from

$23.99

Product Features:

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

from

$68.99

K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N’s No-Hassle Lifetime Limited Warranty. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N’s most popular product!

Product Features:

REUSABLE K&N FILTER SAVES YOU MONEY: A K&N washable, reusable air filter will save you up to $125 vs. purchasing multiple disposable filters (compared to MSRP in USD of corresponding OE filters for 200,000 miles of highway driving)
CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (5 years based on the average miles driven per year of 15,000 miles)
RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime
REDUCES WASTE: Over 200 million disposable air filters and their packaging waste wind up in landfills each year- reusable filters help reduce waste in our landfills
ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
EASY INSTALLATION: K&N Air Filters are pre-oiled and ready to drop into your factory air box- they are one of the easiest and most cost-effective vehicle upgrades for quick performance gains
4 LAYERS OF PROTECTION: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminants
ULTIMATE LONGEVITY: No-hassle lifetime limited warranty on stock replacement K&N air filters- limitations apply

from

$143.99

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

from

$32.99

Fuel filters use media paper recently developed for the OEM’s to ensure premium filtration dependability & performance. Keeps smaller contaminants in the system out of the engine and other fuel delivery components. Provides the highest in fuel cleansing efficiency and capacity by trapping harmful contaminants such as dirt, water, scale and rust before they reach your vehicle’s fueling system.

Product Features:

Replacing the fuel filter provides two benefits. First, the fuel filter protects the injectors from debris that cause damage and clogging. Second, a new fuel filter has less restriction, preventing the fuel pump from working too hard.
Manufactured to a strict quality standards with 98% efficiency at a 10 micron rating.
Provides maximum fuel system protection.
Designed to meet or exceed Original Equipment specifications
Protects the injectors from debris that cause damage and clogging.
Provides less restriction preventing the fuel pump from working too hard.
Superior materials, design and construction ensure CARQUEST fuel filters provide excellent performance under all types of operating conditions.

from

$59.99

Fuel filters use media paper recently developed for the OEM’s to ensure premium filtration dependability & performance. Keeps smaller contaminants in the system out of the engine and other fuel delivery components. Provides the highest in fuel cleansing efficiency and capacity by trapping harmful contaminants such as dirt, water, scale and rust before they reach your vehicle’s fueling system.

Product Features:

Replacing the fuel filter provides two benefits. First, the fuel filter protects the injectors from debris that cause damage and clogging. Second, a new fuel filter has less restriction, preventing the fuel pump from working too hard.
Manufactured to a strict quality standards with 98% efficiency at a 10 micron rating.
Provides maximum fuel system protection.
Designed to meet or exceed Original Equipment specifications
Protects the injectors from debris that cause damage and clogging.
Provides less restriction preventing the fuel pump from working too hard.
Superior materials, design and construction ensure CARQUEST fuel filters provide excellent performance under all types of operating conditions.

from

$39.99

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.

from

$8.99

With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

Product Features:

Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.

from

$40.99

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.

from

$37.99

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

Product Features:

Direct replacement.
Superior Media Filter.
Produced with high quality materials to ensure maximum life and a smooth ride.
Matches original equipment design specifications.

from

$52.99

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 OE designs. Every component either matches or improves on the OE design to ensure fast, easy installation, superior performance and reliability.

Product Features:

Application matched component to ensure the system can be returned to like new condition.
Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.

from

$5.99

These oil drain plug gaskets are designed to specific sizes and standards for reliable replacement at every oil change.

Product Features:

Direct replacement – these engine oil drain plug gaskets are made to match the fit and performance of the original equipment components
Restores functionality – built to restore a proper seal
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

from

$1.49

These oil drain plug gaskets are designed to specific sizes and standards for reliable replacement at every oil change.

Product Features:

Direct replacement – these engine oil drain plug gaskets are made to match the fit and performance of the original equipment components
Restores functionality – built to restore a proper seal
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

from

$9.99

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:

Engineered for protection for up to 10,000 miles when used with the appropriate motor oil
Synthetic blend media provides 99.5% efficiency at 20 microns and 2X capacity vs. Standard filters
Silicone sealing gasket performs better in extreme temperature conditions and longer drain intervals (silicone gasket is new feature introduced as a running change)

from

$4.49

CARQUEST Standard Oil Filters give you the level of quality and application you have come to expect from the CARQUEST name.

