K&N parts matching WIX 51521 oil filter

The WIX 51521 oil filter cross references with the K&N oil filter parts below. K&N offers compatible oil filters for many WIX oil filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Oil Filter
  • 1 Inch Nut for Easy Removal
  • Heavy Duty Construction
Kevin, Jacksonville, Florida
Nice and easy to use. never had any issues with this filter.
William Lazzi, Blacksburg, Virginia
The old filter that I replaced had very thin metal and was overtightened. The filter was very hard to remove and was quite damaged in the process. I will always use HP filters from now on.
Timothy Devine, Setauket, New York
Tough filter. Keeps oil clean, easy takeing off. Only problem is the filter loosens up slightly when on.
HP-2004 K&N HP-2004 Oil Filter
List Price: $19.49
Your Price: $16.99
K&N Oil Filter
  • K&N Performance Silver Series
  • For Synthetic and Conventional Oils
Russell Braendlein, South Korea
Only drawback was your refusal to ship to apo addresses. I had to order through amazon
Arnold Sandoval, San Diego, California
Fast shipping great service. Thank you.
Barry White, Santa Ynez, California
Good service, just VERY disappoined filter is MADE in China.
PS-2004 K&N PS-2004 Oil Filter
List Price: $9.29
Your Price: $7.99
K&N Oil Filter; Billet
  • Billet Aluminum Housing
  • Washable and Reusable
SS-2004 K&N SS-2004 Oil Filter; Billet
Your Price: $249.95