Service

Technical Information

158/20 ENU

4050

4

Spare Parts Requirements for Wheel Carrier/Transverse Control Arm on Front Axle - Check
Component Pairing, a Mixed Installation is Not Permitted (158/20)
Vehicle Type:

911 Turbo S (992) / 911 Turbo S Cabriolet (992)

Model Year:

As of 2020 up to 2021

Subject:

Spare parts requirements for wheel carrier or transverse control arm

Information:

If the wheel carrier or transverse control arm needs replacing, the parts installed in the vehicle
must be checked beforehand due to a change to the wheel carrier design during production.
Parts can be replaced individually or may all have to be replaced on each axle, depending on
whether a new wheel carrier or a new transverse control arm is required.

Remedial
Action:

Check the transverse control arm connection on the wheel carrier. Depending of the result of the check,
carry out the following repair measure as described in the section  Technical Information 'Checking the
transverse control arm on the wheel carrier threaded joint'.

Affected part numbers
Parts Info:

Part number (old)

Part number (new)

Designation

992407245BY

992407245CY

Left pivot bearing (wheel carrier)

992407246BY

992407246CY

Right pivot bearing (wheel
carrier)

992407151E

992407151F

Wishbone

PAF908088 (M12)

WHT006151 (M14)

Hexagon collar nut, self-locking

AfterSales

Nov 25, 2020
Page 1 of 8

4

Service
4050

ENU

Technical Information

158/20

Checking the transverse control arm connection on the wheel carrier
Work
Procedure:

Existing vehicles have an M12 threaded joint that
connects the transverse control arm to the wheel carrier
 Threaded joint between transverse control arm and
wheel carrier on existing vehicles.

Threaded joint between transverse control
arm and wheel carrier on existing vehicles

Nov 25, 2020
Page 2 of 8

AfterSales

Service

Technical Information

158/20 ENU

4050

4

New vehicles have an M14 threaded joint that connects
the transverse control arm to the wheel carrier as well
as a pressed bush  Threaded joint between transverse
control arm and wheel carrier on new vehicles.

Information
Due to the nature of the assembly, a mixed installation of
the old transverse control arm and a new wheel carrier is
not permitted. Due to its design, the M12 threaded joint
does not have the required contact surface on the new
wheel carrier. If a mixture of old and new components are
installed, there is no guarantee that the forces occurring
will not damage the wheel carrier.
1

Raise the vehicle, see  Workshop Manual '4X00IN
Lifting the vehicle'.

2

Check the transverse control arm connection on the
wheel carrier.

Threaded joint between transverse control
arm and wheel carrier on new vehicles

•

If it has an M12 threaded joint and only a
transverse control arm is required, this can be ordered and replaced in the normal way. Order
the old transverse control arm and then replace the existing control arm, see  Technical
Information '4X00IN Replacing the transverse control arm only (M12 threaded joint)'.

•

If it has an M12 threaded joint and a new wheel carrier is required, new wheel carriers with new
transverse control arms must be installed to the front axle. Order new wheel carriers with new
transverse control arms and replace the existing wheel carriers, see  Technical Information
'4X00IN Replacing wheel carriers and transverse control arms (complete front axle)'.

•

If it has an M14 threaded joint, the wheel carriers and transverse control arms can be replaced
individually. Order the required parts and replace the faulty component, see  Technical Information '4X00IN Replacing wheel carriers or transverse control arms (M14 threaded joint)'.

Replacing the transverse control arm only (M12 threaded joint)
Parts Info:

Parts required
Part No.

Designation
– Use

Qty.

992407151E

 Transverse control arm
– Front axle

1 ea.

PAF908088

 Hexagon collar nut, self-locking
– Front axle

1 ea.

AfterSales

Nov 25, 2020
Page 3 of 8

4

Service
4050

ENU

Technical Information

158/20

9A700837900

 Tie-wrap
– Front axle

2 ea.

9A700820900

 Hexagon-head bolt
– Transverse control arm

1 ea.

PAF909664

 Hexagon collar nut, self-locking
– Transverse control arm

1 ea.

Work Procedure: 1

2

Replace the transverse control arm, see  Workshop Manual '401719 Removing and installing
lower trailing arm'.
Perform suspension alignment and make adjustments, see  Workshop Manual '449503
Performing suspension alignment at front and rear'.

Replacing wheel carriers and transverse control arms (complete front axle)
Parts Info:

Parts required

Part No.

Designation
– Use

Qty.

992407245CY

 Left pivot bearing (wheel carrier)
– Front axle

1 ea.

992407246CY

 Right pivot bearing (wheel carrier)
– Front axle

1 ea.

992407151F

 Transverse control arm
– Front axle

2 ea.

Additional parts required
WHT006151

 Hexagon collar nut, self-locking
– Transverse control arm

2 ea.

9A700820900

 Hexagon-head bolt
– Transverse control arm

2 ea.

PAF909664

 Hexagon collar nut, self-locking
– Transverse control arm
– Connecting link for anti-roll bar
– Spring strut to wheel carrier

6 ea.

9A700758500

 Cheese head bolt M12x1.5x85
– Brake calliper

4 ea.

9A700837900

 Tie-wrap
– Longitudinal arm

4 ea.

PAF008742

 Hexagon-head bolt
– Spring strut to wheel carrier

2 ea.

Nov 25, 2020
Page 4 of 8

AfterSales

Service

Technical Information

158/20 ENU

4050

WHT007021

 Hexagon nut, self-locking with washer
– Drive shaft

2 ea.

PAF908088

 Hexagon collar nut, self-locking
– Tie rod

2 ea.

PAF100829

 Hexagon-head bolt (combination)
– Cover plate

6 ea.

9P1407621

 Angular-contact ball bearing
– Wheel carrier

4

Only for vehicles with PDCC
PAF008758

 Hexagon flange bolt