Audi 4000 Filters and PCVs

Carquest Premium Fuel Spin-on Filters protect your engine and fuel system by removing dirt, rust, and other impurities from the fuel before it reaches your engine fuel system. These filters effectively remove contaminants to prevent clogging and damage to fuel injectors, pumps and other critical engine components. The spin-on design screws directly onto a mounting head, allowing for easy servicing and replacement. By keeping the fuel clean, these filters help ensure optimal combustion, improve engine efficiency, and reduce emissions. Carquest Premium Fuel Spin-on Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:

• Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
• Made in USA

A clogged fuel filter could lead to contaminants in the engine fluid ¿ a common source of engine system failures. Protect fuel pumps and fuel injectors from these costly malfunctions. A Purolator® Fuel Filter scrubs fuel clean of dirt, rust and other contaminants for smooth and efficient engine performance. Removes water from the fuel system. Prevents rust and corrosion in your engine. Keeps fuel contaminant free. Replace annually for peak performance. Meets or exceeds OE specifications

Product Features:

• Removes water from the fuel system
• Prevents rust and corrosion in your engine
• Keeps fuel contaminant free
• Replace annually for peak performance
• Meets or exceeds OE specifications

This high-volume accessory is designed to promote efficient fuel injection performance. FRAM offers exceptional domestic and import fuel filter coverage to meet the needs of virtually all engine configurations.

Product Features:

• Designed for use in modern fuel injection systems and with oxygenated fuels

K&N premium oil filters are meticulously engineered to offer outstanding filtration and engine protection. Designed to operate with all synthetic, conventional, and blended motor oils, K&N’s pleated synthetic-blend filtration media helps to shield your engine from contaminants and ensure a consistent flow of oil. The heavy-duty canister is engineered to be exceptionally durable, and a one-inch welded hex nut can be used for quick and easy filter removal. Each filter is specifically designed to withstand the service intervals recommended by vehicle manufacturers.

Product Features:

• HIGH FLOW RATES: Designed to provide exceptional flow rates and a consistent flow of oil to your engine
• VERSATILE COMPATIBILITY: Designed to operate with all synthetic, conventional, and blended motor oils
• PROTECT YOUR ENGINE: Pleated synthetic-blend filtration media removes most harmful contaminants
• EXTENSIVELY TESTED: Laboratory tested to ensure excellent capacity and burst strength
• EASY TO REMOVE: Fast and easy Wrench-Off removal
• HEAVY-DUTY CONSTRUCTION: Heavy-duty canister for outstanding durability
• HIGH CAPACITY: Withstand the longer service intervals now recommended by some vehicle manufacturers

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

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

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

K&N premium oil filters are meticulously engineered to offer outstanding filtration and engine protection. The heavy-duty canister is engineered to be exceptionally durable, and a one-inch welded hex nut can be used for quick and easy filter removal. Each filter is specifically designed to withstand the service intervals recommended by vehicle manufacturers.

Product Features:

• HIGH FLOW RATES: Designed to provide exceptional flow rates and a consistent flow of oil to your engine
• VERSATILE COMPATIBILITY: Designed to operate with all synthetic, conventional, and blended motor oils
• PROTECT YOUR ENGINE: Pleated synthetic-blend filtration media removes most harmful contaminants
• EXTENSIVELY TESTED: Laboratory tested to ensure excellent capacity and burst strength
• EASY TO REMOVE: Fast and easy Wrench-Off removal
• HEAVY-DUTY CONSTRUCTION: Heavy-duty canister for outstanding durability
• HIGH CAPACITY: Withstand the longer service intervals now recommended by some vehicle manufacturers

Carquest Premium Fuel/Water Separator Filters remove water and other impurities from the fuel before it reaches your engine fuel system. These filters effectively separate water from the fuel, preventing corrosion and damage to fuel injectors, pumps and other critical engine components. By keeping the fuel clean and water-free, these filters help ensure optimal combustion, improve engine efficiency, and reduce emissions. Carquest Premium Fuel/Water Separator Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:

• Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
• Application engineered media which aids in stripping water in diesel fuels
• Patent pending drain, metal end caps, which hold media in place
• Rust resistant can, ensuring no leakage from inside
• Made in USA

AGS ACCUFIT Oil Drain Plug is a high-coverage/low-part number program that covers up to 93% of all vehicles on the road, including domestic, European, Japanese, British, and Korean models, while reducing inventory and associated costs by 80%. Reducing stocked part numbers to just 13 and the superior quality built-in features make ACCUFIT your number one choice for oil drain plugs. Easy Install – Finger-grip wing for ease of installation. All plugs have 14mm hex – just one wrench works for all! Hi-Temp Gasket – Red hi-temp gasket for max sealing protection. Easy ID – Thread size etched on each plug. Rust Protection – Black oxide coating for rust and corrosion protection. Avoid Cross-Threading – Pilot-point tip to avoid cross-threading during installation.

