Part reference
Main Bearing Set for CAT C4.4 / C6.6
Part number 390-3066 is listed in public CAT C4.4 / C6.6 parts references as Main Bearing Set. This page makes the exact part number searchable and provides a direct route for a technical supply enquiry.
CAT engine series include multiple cylinder arrangements, applications and build configurations. The part number must therefore be checked against the complete engine model, serial number and build record before supply is confirmed.
Information required for verification
- Complete CAT engine model and suffix
- Engine serial number and nameplate photo
- Current part number and clear photos
- Application: generator, marine, rail or industrial
- Required quantity and requested delivery timing