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Relays / Fuses

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DISPLAYING 33 to 48 (of 55 products)
1 2 3 4
Special Order item
92861811100
Product Information
Product Information
Headlight Washer System Relay.

porsche

Fits:
Porsche 911 1974-89
Porsche 911 (930) Turbo 1975-89
Porsche 964 1989-94
Porsche 914 1974-76
Porsche 924 1979-85
Porsche 924 S 1986-88
Porsche 928 1978-95
Porsche 944 1982-91
Porsche 968 1992-95

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Related, superseded, cross reference or alternative numbers for comparison.

92861811100
92861811100

The product you are viewing cross references to these numbers
Special Order item
443963141
Product Information
Product Information
Horn relay.

porsche

Fits:

Porsche 924 1980-85
Porsche 924s 1986-88
Porsche 944 1982-85 For cars with chassis 94CN409210 >> onwards


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Related, superseded, cross reference or alternative numbers for comparison.

443963141
443963141

The product you are viewing cross references to these numbers
Special Order item
477955531B
Product Information
Product Information
Intermittent wiper relay.

porsche

Fits:
Porsche 924 1976-85
Porsche 924S 1986-88
Porsche 944 1982-85

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Related, superseded, cross reference or alternative numbers for comparison.

477955531B
477955531A
477955531A
477955531B

The product you are viewing cross references to these numbers
99361510101/1
Product Information
Product Information
Intermittent/pulse wiper relay for the front windscreen wipers on many 1980s–1990s Porsche models. Controls the wiper intermittent (delay) function and the pulse/park behaviour — direct OEM fit for 928, 944, 968, 964 and 993 applications. Part number: 993.615.101.01 / 99361510101.

oematch

Fits:

  • ·         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
  • ·         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 928 4.5L 1978-82
  • ·         Porsche 928S 4.7L 1981-83
  • ·         Porsche 928S2 4.7L 1984-86
  • ·         Porsche 928S4 5.0L 1987-92
  • ·         Porsche 928GT 5.0L 1989-91
  • ·         Porsche 928GTS 5.4L 1992-95


Why replace this relay?

Loss of intermittent function — the most common symptom: intermittent (delay) wipe stops working while continuous speeds still operate. Many owners find the delay knob produces one sweep only or nothing.

Wipers stuck on / won’t stop — relay contacts or internal timer failure can leave wipers running or behaving unpredictably. Forum reports show both “wipers won’t turn off” and “wipers run continuously” symptoms tied to the relay or associated wiring.

Intermittent clicking / no response — relay may stop clicking or click but not switch the motor circuit due to worn contacts or internal failure. Swapping relay is a common test. 

Common issues & fault causes

Worn internal contacts / timer fault — relay internals degrade with age and use, causing loss of the pulse/interval function.

Corroded connector or fuse/relay carrier contacts — poor connection at the fuse/relay panel can mimic relay failure; cleaning contact points often fixes intermittent faults.

Related component faults — sometimes the wiper stalk/switch or the wiper motor itself causes similar symptoms; common troubleshooting is to test/swap the relay first, then check the stalk and motor.

Shorts / blown fuses — seized motor or wiring short can blow fuses or overload circuits; a failing relay can also cause abnormal current behaviour. 



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

99361510101
99361510101
99361510100
92861510101
5WG 003 620-097
5WG003620097
5WG003620091
5WG 003 620-091

The product you are viewing cross references to these numbers
Special Order item
477955531B::1
Product Information
Product Information
Interval relay for windscreen wiper

porsche

Fits:
Porsche 924 (1976 - 1985) except Turbo
Porsche 924 S (1986 - 1988)
Porsche 944 (1982 - 1985)

* 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.

477955531B
477955531A
477955531B

The product you are viewing cross references to these numbers
90161233000/1
Product Information
Product Information
Multi plug socket 6 pole. 2 pieces. Male and Female connectors.

