NHTSA ID Number: 10199867
Manufacturer Communication Number: No. 58-20
TSB/Document Date: 2021-08-04
Summary
List of approved wheels, tires, and spacers for the 911, from Model year 1989 to 1994.
Freigabe/Approval
Manufacturer's Certificate
58/20
ENU
4400
4
Approved Tires, Wheels and Spacers (58/20)
Revision:
This bulletin replaces bulletin Group 4 08/11, dated May 26, 2011.
Model Year:
As of 1989 up to 1994
Vehicle Types
911 Carrera 2 and 4/911 Speedster/911 Carrera RS/911 Turbo/911 Turbo S/911 Turbo
3.6/911 Carrera 2 Cabriolet "Turbo Look"/911 Carrera 4 Cabriolet "Turbo Look" (964 type
series)
Information:
Approved tires
WARNING
Driving with different tires (mixed tires)
•
Uncontrollable vehicle handling
Only use tires of the same make and type, with the same speed index and the same specification code
(N0, N1, N2, ...) on a vehicle.
Makes/Types:
Summer tire approvals
Tire size
Tire make and type
Pirelli
P-Zero Rosso
Asimmetrico N5
Comments /
Label value (Link to EU database)
964 Carrera 2 mod. 90—94
FA: https://eprel.ec.europa.eu/qr/596145
RA: https://eprel.ec.europa.eu/qr/596144
964 Carrera 4
205/55 ZR16 (FA)
Michelin Pilot Exalto 2 N0
964 Carrera 2/4 narrow version
(vehicle width: 1,652 mm)
FA: https://eprel.ec.europa.eu/qr/408538
225/50 ZR16 (RA)
RA: https://eprel.ec.europa.eu/qr/412732
Continental ContiSportContact N2
Pirelli P Zero Trofeo R N0
(Ultra High Performance
tires)
AfterSales
964 Carrera RS mod. 92
FA/RA: Data currently not available
964 Speedster mod. 93 and 94
FA: https://eprel.ec.europa.eu/qr/621929
RA: https://eprel.ec.europa.eu/qr/621931
Jul 30, 2021
Page 1 of 17
4
Freigabe/Approval
4400
ENU
Manufacturer's Certificate
58/20
Pirelli P-Zero Dir. N3
Continental ContiSportContact N1
Continental ContiSportContact N2
Pirelli P-Zero Rosso
Asimmetrico N5
205/55 ZR 16
(FA)
Pirelli P Zero Trofeo R N0
(Ultra High Performance
tires)
245/45 ZR 16
(RA)
Yokohama 8008P N0
Bridgestone Potenza
S-02 N3
Continental ContiSportContact N1
964 Carrera 2/4 narrow version
(vehicle width: 1,652 mm)
FA/RA: Data currently not available
964 Carrera 4
FA/RA: Data currently not available
964 Carrera RS mod. 92
FA: https://eprel.ec.europa.eu/qr/596145
RA: https://eprel.ec.europa.eu/qr/596143
964 Carrera RS mod. 92
FA: https://eprel.ec.europa.eu/qr/621929
RA: https://eprel.ec.europa.eu/qr/621932
964 Carrera RS mod. 92
FA/RA: Data currently not available
964 Carrera 2/4 narrow version
(vehicle width: 1,652 mm)
FA/RA: Data currently not available
964 Carrera 2/4 narrow version
(vehicle width: 1,652 mm)
FA/RA: Data currently not available
964 Carrera 2 mod. 90—94
Pirelli P Zero Rosso
Asimmetrico N5
964 Turbo, 964 Carrera RS, 964 Speedster
and 964 RS America
FA: https://eprel.ec.europa.eu/qr/596142
205/50 ZR 17
(FA)
255/40 ZR 17
(RA)
964 Carrera 2/4 narrow version
(vehicle width: 1,652 mm)
RA: https://eprel.ec.europa.eu/qr/596140
964 Carrera 2 mod. 90—94
Pirelli P Zero Rosso
Asimmetrico N5
964 Turbo mod. `91 and `92
FA: https://eprel.ec.europa.eu/qr/596142
RA: https://eprel.ec.europa.eu/qr/596140
Continental ContiSportContact2 N2
Jul 30, 2021
Page 2 of 17
AfterSales
964 Carrera 4
964 Turbo S mod. 92
Freigabe/Approval
Manufacturer's Certificate
58/20
ENU
4400
4
964 Carrera 2/4 narrow version
