1981 Audi 4000 Fuel and Emissions Systems

Essential 1981 Audi 4000 Fuel and Emissions Systems

Elring – Injector Heat Shield (Part No.D101013975ELR)

Injector Heat Shield

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$2.17
Injector Heat Shield

Dorman – 30 AMP 12 Volt 4 Pin Universal Relay (Part No.84601)

30 AMP 12 Volt 4 Pin Universal Relay

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$9.99
This relay connector is designed to match the appearance and function of the original hardware on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this relay connector matches the appearance and function of the factory hardware on specified applications
  • Ideal solution – this connector is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Kayser – Vacuum Check Valve (Part No.O404032232KAY)

Vacuum Check Valve

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$23.71
Vacuum Check Valve

Carquest Premium – Fuel Cap: 10810, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10810)

Fuel Cap: 10810, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack

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$9.49
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
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Bosch – Fuel Injector 62354: New (Part No.62278)

Fuel Injector 62354: New

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$71.99
Bosch Port Fuel Injectors (PFI) have a robust design and are capable of using Ethanol fuel (E100). All Bosch fuel injectors released to the aftermarket are OE fit, form and function, and are produced to OE specifications. The Bosch fuel injector has a return rate of 1 part per million (PPM), making Bosch the industry benchmark. Bosch is a recognized OE leader in fuel systems technology, with more than 45 years of gasoline fuel injection experience. The fuel injection program provides vast coverage for Domestic, European, And Asian vehicles.

Product Features:
  • Guaranteed OE fit, form and function
  • Manufactured of the highest quality materials
  • Provides precision flow and original spray pattern for optimal performance
  • Product includes top and bottom mounting o-ring
  • Maintains new-car smoothness and drivability
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Bosch – Port Fuel Injector (Part No.C100013516BOS)

Port Fuel Injector

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$75.96
Port Fuel Injection (PFI) is the world’s most widely used system for internal combustion engines and offers many advantages for engines with a low pressure output.

Product Features:
  • Low-pressure systems are less complex and more affordable than high-pressure systems
  • Robust combustion process tolerates lower-quality fuel
  • Maintenance-friendly design reduces the overhead for system diagnostics
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Carquest Premium – Multi Purpose Relay (Part No.RAA1337)

Multi Purpose Relay

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$15.99
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Bosch – Relay (Part No.P202013241BOS)

Relay

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$39.27
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.
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Carquest Premium – Exhaust Gas Recirculation (EGR) Valve Gasket (Part No.EVA1107)

Exhaust Gas Recirculation (EGR) Valve Gasket

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

EGR/EXHAUST AIR SUPPLY GASKET

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

Fuel Tank Cleaning Kit

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$12.49
To perform a complete fuel pump replacement, clean the tank every time. Order the Delphi Fuel Tank Cleaning Kit (Part FC01). Remember, the original pump went into a clean fuel tank, to ensure the same level of performance, the new pump should too. 100 ye

Product Features:
  • Helps avoid premature fuel pump failure
  • Lint free towel included
  • Low suds formulation
  • Removes harmful contaminants from the fuel tank
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NTK – NTK Oxygen Sensor (Part No.C501062963NTK)

NTK Oxygen Sensor

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$53.51
NTK is the world’s largest supplier and manufacturer of original equipment oxygen sensors. NTK oxygen sensors meet or exceed original equipment specifications and are equipped with waterproof factory fitted connectors to ensure a perfect fit every time. Every NTK oxygen sensor is individually tested to ensure the highest level of quality and reliability.

Product Features:
  • OE-Equivalent.
  • Direct fit for easy installation.
  • Extensively Tested During Manufacture to Guarantee Quality and Reliability
  • Supplied With a Factory-Fitted OEM Connector for Easy Installation
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CRP – HOSE – FUEL (Part No.4L30010814CRP)

HOSE - FUEL

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$553.70
HOSE – FUEL

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

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

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$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 advancements. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.  Bosch oxygen sensors deliver exceptional OE level reliability, performance and durability, further improving service life of the product. 

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
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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

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$97.99
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.

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
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Bosch – Bosch Fuel Accumulator (Part No.E400024541BOS)

Bosch Fuel Accumulator

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$179.17
Bosch is a global leader in the engineering and manufacture of the original equipment Fuel Accumulator for K-JETRONIC fuel injection systems. Starting and running problems occur when the fuel accumulator is defective. All K-JETRONIC fuel injection systems use the fuel accumulator to assist in preventing hot start vapor lock and keeping the pressure and flow in the fuel distributor consistent. The accumulator contains an internal spring-loaded diaphragm that prevents vapor lock by keeping the system pressurized after the engine has been shut off. If the K-JETRONIC equipped vehicle is having warm start problems, it is likely the fuel accumulator has failed.

Product Features:
  • Original Equipment Supplier
  • Sturdy compact design
  • Withstands the most severe operating conditions
  • Engineered to the exact OEM specifications
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Elring – Fuel Injector O-Ring (Part No.C101262400ELR)

Fuel Injector O-Ring

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$1.07
Fuel Injector O-Ring

Carquest Premium – Electric Fuel Pump Inertia Switch (Part No.SBA4426)

Electric Fuel Pump Inertia Switch

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$84.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Bosch – Check Valve (Part No.E303027424BOS)

Check Valve

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$41.43
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.
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Elring – Cold Start Valve Gasket (Part No.C400155249ELR)

Cold Start Valve Gasket

from

$2.76
Cold Start Valve Gasket

1981 Audi 4000 Fuel and Emissions Systems

You count on your 1981 Audi 4000 to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Fuel and Emissions Systems. With 20 Fuel and Emissions Systems ranging in price from $1.07 to $553.70, you’re sure to find everything you need for your 1981 Audi 4000.

Brands matter. If you want to shop a specific Fuel and Emissions Systems brand, we stock 8 different brands like Dorman, Delphi, and Bosch. 1981 Audi 4000 Fuel and Emissions Systems start as low as $1.07!

One of the best ways to find top quality OEM or aftermarket Fuel and Emissions Systems is by asking professionals. Short of that, you can shop with confidence thanks to our 94 extensive product reviews on 1981 Audi 4000 Fuel and Emissions Systems.

Did we mention you can order your Fuel and Emissions Systems from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Fuel and Emissions Systems inventory for your 1981 Audi 4000 below to get started!

Top-Rated Fuel and Emissions Systems Brands For Your 1981 Audi 4000

Trusted Fuel and Emissions Systems OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 1981 Audi 4000 running right for years to come. In our inventory you’ll find brands like Dorman, Delphi, Bosch, and even more.

Popular Dorman Fuel and Emissions Systems

You’ll find popular Dorman brand products across Emission Controls. All are waiting to get your 1981 Audi 4000 back on the road. Some of the top-rated Dorman products in these categories are:
30 AMP 12 Volt 4 Pin Universal Relay
from $9.99
(8)
30 AMP 12 Volt 4 Pin Universal Relay
Vacuum Pump Relay

FAQs for 1981 Audi 4000 Fuel and Emissions Systems

What are the most purchased Fuel and Emissions Systems for the 1981 Audi 4000?

Out of 20 Fuel and Emissions Systems for the 1981 Audi 4000, the most popular in our inventory are:
Fuel Tank Cleaning Kit
from $12.49
This product is not rated
Fuel Tank Cleaning Kit
Fuel Tank Cleaning Kits