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Air Filter 121-3661 Compatible with Caterpillar 301.5, 301.6, 301.8, 302.5, 303, 303.5, 303C CR, 304, 304.5, 304C CR, 304CR, 305, 305CR Excavators in Kuwait Air Filter 121-3661 Compatible with Caterpillar 301.5, 301.6, 301.8, 302.5, 303, 303.5, 303C CR, 304, 304.5, 304C CR, 304CR, 305, 305CR Excavators in Kuwait

Air Filter 121-3661 Compatible with Caterpillar 301.5, 301.6, 301.8, 302.5, 303, 303.5, 303C CR, 304, 304.5, 304C CR, 304CR, 305, 305CR Excavators

KWD 12
– 1 +

Special Features

  • High-Performance Replacement Air Filter. Boosts Engine Efficiency – This premium air filter captures dust, dirt, and debris before they enter your engine, improving fuel efficiency and extending engine life.
  • Built to Last – Manufactured with high-quality pleated paper and durable sealing for maximum filtration and a snug fit. Withstands tough outdoor conditions. Easy Installation – No tools required. Simple drop-in design makes replacement quick and hassle-free — even for beginners.
  • Compatible with Caterpillar Excavator Model 301.5, 301.6, 301.8, 302.5, 303, 303.5, 303C CR, 304, 304.5, 304C CR, 304CR, 305 and 305CR.
  • Replaces OEM # Caterpillar 121-3661.
  • Tech Info: Height 10-3/4", ID 2-1/2", OD 4-1/8"

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