Front Wheel Hubs/Tension Ring - Revised

Group
4

Number
9405

Model
6 Cyl.

Part Identifier
4057

June 9, 1994

Subject:
Revised Front Wheel Hubs
and Tension Ring

ATTENTION: Service Manager / Service Technician

Models Affected:
911 Carrera 1995

Concern:

Effective immediately, revised wheel hubs (same as Carrera 4) and tension rings are being installed in production.





As of March 1, 1994 VIN:

997 SS 320633 Coupe
994 SS 340296 Cabriolet





Part Identifier:





Repairs:

The revised wheel hubs and tension rings are changed in the wheel bearing area (see Figure A, circle). The tension ring is now being centered by the wheel hub and no longer by the bearing ring.

If on cars produced before March 7, 1994 introduction date, the wheel hub or the tension ring is being replaced, the correct application of hub and tension ring must be adhered to. See chart below:

Vehicle Type Wheel Hub Tension Ring

911 Carrera (993) 964 341 065 03/04 993 341155 01 (48 teeth)
911 Carrera 4 (964) 964 341 065 03/04
911 Carrera 2 (964) 964 341 065 12 964 341 155 12 (45 teeth)
911 America Roadster
911 Turbo (964)
911 RS America

NOTE:
No other selection is permissible!

Installation:

1. When the front wheel hub is removed, the wheel bearing is damaged and must be replaced.

2. Always replace the self-locking nut.

3. Torque front wheel nut to 460 Nm (311 ft.lb.). (Thread and nut contact surface without grease - only 993.)