Workhorse W21 Replacement Oil Filters

Buy now from K&N's Online Store and get a 100% money back guarantee on any oil filter! Outstanding Oil Filtration for Workhorse W21 Models.

• High Oil Flow Rate
• Heavy Duty Construction
• Great with Synthetic or Conventional Oil

K&N automotive oil filters for the Workhorse W21 offer high oil flow rates while providing outstanding filtration. K&N automotive oil filters are designed to work with all grades of synthetic, conventional and blended motor oils.