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Relays / Fuses

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DISPLAYING 65 to 80 (of 96 products)
<< 3 4 5 6
91161209306/2
Product Information
Product Information
Rear 3 way fuse panel with cover. 

oematch

Fits:
Porsche 911- 1974 to 1989

Click 'Zoom in' for large parts diagram.
Diagram ref no 2



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91161209306
91161209306
91161209307
91161209305

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91161209306
Product Information
Product Information
Rear 3 way fuse panel. 

porsche

Fits:
Porsche 911- 1974 to 1989

Click 'Zoom in' for large parts diagram.
Diagram ref no 2



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Related, superseded, cross reference or alternative numbers for comparison.

91161209306
91161209306
91161209307
91161209305

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93061010503
Product Information
Product Information
Rear fuse panel cover. 

porsche

Fits
Porsche 911 - 1975 to 1989
Porsche 911 turbo - 1975 to 1989

Click 'Zoom in' for large parts diagram.
Diagram ref no 20



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93061010503
93061010503
91161010504

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91161510902/1
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Product Information
Relay black round for horns/lights etc.

Fits:
Porsche 911 1969-89
Porsche 914 1970-76

FOR:
- horn
- blower
- headlight flasher
- fog lamp
- ignition coil
- series resistor
- injection system
- windscreen & rear window heating (100W)
- cigarette lighter
- high beam etc.

* Please check and match the part number of your relay in your car before ordering.

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91161510902
91161510901
911.615.109.01
91161510902
90161510903
91161510900
91163190200
91163190300
91163190500

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91161510902
Product Information
Product Information
Relay black round for horns/lights etc.

Fits:
Porsche 911 1969-89
Porsche 914 1970-76

FOR:

- horn
- blower
- headlight flasher
- fog lamp
- ignition coil
- series resistor
- injection system
- windscreen & rear window heating (100W)
- cigarette lighter
- high beam etc.

* Please check and match the part number of your relay in your car before ordering.

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Related, superseded, cross reference or alternative numbers for comparison.

91161510902
91161510901
911.615.109.01
91161510902
90161510903
91161510900
91163190200
91163190300
91163190500

The product you are viewing cross references to these numbers
Special Order item
91161001301
Product Information
Product Information
Relay carrier plate.

porsche

Fits:
Porsche 911 Carrera 1985-89
not for Turbo

Click 'Zoom in' for large parts diagram.
Diagram ref no 14

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91161001301
91161001301

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90161511101
Product Information
Product Information
Relay for injection pump.

porsche

Fits:
Porsche 911 E/S 1969-73
Porsche 911 T 1970-73

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90161511101
90161511101
90161511100

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90161511101/1
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Product Information
Relay for injection pump.

bosch

Fits:
Porsche 911 E/S 1969-73
Porsche 911 T 1970-73

Rated current: 2,5 A
Rated Voltage: 12 V
Number of Poles: 4 terminal
Relay function: Normally closed contact
Housing Type: Aluminium Housing
Protection Type (IP Code): IP53
Temperature range from: -40 °C
Temperature range to: 85 °C
Colour: Aluminium
Length: 70 mm
Width: 25 mm
Height: 88 mm

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90161511101
90161511101
90161511100

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PCG95125300/1
Product Information
Product Information
Relay for lambda sensor. 

oematch

Fits:
Porsche 3.2 Carrera - 1984 to 1986

For cars with catalytic converter

Click 'Zoom in' for large parts diagram.
Diagram ref no 13



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PCG95125300
PCG95125300

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91161810201
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Product Information
Relay for seat belt.

porsche

Fits:
Porsche 911 1974-89
Porsche 911 Turbo 3.0 / 3.3L 1975-89

* Please check and match the part number of your relay in your car before ordering.

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91161810201
91161810201

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90161510200/1
Product Information
Product Information
Relay W-529A Black for horn, coil, heater and air conditioning. 

Fits:
Porsche 911 - 1965 to 1973
Porsche 912 - 1965 to 1969

Also known as W-529A, the black relay is used for the horn, ignition coil, heater, and in 1969 the air conditioner. This relay package is designed with modern ISO 30A Panasonic relays and transient voltage suppression to eliminate voltage spikes. This will result in prolonged longevity of the relay contacts and coil.
  • Cover is made from a robust PA12 (Nylon) that is durable and chemically resistant
  • Input voltage: 12v
  • Compatible with OE covers

Diagram ref no 53



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90161510200
90161510200
91161510300
91161510301
91161510302

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90161510600/1
Product Information
Product Information
Relay W-595A Yellow hazard warning and fog lamps

Fits:
Porsche 911 - 1965 to 1973
Porsche 912 - 1965 to 1969

Also known as W-595A, this yellow relay is used for the hazard warning and fog lamps The relay package is designed with modern ISO 30A Panasonic relays and transient voltage suppression to eliminate voltage spikes. This will result in prolonged longevity of the relay contacts and coil.
  • Cover is made from a robust PA12 (Nylon) that is durable and chemically resistant
  • Input voltage: 12v
  • Compatible with OE covers

Diagram ref no 14



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

90161510600
PCG61510110
90161510600

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90161510400/1
Product Information
Product Information
Relay W-598A/S Grey headlamp changeover.

Fits:
Porsche 911 - 1965 to 1973
Porsche 912 - 1965 to 1969

Also known as W-595A/S, this grey relay is used for the headlamp changeover and is mounted behind the pedalboard. The relay package is designed with modern ISO 30A Panasonic relays and transient voltage suppression to eliminate voltage spikes. This will result in prolonged longevity of the relay contacts and coil.
  • Cover is made from a robust PA12 (Nylon) that is durable and chemically resistant
  • Input voltage: 12v
  • Compatible with OE covers

Diagram ref no 14



Related reference numbers
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90161510400
90161510400
PCG61510110

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90160905305/1
Product Information
Product Information
Relay wiring kit.
This kit containers the wires located on the engine relay panel equipped with the Bosch or Beru resistors.

oematch

Fits:
Porsche 911 1965-68

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90160905305
90160905305

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92861811303/1
Product Information
Product Information
Intensive windscreen washer relay

Fits:
For cars with option code: M286 - Intensified windscreen washer
Porsche 911 1984-89
Porsche 964 1989-94 - relay location/code no.: R53
Porsche 928 1978-82 - relay location/code no.: XX
Porsche 928 1983-86 - relay location/code no.: XV

Porsche 928 1987-91 - relay location/code no.: IX

* Please check and match the part number of your relay in your car before ordering.



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

92861811303
92861811303
92861811302
92861811301
92861811300

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Special Order item
92861811303
Product Information
Product Information
Intensive windscreen washer relay

porsche

Fits:
For cars with option code: M286 - Intensified windscreen washer
Porsche 911 1984-89
Porsche 964 1989-94 - relay location/code no.: R53
Porsche 928 1978-82 - relay location/code no.: XX
Porsche 928 1983-86 - relay location/code no.: XV

Porsche 928 1987-91 - relay location/code no.: IX

* Please check and match the part number of your relay in your car before ordering.



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

92861811303
92861811303
92861811302
92861811301
92861811300

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DISPLAYING 65 to 80 (of 96 products)
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About Relays / Fuses

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.

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