Wiring Harness / Cables

Battery Cable, Repair Kit LHD.
For Left Hand Drive Cars ONLY!

Fits:
Porsche 987.1 Boxster MKI 2005>>2008
Porsche 987.2 Boxster MKII 2009>>2012
Porsche 987.1 Cayman MKI 2006>>2008
Porsche 987.2 Cayman MKII 2009>>2012
Porsche 997.1 Carrera MKI 2005>>2008
Porsche 997.2 Carrera MKII 2009>>2012
Porsche 997.1 Turbo / GT2 MKI 2007>>2009
Porsche 997.2 Turbo / GT2 RS MKII 2010>>2013
Porsche 997 GT3 MKI / MKII 2007>>2011
Cars With Option Codes:
098 - Left-Hand Drive Version

Diagram Ref No 6

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99761290801

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Battery Ground Cable, RHD.

This Porsche Battery Ground Cable, RHD is a genuine OEM electrical cable designed specifically for right-hand drive models only. This heavy-duty cable connects the battery’s negative terminal to the chassis, providing the essential earth/ground connection that keeps your Porsche’s electrical system stable and reliable.

Fits:

• Porsche Boxster 986 2.5L 1997-99
• Porsche Boxster 986 2.7L 1999-02
• Porsche Boxster S 986 3.2L 1999-02
• Porsche Boxster 986 2.7L 2003-04
• Porsche Boxster S 986 3.2L 2003-04
• Porsche Boxster 987 2.7L 2005 -08/08
• Porsche Boxster 987 S 3.2/3.4L 2005-08/08
• Porsche Boxster 987 MKII 2.9L 2009-2012
• Porsche Boxster S 987 MKII 3.4L 2009-2012
• Porsche 996 C2 3.4L 1997-08/01
• Porsche 996 C4 3.4L 1997-08/01
• Porsche 996 C2 3.6L 09/01-2005
• Porsche 996 C4 3.6L 09/01-2005
• Porsche 996 C4S 3.6L 09/01-2005
• Porsche 996 TURBO 2000-05
• Porsche 996 GT2 2001-05
• Porsche 996 GT3 MKI 1999-02
• Porsche 996 GT3 MKII 2003>>
• Porsche 997 Carrera 2 3.6L 2005-08
• Porsche 997 Carrera 2S 3.8L 2005-08
• Porsche 997 Carrera 4 3.6L 2005-08
• Porsche 997 Carrera 4S 3.8L 2005-08
• Porsche 997 TURBO 2007-09
• Porsche 997 GT3 2007-09
• Porsche 997 GT2 2007-09
• Porsche 997 MKII Carrera C2 3.6L 2009-12
• Porsche 997 MKII Carrera C4 3.6L 2009-12
• Porsche 997 MKII Carrera C2S 3.8L 2009-12
• Porsche 997 MKII Carrera C4S 3.8L 2009-12
• Porsche 997 MKII GT3 2010-11
• Porsche 997 MKII Turbo 2010-13
• Porsche 997 MKII GT2 RS 2011-13
• Porsche Cayman 2.7L 987C 2006-08
• Porsche Cayman S 3.4L 987C 2005-08
• Porsche Cayman 2.9L 987C MKII 2009-12
• Porsche Cayman S / R 3.4L 987C MKII 2009-12

What This Product Does:
The battery ground cable is a heavy-duty electrical cable that connects the negative terminal of the battery to the chassis/engine ground. On right-hand drive (RHD) Porsche models, it is designed with the correct length and routing for proper fitment.

Functions:

• Provides the primary earth/ground connection for the vehicle’s electrical system.
  
• Ensures stable current flow between the battery, starter, alternator, and electronic modules.
• Helps deliver consistent starting power and prevents voltage drops.
• Protects sensitive electronic components by maintaining proper grounding.

Symptoms Of A Faulty Battery Ground Cable:

• Hard starting or intermittent no-start condition.
  
• Electrical faults such as flickering lights or warning messages.
  
• Battery not charging properly due to poor grounding.
  
• Slow cranking from the starter motor.
  
• Visible corrosion or fraying on the cable or terminals.
  
  

Why Replacement Matters:
The ground cable is a critical link in the electrical system. A poor connection can cause starting issues, electrical malfunctions, or even damage to control modules.
Replacing it with a genuine OEM cable ensures:

• Correct fitment for RHD Porsche models.
• Reliable starting and charging performance.
• Long-term corrosion resistance and durability.
• Protection for sensitive electronics.

Diagram Ref No 1

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99761109100

The product you are viewing cross references to these numbers

Engine Ground Cable. 

Fits:
Porsche 987 Boxster 2005>>2005
Porsche 996 Carrera 1998>>2005
Porsche 997.1 Carrera MKI 2005>>2008

Diagram Ref No 25

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99760703000

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Wiring Harness For Starter Motor and Alternator Manual Cars.

Fit:
Porsche 997 C2/C4/C2S/C4S 2005-08 Manual cars

Diagram ref no 14

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99760701903

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Wiring harness for starter motor and alternator, Tiptronic cars

Fit:
Porsche 997 C2/C4/C2S/C4S 2005-08 Tiptronic cars

Diagram ref no 14

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99760701804

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