Caterpillar 304 CR Replacement Air Filters

Buy now from K&N's Online Store and get a 100% money back guarantee on any Caterpillar 304 CR air filter!

  • Designed to Increase Horsepower and Acceleration
  • High Air Flow with Excellent Filtration
  • Top Performance Accessory for Caterpillar 304 CR Models
  • K&N Million Mile Limited Warranty┬«

Order your K&N replacement air filter Factory Direct today! Help your Caterpillar 304 CR run better. Fast and FREE SHIPPING with any Caterpillar 304 CR air filter

  1. Caterpillar 304 CR air filter
    S/N ANR1-up, S/N NAD1-up
    $49.99
    E-4961
    K&N
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