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Battery ground strap. Porsche 911 1974-1989 - 91161189900
91161189900/1
Vehicle Group
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
Information
Battery ground strap.
This high-quality replacement for the factory cable connects the battery negative terminal to the body / chassis. It ensures proper electrical grounding for reliable engine starts, charging performance, and system stability.
Fits:
Porsche 911 - 1974 to 1989
Porsche 911 (930) turbo - 1975 to 1977
Diagram ref no 11
Built to original Porsche specifications, this premium replacement provides a clean, low-resistance connection between the battery and chassis. It eliminates voltage drops, improves starting reliability, and protects sensitive electronics — a simple but essential upgrade for any classic Porsche restoration.
Function: Provides low-resistance electrical connection between the battery and chassis
Installation: Direct OE replacement — simple bolt-on fitment, no modification required
Benefits: Restores consistent voltage flow, improves engine start reliability, prevents electrical faults
Why replacement matters:
• Over time, the ground strap can corrode, fray, stretch, or lose integrity, resulting in increased resistance.
• A poor ground connection can cause weak starts, erratic electronics, charging issues, voltage drops, or malfunctions in sensors and control modules.
• Replacing with a high-grade replacement strap restores low-resistance grounding, ensuring stable electrical performance, improved startup reliability, and protection for sensitive electronics.
• A proper ground strap is a simple but critical component — its failure may lead to cascading electrical faults, which can be difficult to diagnose.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161189900
The product you are viewing cross references to these numbers
This high-quality replacement for the factory cable connects the battery negative terminal to the body / chassis. It ensures proper electrical grounding for reliable engine starts, charging performance, and system stability.
Fits:
Porsche 911 - 1974 to 1989
Porsche 911 (930) turbo - 1975 to 1977
Diagram ref no 11
Built to original Porsche specifications, this premium replacement provides a clean, low-resistance connection between the battery and chassis. It eliminates voltage drops, improves starting reliability, and protects sensitive electronics — a simple but essential upgrade for any classic Porsche restoration.
Function: Provides low-resistance electrical connection between the battery and chassis
Installation: Direct OE replacement — simple bolt-on fitment, no modification required
Benefits: Restores consistent voltage flow, improves engine start reliability, prevents electrical faults
Why replacement matters:
• Over time, the ground strap can corrode, fray, stretch, or lose integrity, resulting in increased resistance.
• A poor ground connection can cause weak starts, erratic electronics, charging issues, voltage drops, or malfunctions in sensors and control modules.
• Replacing with a high-grade replacement strap restores low-resistance grounding, ensuring stable electrical performance, improved startup reliability, and protection for sensitive electronics.
• A proper ground strap is a simple but critical component — its failure may lead to cascading electrical faults, which can be difficult to diagnose.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161189900
91161189900
The product you are viewing cross references to these numbers
Price: €22.82
In stock
Related products
Vehicle Group
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 914 (1970-1976)
Information
Battery hold down clamp.
Fits:
Porsche 914 1970-76
Porsche 968 1992-95
Porsche 924 1977-82
Porsche 924 1987-88
Porsche 944 1983-91
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91461123310
The product you are viewing cross references to these numbers
Fits:
Porsche 914 1970-76
Porsche 968 1992-95
Porsche 924 1977-82
Porsche 924 1987-88
Porsche 944 1983-91
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91461123310
91461123310
91461123310-PRM
91461123310PRM
The product you are viewing cross references to these numbers
Price: €10.47
In stock
Vehicle Group
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
Information
Battery ground strap
This OE Match battery ground strap is a replacement earth strap used to connect the battery negative terminal to the vehicle body or chassis ground point. It is designed to match the original-style function and fitment for Porsche 924, 944, and 911 Turbo Flatnose models where this part number is specified.
Fits:
Porsche 924 - 1976 to 1985
Porsche 944 2.5ltr - 1982 to 1985
Porsche 911 turbo "Flatnose" - 1987 to 1989
Diagram ref no 5 (for 911) / 10 (for 924 / 944)
This battery ground strap fits at the battery area, connecting the negative battery terminal to the body or chassis earth point. Depending on the model, it may be located in the front battery compartment or battery mounting area as part of the main vehicle grounding system.
The battery ground strap provides the main electrical return path from the vehicle body back to the battery. A strong and clean ground connection is essential for reliable starting, charging, lighting, instruments, and general electrical system performance.
Functions
• Connects the battery negative terminal to the body or chassis ground point
• Completes the electrical circuit for the starting and charging systems
• Helps provide stable voltage to electrical components
• Supports reliable starter motor operation
• Helps prevent intermittent electrical faults caused by poor grounding
• Restores the correct battery earth connection during repair or restoration
• OE Match replacement for worn, corroded, or damaged original ground strap
Battery ground straps can corrode, fray, loosen, or develop high resistance over time. A weak earth connection can cause slow cranking, starting problems, dim or flickering lights, charging issues, erratic gauges, or intermittent electrical faults. Replacing the ground strap helps restore a secure electrical connection and improves overall reliability.
When to replace
• The original ground strap is corroded, frayed, cracked, or damaged
• The battery negative connection is loose or heavily oxidised
• The car has slow cranking or intermittent starting issues
• Lights, instruments, or electrical systems behave erratically
• Charging or voltage-related faults are present
• The ground strap becomes hot under electrical load
• The vehicle is undergoing battery, wiring, or restoration work
• The original strap is missing or no longer provides a reliable ground
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
477971221
The product you are viewing cross references to these numbers
This OE Match battery ground strap is a replacement earth strap used to connect the battery negative terminal to the vehicle body or chassis ground point. It is designed to match the original-style function and fitment for Porsche 924, 944, and 911 Turbo Flatnose models where this part number is specified.
Fits:
Porsche 924 - 1976 to 1985
Porsche 944 2.5ltr - 1982 to 1985
Porsche 911 turbo "Flatnose" - 1987 to 1989
Diagram ref no 5 (for 911) / 10 (for 924 / 944)
This battery ground strap fits at the battery area, connecting the negative battery terminal to the body or chassis earth point. Depending on the model, it may be located in the front battery compartment or battery mounting area as part of the main vehicle grounding system.
The battery ground strap provides the main electrical return path from the vehicle body back to the battery. A strong and clean ground connection is essential for reliable starting, charging, lighting, instruments, and general electrical system performance.
Functions
• Connects the battery negative terminal to the body or chassis ground point
• Completes the electrical circuit for the starting and charging systems
• Helps provide stable voltage to electrical components
• Supports reliable starter motor operation
• Helps prevent intermittent electrical faults caused by poor grounding
• Restores the correct battery earth connection during repair or restoration
• OE Match replacement for worn, corroded, or damaged original ground strap
Battery ground straps can corrode, fray, loosen, or develop high resistance over time. A weak earth connection can cause slow cranking, starting problems, dim or flickering lights, charging issues, erratic gauges, or intermittent electrical faults. Replacing the ground strap helps restore a secure electrical connection and improves overall reliability.
When to replace
• The original ground strap is corroded, frayed, cracked, or damaged
• The battery negative connection is loose or heavily oxidised
• The car has slow cranking or intermittent starting issues
• Lights, instruments, or electrical systems behave erratically
• Charging or voltage-related faults are present
• The ground strap becomes hot under electrical load
• The vehicle is undergoing battery, wiring, or restoration work
• The original strap is missing or no longer provides a reliable ground
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
477971221
477971221
The product you are viewing cross references to these numbers
Price: €25.74
In stock