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Relays / Fuses
- 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 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Fits:
Porsche 911 - 1970 to 1989
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161209303
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
Fits:
Porsche 911 - 1965 to 1973
The fuse board cover for a Porsche 911/912 is an important component as it protects the fuses and electrical components from dust, dirt and moisture. It is also essential for the safety of the vehicle's electrical system.
The cover should be securely fastened and free of damage or cracks. If the cover is missing or damaged, it should be replaced as soon as possible to avoid potential electrical problems.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90155146500
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)
Fits:
Porsche 911 - 1965 to 1973
The fuse board cover for a Porsche 911/912 is an important component as it protects the fuses and electrical components from dust, dirt and moisture. It is also essential for the safety of the vehicle's electrical system.
The cover should be securely fastened and free of damage or cracks. If the cover is missing or damaged, it should be replaced as soon as possible to avoid potential electrical problems.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90155146500
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)
The OE Match Fuse Box 8-Pole is a premium-quality replacement electrical distribution component designed to securely house and connect eight fuse circuits on compatible Porsche models. Manufactured to OE specifications for fit, functionality and durability, this fuse box provides reliable electrical distribution while protecting individual vehicle circuits from overloads and short circuits.
Fits:
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Constructed from high-quality heat-resistant insulating materials with corrosion-resistant electrical terminals, the fuse box is engineered to withstand vibration, temperature fluctuations and long-term electrical loads. Precision-manufactured for direct OE-style installation, it restores dependable electrical connections and is ideal for replacing cracked, corroded or damaged original fuse boxes during restoration or electrical system repairs.
What This Product Does:
- Houses and secures eight individual fuse circuits.
- Distributes electrical power throughout the vehicle.
- Protects electrical circuits from overloads and short circuits.
- Provides secure mounting for ceramic fuses.
- Maintains reliable electrical connections.
- Supports the correct operation of multiple vehicle electrical systems.
- Restores factory-style electrical distribution.
- Forms an essential part of the vehicle's electrical system.
Symptoms Of Wear Or Failure:
- Intermittent electrical faults.
- Loss of power to one or more vehicle systems.
- Corroded or burnt fuse terminals.
- Loose-fitting ceramic fuses.
- Cracked or damaged fuse box housing.
- Overheated electrical connections
- .Difficulty maintaining reliable fuse contact.
- Flickering lights or intermittent accessory operation.
- Signs of corrosion caused by moisture.
- Electrical failures despite good fuses.
Why Replacement Matters:
- The fuse box is central to the vehicle's electrical system and is exposed to heat, vibration, moisture and continuous electrical loading. Over time, terminal corrosion, heat damage and ageing of the housing can reduce electrical conductivity and lead to unreliable circuit protection.
- A deteriorated fuse box can cause intermittent electrical faults, voltage drops and poor connections that affect lighting, ignition, instruments and other essential vehicle systems. Burnt or corroded terminals may also create excessive resistance, increasing the risk of overheating and further electrical damage.
- Replacing a worn or damaged fuse box restores reliable electrical distribution and proper fuse retention. The OE Match replacement provides factory-style fitment, durable heat-resistant construction and corrosion-resistant terminals, helping maintain dependable electrical performance, improve system reliability and preserve the originality of your Porsche.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161208700
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Restore the reliability of your Porsche's electrical system with this OE Match 8-Pole Fuse Box, manufactured as a direct replacement. Produced to OE-style specifications, this fuse box is designed to securely house and protect up to eight individual fuses while providing organised distribution of electrical power to the vehicle's essential circuits.
Fits:
- 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)
Diagram Ref No 14
Over time, the original fuse box can suffer from corrosion, heat damage, cracked housings, worn fuse terminals, or poor electrical connections caused by age and moisture. These issues can lead to intermittent electrical faults, unreliable circuit protection, and difficulty maintaining the vehicle's electrical system. Replacing a worn or damaged fuse box restores dependable electrical connections and helps ensure the correct operation of protected circuits. This OE Match 8-pole fuse box is ideal for routine maintenance, electrical system repairs, and Porsche restoration projects.
What This Product Does:
- Houses and secures up to eight electrical fuses.
- Distributes electrical power to protected vehicle circuits.
- Provides reliable electrical connections.
- Helps protect wiring and electrical components from overloads.
- Replaces cracked, corroded, or damaged original fuse boxes.
- Restores safe and organised electrical distribution.
- Provides an OE-style fit and dependable quality.
Symptoms Of Wear Or Failure:
- Intermittent electrical faults.
- Corroded fuse terminals.
- Cracked or damaged fuse box housing.
- Loose or poor fuse connections.
- Heat damage around the fuse contacts.
- Difficulty maintaining reliable electrical circuits.
- Electrical restoration requiring replacement fuse panel components.
Why Replacement Matters:
- The fuse box is a critical part of the vehicle's electrical system, providing secure mounting for the fuses while distributing electrical power safely throughout the vehicle. A damaged or corroded fuse box can create high-resistance connections, intermittent electrical faults, and unreliable circuit protection, potentially affecting multiple vehicle systems.
