WMA3 Service Bulletin/Repair Instructions

WMA3 Workshop campaign - Replacing

wheel bearing housing
WMA3 Workshop campaign - Replacing wheel bearing

housing

ID Number
WMA3
Models
911 (992)
Model Years
2020-2021
VIN list
Attached
Number of Affected VINs
774
Issue Description
There is a possibility that one or more taper bushings

were not pressed into the wheel bearing housing reliably.

A deviation during the pressing-in process may have

caused chips to form between the adjoining parts. Under extreme driving conditions, these chips could reduce the remaining life span of the affected components.
What Dealers should do
Please arrange for the repair to be carried out on affected vehicles as soon as possible.

The repair is available as of the time of this posting.
TI Number
No. 11-21
Parts required

Replacing front left wheel bearing housing - Vehicles with campaign

scope 1, 4, 7, 10, 12 and 15

• Relevant for 911 Carrera (992), 911 Carrera S (992), 911 Carrera 4S (992), 911 Carrera 4 (992), 911

Carrera GTS (992)

Part No.
Designation
Quantity/vehicle
Parts return*
1
WMA3 Workshop campaign - Replacing wheel bearing housing
992407245 Y
Left pivot bearing (I-no.

0N1)
1 unit
No
992407245AY
Left pivot bearing (I-no.

0N5)
1 unit
No
9P1407621
Angular-contact ball bearing
1 unit
No
WHT007021
Hexagon nut
2 units
No
PAF909664
Hexagon collar nut (without PDCC)
2 units
No
PAF008758
Hexagon flange bolt (with

PDCC, I-no. 1P7)
2 units
No
PAF908088
Hexagon collar nut
2 units
No
PAF100829
Hexagon-head bolt (with

washer assembly)
3 units
No
PAF008742
Hexagon-head bolt
1 unit
No
N 10456004
Internal hexagon round

countersunk screw
2 units
No
9A700758500
Cheese head bolt (I-no.

1LR, 1LS)
2 units
No
Cheese head bolt (I-no.

1LQ, 1LX, 1LZ)
2 units
No
or (depending on scope)
or (depending on scope)
or (depending on scope)

WHT008186
Replacing front right wheel bearing housing - Vehicles with campaign

scope 2, 5, 8, 13 and 16

• Relevant for 911 Carrera (992), 911 Carrera S (992), 911 Carrera 4S (992), 911 Carrera 4 (992), 911

Carrera GTS (992)

Part No.
Designation
Quantity/vehicle
Parts return*
992407246Y
Right pivot bearing (I-no.

0N1)
1 unit
No
992407246AY
Right pivot bearing (I-no.

0N5)
1 unit
No
9P1407621
Angular-contact ball bearing
1 unit
No
WHT007021
Hexagon nut
2 units
No
or (depending on scope)
2
WMA3 Workshop campaign - Replacing wheel bearing housing
PAF909664
Hexagon collar nut (without PDCC)
2 units
No
PAF008758
Hexagon flange bolt (with

PDCC, I-no. 1P7)
2 units
No
PAF908088
Hexagon collar nut
2 units
No
PAF100829
Hexagon-head bolt
3 units
No
PAF008742
Hexagon-head bolt
1 unit
No
N 10456004
Internal hexagon round

countersunk screw
2 units
No
9A700758500
Cheese head bolt (I-no.

1LR, 1LS)
2 units
No
Cheese head bolt (I-no.

1LQ, 1LX, 1LZ)
2 units
No
or (depending on scope)
or (depending on scope)

WHT008186
Replacing front left and right wheel bearing housing - Vehicles with

campaign scope 3, 6, 9, 11, 14 and 17

• Relevant for 911 Carrera (992), 911 Carrera S (992), 911 Carrera 4S (992), 911 Carrera 4 (992), 911

Carrera GTS (992)

Part No.
Designation
Quantity/vehicle
Parts return*
992407245 Y
Left pivot bearing (I-no.

0N1)

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