylene (PTFE), fluorine rubber, aluminum oxide, high-grade platinum and ceramics are used in each DENSO sensor. Denso First Time Fit oxygen sensors are coated with a special formulation of aluminum oxide to trap impurities outside of the ceramic element. In head-to-head testing against the leading competitors, DENSO oxygen sensors were rated two times more resistant to silicone and lead poisoning.

Product Features:
  • SUPERIOR DESIGN – Maximizes engine performance and fuel efficiency while reducing harmful emissions.
  • DOUBLE-PROTECTION COVER – Maintains proper unit temperature for quicker response times and protects the ceramic element against silicone and lead poisoning.
  • ALUMINUM-OXIDE TRAP LAYER – Keeps silicone and lead outside the ceramic element through DENSO’s exclusive design, preventing damage to the platinum electrode.
  • STAINLESS STEEL HOUSING – Resists corrosion and contamination with a rugged, watertight body.
See More

Bosch – Oxygen Sensor: 3 Wire, 28.54" Long, Heated, Universal (Part No.15735)

Oxygen Sensor: 3 Wire, 28.54" Long, Heated, Universal

from

$79.99
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:
  • 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
See More

Carquest Premium – Fuel Cap Tester Adapter (Part No.12427)

Fuel Cap Tester Adapter

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:
  • 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
See More

Carquest Premium – Fuel Cap Tester Adapter (Part No.12410)

Fuel Cap Tester Adapter

from

$15.99
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Product Features:
  • BAR Certified adapters
  • Adapter check’s a fuel cap’s ability to hold pressure.
  • Adapters meet EPA standards for recommended fleet coverage.
  • Check adapter application chart for specific makes and models
See More

Elring – Fuel Injector O-Ring (Part No.C101262400ELR)

Fuel Injector O-Ring

from

$1.09
Fuel Injector O-Ring

Upgrade your 1991 Audi Coupe Quattro with Top-Quality Fuel and Emissions Systems

When it comes to maintaining or upgrading your 1991 Audi Coupe Quattro, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Audi or enhancing its overall performance, Fuel and Emissions Systems are key to keeping your Coupe Quattro functioning at its best. At Advance Auto Parts, we offer a wide selection of 22 Fuel and Emissions Systems for the 1991 Audi Coupe Quattro, designed to meet your needs without breaking the bank. From Fuel Pump replacements to Gas Caps 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 1991 Audi Coupe Quattro at great prices. Our Fuel and Emissions Systems inventory for this model ranges from just $1.09 to $347.99, with an average price of $83.58. Our 22 Fuel and Emissions Systems in stock come from 11 trusted brands, so you’re sure to find the right part for your 1991 Audi Coupe Quattro 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 1991 Audi Coupe Quattro, we stock popular OEM and aftermarket Fuel and Emissions Systems from top names like Bosch Carquest Premium, and more. Bosch Fuel and Emissions Systems start at just $39.87 and boast an impressive 5 stars average rating from customers. With 8 customer reviews and counting, our 1991 Audi Coupe Quattro 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 1991 Audi Coupe Quattro is always ready to roll. We’re committed to providing you with everything you need to keep your Coupe Quattro in top shape, all in one place. Start shopping confidently below for your 1991 Audi Coupe Quattro!

Best-Selling Fuel Pumps for 1991 Audi Coupe Quattros

Enhance the driving experience in your Audi with 4 quality Fuel Pump components, starting at $15.99.

Bosch – Turbine Electric Fuel Pump (Part No.E3000162965BOS)

Turbine Electric Fuel Pump

from

$199.21
Benchmark quality from the worldwide leader in fuel injection technology. Bosch state-of-the-art turbine fuel pumps offer many advantages when compared to older roller-cell and inner-gear pump designs. These pumps offer near silent operation and improved drivability, the core components of this turbine design significantly reduce wear and deliver a longer service life. Bosch Turbine Fuel Pumps are nearly identical in dimension and appearance to the units they replace for a precise fit every time. Plus, application-specific, illustrated step-by-step instructions are included with all Bosch Turbine Fuel Pumps for safe and easy installation. To prevent hot start problems, Bosch includes a non-return valve that maintains system pressure long after the vehicle has been shut off.