- Replacing a worn fuse box restores dependable electrical distribution, improves connection quality, and helps protect the vehicle's wiring and electrical components from unnecessary faults. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match 8-Pole Fuse Box provides the correct fit, reliable performance, and long-lasting durability, making it an excellent choice for Porsche maintenance, repairs, and restoration projects.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161208701
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)
Fits:
Porsche 911 (930) Turbo 1978-84
Click 'Zoom in' for large parts diagram.
Diagram ref no 6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93061216102
The product you are viewing cross references to these numbers
- Porsche 911 1978-1989 3.3L Turbo (930)

Fits:
Porsche 911 (930) Turbo 1978-84
Click 'Zoom in' for large parts diagram.
Diagram ref no 6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93061216102
The product you are viewing cross references to these numbers
- Porsche 911 1978-1989 3.3L Turbo (930)
Fits:
Porsche 911 1965-73
Diagram ref no 20
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161010101
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)
Protect your classic Porsche's electrical system with this OE Match Fuse Box Cover, manufactured as a direct replacement. Produced to OE-style specifications, this cover fits securely over the fuse box, shielding the fuses and electrical connections from dirt, dust, moisture, and accidental contact while maintaining the original factory appearance.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Diagram Ref No 20
Over time, original fuse box covers can become cracked, warped, faded, or go missing altogether. Without adequate protection, the fuse box and its electrical components are more vulnerable to contamination and damage. This OE Match replacement restores both protection and the authentic appearance, making it ideal for routine maintenance and concours-quality restoration projects.
What This Product Does:
- Protects the fuse box from dirt, dust, and moisture.
- Shields electrical connections from accidental contact.
- Helps maintain a clean and organised electrical compartment.
- Reduces exposure to contaminants that may affect electrical performance.
- Restores the original factory appearance of the fuse box.
- Fits securely for reliable long-term protection.
- Replaces a cracked, damaged, or missing original cover.
Symptoms Of Wear Or Failure:
- A cracked or broken fuse box cover.
- Missing fuse box cover.
- Warping or distortion preventing a secure fit.
- Faded or heavily worn appearance.
- Loose-fitting cover.
- Broken retaining clips or mounting points.
- Dirt or moisture collecting around the fuse box.
- Exposed fuses or electrical connections.
- Damage caused by accidental contact with the fuse box.
- General deterioration due to age or heat.
Why Replacement Matters:
- Although simple in design, the fuse box cover provides essential protection for your Porsche's electrical system. A damaged or missing cover leaves the fuse box exposed to moisture, dirt, and accidental contact, increasing the risk of corrosion, electrical faults, and premature component wear.
- Replacing the fuse box cover helps preserve the condition of the electrical system, keeps the fuse box clean and protected, and restores the correct factory appearance. An OE Match replacement ensures the proper fit and finish, making it an ideal choice for both everyday maintenance and high-quality restoration of your classic Porsche.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161010101
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)

Fits:
Porsche 911 SC 1978-83
- Porsche 911 1978-1983 3.0L / SC
Fits:
Porsche 911 - 1965 to 1968
Diagram ref no 10
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90161280120
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
Fits:
Porsche 911 Cabriolet 3.2L 1987-89 - Only for models with electrical hood operation (M439).
Click 'Zoom in' for large parts diagram.
Diagram ref no 4A
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92861247900
The product you are viewing cross references to these numbers
- Porsche 911 1987-1989 3.2L G50
Brand: Classic Retrofit
Fits:
Porsche 911 1974-89 including Turbo
Click 'Zoom in' for large parts diagram.
Diagram ref no 18
For Installation Guide CLICK HERE
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161209306
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)
Brand: Classic Retrofit
In the kit you get the following items:
• 21 way Fuse panel.
• LED Fuse failure indicators
• Integrated headlamp relays
• Mounting kit (gasket and standoffs)
• Pack of fuses (6 x 25, 6 x 15A, 6 x 7.5A, 6 x 5A)
Replacement Fuse panel installed. No drilling, no crimping, no soldering.
Fits:
Porsche 911 1974-89 including Turbo
For Installation Guide CLICK HERE
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161208699
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)
- Porsche 911 1978-1989 3.3L Turbo (930)
The OE Match Fuse Box 10-Pole is a premium-quality replacement electrical distribution component designed to securely house and connect ten fuse circuits on compatible Porsche models. Manufactured to OE specifications for fit, functionality and durability, this fuse box ensures reliable electrical power distribution while protecting individual circuits from overloads and short circuits.
Fits:
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Constructed from high-quality heat-resistant insulating materials with corrosion-resistant electrical terminals, the fuse box is engineered to withstand vibration, temperature fluctuations and continuous electrical loads. Precision-manufactured for direct OE-style installation, it restores dependable electrical connections and reliable fuse retention, making it ideal for replacing cracked, corroded or damaged original fuse boxes during restoration or electrical system repairs.
