122-H7C3C-04

Service
Technical Information
44/17
ENU
4017
4
Spare Parts Requirements - Trailing Arms on Front Axle/Rear Axle: Observe Specifications
(44/17)
Specifications - 981/982
Model line:
Boxster (981, 982)
Cayman (981, 982)
Model Year:
As of 1997 up to 2017
Subject:
Front axle: Trailing arms (wishbone) and longitudinal arms
Rear axle: Trailing arms (wishbone) and carrier side section
Information:
If the affected axle parts need to be replaced, an old part may still be installed on the opposite
half of the axle.
Different types of axle parts cannot be installed.
A different supplier is now used for some components. This change in supplier has resulted in the use of
different production methods.
Parts Info:
Remedial
Action:
Part No. (old, use up
existing stock)
Part No. (new)
Designation
Qty.
991.341.053.01 /
991.341.053.03
991.341.053.02
 Front-axle trailing
arm
2 ea.
991.341.043.03
991.341.043.04
 Front-axle
longitudinal arm
2 ea.
981.331.053.00
981.331.053.01
 Rear-axle trailing
arm
2 ea.
981.331.051.06
981.331.051.07
 Rear-axle carrier
side section, left
1 ea.
981.331.052.06
981.331.052.07
 Rear-axle carrier
side section, right
1 ea.
In the event of spare parts requirements:
•
If a trailing arm or longitudinal arm on the front axle needs to be replaced,
the existing type must be checked. If the part is an old type with the old Part No.
991.341.053.01/991.341.053.03 or 991.341.043.03, both trailing arms and both
longitudinal arms must be replaced.
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Mar 13, 2020
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Service
4017
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•
•
Technical Information
44/17
If a trailing arm on the rear axle needs to be replaced, the existing type must be checked. If the
part is an old type with the old Part No. 981.331.053.00, both trailing arms must be replaced.
If one of the carrier side sections on the rear axle needs to be replaced, the existing type must
be checked. If the part is an old type with the old Part No. 981.331.051.06 or 981.331.052.06,
both carrier side sections must be replaced.
Specifications - 986
Model line:
Boxster (986)
Subject:
Front axle: Trailing arms (wishbone) and longitudinal arms
Rear axle: Trailing arms (wishbone)
Information:
If the affected axle parts need to be replaced, an old part may still be installed on the opposite
half of the axle.
Different types of axle parts cannot be installed.
A different supplier is now used for some components. This change in supplier has resulted in the use of
different production methods.
Parts Info:
Part No. (old, use up
existing stock)
Part No. (new)
Designation
Qty.
996.341.043.06 (and
older)
997.331.043.02
 Front-axle
longitudinal arm
2 ea.
996.347.053.17 (and
older)
996.341.053.18
 Trailing arms, front
and rear axle
2/21) ea. (FA/RA)
1) Must be replaced on both sides of axle
Remedial
Action:
In the event of spare parts requirements:
•
•
Mar 13, 2020
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If a trailing arm or longitudinal arm on the front axle needs to be replaced, the existing type
must be checked. If the part is an old type with the old Part No. 996.341.043.06 (and older)
or 996.347.053.17 (and older), both trailing arms and both longitudinal arms must be
replaced.
If a trailing arm on the rear axle needs to be replaced, the existing type must be checked. If the
part is an old type with the old Part No. 996.347.053.17 (and older), both trailing arms must
be replaced.
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Service
Technical Information
44/17
ENU
4017
4
Specifications - 987
Model line:
Boxster (987)
Cayman (987)
Subject:
Front axle: Trailing arms (wishbone) and longitudinal arms
Rear axle: Trailing arms (wishbone)
Information:
If the affected axle parts need to be replaced, an old part may still be installed on the opposite
half of the axle.
Different types of axle parts cannot be installed.
A different supplier is now used for some components. This change in supplier has resulted in the use of
different production methods.
Parts Info:
Remedial
Action:
Part No. (old, use up
existing stock)
Part No. (new)
Designation
Qty.
997.341.043.00
997.341.043.02
 Front-axle
longitudinal arm
2 ea.
997.341.053.04 (and
older)
991.341.053.02
 Front-axle trailing
arm
2 ea.
996.341.053.17 (and
older)
996.341.053.18
 Rear-axle trailing
arm
2 ea.
In the event of spare parts requirements:
•
•
If a trailing arm or longitudinal arm on the front axle needs to be replaced, the existing
type must be checked. If the part is an old type with the old Part No. 997.341.043.00 or
997.341.053.04 (and older), both trailing arms and both longitudinal arms must be
replaced.
If a trailing arm on the rear axle needs to be replaced, the existing type must be checked. If the
part is an old type with the old Part No. 996.341.053.17 (and older), both trailing arms must
be replaced.
Specifications - 987
Model line:
Boxster (987)
Cayman (987)
Subject:
Front axle: Trailing arms (wishbone) and longitudinal arms
Rear axle: Trailing arms (wishbone)
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Information:
ENU
Technical Information
44/17
If the affected axle parts need to be replaced, an old part may still be installed on the opposite
half of the axle.
Different types of axle parts cannot be installed.
A different supplier is now used for some components. This change in supplier has resulted in the use of
different production methods.
Parts Info:
Remedial
Action:
Part No. (old, use up
existing stock)
Part No. (new)
Designation
Qty.
997.341.043.00
997.341.043.02
 Front-axle
longitudinal arm
2 ea.
997.341.053.04 (and
older)
991.341.053.02
 Front-axle trailing
arm
2 ea.
