Universal Round Tapered Air Filter (RC-4850) by K&N®, 2.75" F x 6.75" B x 5.875" D x 3.25" L. Get better performance, superior engine protection and more economical operation with a K&N Air Filter. K&N Universal Air Filters are available for just about any application.
Dimensions of the Available K&N Round Tapered Universal Air Filters:
Part # Flange Inside Dia. (F) Base Outside Dia. (B) Top Outside Dia. (D) Length (L) Top Style Flange Length (FL) Flange Angle (FA) RU-5162 0.25" 1.375" 1" 1.125" Rubber 0.375" 0 degrees RU-3490 0.313" 1.375" 1" 1" Rubber 0.625" 0 degrees RU-3170 0.313" 1.375" 1" 1.375" Rubber 0.375" 0 degrees 62-1550 0.875" 3" 3.5" 4" Rubber 0.75" 0 degrees RE-0200 1" 2.875" 3.5" 3.5" Rubber 0.625" 0 degrees RC-2540 1.125" 2.25" 2" 2.5" Metal 0.625" 0 degrees RE-0220 1.25" 2.875" 3.5" 3.5" Rubber 0.625" 0 degrees RC-2490 1.688" 3" 2" 2.375" Metal 0.625" 0 degrees Click Here to Check Other Dimensions
- 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
K&N Universal Air Filters are constructed with ultra-strong molded pliable rubber flanges that absorb vibration and allow for secure attachment. They can also be stretched up to 1/16-inch to fit in-between sizes. 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.
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.54.67Brand: K&N Part Number: RC-4850 UPC: 024844093660
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.K&N® RC-4850 - Round Tapered Air Filter Reviews (10)Customers' rating: 5 OF 5APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY(4.5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYKia Optima SX Turbo| Posted by Steven A. | 2012 Kia Optima (Orland Park, IL)
I'm usually sketchy when it comes to buying aftermarket products for my car, especially those that are "recommended" by dealerships. However, after researching K&N filters I decided to buy one. Easy install, instant increase in acceleration. I did notice that the high flow filter does make for more engine noise for those of you who like a quite ride, although I usually drive with windows down and/or radio on so it's not noticeable. Good buy if your looking to spice up your car but it's only a filter so don't expect 5hp increases.Was this review helpful for you? YesNo(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY33 Series Air Filter| Posted by Jose P. | 2009 Nissan Altima (Chicago, IL)
This is the second K&N filter I have purchased. The first was installed in a Toyota Prius and improved performance as well as gas mileage. This filter took about five minutes to install with no problems. I noticed the engine ran better than with the Toyota filter and after a few days my mpg went from 45.4 to 47.3 mpg. I would advise any one who is concerned about gas prices to Get a K&N filter!Was this review helpful for you? YesNo(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY(4.5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYEasy Replacement| Posted by Katelin K. | 2003 Saab 9-3 (Norwell, MA)
I purchased this filter for my Saab 2003 9-3. Easy to replace and the car seems to drive more smoothly.Was this review helpful for you? YesNo(4.5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYK&N Air Filter| Posted by Rodrigo G. | 2009 Nissan Sentra (Chicago, IL)
This filter made a huge change in my car's performance. I have a Nissan Sentra and I was getting around 22 mpg, after changing the filter and cleaning the injectors now I'm around the 30's. I recommend this product, and I did a lot of research before buying it, and as the other guys say, it works. Maybe you shouldn't expect that improve in your fuel economy, but for sure it will help you.Was this review helpful for you? YesNo
ReviewsK&N® RC-4850 - Round Tapered Air Filter Reviews (10)View more 10 All K&N Air Filters reviews >>