(vehicle width: 1,652 mm)
964 Turbo, 964 Carrera RS, 964 Speedster
and 964 RS America
FA/RA: Data currently not available
964 Carrera RS mod. 92
964 C2 "Turbo look" mod. 92 — 93
Michelin Pilot Sport 2 N3
964 Carrera 2/4 narrow version
(vehicle width: 1,652 mm)
964 Turbo, 964 Carrera RS, 964 Speedster
and 964 RS America
FA: https://eprel.ec.europa.eu/qr/409007
RA: https://eprel.ec.europa.eu/qr/412056
964 Speedster mod. 93 and 94
Pirelli P Zero Trofeo R N0
(Ultra High Performance
tires)
964 C4 "Turbo Look" mod. 93 and 94
FA: https://eprel.ec.europa.eu/qr/621929
RA: Data currently not available
Bridgestone Potenza
S-02A N4
964 Carrera 2/4 narrow version
(vehicle width: 1,652 mm)
964 Turbo, 964 Carrera RS, 964 Speedster
and 964 RS America
FA/RA: Data currently not available
Bridgestone Potenza
S-02 N3
Bridgestone S01 N0
FA/RA: Data currently not available
964 Turbo, 964 Carrera 2 Cabriolet “Turbo
Look”, 964 Carrera 4 Cabriolet “Turbo
Look”, 964 America Roadster
FA/RA: Data currently not available
225/45 ZR 17
(FA)
275/35 ZR 17
(RA)
964 Turbo, 964 Carrera RS, 964 Speedster
and 964 RS America
964 Turbo mod. `91 and `92
Pirelli P Zero Rosso
Asimmetrico N5
964 Turbo S mod. 92
964 C2 "Turbo look" mod. 92 — 93
964 C4 "Turbo Look" mod. 93 and 94
FA: https://eprel.ec.europa.eu/qr/596141
AfterSales
Jul 30, 2021
Page 3 of 17
4
Freigabe/Approval
4400
ENU
Manufacturer's Certificate
58/20
RA: https://eprel.ec.europa.eu/qr/621926
Pirelli P Zero Rosso
Asimmetrico N4
Bridgestone Potenza
S-02A N3
225/40 ZR 18
(FA)
265/35 ZR 18
(RA)
Continental ContiSportContact2 N2
964 Turbo 3.6 mod. 93 and 94
FA: Data currently not available
RA: https://eprel.ec.europa.eu/qr/595111
964 Turbo 3.6 mod. 93 and 94
FA/RA: Data currently not available
964 Turbo 3.6 mod. 93 and 94
FA/RA: Data currently not available
964 Turbo 3.6 mod. 93 and 94
Michelin Pilot Sport 2 N3
FA: https://eprel.ec.europa.eu/qr/411351
RA: https://eprel.ec.europa.eu/qr/412881
Pirelli P Zero Trofeo R N0
(Ultra High Performance
tires)
964 Turbo 3.6 mod. 93 and 94
FA: https://eprel.ec.europa.eu/qr/621936
RA: https://eprel.ec.europa.eu/qr/621937
Information
N... = Specification code of the tire, e.g. "N0", "N1", "N2" ... The complete "N ..." code of the tires in
question must be shown on the tire sidewall near the tire type designation.
Instructions for correct mounting of the tires are also given on the tire sidewall. If there are no mounting
instructions on the tire sidewall, the tire must be mounted so that the DOT marking is visible from the
outside.
Information
If a tire is damaged and it is not possible to determine with absolute certainty that there is no ply damage
- with all of its consequences - or if the tire was thermally and/or mechanically overloaded due to a loss of
pressure or other prior damage, replace the tire in question for safety reasons.
Repairs to "V", "W", "Y" and "ZR" tires are not permissable, as well as the use of inner tubes in tubeless
tires. Please inform your customers accordingly. It is advisable to mount winter tires at temperatures
below 45° F/7°C , because the driving characteristics of summer tires are reduced at low temperatures.
Extremely low temperatures can cause permanent damage to summer tires.