Product Features:
  • OE-Equivalent Direct fit for easy installation.
  • OE connections and fittings.
  • Superior turbine pump design that virtually eliminates fuel pulsation.
  • Precision, spin-balanced armature to reduce noise and vibration.
  • Premium carbon brushes, utilizing advanced materials.
  • Noise suppression coil that eliminates radio frequency interference.
  • Illustrated step-by-step instructions are included.
See More

Vemo – Electric Fuel Pump (Part No.E300049475VMO)

Electric Fuel Pump

from

$173.44
The Vemo Electric Fuel Pump meets or exceeds the OE specifications for fit, durability and performance.

Product Features:
  • OE-Equivalent electric fuel pump.
  • Direct fit for easy installation.
  • OE connections and fittings.
  • Highly efficient turbine design.
  • Designed for quieter operation.
See More

Carquest Premium – Fuel Cap Tester Adapter (Part No.12427)

Fuel Cap Tester Adapter

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:
  • 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
See More

Carquest Premium – Fuel Cap Tester Adapter (Part No.12410)

Fuel Cap Tester Adapter

from

$15.99
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Product Features:
  • BAR Certified adapters
  • Adapter check’s a fuel cap’s ability to hold pressure.
  • Adapters meet EPA standards for recommended fleet coverage.
  • Check adapter application chart for specific makes and models
See More

Most Popular 1991 Audi Coupe Quattro Gas Caps

Customize your Audi with 3 Gas Caps products like Gas Caps, all priced under $20.99.

Carquest Premium – Locking Fuel Cap: 10505, Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10505)

Locking Fuel Cap: 10505, Screw On, Direct Fit, Provides Tight Seal, 1 Pack

from

$20.99
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:
  • 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
See More

Carquest Premium – Fuel Cap: 10835, Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10835)

Fuel Cap: 10835, Screw On, Direct Fit, Provides Tight Seal, 1 Pack

from

$12.99
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:
  • 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
See More

Motorad – Tethered Fuel Cap (Part No.MGC835T)

Tethered Fuel Cap

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:
  • 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
See More

Top Picks for 1991 Audi Coupe Quattro Fuel Injectors

Upgrade Audi Coupe Quattros with top-quality Fuel Injectors parts, including 2 OEM and aftermarket selections for your 1991 model.

Cardone – Remanufactured Mass Air Flow Sensor (Part No.74-9595)

Remanufactured Mass Air Flow Sensor

from

$179.99
CARDONE Remanufactured Mass Air Flow Sensors (MAFS) precisely track O.E. output curves and maintain specific tolerances to ensure accurate scan tool readings for proper operation. 100% re-soldering of critical components ensures superior electrical connections, eliminates intermittent failures and lengthens product life. With CARDONE Mass Air Flow Sensors (MAFS), you can expect smooth vehicle performance.

Product Features:
  • 100% re-solder of critical components ensures superior electrical connections, no intermittent failures and longer product life.
  • On-car vehicle validation routines ensure that modules meet all form, fit, durability and performance requirements.
  • All modules are 100% tested with automated computer test equipment to ensure full functionality and reliability.
  • Our sensors precisely track O.E. output curves and maintain spec tolerances to ensure accurate feedback to the vehicle┐s engine control management system.
  • Components are rated to handle demanding temperature variations for optimum reliability in every environment.
  • As a remanufactured Original Equipment part, this unit guarantees a perfect vehicle fit.
  • Our remanufacturing process is earth-friendly, as it reduces the energy and raw material needed to make a new part by 80%.
See More

Elring – Fuel Injector O-Ring (Part No.C101262400ELR)

Fuel Injector O-Ring

from

$1.09
Fuel Injector O-Ring

In-Demand Oxygen Sensors for 1991 Audi Coupe Quattros

Select from 6 premium Oxygen Sensors parts for your 1991 Audi Coupe Quattro, with prices ranging from $71.99 to $128.36.

