The following are known Action Replay Codes for 18 Wheeler: American Pro Trucker on Sony Playstation 2 (PS2). These codes were also known as GameShark Codes and in most cases will work on both devices.

Device Compatibility: Action Replay & GameShark (Version 1 & 2)

• Master Code – Must Be On
  EC8935C8 1440C69C
• Max Cash: Press R1
  0CCA0E26 1456B80C
  1CA7B8C4 14BE598C
  0CCA0E26 1456B80C
  1CCD7094 14BE598C
• More Time: Press L1
  0CCA0E26 1456AC0C
  4CA7B8CC 1456BDD5
• K.i.t.a Turbo: Press R2+ L3
  0CCA0E26 1456B20A
  4CE4C6AE 14562555