K&N® 33-2001 - 33 Series Panel Air Filter

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K&N® - 33 Series Panel Air Filter
K&N® - 33 Series Panel Air FilterK&N® - 33 Series Panel Air Filter Installation InstructionsK&N® - Cleaning GuideK&N® - WarrantyK&N® - Air Filter Overview 602x420Made In USAK&N Authorized Dealer
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Product Details

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K&N Air Filters

33 Series Panel Air Filter (33-2001) by K&N®. Air Filter Color: Red. Filter Material: Cotton Gauze. Filter Re-Oiling Amount: 1.25 oz (37 ml). Height: 1.563" (40 mm). Outside Length: 13.125" (333 mm). Outside Width: 5" (127 mm). Top Style: Open. Includes: 1 Air Filter. K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority of vehicles on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N. See applicable instruction sheet for details. Our stock replacement air filters for street vehicles are covered by our famous K&N Million-Mile Limited Warranty and will be the last air filter your vehicle will ever need.


  • Improves engine airflow
  • Increases horsepower and acceleration
  • Superior filtration without reduced airflow
  • Reduces maintenance costs
  • Washable and reusable
  • Get up to 50,000 miles between cleanings under normal driving conditions
  • Emissions legal in all States
  • Backed by K&N's Million Mile Limited Warranty

Most air filters on the market are a compromise. Many high-performance filters deliver better airflow, but sacrifice filtering ability and engine protection in the process. OEM filters, which are usually made of paper, filter adequately but at the expense of airflow. And airflow decreases as these air filters become dirty. Not so the K&N air filter. K&N air filters increase airflow without decreasing filtration ability, and the increased airflow remains consistent throughout the filter's service interval. The secret is in the K&N filter's construction.

K&N's initial goal was to develop a filter that would deliver increased airflow during dirty, dusty off-road racing conditions. Increased airflow improves the efficiency of the combustion process, increasing horsepower and torque. But just increasing airflow without ensuring adequate filtration under those conditions would result in a ruined engine. K&N's solution was a filter design consisting of 4 to 6 layers of cotton gauze sandwiched between two aluminum wire screens. The cotton is then treated with a specially formulated grade of oil that causes tackiness throughout the cotton’s microscopic strands. The resulting K&N filter not only delivers increased airflow while trapping dirt particles that could harm your engine, that level of airflow is maintained even as the filter gets dirty. The layers of oiled cotton fibers in the K&N filter trap dirt particles that are smaller than the holes in the filter media. The thickness of the layers also allows the K&N filter to trap dirt and dust on many levels, trapping more dirt without decreasing airflow. Contrast this with a paper filter that only traps dirt on its surface; as the surface area becomes clogged, the airflow rate goes down.

Each K&N air filter is custom designed to fit into your existing factory air box. The K&N filter is economical because it's the last air filter you'll have to buy for your car. It can be washed and reused many times, and since you can usually drive up to 50,000 miles between servicing, you won't have to clean it very often. And every K&N filter is backed by K&N's Million Mile Limited Warranty. By the way, check the CARiD reviews and read what the customers think of K&N porducts.

K&N® is the inventor and leading innovator of reusable cotton gauze filter technology for automotive applications. The first K&N filter was conceived for racing over 40 years ago and a performance enthusiast mindset continues today throughout all levels of the company. K&N is the sales and brand leader for performance filters, including an extensive line of factory replacement filters and performance air intake kits. The company actively promotes the environmental, economical and performance advantages of long-life reusable cotton gauze filters.

Part Number:

Warranty Information

Find out everything you need to know about the product warranty

K & N O/E Replacement Air Filters and Air Intake Systems purchased from Authorized Dealers are backed by a Million Mile Limited Warranty when used primarily on paved roads and on vehicles for which they were designed. If one of these products ever fails to provide complete satisfaction, K&N will replace it.

K&N Aftermarket Air Filters should be cleaned every 50,000 miles for normal highway use, more often in dusty conditions. Cleaning should be done with K&N cleaner and air filter oil (or comparable air filter cleaner and oil). Use of compressed air, or chemicals not specifically designed to clean and re-oil cotton air filters (i.e. gasoline, transmission fluid, motor oil, lightweight oil, or diesel fuel) will void the warranty. Any damaged, abused or modified K&N Air Filters will not be warranted.

Any K&N product returned to K&N will need a Return Goods Authorization number and must be sent at customers' expense along with proof of purchase.

Any defective K&N Air Filter properly returned to K&N will be replaced. K&N reserves the right to determine whether the terms of the warranty, set out above, have been properly complied with. In the event that the terms are not complied with, K&N shall be under no obligation to honor this warranty. K&N will not be responsible for any indirect, consequential, special, contingent, or other damages.

