K&N parts matching Wesfil WA5429 air filter

The Wesfil WA5429 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Wesfil air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Tristan Magnus, Langdon, North Dakota
I've used K&N filters for years and they have always been great. This one is no exception. Fit perfectly and my car definitely seems to have a little extra pep. Will continue to buy these for every vehicle I buy in the future.
Chris Diehl, Shippensburg, Pennsylvania
Good product. Nice boost in power.
Gregory, California
Got this air filter yesterday, went to install it and when I pulled the factory filter out which only had 2000 miles on it as my car is brand new I saw that it had already let a lot of larger particals pass by into the housing. So after removing the stock filter and cleaning the air box, I unwrapped the new K&N, it fit like a glove. I closed up the air box, started the car and you could tell right away by the sound that it had more air flow sounded much better then stock. l then went for a drive and the car now accelerates quicker, runs smoother and has more passing power and is just a great improvement over stock. Just by replacing a stock part with a much higher quality one! Highly recommended. Don't forget to put the sticker that comes with it on the top of your air box so some dummy changing your oil doesn't throw your filter away and try and sell a stock one to you or your wife, if you let her take it in for a oil change. 5 stars would buy again in a heart beat.
33-5045 K&N 33-5045 Replacement Air Filter
List Price: $75.99
Your Price: $48.99