do not press the back button…
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
Batteries & Chargers
By OE Match
- 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)
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
Fits:
Porsche 911 1974-89
Porsche 911 (930) Turbo 1975-77
Porsche 944 1985-88 RHD Cars
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161120900
The product you are viewing cross references to these numbers
- 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)
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
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
Fits:
Porsche 911 SC 1978 - 1983
Porsche 911 Turbo 1978 - 1989
Porsche 911 Carrera 1984 - 1989
Click 'Zoom in' for large parts diagram.
Diagram ref no 9
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161202228
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- 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 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
This OE Match gearbox ground strap is a replacement earth strap used to connect the gearbox/transmission to the vehicle chassis. It provides a reliable electrical ground path between the drivetrain and body, helping the vehicle’s electrical system operate correctly
Fits:
Porsche 911 - 1965 to 1973 Manual and Sportomatic
Porsche 911 - 1974 to 1983 Sportomatic
Porsche 356 - 1950 to 1965
Diagram ref no 62
The gearbox ground strap completes the electrical circuit between the transmission and chassis. A secure ground connection is essential for starter motor performance, charging system function, ignition reliability, lighting, and general electrical stability.
Functions
• Connects the gearbox/transmission to the chassis ground point
• Provides a reliable earth path for the drivetrain
• Supports correct starter motor operation
• Helps maintain stable voltage across the electrical system
• Reduces the risk of intermittent electrical faults
• Helps prevent poor grounding issues during starting and charging
• OE Match replacement for the original gearbox earth strap
Ground straps are exposed to moisture, road dirt, corrosion, vibration, and age-related wear. Over time, the strap can fray, corrode, loosen, or develop high resistance, which may lead to slow cranking, starting problems, charging issues, flickering lights, or unpredictable electrical faults. Replacing the gearbox ground strap helps restore a strong electrical connection and improves overall reliability.
When to replace
• The original ground strap is corroded, frayed, cracked, or damaged
• The gearbox or transmission has been removed or refitted
• The car has slow cranking or intermittent starting issues
• Electrical faults appear after drivetrain or starter work
• Lights, gauges, or ignition systems behave erratically
• The ground strap connection is loose or heavily oxidised
• The vehicle is undergoing restoration or electrical system repair
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99961191820
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- 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)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Fits:
Porsche 911 - 1970 to 1989
Porsche 911 turbo - 1975 to 1989
Porsche 964 - 1989 to 1994 Manual Transmission
Porsche 993 - 1994 to 1998 Manual Transmission
Click 'Zoom in' for large parts diagram.
Diagram ref no 40
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99961192020
The product you are viewing cross references to these numbers
OEMatch Batteries & Chargers — Fit, Function, Confidence
OEMatch Batteries & Chargers for Porsche models provide power management and charging solutions tailored to modern Porsche electrical systems. Choose batteries and smart chargers matched to battery chemistry and usage patterns to maintain starting reliability, protect onboard electronics and reduce the risk of unexpected discharge during storage.
Available Types- AGM batteries for vehicles fitted with absorbent glass mat technology
- Lithium batteries suitable for compatible Porsche models where specified
- Conventional lead-acid batteries for classic and entry-level applications
- Smart chargers and maintainers with multi-stage charging profiles
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original batteries & chargers. OE (Original Equipment) refers to parts matching original specifications for the batteries & chargers and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM batteries & chargers engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. Batteries store and supply electrical energy for engine starting and all onboard systems; chargers restore and maintain that energy, especially during storage. Selecting the correct battery chemistry and a compatible charger helps protect high-current start cycles, sensitive electronics and the vehicle’s charging system.
Benefits Include- Improved starting reliability and stable voltage under load
- Protection against deep discharge and parasitic electrical faults
- Maintained state of charge during long-term storage with smart charging
- Age-related capacity loss reducing available charge
- Parasitic drain from modern electronics and aftermarket devices
- Temperature extremes and inadequate charging accelerating deterioration
- Cost-effective alternatives engineered to original-spec dimensions and tolerances
- Selection across battery chemistries and charging options for Porsche models
- Catalogued part numbers and cross-references to aid correct identification and fitment