Bosch – Oxygen Sensor: 3 Wire, 47.83" Long, Heated, Exact Fit (Part No.13957)

Oxygen Sensor: 3 Wire, 47.83" Long, Heated, Exact Fit

from

$71.99
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:
  • 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
See More

Bosch – Oxygen Sensor: 3 Wire, 28.54" Long, Heated, Universal (Part No.15735)

Oxygen Sensor: 3 Wire, 28.54" Long, Heated, Universal

from

$79.99
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:
  • 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
See More

DENSO – Oxygen Sensor: Upstream, 3 Wire, 49.49" Long, Heated, Exact Fit (Part No.234-3048)

Oxygen Sensor: Upstream, 3 Wire, 49.49" Long, Heated, Exact Fit

from

$97.99
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 posining for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit, the first time.

Product Features:
  • Specifically designed to meet the increasing demands of today’s engines
  • 100% 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
See More

Delphi – Oxygen Sensor (Part No.C50101231066DEL)

Oxygen Sensor

from

$128.36
Oxygen Sensor

DENSO – Universal Oxygen Sensor (Part No.C5010100820ND)

Universal Oxygen Sensor

from

$83.41
Denso Universal First Time Fit oxygen sensors are constructed of the highest quality materials available. High-quality stainless steel, porous polytetrafluoroethylene (PTFE), fluorine rubber, aluminum oxide, high-grade platinum and ceramics are used in each DENSO sensor. Denso First Time Fit oxygen sensors are coated with a special formulation of aluminum oxide to trap impurities outside of the ceramic element. In head-to-head testing against the leading competitors, DENSO oxygen sensors were rated two times more resistant to silicone and lead poisoning.

Product Features:
  • SUPERIOR DESIGN – Maximizes engine performance and fuel efficiency while reducing harmful emissions.
  • DOUBLE-PROTECTION COVER – Maintains proper unit temperature for quicker response times and protects the ceramic element against silicone and lead poisoning.
  • ALUMINUM-OXIDE TRAP LAYER – Keeps silicone and lead outside the ceramic element through DENSO’s exclusive design, preventing damage to the platinum electrode.
  • STAINLESS STEEL HOUSING – Resists corrosion and contamination with a rugged, watertight body.
See More

DENSO – Oxygen Sensor: 3 Wire, 11.77" Long, Heated, Universal Fit (Part No.234-3000)

Oxygen Sensor: 3 Wire, 11.77" Long, Heated, Universal Fit

from

$74.99
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 posining for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit, the first time.

Product Features:
  • Specifically designed to meet the increasing demands of today’s engines
  • 100% 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
See More

Most Sold 1991 Audi Coupe Quattro Air Flow Sensors

Explore our best-selling Audi parts for the 1991 Coupe Quattro among 1 OEM and aftermarket options starting from $16.79.

ACDelco – Multi-Purpose Wire Connector with Leads (Part No.PT2164)

Multi-Purpose Wire Connector with Leads

from

$16.79
ACDelco Professional Air Charge Temperature Sensor Connector is a high quality aftermarket replacement component for one or more of the following vehicle systems: ignition, starting and charging, body-electrical and lighting, and/or engine fuel management. This premium aftermarket connector is manufactured to meet or exceed your expectations for fit, form, and function.

Product Features:
  • Professional, premium aftermarket replacement
  • Provides the performance and dependability you expect from ACDelco
  • Manufactured to meet expectations for fit, form, and function
See More

Top-Rated Fuel and Emissions Systems Brands For Your 1991 Audi Coupe Quattro

Shop for the best-rated brands offering Fuel and Emissions Systems and other products for your 1991 Audi Coupe Quattros. Below you’ll find some of our best rated Fuel and Emissions Systems from Bosch and Carquest Premium, and more. Fuel and Emissions Systems from these brands that fit a 1991 Coupe Quattro start at just $12.99 and are rated as high as 5 stars. OEM and aftermarket Fuel and Emissions Systems don’t get more top quality, durable, and affordable than from the brands below.