Jul 30, 2021
Page 4 of 17
AfterSales
Freigabe/Approval
Manufacturer's Certificate
58/20
ENU
4400
4
WARNING
Incorrect tire pressure
•
Uncontrollable vehicle handling
Adjust the tire pressure according to specifications. Never allow the pressure to fall below the minimum
pressure.
Check age of tires. Replace tires that are more than 6 years old.
Perform visual inspections.
Use new rubber valves at every tire change.
Use only tires approved by Porsche.
Wheel
Mounting:
The tightening torque for securing wheels and spacers is 130 Nm (96 ftlb.).
Sizes:
Permissible summer tires and wheel sizes - 911 Carrera 2, 911 Carrera 4, 911 Carrera RS,
911 Speedster (RO = rim offset in mm)
Tires
Notes
205/55 ZR 16 (FA)
225/50 ZR 16 (RA)
6J x 16, RO 52/52.3
205/55 ZR 16 (FA)
8J x 16, RO 52/52.3
245/50 ZR 16 (RA)
205/55 ZR 16 (FA)
245/45 ZR 16 (RA)
7J x 16, RO 55
9J x 16 RO 52.3 (17-mm
spacers on rear axle)
7J x 17, RO 55
205/50 ZR 17 (FA)
255/40 ZR 17 (RA)
8J x 17, RO 52
7J x 17, RO 55
9J x 17, RO 55
AfterSales
Modification “M1”
Snow chains cannot be installed
Not for 964 Carrera 2, 964
Speedster
Modifications “M1/M2”
Snow chains cannot be installed
Only for 964 Speedster and
964 RS America
Modifications “M1/M2”
Snow chains cannot be installed
Only for 964 Carrera RS
Jul 30, 2021
Page 5 of 17
4
Freigabe/Approval
4400
ENU
Manufacturer's Certificate
58/20
Permissible summer tire and wheel sizes for the 911 Turbo, 911 Turbo S, 911 Carrera 2
Cabriolet “Turbo Look”, 911 Carrera 4 Cabriolet “Turbo Look”, 964 America Roadster
Tires
Notes
205/50 ZR 17 (FA)
7J x 17, RO 55
255/40 ZR 17 (RA)
9J x17 RO 55
Modifications “M3/M4”
Check wheel clearance
Snow chains cannot be installed
8J x 17, RO 52
225/45 ZR 17 (FA)
275/35 ZR 17 (RA)
9.5J x 17 RO 68 (17-mm
spacers on rear axle)
225/40 ZR 18 (FA)
7J x 18, RO 55
Only on Turbo 3.6
265/35 ZR 18 (RA)
9J x 18, RO 55
Snow chains cannot be installed
Permissible summer tires and wheel sizes for 911 Turbo 3.6
Tires
225/40 ZR 18 (FA)
8J x 18, RO 52
265/35 ZR 18 (RA)
10J x 18, RO 65/61
Makes/Types:
Comments
Snow chains cannot be installed
Winter tire approval
Tire size
205/55 R 16
M+S (FA, RA)
225/50 R16
M+S (RA)
Tire make and
type
Pirelli W240
Sottozero
Standard II N2
Snow
chain
clearance
(only
without
spacers)
Comments /
Label value (Link to EU database)
964 Carrera 2, 964 Carrera 4, 964
Carrera RS, 964 Speedster
yes
FA, RA:
https://eprel.ec.europa.eu/qr/596139
RA: https://eprel.ec.europa.eu/qr/596138
964 Carrera 2, 964 Carrera 4, 964
Carrera RS, 964 Speedster
205/50 R17
M+S (FA)
255/40 R17
M+S (RA)
Pirelli Winter
Sottozero 3 N2
no
964 Turbo mod. 91 — 92, 964 Turbo S mod.
92, 964 Turbo look mod. 91 — 94
964 Turbo mod. 93 — 94
FA: https://eprel.ec.europa.eu/qr/595707
RA: https://eprel.ec.europa.eu/qr/595709
225/40 R18
M+S (FA)
Jul 30, 2021
Page 6 of 17
Pirelli Winter
Sottozero 3 N4
no
AfterSales
964 Turbo mod. 93 — 94
FA: https://eprel.ec.europa.eu/qr/595710
Freigabe/Approval
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TSB/Document ID: No. 58-20
Replacement Service Bulletin Number:
MFR Communication Date: 2021-07-30
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: TIRES
MFR Component System:
MFR Component Subsystem:
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