Diesel Data: Automotive Repair

Peanut Fitting




Air Conditioning

Peanut Fitting

When disconnecting or connecting peanut fittings, observe the following.

- The male and female blocks of the peanut fitting are retained with a nut.
- Support the female fitting with a wrench to prevent twisting of the tubes.
- An O-ring seal is installed around the tube on the male block.
- On 4.6L and 5.4L vehicles, a gasket seal is installed along with the O-ring seal at the A/C compressor fittings.
- When correctly assembled, the male and female fittings should be flush.
- Use only the seals listed in the Ford Master Parts Catalog.