What This Product Does:
- Houses and secures ten individual fuse circuits.
- Distributes electrical power throughout the vehicle.
- Protects electrical circuits from overloads and short circuits.
- Provides secure mounting for ceramic fuses.
- Maintains reliable electrical connections.
- Supports the correct operation of multiple vehicle electrical systems.
- Restores factory-style electrical distribution.
- Forms an essential part of the vehicle's electrical system.
Symptoms Of Wear Or Failure:
- Intermittent electrical faults.
- Loss of power to one or more electrical systems.
- Corroded or burnt fuse terminals.
- Loose-fitting ceramic fuses.
- Cracked or damaged fuse box housing.
- Overheated electrical connections.
- Difficulty maintaining reliable fuse contact.
- Flickering lights or intermittent accessory operation.
- Signs of corrosion caused by moisture.
- Electrical faults despite serviceable fuses.
Why Replacement Matters:
- The fuse box is a vital component of the vehicle's electrical system and is continually exposed to heat, vibration, moisture and long-term electrical loading. Over time, the electrical terminals can corrode, connections may loosen and the housing can deteriorate, resulting in increased electrical resistance and unreliable circuit operation.
- A worn fuse box can cause intermittent electrical faults affecting lighting, ignition, instrumentation, heating and other essential systems. Damaged or corroded terminals may also generate excessive heat, potentially leading to further wiring damage and difficult-to-diagnose electrical problems.
- Replacing a worn or damaged fuse box restores reliable electrical distribution and proper circuit protection. The OE Match replacement provides factory-style fitment, durable heat-resistant construction and corrosion-resistant terminals, helping ensure dependable electrical performance, improved system reliability and the preservation of your Porsche's original electrical system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161208600
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Fits:
Porsche 911 1974>>1986 (Including Turbo)
Diagram Ref No 13
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161208601
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 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
-
electrical components for air conditioner 911 1978-83 813-40
-
battery, fuse box 911 1978-83 902-00
-
mounting plate, relay, sender, fanfare 911 1978-83 903-00
-
electrical components for air conditioner 911 1987-89 813-40
-
control units, relay, fuse box 911 1987-89 902-00
-
electrical components for air conditioner 911 1984-86 813-40
-
Mounting plate 911 1970-73 901-05
-
grommets connector 911 1970-73 902-05
-
Battery mounting plate 911 1974-77 902-00
-
Mounting plate starter switch unit 911 1974-77 902-05
-
grommets connector 911 1965-69 902-10
-
Air conditioner, electrical components 911 1974-77 813-50
-
air conditioner, electrical components 911 TURBO 1975-77 813-50
-
battery mounting plate 911 TURBO 1975-77 902-00
-
mounting plate, starter, switch unit 911 TURBO 1975-77 902-05
-
control unit, relay, fuse box 911 1984-86 902-00
Relays and Fuses – Electrical Protection and Performance for Porsche Vehicles
Relays and fuses are critical components in your Porsche’s electrical system, ensuring that power is delivered safely and reliably to every circuit. From the ignition and lighting systems to the fuel pump and cooling fans, these components protect wiring and electrical modules from overload, short circuits, and potential failure.
At Design911, we stock a comprehensive selection of genuine and high quality relays and fuses for all Porsche models - including 911, Boxster, Cayman, Cayenne, Macan, and Panamera. Each part is built to the highest standards to ensure dependable performance and precise compatibility with your vehicle’s electrical system.
What Do Relays and Fuses Do?
Fuses act as the first line of defence in your vehicle’s electrical circuits. They break the circuit when current exceeds safe levels, preventing damage to components or wiring.Relays act as electronic switches that control high-current devices using low-current signals. They allow systems like headlights, fuel pumps, fans, and wipers to operate efficiently without overloading the control switches.
Together, they form a vital network that maintains safety, functionality, and reliability across your Porsche’s electrical system.
Why Do Relays and Fuses Fail?
Over time, electrical components are subject to wear, heat,
and environmental factors that can lead to failure. Common causes include:
- Overheating
or overcurrent loads blowing the fuse.
- Aging
or corroded relay contacts leading to intermittent operation.
- Moisture
ingress or corrosion within the fuse box or relay socket.
- Vibration
or mechanical stress loosening connections.
- Electrical short circuits caused by wiring faults or damaged insulation.
Symptoms of faulty relays or fuses can include malfunctioning lights, non-start conditions, intermittent accessory operation, or completely dead electrical systems.
Why Replace Faulty Relays and Fuses?
Replacing worn or damaged relays and fuses is essential to maintain your Porsche’s electrical integrity and prevent more serious system failures. Using quality replacements ensures proper current flow, system protection, and long-term reliability.
Benefits of replacement include:
Restored
function of electrical systems and accessories.
Protection
from wiring damage or electrical fires.
Enhanced
safety and dependability.
High-level
quality and fitment for lasting performance.
Every relay and fuse in this range is precision-tested and manufactured to match factory specifications, ensuring seamless compatibility and peace of mind on the road.