2021 Audi A4 Quattro Filters and PCVs

Below you will find various in-demand Audi Filters and PCVs, components and accessories for your 2021 A4 Quattro. Advance Auto Parts has popular A4 Quattro parts like Positive Crankcase Ventilation (PCV) Parts, Cabin Air Filters, Transmission Filters and more. You’ll also find aftermarket and OEM Filters and PCVs for other A4 Quattro model years including 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2022, 2023 and more. Select a category of 2021 Audi A4 Quattro Filters and PCVs below and start saving instantly.

Popular 2021 Audi A4 Quattro Filters and PCVs Categories

Oil Filters

Cabin Air Filters

Automatic Transmission Filter Kits

Air Filters

Automatic Transmission Filters

Oil Filter Caps

Oil Pan Drain Plugs

Crankcase Vent Valves

Essential Filters and PCVs for 2021 Audi A4 Quattros

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$29.49

Replacing an air filter every 12 months or 12,000 miles can have a significant impact on engine performance and efficiency. PurolatorONE┐ Air Filters trap up to 99% of dirt, dust, soot and other debris, helping to protect your engine from damage. A new air filter may also help prevent engine wear, improve fuel efficiency and can even improve acceleration by up to 11% (U.S. DOE study). PurolatorONE Air Filters are widely available for most passenger cars and light trucks on the road today. Changing your air filter regularly is an easy way to keep your engine running at peak performance. Full synthetic or highly embossed media for superior strength and dirt holding capacity; Blocks up to 99% of damaging dirt, soot and debris from entering your engine. Optimizes engine airflow with precision fit polyurethane framingHelps improve acceleration and boost engine efficiency. Employs steel grid backing, ridge supports or polyamide high temperature glue beads to provide superior strength and stability. Meets or exceeds OE specifications; Trusted OE supplier

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$10.99

To achieve optimum performance, combustion engines require clean intake air. If pollutants in the air, such as soot or dust, get into the combustion chamber, pitting may occur on the cylinder heads, causing premature wear of the engine. The function of electronic parts located between the suction and the combustion chamber may also be significantly impaired. MANN-FILTER air filters are the end of the road for all dirt particles. No matter whether it’s dust, pollen, sand, soot or even water droplets – thanks to the highest degree of dirt separation and high mechanical stability, MANN-FILTER air filters filter even the smallest particles out of the intake air. This enables an optimum composition of the fuel-air ratio and ensures that the engine performance is consistent. In order to guarantee performance, air filters must be checked regularly, as a blocked filter will impede the air supply to the engine. The possible consequence of this is: the fuel may not be completely burned and may in part be discarded without being used.

Product Features:

Highest degree of dirt separation and high mechanical stability
Perfectly adapted in form and function to the widest possible range of installation situations
Filter even the smallest particles out of the intake air
Enables an optimum composition of the fuel-air ratio and ensures that the engine performance is consistent
High dust holding capacity ensures reliability throughout the entire service interval
Replace annually for optimal fresh, clean air

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$23.79

Carquest Premium engine air filters are designed to meet OE fit, form and function for optimal filtration and engine protection. High-quality paper, enhanced bonding, and reinforced metal screen backing give Carquest Premium air filters the added strength and durability that modern engines demand. Built to meet or exceed original equipment standards, Carquest Premium air filters provide exceptional engine protection and optimal performance in all driving conditions.

Product Features:

Precision engineered to match OE fit, form and function
Media provides 99% filtration efficiency and larger capacity
Sealing materials are designed for each application to ensure a positive seal
Reinforced metal screen backing with anti-rust coating on applicable applications
Built to withstand high CFM conditions of forced induction engines

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$24.99

This engine oil drain plug is designed to match the fit and function of an original equipment plug on specified vehicles. It is engineered to replace a missing or damaged plug and help ensure a secure seal.

