K&N parts matching Motorcraft FL321 oil filter

The Motorcraft FL321 oil filter cross references with the K&N oil filter parts below. K&N offers compatible oil filters for many Motorcraft oil filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Oil Filter
  • 1 Inch Nut for Easy Removal
  • Heavy Duty Construction
Jean-Marc Graince, Marseille, France
Mise en service sans problème.
Joseph Maslowski, Texas
Thicker steel construction, better gasket & better filtration. What's not to like.
William Dutton , Columbia, Pennsylvania
Nothing runs and perform like K&N, period.
HP-1001 K&N HP-1001 Oil Filter
List Price: $17.89
Your Price: $15.99
K&N Oil Filter
  • K&N Performance Silver Series
  • For Synthetic and Conventional Oils
Brian Billips, Charlotte, North Carolina
K&N oil filters are a slight premium in price to some of its competitors yet outperforms with its excellent performance. I started to use K&N filters and synthetic oil when I flipped 150,000 miles on my 2004 Chevy Impala after noticing the engine seemed sluggish when accelerating on the interstate. When I asked my local auto parts store for their recommendations, they indicated that the cheap oil filters coupled with traditional oil could cause a loss in horsepower and lower MPG after only 3,000 miles. One of the best decisions for my car was switching to K&N oil filters and synthetic oil since I now have 220,000 miles! The engine continues to run smooth while maintaining its factory MPG.
Neal, Michigan
Seems to be a quality product, but still to early to tell since I have only put about 800 miles on the filter since install.
David, Wisconsin
Works great.
PS-1001 K&N PS-1001 Oil Filter
List Price: $8.99
Your Price: $7.99
K&N Oil Filter; Billet
  • Billet Aluminum Housing
  • Washable and Reusable
Andrzej, New Jersey
Cool, I recommend for everyone .
Shannon , Kansas City, Missouri
Do you hate buying oil filters? (if you're on K&N its the right place to be). I have 07 Grand Prix 3.8L and if you keep your cars forever (like i do) then this filter will pay for itself. About 25 (or less) oil changes based on former filters. This filter fits most GM 3.8L. K&N also has awesome customer service, they responded right away when I didn't see a cleaning kit listed. I think I put the filter on too tight 1st time... Difficult to remove at next LOF. I now have my car 100% K&N equipped (if available)... I have now spent enough money, I got a free K&N hat. WOOHOO! MAKE YOUR MOVE
John, Napanee, Ontario
Very pleased with filter on 1987 buick grand national. Easy to clean and helps filter oil better than standard filters. Any advantage for high performance engines is crucial for long term engine wear. Would recommend for anyone. price isnt cheap but well worth it in the long run.
SS-1001 K&N SS-1001 Oil Filter; Billet
Your Price: $249.95