RK-3901PK Image

K&N RK-3901PK Be the first to review!
Filter Wraps > Air Filter Wrap

 List Price: $27.75
Your Price: $21.99

You Save 20.8%

Find a Local K&N Dealer


       

RK-3901PK
 
In Stock & Ready to Ship!
 Free Ground Shipping!


The K&N PreCharger® filter wrap is specially designed to extend the service interval of your K&N Filtercharger filter when used in very dusty conditions. They are made from durable polyester material containing a uniform weave. The PreCharger will stop small dirt particles with minimal restriction to the airflow of the filter.

[More Information on PreCharger Filter Wraps]
  • This product wraps your air filter with an additional pre-filter
  • Extends service interval of your K&N filter in dusty conditions
  • Durable polyester material with stitched elastic openings
  • Cleanable with K&N Filter Cleaner
Available Information
RK-3901PK Vehicle Applications


Part RK-3901PK Product Specifications
Product Style: Filter Wrap - Round Straight
Wrap Type: Precharger
Color: Black
Material Used: Polyester
Inside Diameter: 7.5 in (191 mm)
Height: 2.25 in (57 mm)
Closed Top: No
Package Contents: 1 PreCharger Wrap
Package Quantity: 1
Air Filter Shape: Round
Weight: 0.08 lb (0.04 kg)
Product Box Length: 5.25 in (133 mm)
Product Box Width: 6.25 in (159 mm)
Product Box Height: 1.5 in (38 mm)


Accessories


Customer Feedback      Be the first to review part RK-3901PK

Dear sirs:

All I can say is most people won't believe this but then it's their loss...in miles per gallon that is. I Own 2 Harleys, a 1979 HD Sportster that several years ago I put a K&N air filter on and felt like it doubled it's performance, and a 1999 FLSTF Fat Boy. I didn't rest there, as a year ago I put a K&N on my 2001 Dodge Ram Quad cab Cummins turbo diesel and also felt the increase in performance not to mention the scream of that turbo that I had never really heard from the factory.

Recently two of my buddies and I went on a motorcycle trip to Stecoah, N.C. Before going on the trip I changed all my fluids and serviced the whole bike. I decided to buy a K&N air filter and pitch the stock one. They were riding a 2003 Honda Goldwing, a 2005 Harley Davidson Roadking and I took my 99 Fat Boy. Prior to installing the K&N my Fat Boy got between 40 & 43 MPG. As we went from fuel stop to fuel stop my mileage was as follows: 43 MPG, 47 MPG, 46 MPG, 48 MPG and 52 MPG EVERY tank after that. My buddies only mustered 44 -46 MPG. Most people would ask what about the weight and the speed. Well both my saddle bags were packed, I had a bag with 20 lbs. on my luggage rack, plus my TBags weighed in at about 50 lbs. The weight we carried was all about the same. The motorcycle weights were different, but not enough to warrant the major difference in MPG. Also mine is carbureted and theirs are fuel injected. As far as the speeds, we were cruising on the interstate at 70 to 80 MPH through a whole fuel run which was about 200 miles. Even when I was on the tail of the dragon, which is 318 turns in 11 miles, my mileage stayed at 52 MPG. All I can say is after over 1700 miles on that trip the K&N definitely paid for itself with the increase of 9-12 MPG.

So everyone has a choice. you can pay at the pumps or spend that money on the LAST air filter you will EVER buy.
Ronnie E., Glen Rock, Pennsylvania
All of my vehicles including my Harley Davidson have K&N Filters installed. They perform without equal.
Robert W.Garcia Sr., Paradise, Texas
I have used K&N products for several years as a ship's engineer. I am now retired and still own the 1988 Harley Davidson FLST I bought new in '87. I also am still using one of the first Screamin Eagle CV carbs. No one makes the correct air filter, so I went back home to K&N for a universal filter that I knew would not only deliver the air flow necessary but would look good as well.
John Sayers, Lecanto, Florida