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Caterpillar 3412C — Engine Air Cleaner Element (Dual Element) - Clean/Replace

Maintenance

For the Caterpillar 3412C, from the Caterpillar owner's manual.

Applies to: Caterpillar 3412C, Caterpillar 3412C engine

Before you start

  • Never service the air cleaner element with the engine running
  • Do not wash air cleaner elements in flammable solution

Parts for this job

Part numbers from the service-parts lists for Caterpillar 3412C, Caterpillar 3412C engine. Verify against your serial number before ordering; some links are affiliate links.

Procedure

  1. Remove cover and primary air cleaner element.
  2. Discard secondary element every three cleanings of primary.
  3. Cover turbocharger air inlet with tape to keep dirt out.
  4. Clean inside of air cleaner cover and body with dry cloth.
  5. Remove tape; install secondary and primary elements.
  6. Install the air cleaner cover.
  7. Reset the service indicator.

Specs & values

  • Maximum water pressure for cleaning 275 kPa (40 psi)
  • Maximum air pressure 207 kPa (30 psi)
  • Oven drying must not exceed 82 °C (160 °F)

Full service-parts list: Caterpillar 3412C →, Caterpillar 3412C engine →

Source: Caterpillar owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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