997.331.053.03 (and
older)
981.331.053.01
 Rear-axle trailing
arm
2 ea.
In the event of spare parts requirements:
•
•
If a trailing arm or longitudinal arm on the front axle needs to be replaced, the existing
type must be checked. If the part is an old type with the old Part No. 997.341.043.00 or
997.341.053.04 (and older), both trailing arms and both longitudinal arms must be
replaced.
If a trailing arm on the rear axle needs to be replaced, the existing type must be checked. If the
part is an old type with the old Part No. 997.331.053.03 (and older), both trailing arms must
be replaced.
Specifications - 991
Model line:
911 Carrera (991)
Subject:
Front axle: Wishbone and longitudinal arms
Rear axle: Longitudinal arm mounting
Information:
If the affected axle parts need to be replaced, an old part may still be installed on the opposite
half of the axle.
Different types of axle parts cannot be installed.
A different supplier is now used for some components. This change in supplier has resulted in the use of
different production methods.
Mar 13, 2020
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Technical Information
Parts Info:
Remedial
Action:
44/17
ENU
Part No. (old, use up
existing stock)
Part No. (new)
Designation
Qty.
991.341.053.01 /
991.341.053.03
991.341.053.02
 Front-axle trailing
arm
2 ea.
991.341.043.03
991.341.043.04
 Front-axle
longitudinal arm
2 ea.
991.331.329.02
991.331.329.03
 Rear-axle
longitudinal arm
mounting
2 ea.
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In the event of spare parts requirements:
•
•
If a trailing arm or longitudinal arm on the front axle needs to be replaced,
the existing type must be checked. If the part is an old type with the old Part No.
991.341.053.01/991.341.053.03 or 991.341.043.03, both trailing arms and both
longitudinal arms must be replaced.
If a rear-axle longitudinal arm mounting needs to be replaced, the existing type must be
checked. If the part is an old type with the old Part No. 991.331.329.02, both rear-axle
longitudinal arm mountings must be replaced.
Specifications - 996
Model line:
Carrera (996)
Subject:
Front axle: Trailing arms (wishbone) and longitudinal arms
Rear axle: Trailing arms (wishbone) and longitudinal arms
Information:
If the affected axle parts need to be replaced, an old part may still be installed on the opposite
half of the axle.
Different types of axle parts cannot be installed.
A different supplier is now used for some components. This change in supplier has resulted in the use of
different production methods.
Parts Info:
Part No. (old, use up
existing stock)
Part No. (new)
Designation
Qty.
996.341.043.06 (and
older)
997.331.043.02
 Longitudinal arms,
front and rear axle
2/21) ea. (FA/RA)
996.347.053.17 (and
older)
996.341.053.18
 Trailing arms, front
and rear axle
2/21) ea. (FA/RA)
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Service
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Technical Information
44/17
1) Must be replaced on both sides of axle
Remedial
Action:
In the event of spare parts requirements:
•
If a trailing arm or longitudinal arm on the front or rear axle needs to be replaced, the existing
type must be checked. If the part is an old type with the old Part No. 996.341.043.06 (and older)
or 996.347.053.17 (and older), both trailing arms and both longitudinal arms must be
replaced on both sides of axle.
Specifications - 997
Model line:
Carrera (997)
Subject:
Front axle: Trailing arms (wishbone) and longitudinal arms
Rear axle: Trailing arms (wishbone) and longitudinal arms
Information:
If the affected axle parts need to be replaced, an old part may still be installed on the opposite
half of the axle.
Different types of axle parts cannot be installed.
A different supplier is now used for some components. This change in supplier has resulted in the use of
different production methods.
Parts Info:
Part No. (old, use up
existing stock)
Part No. (new)
Designation
Qty.
997.341.043.00
997.341.043.02
 Front-axle
longitudinal arm
2 ea.
996.341.043.06 (and
older)
997.331.043.02
 Longitudinal arm on
rear axle
2 ea.
996.347.053.17 (and
older)
996.341.053.18
 Trailing arms, front
and rear axle
2/21) ea. (FA/RA)
1) Must be replaced on both sides of axle
Remedial
Action:
Mar 13, 2020
Page 6 of 7
In the event of spare parts requirements:
•
If a trailing arm or longitudinal arm on the front or rear axle needs to be replaced, the
existing type must be checked. If the part is an old type with the old Part No. 997.341.043.00,
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Service
Technical Information
44/17
ENU
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4
996.341.043.06 (and older) or 996.347.053.17 (and older), both trailing arms and both
longitudinal arms must be replaced on both sides of axle.
Important Notice: Technical Bulletins issued by Porsche Cars North America, Inc. are intended only for use by professional automotive technicians who have attended Porsche service training
courses. They are written to inform those technicians of conditions that may occur on some Porsche vehicles, or to provide information that could assist in the proper servicing of a vehicle. Porsche special
tools may be necessary in order to perform certain operations identified in these bulletins. Use of tools and procedures other than those Porsche recommends in these bulletins may be detrimental to the
safe operation of your vehicle, and may endanger the people working on it. Properly trained Porsche technicians have the equipment, tools, safety instructions, and know-how to do the job properly and
safely. Part numbers listed in these bulletins are for reference only. The work procedures updated electronically in the Porsche PIWIS diagnostic and testing device take precedence and, in the event of a
discrepancy, the work procedures in the PIWIS Tester are the ones that must be followed.
© 2020 Porsche Cars North America, Inc.
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