Product Features:

Direct replacement – this engine oil drain plug is designed to match the fit and function of an original equipment plug on specified vehicles.
Ideal solution – engineered to replace a missing or damaged plug and help ensure a secure seal
Durable construction – designed and manufactured to strict specifications for reliable performance
Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience

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$2.99

Direct replacement – this engine oil drain plug is designed to match the fit and function of an original equipment plug on specified vehicles.
Ideal solution – engineered to replace a missing or damaged plug and help ensure a secure seal
Durable construction – designed and manufactured to strict specifications for reliable performance
Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience

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$3.25

OIL DRAIN PLUG

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$111.99

Cracked or stripped filter cover making oil changes difficult? This direct replacement oil filter cap matches the fit and function of the original equipment cap for a reliable repair.

Product Features:

Ideal replacement – this engine oil filter cover is a direct replacement for the original equipment filter cover.
Durable construction – this part is specifically designed to withstand extreme underhood temperatures to resist cracking and leaking.
Quality tested – this part has undergone extensive testing to ensure a quality fit and long service life
Easy to install – no special tools required

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$33.49

Ideal replacement – this engine oil filter cover is a direct replacement for the original equipment filter cover.
Durable construction – this part is specifically designed to withstand extreme underhood temperatures to resist cracking and leaking.
Quality tested – this part has undergone extensive testing to ensure a quality fit and long service life
Easy to install – no special tools required

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$58.99

Ideal replacement – this engine oil filter cover is a direct replacement for the original equipment filter cover.
Durable construction – this part is specifically designed to withstand extreme underhood temperatures to resist cracking and leaking
Quality tested – this part has undergone extensive testing to ensure a quality fit and long service life
Easy to install – no special tools required

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$18.49

Carquest Premium cabin air filters are manufactured to the highest quality standards and field tested to ensure easy installation. Our cabin air filters are engineered to stop airborne contaminants from getting into the cabin while also protecting the delicate components of modern vehicle climate control systems. Carquest Premium cabin air filters utilize electrostatic particulate, non-woven media for longer filter life. Each Carquest Premium cabin air filter also includes application-specific installation instructions in the box to save you installation time.

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$43.99

Cabin air filters are designed to clean the air that enters a vehicle through the heating, ventilation, and air conditioning (HVAC) system. Cabin air filters absorb fumes, pollen, dust and pollutants from entering a vehicle and protects passengers from being exposed to these elements, especially those affected by allergies and other respiratory problems. Bosch HEPA Premium Cabin Air Filters are designed and tested to meet High Efficiency Particulate Air (HEPA) standards based on ISO 29463-3:2011 and provide filtration efficiency of 99.97% at 0.3 microns. This efficiency provides ultimate protection in trapping allergens, dust and other particulates that can enter your vehicle and provides the cleanest air possible for you and your family.

Product Features:

High Efficiency Particulate Cabin Air Filters are designed to trap microscopic pollutants including pollen, mold and common allergens
Provides true clean air to enhance respiratory health without adding formulated chemical odor neutralizer
Additional static cotton layer added to HEPA Media to provide high capacity in holding small particulates
Structural ribs added to provide increase stability of Filter
Recommended replacement at 12,000 miles or per vehicle owners manual

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$35.49

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$37.99

Rein Automotive transmission filters fit European vehicles the way the original manufacturer intended.

Product Features:

Direct replacement.
Includes all needed components to install the transmission filter.
Produced with high quality materials to ensure maximum life and a smooth ride.
Matches original equipment design specifications.

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$59.99

Beck/Arnley parts meet foreign nameplate OE specifications for form, fit and function. Our product specialists work with a network of global sourcing partners so you can install the right part with confidence.

Product Features:

Matches OE form, fit and function
Includes o-rings and/or gaskets that are required for complete filter installation
A premium Made rubber pan gasket is included if applicable
Be sure to use the specific ATF formulated for this transmission – check Beck/Arnley catalog
Application specific for this vehicle

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$32.29

AT Filter

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$36.99

Rein Automotive transmission filters fit European vehicles the way the original manufacturer intended.

Product Features:

Direct replacement.
Includes all needed components to install the transmission filter.
Produced with high quality materials to ensure maximum life and a smooth ride.
Matches original equipment design specifications.

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$61.59

AT Filter

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$37.99

Provides OE-quality filtration to remove contaminants and extend the life of your transmission. Domestic and import applications available. Where applicable, sure hold gaskets are designed to keep your pan gasket in place during installation. Filtering media may consist of felt, paper, or stainless screens that meet original or exceed original OE specifications. Meets or exceeds all OEM fit and quality requirements. High efficiency filtration. Prevents loose material from re-entering the transmission.

