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- 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 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 996 GT3 RS 2003-04
- Porsche 991 GT3 Cup 2016
- Porsche 991 GT3 Cup 2018-2019
Battery to Power Distributor Cable for Left Hand Drive (LHD)
This cable links the battery with the power distributor on the listed 986 Boxster, 996 and 991 GT3 Cup models.
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 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 996 GT3 RS 2003-04
- Porsche 991 GT3 Cup 2016
- Porsche 991 GT3 Cup 2018-2019
Diagram Ref No 4
What This Product Does
The cable carries battery power into the distribution assembly associated with the starter and generator. It is a battery connection cable, rather than a complete vehicle wiring loom, battery or relay.
Functions
- Transfers current between battery and distributor.
- Connects the battery supply to the starting and charging assembly.
- Retains the vehicle-specific cable connection layout.
Technical Details
- Brand: genuine Porsche; identification number: 99661209009.
- Internal diagram descriptions identify a battery/power-distributor cable; Cup diagrams use the designation AS BATTERY CABLE.
- Recorded requirement: one cable in each applicable assembly.
- Diagram remarks retained for identification: /LL; /LL -02; model notation M002.
- Road-car diagram coverage: 996 1998–05; 996 TURBO 2001–05; 996 GT3-1 1999–05; 986 Boxster / Boxster S 1997–04.
- Competition diagram coverage: Battery and Main Relay assemblies for 991 GT3 CUP 2016 and 2018–2019.
Symptoms of Fault
- Starting failure that occurs intermittently.
- Sluggish cranking with an otherwise healthy battery.
- Excessive voltage loss under electrical load.
- Corroded connections, damaged insulation or evidence of overheating.
- Electrical interruptions associated with insecure terminals.
Why Replacement Matters
Cable deterioration or terminal resistance can interrupt the battery supply. Replacement is appropriate when inspection and electrical testing establish that this connection is responsible. Check the battery, charging output, earth paths and associated terminals first, rather than assuming every low-voltage symptom requires a new cable.
FAQs
How should a suspected cable problem be checked?
Assess battery health and charging operation, then test voltage loss along the suspect connection under load.
Which surrounding components need attention?
Inspect the distributor connections, terminal protection and fastening hardware for damage or insecure attachment.
Is suitability determined by chassis code alone?
No. Match 99661209009 to the precise application, production details and relevant diagram notation before fitting.
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