K&N parts matching AC Delco A2991C air filter

The AC Delco A2991C air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many AC Delco air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Airbox
  • Low Restriction Replacement Air Box
  • High-Flow Round Air Filter
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
Phillip Wilkerson, Alabama
Gives my truck more power. Have not had it on long enough to see if gas mileage improves.
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
E-0780 K&N E-0780 Replacement Airbox
List Price: $717.29
Your Price: $395.99