Product Features:

Guaranteed OE quality form, fit and function
Superior quality filter media traps harmful contaminants, ensuring clean transmission fluid to protect your transmission and its components
Premium Sure Hold gaskets hold pan bolts in place for easy installation and guarantee a leak-free seal. Gasket may not be included with every kit.

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$22.49

Provides OE-quality filtration. Sure Hold gaskets are designed to keep your pan gasket in place during installation. Includes trilingual instructions.

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$17.49

PurolatorBOSS Premium Oil Filters are the next generation in oil filtration, delivering maximum engine protection for up to 15,000 miles. PurolatorBOSS exclusively features SmartFUSION Technology “ a full synthetic filter media with reinforced polymer mesh backing for over 99% Dirt Removal Power. Engineered to work well with all oil types and viscosities, especially full synthetic oil, PurolatorBOSS is ideal for the most demanding driving conditions, including frequent towing and hauling, stop and go traffic, long commutes, long idle periods and extreme climates. Its rugged internal construction withstands wear and high mileage with a heavy duty BOSS Steel Casing and an innovative double helix, high-flow center tube for twice the strength of traditional side-seam designed center tubes. Widely available for most vehicles on the road today, PurolatorBOSS combines the latest filter technologies for long-lasting protection and advanced engine performance. Up to 15,000 miles – maximum engine protection; over 99% Dirt Removal Power. SmartFUSION Technology “ a full synthetic filter media with reinforced polymer mesh backing for expanded dirt holding capacity. Silicone anti-drainback valve prevents dry starts. BOSS Steel Casing withstands extreme pressure while metal end-caps enhance durability. PuroSEAL Gasket made from ethylene-acrylic for maximum leak protection.

Product Features:

Up to 15,000 miles – maximum engine protection
Ideal for full synthetic oils
Over 99% Dirt Removal Power
SmartFUSION Technology – a full synthetic filter media with reinforced polymer mesh backing for expanded dirt holding capacity
Silicone anti-drainback valve prevents dry starts
BOSS Steel Casing withstands extreme pressure while metal end-caps enhance durability
PuroSEAL Gasket made from ethylene-acrylic for maximum leak protection

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$28.49

Carquest spin-on lube filters protect your engine from wear particles that can otherwise lead to premature parts failure.

Product Features:

Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
Heavy base plate to ensure minimal defection during extreme engine vibrations
Tapped threads vs rolled threads ensure proper mounting torque is achieved

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$13.99

K&N Cartridge Oil Filters are designed to satisfy the needs of racers and engine builders as well as the average vehicle owner who wants the best oil filter available. K&N cartridge oil filters trap harmful contaminants while the filter’s construction allows for high oil flow rates. All K&N oil filters are manufactured to meet stringent engineering standards. They are covered by a limited warranty to be free from defects in materials and workmanship when installed and replaced using engine and equipment manufacturer’s recommended service intervals.

Product Features:

High performance design for outstanding filtration
High-efficiency media with uniform pleats
Allows for high oil flow rates
Ideal for high-end synthetic motor oil

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$9.99

More and more performance, less and less consumption – in order to meet the high demands placed on modern engines, automobile manufacturers demand the absolute highest levels of performance from the engine components used. The oil circuit is of central importance here, as only clean engine oil can permanently ensure consistent engine performance. If the circulating oil is not permanently freed of impurities and combustion residues, protection from wear is no longer guaranteed. In the worst case, this may even damage the engine. If you want to play it safe when choosing an oil filter, choose MANN-FILTER. They are designed for modern high-performance oils and can stand up to even the most demanding technical challenges. As the application areas of oil filters and the demands placed on them vary, MANN-FILTER oil filters are available in different designs.

