K&N parts matching Carquest 87731 air filter

The Carquest 87731 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Carquest air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Joe Murray, Edisto Island, South Carolina
I have not finished putting it in, I do expect better performance, The instructions are a little vague, but I am doing it all right, I just ran out of light, it will be done tomorrow.
Mark Petersen, Palm Beach Gardens, Florida
Great Air Filters. I use them in all my vehicles.
33-2341 K&N 33-2341 Replacement Air Filter
List Price: $102.69
Your Price: $65.99
K&N Replacement Airbox
  • Low Restriction Replacement Air Box
  • High-Flow Round Air Filter
Michael, Ringgold, Georgia
Install on my 2005 Ford F350 6.0 was little over an hour. Biggest issue was the back nut on the back of the KN filter housing below the radiator fluid fill area. Very difficult to get to, but no issues on the install in general. Engine has good response, sound is about the same. Hoping to increase fuel economy but still in the testing process.
Irene Wiens, Qualicum Beach, BC, Canada
We purchased this air filter kit while travelling, we haul a 30' RV and were going across Canada. Unfortunatly there was a small defect in one area, which prevented it from being installed immediately. We needed to get on the road, so we informed K&N of the problem (with pictures) and when we returned home the part was already waiting for us. The difference in power with this new air filter is awesome. We drive a 2006 F350 6L 4x4 Superduty. Great service, Thanks
Ed, Ohio
I have an 05 F 350 4x4 DRW. I have noticed an increase in throttle response. The truck pulls much better than before. And I get an increase of 2 mpg at minimum or better. This is driving 80 mph and not letting off up the hills. I installed this right before a 2000 mile trip, and I wanted to get a true reading on the mileage increase and power. It's worth the $400.00
E-0780 K&N E-0780 Replacement Airbox
List Price: $717.29
Your Price: $395.99