Popular Bosch 1991 Audi Coupe Quattro Fuel and Emissions Systems

When it comes to maintaining or upgrading your 1991 Audi Coupe Quattro, 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 1991 Audi Coupe Quattro. With over 4 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 $39.87, with an average price of just $97.77. Plus, with over 5 customer reviews and an average rating of 5 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.

Relay
from
$39.87
This product is not rated

Relay

“”

Turbine Electric Fuel Pump
from
$199.21
This product is not rated

Turbine Electric Fuel Pump

“”

Oxygen Sensor: 3 Wire, 28.54" Long, Heated, Universal
from
$79.99
This product is not rated

Oxygen Sensor: 3 Wire, 28.54" Long, Heated, Universal

“”

Popular Carquest Premium 1991 Audi Coupe Quattro Fuel and Emissions Systems

Carquest Premium auto parts is one of the highest quality Fuel and Emissions System brands in the market. Any 1991 Audi Coupe Quattro owner should feel confident when installing genuine Carquest Premium parts in their vehicle. To ensure the best fit and performance for your 1991 Coupe Quattro, Advance Auto Parts carries a full inventory of 6 Carquest Premium Fuel and Emissions Systems. Plus you will be keeping your Audi in peak condition while saving money because prices on these Carquest Premium Fuel and Emissions Systems range from $12.99 to $347.99, plus, with more than 3 customer reviews and an impressive 4 stars average rating, you can be confident the Fram Fuel and Emissions Systems below will deliver on both quality and value.

Fuel Cap Tester Adapter
from
$34.99
This product is not rated

Fuel Cap Tester Adapter

“”

Exhaust Gas Recirculation (EGR) Valve Temperature Sensor
from
$347.99
This product is not rated

Exhaust Gas Recirculation (EGR) Valve Temperature Sensor

“”

Fuel Cap Tester Adapter
from
$15.99
This product is not rated

Fuel Cap Tester Adapter

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FAQs for 1991 Audi Coupe Quattro Fuel and Emissions Systems

Which Fuel and Emissions Systems are best-sellers for 1991 Audi Coupe Quattros?

Out of 22 Fuel and Emissions Systems that fit 1991 Audi Coupe Quattros, the following parts are the top sellers:

What’s the price range for 1991 Audi Coupe Quattro Fuel and Emissions Systems?

Fuel and Emissions System prices for the 1991 Audi Coupe Quattro start at $1.09 and go up to $347.99 for the most premium parts.

What’s the average price of a Fuel and Emissions System for a 1991 Audi Coupe Quattro?

The average price for Fuel and Emissions Systems for the 1991 Audi Coupe Quattro is $83.58. 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 Audi Coupe Quattro model years?

Yes, we currently carry Fuel and Emissions Systems for 1 model years of Audi Coupe Quattros between 1990 and 1990. Fuel and Emissions Systems are bought most frequently for the following model years: 1990.

What are the cheapest Fuel and Emissions Systems for my 1991 Audi Coupe Quattro?

The cheapest 1991 Audi Coupe Quattro Fuel and Emissions Systems we carry in stock are:

What are the top-rated Fuel and Emissions Systems that fit the 1991 Audi Coupe Quattro?

Out of 8 reviews by customers, our 1991 Audi Coupe Quattro Fuel and Emissions Systems have an average customer rating of . These are some of the highest-rated Fuel and Emissions System types for the 1991 Audi Coupe Quattro and their top-rated products:

What types of Fuel and Emissions Systems do you sell for my 1991 Audi Coupe Quattro?

As of 2/5/25, these are some of the most in-demand types of Fuel and Emissions Systems for a 1991 Audi Coupe Quattro:

Can I get help with 1991 Audi Coupe Quattro 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 Audi Fuel and Emissions Systems and more.

What is your return policy for Audi Coupe Quattro Fuel and Emissions Systems?

Advance Auto Parts keeps returns simple. For new Audi Coupe Quattro 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.