Product Features:

Outstanding dirt holding capacity
Prolongs service intervals and continues to meet the technical requirements of high-performance engines
Offers even faster and optimized oil supply when starting the engine

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$59.78

Due to the integrated two-chamber system, the cyclonic separator requires significantly less maintenance. In gas engines and, in particular, in supercharged diesel engines, so-called blow-by gases occur during combustion, which pass from the combustion chamber into the crankcase. As this is contaminated by very fine oil droplets, fuel residues, steam and soot, the gas must be cleaned by means of an oil separator before it is re-fed to the intake air of the engine. Otherwise it can lead to tarry deposits in the intake lines of the turbocharger and other components. To ensure a long service life of all major components, we recommend, depending on the vehicle, a replacement interval of 60.000 to 80,000 kilometers for diesel engines and 80,000 to 100,000 kilometers for gasoline engines.

Product Features:

OE Quality
Requires significantly less maintenance
Integrated two-chamber system
Cyclone separator design

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$35.26

OE Quality
Requires significantly less maintenance
Integrated two-chamber system
Cyclone separator design

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$78.46

Crankcase Vent Valve

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$85.31

Crankcase Vent Valve

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$112.48

Oil Separator

Upgrade your 2021 Audi A4 Quattro with Top-Quality Filters and PCVs

When it comes to maintaining or upgrading your 2021 Audi A4 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, Filters and PCVs are key to keeping your A4 Quattro functioning at its best. At Advance Auto Parts, we offer a wide selection of 22 Filters and PCVs for the 2021 Audi A4 Quattro, designed to meet your needs without breaking the bank. From Positive Crankcase Ventilation (PCV) Part replacements to Cabin Air Filters 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 Filters and PCVs for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Filters and PCVs for your 2021 Audi A4 Quattro at great prices. Our Filters and PCVs inventory for this model ranges from just $8.31 to $89.33, with an average price of $28.21. Our 22 Filters and PCVs in stock come from 12 trusted brands, so you’re sure to find the right part for your 2021 Audi A4 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 2021 Audi A4 Quattro, we stock popular OEM and aftermarket Filters and PCVs from top names like Carquest Premium Dorman, and more. Carquest Premium Filters and PCVs start at just $12.49 and boast an impressive 4 stars average rating from customers. With 168 customer reviews and counting, our 2021 Audi A4 Quattro Filters and PCVs 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 Filters and PCV upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 2021 Audi A4 Quattro is always ready to roll. We’re committed to providing you with everything you need to keep your A4 Quattro in top shape, all in one place. Start shopping confidently below for your 2021 Audi A4 Quattro!

Best-Selling Positive Crankcase Ventilation (PCV) Parts for 2021 Audi A4 Quattros

Enhance the driving experience in your Audi with 1 quality Positive Crankcase Ventilation (PCV) Part components, starting at $42.57.

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$42.57

Oil Separator Gasket

Most Popular 2021 Audi A4 Quattro Cabin Air Filters

Customize your Audi with 3 Cabin Air Filters products like Cabin Air Filters, all priced under $35.49.

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$35.49

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$21.99

Removes unwanted particles and harmful gases from the air to help ensure a cleaner atmosphere inside the vehicle.

Product Features:

Reduces Pollen and dust inside a vehicle
Recommend replacement every 12,000 miles
Cleans and freshens air entering a vehicle’s ventilation system

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$23.99

FRAM Drive ¿ cabin air filters prevent harmful airborne particles from entering your vehicle¿s cabin. It is engineered to filter the air before it gets to you, removing dust, pollen, and other pollutants. Replacing a dirty cabin air filter with a new FRAM Drive cabin air filter can optimize clean air flow and maintain peak HVAC system performance. FRAM recommends changing your cabin air filter every 12 months.

Product Features:

Up to 12 months or 12,000 mile protection
Removes dust, pollen, and other pollutants
Optimizes airflow and maintains HVAC performance
50000106

Top Picks for 2021 Audi A4 Quattro Transmission Filters

Upgrade Audi A4 Quattros with top-quality Transmission Filters parts, including 3 OEM and aftermarket selections for your 2021 model.

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$89.33

AT FILTER KIT

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$86.26

AT Filter

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$77.08

AT FILTER

In-Demand Oil Filters for 2021 Audi A4 Quattros

Select from 14 premium Oil Filters parts for your 2021 Audi A4 Quattro, with prices ranging from $8.31 to $43.49.

