Caterpillar Part reference

0308142reducer-flared

Catalog listing 0308142 is a flared reducer, a fitting used in fluid or air line connections to step between two different flared pipe or tube sizes. It appears in the Caterpillar catalog with occurrences under air starting motor groups for the Caterpillar 3406C, shown as catalog associations only. Confirm the recorded conditions before ordering.

Recorded applications

Models and catalog references

Selected catalog references that list this part. A catalog association does not confirm fitment for every machine or configuration.

  • Caterpillar 3406C
  • Caterpillar 3406E
  • Caterpillar 3408C
& More catalog references
  • Caterpillar 3408E
  • Caterpillar 3412E
  • Caterpillar 3456
  • Caterpillar C27
  • Caterpillar C32
  • Caterpillar CPT372
  • Caterpillar 3412C
  • Caterpillar 3412D
  • Caterpillar C15

Catalog context

Where this part appears

  1. ModelCaterpillar 3406C
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  2. Groupelectrical and starting system
  3. Subgroupstarting motor group-air
  4. Unit105-5081 starting motor gp-air part of 106-8765 starting motor gp-air type 2 an attachment
Heavy Parts AI

Caterpillar 3406C

Catalog referenceCaterpillar 3406C
About diagram access

Check the signed-in Part Book for available diagrams and the complete catalog breakdown.

Parts in this preview

Selected records
Selected catalog parts, with other part numbers masked
Part numberDescription
0308142reducer-flared (current part)
06***58tee hose assembly to
0T***02bolt; (3/8-16x0.625-in)(shield to head)
10***48bracket as

Selected entries from this catalog unit. Other part numbers are masked. Confirm the full breakdown and your machine configuration before ordering.

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General guidance

Component knowledge

Understanding this component

In general, a flared reducer is a line fitting with flared ends that joins two tubes or hoses of different diameters while keeping a sealed, leak-resistant connection. Flared fittings seal by pressing a conical flare against a matching fitting seat, which is common in hydraulic, fuel, air and lubrication lines on heavy equipment.

What to check before ordering

Use part number 0308142 exactly as listed when requesting this flared reducer. Before ordering, check the catalog occurrences and their recorded conditions against your machine's serial number and configuration, since a catalog association does not confirm fitment for every machine.