K&N parts matching Baldwin RS4642 air filter

The Baldwin RS4642 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Baldwin air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter-Hdt
  • Washable and Reusable
  • Easy to Clean
Justin Zauner, Henderson, Nevada
In the 2 days I was running with it before an elk decided it wanted to ruin my week, I was already noticing performance increases and higher mpg's.
Owen, Manhattan, Kansas
Arrived in a timely manner, easy install. A little hard to find on your site.
Chris Waddell, Hartford City, Indiana
I picked up the K&N Heavy Duty Replacement Air Filter for my Volvo Tractor Trailer after I arrived at the 76th Annual Sturgis Motorcycle Rally. I had heard about these now for 2, maybe 3 years without consideration of any type of performance gains. These filters are built tough. Installed with ease in about 10 minutes. On our way home to Indiana, we realized .5 mpg better hauling 74,500 lbs and 1.0 mph light load better. I highly recommend this filter. 300,000 Warranty to boot? Thanks K&N
38-2025S K&N 38-2025S Replacement Air Filter-HDT
List Price: $312.59
Your Price: $233.99