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$12.49

Carquest Premium oil filters are built for durability, utilizing enhanced components to protect engines for the extended drain intervals of modern vehicles using conventional or synthetic lubricants. Our oil filters are built with synthetic blend media that provides 2X the capacity and up to 10,000 miles of protection. Carquest Premium filters feature silicone sealing gaskets for better performance in extreme temperatures. Carquest Premium oil filters meet or exceed original equipment (O.E.) specifications and meet the requirements for maintaining a new vehicle warranty.

Product Features:

Protection for up to 10,000 miles
Synthetic blend media provides 99.5% efficiency at 20 microns and 2X capacity vs. Standard filters
Solid metal end caps are designed to be long lasting
Silicone anti-drain back valve for engine start-up protection
Heavy-duty steel baseplate provides additional strength to resist leakage
Heavy gauge steel canister withstands high pressure operating conditions
Silicone sealing gasket performs better in extreme temperature conditions and longer drain intervals (silicone gasket is new feature introduced as a running change)
Meets requirements for maintaining new vehicle warranties

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$8.99

Direct replacement – this engine oil drain plug is designed to match the fit and function of an original equipment plug on specified vehicles.
Ideal solution – engineered to replace a missing or damaged plug and help ensure a secure seal
Durable construction – designed and manufactured to strict specifications for reliable performance
Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience

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$16.99

FRAM Titanium advanced high-flow synthetic oil filters offer ultimate engine protection for up to 20,000 miles (32,000 kilometers). Engineered with premium synthetic blend media, FRAM Titanium provides over 99% dirt trapping efficiency.

Product Features:

Proven protection for up to 20,000 miles
Perfect Seal Gasket gives extended durability and temperature protection
Includes gaskets and O-rings Manufactured to endure the high pressures and high temperatures in today’s engines

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$14.99

Protection for up to 10,000 miles
Synthetic blend media provides 99.5% efficiency at 20 microns and 2X capacity vs. Standard filters
Solid metal end caps are designed to be long lasting
Silicone anti-drain back valve for engine start-up protection
Heavy-duty steel baseplate provides additional strength to resist leakage
Heavy gauge steel canister withstands high pressure operating conditions
Silicone sealing gasket performs better in extreme temperature conditions and longer drain intervals (silicone gasket is new feature introduced as a running change)
Meets requirements for maintaining new vehicle warranties

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$11.99

FRAM Drive is the perfect oil filter for everyday driver. Designed with OE grade synthetic blend media and compatible with both conventional and synthetic oil types, FRAM Drive keeps engine protected for up to 7,500 miles (12,000 kilometers). FRAM Drive is engineered to withstand high temperatures and endure working pressures common in todays engines.

Product Features:

Proven protection for up to 7,500 miles
Engineered for use with synthetic or conventional motor oil
Precision Relief Valve provides consistent oil flow, even in cold conditions
Designed for everyday drivers who perform oil changes at OE (original equipment) recommended intervals

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$15.99

FRAM FORCE oil filter is engineered to provide advanced protection for all drivers that experience extreme driving conditions. Coated with a rough non-slip textured surface, Total Grip allows for easy install and removal. The silicone anti-drain back valve ensures safe engine startups, extending the life of the oil filter. Its synthetic blend media provides 99% filtering efficiency and protects up to 15,000 miles (24,000 kilometers).

Product Features:

Proven protection for up to 15,000 miles
Synthetic blend media provides 99% dirt holding capacity
Designed for use with synthetic or conventional motor oils
Includes gaskets and O-rings Manufacturerd to endure the high pressures and high temperatures in today’s engines

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$11.29

Direct replacement – this engine oil drain plug is designed to match the fit and function of an original equipment plug on specified vehicles.
Ideal solution – engineered to replace a missing or damaged plug and help ensure a secure seal
Durable construction – designed and manufactured to strict specifications for reliable performance
Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience

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$43.49

Direct replacement – this engine oil drain plug is designed to match the fit and function of an original equipment plug on specified vehicles.
Ideal solution – engineered to replace a missing or damaged plug and help ensure a secure seal
Durable construction – designed and manufactured to strict specifications for reliable performance
Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience

