SEARCH BY VEHICLE

K&N Oil Filters for the Caterpillar 321B

Caterpillar 321B Replacement Oil Filters

Buy now from the K&N Online Store and get a 100% money back guarantee on any oil filter for Caterpillar vehicles or equipment!
  • Outstanding Oil Filtration
  • Designed to protect Caterpillar 321B engines
  • High Oil Flow Rate
  • Heavy Duty Construction
  • Great with Synthetic or Conventional Oil
K&N oil filters for the Caterpillar 321B offer high oil flow rates while providing outstanding filtration. K&N oil filters are designed to work with all grades of synthetic, conventional and blended motor oils.
K&N Premium Oil Filters
Vehicle DescriptionPart NumberProduct Image 
Caterpillar 321B - OEM 1R0739
Excavator
Caterpillar 321B Engine Oil Filter
HP-8001 HP-8001 CATERPILLAR 321B Premium Oil Filter
List Price: $53.99
Factory Direct Price: $40.99
Caterpillar 321B-CR - OEM 1R0739
Excavator
Caterpillar 321B-CR Engine Oil Filter
HP-8001 HP-8001 CATERPILLAR 321B-CR Premium Oil Filter
List Price: $53.99
Factory Direct Price: $40.99
Caterpillar 321B-LCR - OEM 1R0739
Excavator
Caterpillar 321B-LCR Engine Oil Filter
HP-8001 HP-8001 CATERPILLAR 321B-LCR Premium Oil Filter
List Price: $53.99
Factory Direct Price: $40.99

Order your K&N Caterpillar 321B oil filter Factory Direct today! Get more information about K&N oil filters on our oil filter page.