K&N parts matching Mobil AF4051 air filter

The Mobil AF4051 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Mobil air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
R. Knights, Arizona
My new K&N Air filter has made a difference in my car's response and power. It is worth it. The K&N store was very prompt in the order and correcting a mistaken part sent that didn't fit my car (probably my own fault) They made an order correction easy by sending a prepaid shipping label to return the part.
Don Booth, Portland, Oregon
This is the 3rd vehicle I have installed a K&N air filter in. Every vehicle has benefitted from an immediate increase in power, not a huge increase, but assuredly noticeable. None of the vehicles however have had increased gas mileage due to the filter and I don't care about that. Give me horsepower! Great product and I've not had any issues with them.
John Eisenbarger, Pemberton, Pennsylvania
Online order was easy, arrived quickly. Superior filter, noticed almost right away an increase in acceleration. Looks also that there is a noticeable improvement in fuel economy. Quality product, looking forward to trying more K&N products.
33-2430 K&N 33-2430 Replacement Air Filter
List Price: $82.99
Your Price: $53.99