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$33.49

Ideal replacement – this engine oil filter cover is a direct replacement for the original equipment filter cover.
Durable construction – this part is specifically designed to withstand extreme underhood temperatures to resist cracking and leaking.
Quality tested – this part has undergone extensive testing to ensure a quality fit and long service life
Easy to install – no special tools required

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$13.99

High performance design for outstanding filtration
High-efficiency media with uniform pleats
Allows for high oil flow rates
Ideal for high-end synthetic motor oil

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$11.99

Carquest Standard oil filters are designed to meet the original equipment (O.E.) specifications and the requirements for maintaining new vehicle warranties. Our oil filters use nitrile sealing gaskets and solid steel baseplates to prevent oil leaks. Carquest Standard oil filters feature cellulose media for increased efficiency at capturing dirt and debris. Each Carquest Standard oil filter is built with rugged components for durability and utilizes multifiber, high-density media for optimal engine protection up to 5,000 miles.

Product Features:

Protection for up to 5,000 miles
Cellulose media provides 95.1% efficiency at 20 Microns for increased engine protection
Nitrile anti-drain back valve for engine start-up protection
Lathe cut nitrile sealing gasket prevents leaks
Double fluted spiral wound center tube allows maximum flow and provides additional strength
Solid steel baseplate provides additional strength to resist leakage
Meets requirements for maintaining new vehicle warranties

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$11.04

Oil Drain Plug

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$9.02

Oil Drain Plug

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$8.31

Oil Drain Plug

Most Sold 2021 Audi A4 Quattro Air Filters

Explore our best-selling Audi parts for the 2021 A4 Quattro among 1 OEM and aftermarket options starting from $26.99.

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$26.99

Highest degree of dirt separation and high mechanical stability
Perfectly adapted in form and function to the widest possible range of installation situations
Filter even the smallest particles out of the intake air
Enables an optimum composition of the fuel-air ratio and ensures that the engine performance is consistent
High dust holding capacity ensures reliability throughout the entire service interval

Top-Rated Filters and PCVs Brands For Your 2021 Audi A4 Quattro

Shop for the best-rated brands offering Filters and PCVs and other products for your 2021 Audi A4 Quattros. Below you’ll find some of our best rated Filters and PCVs from Carquest Premium and Dorman, and more. Filters and PCVs from these brands that fit a 2021 A4 Quattro start at just $8.99 and are rated as high as 4 stars. OEM and aftermarket Filters and PCVs don’t get more top quality, durable, and affordable than from the brands below.

Popular Carquest Premium 2021 Audi A4 Quattro Filters and PCVs

When it comes to maintaining or upgrading your 2021 Audi A4 Quattro, using quality Filters and PCVs is essential to ensure durability and a perfect fit. Carquest Premium ticks all of those boxes. We offer a wide selection of Carquest Premium Filters and PCVs, specifically designed for the 2021 Audi A4 Quattro. With over 4 Carquest Premium brand Filters and PCVs in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $12.49, with an average price of just $21.24. Plus, with over 25 customer reviews and an average rating of 4 stars, you can trust that our Carquest Premium Filters and PCVs will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.

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$21.99

(1)

Cabin Air Filter

“Ok”

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$14.99

This product is not rated

Oil Filter: Ideal for Synthetic Oil, Protection up to 10,000 Miles

“”

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$35.49

(1)

Cabin Air Filter: Cleans Air by Reducing Pollen and Dust

“Fits perfectly”

Popular Dorman 2021 Audi A4 Quattro Filters and PCVs

Dorman auto parts is one of the highest quality Filters and PCV brands in the market. Any 2021 Audi A4 Quattro owner should feel confident when installing genuine Dorman parts in their vehicle. To ensure the best fit and performance for your 2021 A4 Quattro, Advance Auto Parts carries a full inventory of 5 Dorman Filters and PCVs. Plus you will be keeping your Audi in peak condition while saving money because prices on these Dorman Filters and PCVs range from $8.99 to $43.49, plus, with more than 3 customer reviews and an impressive 4 stars average rating, you can be confident the Fram Filters and PCVs below will deliver on both quality and value.