Product Features:

• Easy Install – Finger-grip wing for ease of installation
• All plugs have 14mm hex – just one wrench works for all
• Hi-Temp Gasket – Red hi-temp gasket for max sealing protection

Constructed with 100-percent polyurethane boxed frame, this high flow, oiled OE replacement performance filter will outflow the stock filter for improved horsepower and torque. Five layers of progressively finer mesh cotton gauze media provide maximum airflow for best performance results. Washable and reusable for multiple cleaning cycles, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Integrated urethane bump seal insures tight, no leak seal over the life of the filter.

Product Features:

• Pre-oiled
• Rounded Open Pleats
• Progressive Bump Seal
• Full Urethane Housing

Constructed with 100-percent polyurethane boxed frame, this non-oiled OE replacement filter provides years of hassle free service. Three Layers of Progressive Synthetic (Dry) Media for Maximum Convenience. Washable and reusable for multiple cleaning cycles, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Integrated urethane bump seal insures tight, no leak seal over the life of the filter.

Product Features:

• Outflows Stock Paper Filters For Improved Horsepower and Torque
• 100% Polyurethane Frame On All Sides For Extra Long Filter Life
• Washable And Reusable For Multiple Cleaning Cycles
• Progressive Bump Seal Design For A Perfect Fit

Carquest Standard engine air filters are designed to remove airborne contaminants and optimize engine performance in all driving conditions. Each air filter features cured filter media that increases tensile strength, allowing the filter to maintain high-pressure requirements without collapse. Carquest Standard air filters use a polyurethane construction that provides higher tear strength and more structural support. Our Carquest Standard air filters meet original equipment (O.E.) standards and fulfill the requirements for maintaining a new vehicle warranty.

Product Features:

• Precision engineered for OE fit, form and function
• Durable polyurethane construction maintains structural support
• Cured filter media increases tensile strength, allowing filter to maintain high-pressure requirements without collapse

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

Constructed with 100-percent polyurethane boxed frame, this high flow, oiled OE replacement performance filter will outflow the stock filter for improved horsepower and torque. Five layers of progressively finer mesh cotton gauze media provide maximum airflow for best performance results. Washable and reusable for multiple cleaning cycles, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Integrated urethane bump seal insures tight, no leak seal over the life of the filter.

Product Features:

• High Flow For Increased Performance
• Progressive 5 Layer Cotton Gauze Material
• Deep Cotton Pleats for Increased Flow
• Progressive Bump Seal For Leak-Free Seal

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

Constructed with 100-percent polyurethane boxed frame, this non-oiled OE replacement filter provides years of hassle free service. Three Layers of Progressive Synthetic (Dry) Media for Maximum Convenience. Washable and reusable for multiple cleaning cycles, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Integrated urethane bump seal insures tight, no leak seal over the life of the filter.

Product Features:

• Outflows Stock Paper Filters For Improved Horsepower and Torque
• 100% Polyurethane Frame On All Sides For Extra Long Filter Life
• Washable And Reusable For Multiple Cleaning Cycles
• Progressive Bump Seal Design For A Perfect Fit

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.

Product Features:

• Multi-fiber, high dirt trapping media
• Traps up to 99% of dirt, soot and other damaging debris (based on ISO 5011 on A24278)
• Replace every 12 months or 12,000 miles (refer to your owners manual for recommended maintenance schedules for your vehicle)
• A new air filter can improve acceleration by up to 11% (U.S. DOE study)
• Helps prevent engine wear

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

Blocks dust, dirt, bacteria and pollution that can interrupt engine performance. Designed to offer consistent air flow to help increase horsepower and acceleration

Product Features:

• Prescription filtration provides stronger resistance against moisture and collapse from rain and snow
• Optimum pleat count provides a higher filtration function
• Superior protection for vehicles in dusty or dirty environments, snow, high heat/humidity and frequent trips less than 10 miles