Product Features:

94.1% efficiency rating at 20 microns
Meets new car warranty requirements
Precision coil spring relief valve
Nitrile anti-drainback valve for engine start-up protection
Metal end caps
Cellulose/synthetic blended media
Internally lubricated gasket

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$57.99

For European vehicles, A.P.A. manufactures the URO Parts brand of quality replacement parts, which meet or exceed OEM specifications. URO Parts components are ideal for both professional and DIY vehicle repair, and are often the exclusive aftermarket alternative to overpriced ¿Genuine¿ components. By reducing deferred maintenance with URO Parts, you will increase the bottom line of your business. With its URO Premium line, A.P.A. offers problem-solving upgraded components that are superior to failure-prone OEM parts in design and/or materials. A.P.A. is so confident in the longevity and reliability of URO Premium products, they’re covered by an unlimited mileage, . URO Parts also specializes in accurate reproduction parts for classic vehicles, including a huge variety of items that are no longer available from the dealer.

Product Features:

Guaranteed fitment
Manufactured to OE oil filter housing dimensions for easy bolt-on installation and reliable sealing
High-strength heat and oil-resistant materials ensures long lifespan
Quality control at each step of production

from

$3.99

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

from

$6.79

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

from

$3.99

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

from

$289.99

Positive crankcase ventilation (PCV) valves are designed to recirculate combustion fumes from the crankcase into the intake so they can be burned again, resulting in lower emissions. Carquest Premium PCV valves are built to meet or exceed original equipment (O.E.) specifications and undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium PCV valves are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:

Designed to meet or exceed OE specifications for fit, form and function
O-rings or seals are included if required for installation
Extensive design validation testing and 100% end-of-line tested
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

from

$88.99

For European vehicles, A.P.A. manufactures the URO Parts brand of quality replacement parts, which meet or exceed OEM specifications. URO Parts components are ideal for both professional and DIY vehicle repair, and are often the exclusive aftermarket alternative to overpriced ¿Genuine¿ components. By reducing deferred maintenance with URO Parts, you will increase the bottom line of your business. With its URO Premium line, A.P.A. offers problem-solving upgraded components that are superior to failure-prone OEM parts in design and/or materials. A.P.A. is so confident in the longevity and reliability of URO Premium products, . URO Parts also specializes in accurate reproduction parts for classic vehicles, including a huge variety of items that are no longer available from the dealer.

Product Features:

Guaranteed fitment
Replaces old plugged or sticking crankcase vent valves
Restores proper air/fuel ratio and engine performance by evacuating unburned gasoline vapors from the crankcase into the intake
Reduces rate of oil buildup in intake
Manufactured to OE dimensions for easy installation and original appearance
Quality valve materials resist intense engine heat and vaporized oil

Audi S4 Filters and PCVs

Top Audi S4 Filters and PCVs Categories

Essential Audi S4 Filters and PCVs

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

K&N – Engine Air Filter: Washable & Reusable, Engineered to Increase Air Flow and Performance (Part No.33-2125)

Dorman – Oil Filter Cap – Plastic (Part No.917-055)

Carquest Premium – 14 x 1.5 mm Inlet – 12 x 1.5 mm Outlet Fuel Filter (Part No.86156)

Carquest Premium – 3 Line (5/16" Inlet – 5/16" Outlet, 3/8" Vapor) Metal In-Line Fuel Filter (Part No.86831)

Rein – Transmission Filter (Part No.RTF0012)

Victor Reinz – Engine Oil Filter Adapter Gasket (Part No.71-17540-00)

Rein – Transmission Filter (Part No.RTF0011)

Rein – Transmission Filter (Part No.RTF0010)

Wells Vehicle Electronics – Fuel Injection Pressure Regulator 5G1568 (Part No.5G1568)

Dorman – Copper Oil Drain Plug Gasket (Part No.095-158CD)

Dorman – Oil Drain Plug Gasket – Aluminum Fits M14 (Sold by each) (Part No.095-147)

Carquest Premium – Oil Filter: Ideal for Synthetic Oil, Protection up to 10,000 Miles (Part No.84329)

Carquest Standard – Oil Filter (Part No.R85342)

URO Parts – Oil Filter Housing (Part No.06E115405K)

Dorman – Standard Engine Oil Drain Plug: M14-1.50 Thread, 19 mm Head, (sold by each) (Part No.090-182)

Dorman – Standard Engine Oil Drain Plug: M14-1.50 Thread, 19 mm Head, 1 Pack (Part No.65407)

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

Carquest Premium – PCV Valve (Part No.PCC1486)

URO Parts – Crankcase Vent Valve (Part No.06E103547AB)

Audi S4 Filters and PCVs Categories

Helping You Find the Right Filters and PCVs for Your Audi S4

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