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$33.49

This product is not rated

Oil Filter Cap – Plastic

“”

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$11.29

This product is not rated

EZ Drain Engine Oil Drain Plug: TR16X3 Thread, 1 Pack

“”

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$43.49

This product is not rated

EZ Drain Engine Oil Drain Plug: TR16X3 Thread, 1 Pack

“”

FAQs for 2021 Audi A4 Quattro Filters and PCVs

Which Filters and PCVs are best-sellers for 2021 Audi A4 Quattros?

Out of 22 Filters and PCVs that fit 2021 Audi A4 Quattros, the following parts are the top sellers:

EZ Drain Engine Oil Drain Plug: TR16X3 Thread, 1 Pack (11826776) – $8.99
Cartridge Oil Filter: Ideal For Synthetic Oil Protection to 20,000 mile (12416592) – $16.99
Oil Filter: Ideal for Synthetic Oil, Protection up to 10,000 Miles (12098178) – $14.99

What’s the price range for 2021 Audi A4 Quattro Filters and PCVs?

Filters and PCV prices for the 2021 Audi A4 Quattro start at $8.31 and go up to $89.33 for the most premium parts.

What’s the average price of a Filters and PCV for a 2021 Audi A4 Quattro?

The average price for Filters and PCVs for the 2021 Audi A4 Quattro is $28.21. Keep in mind the variety of part types within our Filters and PCV category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Filters and PCVs for other Audi A4 Quattro model years?

Yes, we currently carry Filters and PCVs for 29 model years of Audi A4 Quattros between 1996 and 2025. Filters and PCVs are bought most frequently for the following model years: 2023, 2022, 2020, 2019, 2018, 2017, 2016, 2015, and 2014.

What are the cheapest Filters and PCVs for my 2021 Audi A4 Quattro?

The cheapest 2021 Audi A4 Quattro Filters and PCVs we carry in stock are:

Oil Drain Plug (12613648) – $8.31
EZ Drain Engine Oil Drain Plug: TR16X3 Thread, 1 Pack (11826776) – $8.99
Oil Drain Plug (12613445) – $9.02
Oil Drain Plug (12129676) – $11.04
EZ Drain Engine Oil Drain Plug: TR16X3 Thread, 1 Pack (11870046) – $11.29

What are the top-rated Filters and PCVs that fit the 2021 Audi A4 Quattro?

Out of 168 reviews by customers, our 2021 Audi A4 Quattro Filters and PCVs have an average customer rating of . These are some of the highest-rated Filters and PCV types for the 2021 Audi A4 Quattro and their top-rated products:

Cabin Air Filters
- Cabin Air Filter (10705418) – $21.99
- Cabin Air Filter: Cleans Air by Reducing Pollen and Dust (11981205) – $35.49
Oil Filters
- Cabin Air Filter (10705418) – $21.99
- Cabin Air Filter: Cleans Air by Reducing Pollen and Dust (11981205) – $35.49

What types of Filters and PCVs do you sell for my 2021 Audi A4 Quattro?

As of 2/5/25, these are some of the most in-demand types of Filters and PCVs for a 2021 Audi A4 Quattro:

Can I get help with 2021 Audi A4 Quattro Filters and PCV orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Audi Filters and PCVs and more.

What is your return policy for Audi A4 Quattro Filters and PCVs?

Advance Auto Parts keeps returns simple. For new Audi A4 Quattro Filters and PCVs and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

2021 Audi A4 Quattro Filters and PCVs

Purolator ONE – Advanced Filtration Engine Air Filter: Ideal for Full Synthetic Oil, Protects up to 20,000 miles (Part No.A47039)

Mann-Filter – Premium OE Air Filter: OE Quality, Reliability & Fit for European Nameplates (Part No.C 26 168)

Carquest Premium – Engine Air Filter 87972: Removes up to 99% of Dirt & Debris (Part No.87972)

Dorman – Standard Engine Oil Drain Plug: M14-1.50 Thread, 0.74 " Head, 1 Pack (Part No.921-131)

Dorman – Pilot Point Engine Oil Drain Plug: M14-1.50 Thread, 19 mm Head, 1 Pack (Part No.090-171.1)

Rein – OIL DRAIN PLUG (Part No.A6110436613RIN)

Dorman – Oil Filter Cap – Plastic (Part No.917-053)