We want to make sure that when you buy a K&N Lifetime Air Filter or Air Intake System, you can be confident your vehicle's warranty will not be impacted. We also want you to feel confident that even if you experience difficulties with a dealership repair department, we will step-in and resolve the issue, so you won't have to. Therefore, K & N makes the following Pledge: K&N pledges to their customers that they will not be taken advantage of and charged for a repair due to a manufacturer warranty denial blamed on the presence of a K&N product.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

Vehicle Fitment

This part is compatible with 104 vehicle(s)
Year Make Model Fitment Notes:
1992 Audi 80 / 80 Quattro
1992 Eagle Premier
1992 Volkswagen Jetta
  • 1.6L
1991 Audi Coupe
1991 Audi 80 / 80 Quattro
1991 Audi 90 / 90 Quattro
1991 Eagle Premier
1991 Volkswagen Golf
  • 1.6L
1991 Volkswagen Jetta
  • 1.6L
1990 Audi Coupe
1990 Audi 80 / 80 Quattro
1990 Audi 90 / 90 Quattro
1990 Dodge Monaco
1990 Eagle Premier
1990 Volkswagen Golf
  • 1.6L
1990 Volkswagen Jetta
  • 1588 CC / 1780 CC / 1781 CC
1989 Audi 80
1989 Audi 90 / 90 Quattro
1989 Eagle Premier
1989 Volkswagen Golf
  • 1.6L
1989 Volkswagen Jetta
1988 Audi 80 / 80 Quattro
1988 Audi 90 / 90 Quattro
1988 Eagle Premier
  • 2.5L
1988 Volkswagen Golf
1988 Volkswagen Jetta
  • 1780 CC / 1781 CC
1987 Audi Coupe
  • 2.2L
1987 Audi 4000 / 4000 Quattro
1987 Volkswagen Golf
1987 Volkswagen Jetta
  • 1780 CC Generation II
1987 Volkswagen Quantum
1986 Audi Coupe
1986 Audi 4000 / 4000 Quattro
1986 Volkswagen Golf
1986 Volkswagen Jetta
  • 1.8L
1986 Volkswagen Quantum
1985 Audi Coupe
1985 Audi 4000 / 4000 Quattro
1985 Volkswagen Golf
1985 Volkswagen Jetta
  • Naturally Aspirated
1985 Volkswagen Quantum
  • 1.6L
1984 Audi Coupe
1984 Audi 4000 / 4000 Quattro
  • 2.2L
1984 Volkswagen Jetta
  • 1.8L
1984 Volkswagen Quantum
  • 1.6L
1984 Volkswagen Rabbit
  • 1.6L
1984 Volkswagen Vanagon
  • 1.6L
1983 Audi Coupe
1983 Audi 4000
  • 1.6L
1983 Fiat 124
1983 Volkswagen Jetta
  • 1.6L Naturally Aspirated
1983 Volkswagen Quantum
  • 1.6L / 2.2L
1983 Volkswagen Rabbit
  • CARB
1983 Volkswagen Rabbit / Rabbit Pick Up
  • 1.6L
1983 Volkswagen Vanagon
  • 1.6L
1982 Audi Coupe
1982 Audi 4000
  • 1.6L
1982 Audi 5000
  • 2.0L
1982 Fiat 124
1982 Volkswagen Jetta
  • 1.6L
1982 Volkswagen Quantum
  • 1.6L
1982 Volkswagen Rabbit
  • CARB
1982 Volkswagen Rabbit / Rabbit Pick Up
  • 1.6L
1982 Volkswagen Vanagon
  • 1.6L
1981 Audi Coupe
1981 Audi 4000
  • 2.2L
1981 Audi 5000
  • 2.0L
1981 Fiat 124
1981 Volkswagen Dasher
1981 Volkswagen Jetta
  • 1.6L
1981 Volkswagen Rabbit / Rabbit Pick Up
  • 1.6L
1980 Audi 5000
  • 2.0L
1980 Fiat 124
1980 Volkswagen Dasher
  • 1.5L
1980 Volkswagen Rabbit
  • 1.5L
1980 Volkswagen Rabbit Pick Up
  • CARB
1979 Audi 5000
  • 2.0L
1979 Fiat 124
1979 Volkswagen Beetle
1979 Volkswagen Rabbit
  • CARB
1979 Volkswagen Rabbit
  • 1471 CC
1978 Volkswagen Beetle
1978 Volkswagen Rabbit
  • CARB
1978 Volkswagen Rabbit
  • 1471 CC
1977 Volkswagen Beetle
1977 Volkswagen Rabbit
  • 1.5L
1976 Volkswagen Beetle
1976 Volkswagen Rabbit
1976 Volkswagen Scirocco
1975 Opel Manta
  • With Panel Filter
1975 Volkswagen Beetle
1975 Volkswagen Rabbit
1975 Volkswagen Scirocco
1974 Volkswagen Beetle
1974 Volkswagen Karmann Ghia
1974 Volvo 144 / 145
  • FI (Fuel Injection)
1973 Volkswagen Karmann Ghia
1973 Volvo 142
1973 Volvo 144 / 145
  • FI (Fuel Injection)
1972 Volkswagen Karmann Ghia
1972 Volvo 142
1972 Volvo 144 / 145
  • FI (Fuel Injection)
1972 Volvo 164
  • CARB
1971 Volkswagen Transporter
1971 Volvo 140 Series
1971 Volvo 164
  • CARB
1970 Volkswagen Transporter
1970 Volvo 140 Series
1970 Volvo 164
1969 Volvo 142 / 144
1969 Volvo 145
  • 1990 CC
1969 Volvo 164
  • With Sidedraft Carburetor

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