Dorman – Oil Filter Cap – Plastic (Part No.921-169)

Dorman – Help – Oil Filter Cap – Nylon (Part No.917-049CD)

Carquest Premium – Cabin Air Filter: Cleans Air by Reducing Pollen and Dust (Part No.89774)

Bosch – HEPA Premium Cabin Air Filter (Part No.6025C)

Carquest Premium – Cabin Air Filter: Cleans Air by Reducing Pollen and Dust (Part No.93855)

Rein – Transmission Filter (Part No.RTF0011)

Beck/Arnley – Transmission Filter Kit (Part No.044-0302)

Meyle – AT Filter (Part No.J500084185MEY)

Rein – Transmission Filter (Part No.RTF0012)

Elring – AT Filter (Part No.J5000311192ELR)

Carquest Premium – Automatic Transmission Filter Kit: Sump, Original Equipment Fit, Form And Function, 1 Pack (Part No.96029)

Pro-King – Automatic Transmission Filter Kit (Part No.FK-352)

PurolatorBOSS – Oil Filter: Ideal for Full Synthetic Oil, Protects up to 20,000 miles (Part No.PBL35895)

Carquest Premium – Lube Spin-on (Part No.84561HD)

K&N – Premium Oil Filter: Ideal for Synthetic & Conventional Oil, Protects Your Engine (Part No.HP-7038)

Mann-Filter – Spin On Oil Filter: Ideal For Any Type of Oil (Part No.W 940/25)

Vaico – Vaico Crankcase Vent Valve (Part No.B2017461458VCO)

Vaico – Crankcase Vent Valve (Part No.B2017242136VCO)

APA/URO Parts – Crankcase Vent Valve (Part No.B2017242142APA)

Kayser – Crankcase Vent Valve (Part No.B2017242137KAY)

Vaico – Oil Separator (Part No.B20181890042VCO)

Elring – Oil Separator Gasket (Part No.B2015816547ELR)

Carquest Premium – Cabin Air Filter: Cleans Air by Reducing Pollen and Dust (Part No.93855)

Carquest Premium – Cabin Air Filter (Part No.90220P)

Fram Drive – Cabin Air Filter: Up to 12 months or 12,000 mile protection (Part No.FDC12211)

Worldpac – AT FILTER KIT (Part No.J50104140860FEB)

Vaico – AT Filter (Part No.J50002596491VCO)

Worldpac – AT FILTER (Part No.J50002596489FEB)

Carquest Premium – Oil Filter: Ideal for Synthetic Oil, Protection up to 10,000 Miles (Part No.94024)

Dorman – EZ Drain Engine Oil Drain Plug: TR16X3 Thread, 1 Pack (Part No.090-090CD)

FRAM Titanium – Cartridge Oil Filter: Ideal For Synthetic Oil Protection to 20,000 mile (Part No.FS11784)

Carquest Premium – Oil Filter: Ideal for Synthetic Oil, Protection up to 10,000 Miles (Part No.95154)

FRAM Drive – Cartridge Oil Filter: Ideal for Conventional Oil, Protection up to 7,500 miles (Part No.FD11784)

FRAM Force – Cartridge Oil Filter: Ideal For Any Type of Oil Protection to 15,000 miles (Part No.FF11784)

Dorman – EZ Drain Engine Oil Drain Plug: TR16X3 Thread, 1 Pack (Part No.090-090.1)

Dorman – EZ Drain Engine Oil Drain Plug: TR16X3 Thread, 1 Pack (Part No.090-090)

Dorman – Oil Filter Cap – Plastic (Part No.921-169)

K&N – Premium Oil Filter: Ideal for Synthetic & Conventional Oil, Protects Your Engine (Part No.HP-7038)

Carquest Standard – Oil Filter: Ideal for Conventional Oil, Protection up to 5,000 Miles (Part No.R95154)

Dorman – Oil Drain Plug (Part No.A61101669329DOR)

APA/URO Parts – Oil Drain Plug (Part No.A6110571112APA)

Burgaflex – Oil Drain Plug (Part No.A6110571112BUR)

Mann-Filter – Engine Air Filter for Optimal Performance and Clean Intake Air (Part No.C32130)