Fits:
Porsche 911 1970-89
Porsche 964 1990-94
Porsche 968 1992-95
Porsche 914 1970-76
Porsche 924S 1986-88
Porsche 944 1982-91

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

90161233000
90161233000

The product you are viewing cross references to these numbers
99965701690/1
Product Information
Product Information
Relay 12V 30/40A - Various applications

oematch

Fits:
Porsche 924S - 1986 - 1988 (electric sunroof)
Porsche 944 - 1982 to 1991 (electric sunroof)
Porsche 968 - 1992 to 1995 (electric sunroof and cabriolet roof)
Porsche 993 - 1996 to 1997 ("CDN" location R32)
Porsche 997.1 - 2005 to 2008 (Engine bay fan, location S8)
Porsche 991.1 / 991.2 - 2012 to 2019 (emergency operation cover, location K3 and rear spoiler, location K4)
Porsche 981 Boxster / Cayman - 2012 to 2016 (emergency operation cover, location K3) 
Porsche 718 Boxster / Cayman - 2017 Onwards (emergency operation cover, location K3) 
Porsche 9J1 Taycan - 2020 to 2024



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

99965701690
99965701690
99965701190

The product you are viewing cross references to these numbers
Special Order item
92861551100
Product Information
Product Information
Relay bracket

porsche

Fits:
Porsche 964 1989-94
Porsche 968 1992-95
Porsche 944 1989-91

Related reference numbers
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92861551100
92861551100

The product you are viewing cross references to these numbers
Special Order item
477971923
Product Information
Product Information
Relay Cap Cover.

porsche

Fits:
Porsche 924 1976-85
Porsche 924 S 1986-88
Porsche 944 1982-91

Click 'Zoom in' for large parts diagram.
Diagram ref no 22

Related reference numbers
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477971923
477971923

The product you are viewing cross references to these numbers
Special Order item
141951253B
Product Information
Product Information
Relay.

Fits:
Porsche 924 1976>>1985
Porsche 924s 1986>>1988
Porsche 928 1978>>1995
Porsche 944 1982>>1991
Porsche 964 1989>>1994
Porsche 968 1992>>1995
Porsche 993 1994>>1998

Relay For Numerous Purposes:
Horn, Additional Headlamp, Rear Window Heating, Fog Lamp, Starter Motor, Electric Window, Air Conditioning, Stop Light Etc.

4 Pin Relay No 53

* 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.

141951253B
141951253B
171937503
141951253A

The product you are viewing cross references to these numbers
141951253B/1
Product Information
Product Information
Relay.

bosch

Fits:
Porsche 924 1976-85
Porsche 924s 1986-88
Porsche 928 1978-95
Porsche 944 1982-91
Porsche 964 1989-94
Porsche 968 1992-95
Porsche 993 1994-98

Relay for numerous purposes:
Horn, Additional headlamp, Rear window heating, Fog lamp, Starter motor, Electric window, Air conditioning, Stop light etc.

4 pin relay No 53

* 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.

141951253B
141951253B
171937503
0332019103

The product you are viewing cross references to these numbers
141951253B/2
Product Information
Product Information
Relay.

oematch

Fits:
Porsche 924 1976-85
Porsche 924s 1986-88
Porsche 928 1978-95
Porsche 944 1982-91
Porsche 964 1989-94
Porsche 968 1992-95
Porsche 993 1994-98

Relay for numerous purposes:
Horn, Additional headlamp, Rear window heating, Fog lamp, Starter motor, Electric window, Air conditioning, Stop light etc.

4 pin relay No 53

* 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.

141951253B
141951253B
171937503

The product you are viewing cross references to these numbers
Special Order item
N0171214
Product Information
Product Information
Safety ceramic fuse 16AMP.

porsche

Fits:
Porsche 911 1965-89
Porsche 914 1970-76
Porsche 924 1976-85
Porsche 924S 1986-88
Porsche 944 1982-86
Porsche 928 1978-86

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

N0171214
N0171214

The product you are viewing cross references to these numbers
Special Order item
N0171215
Product Information
Product Information
Safety ceramic fuse 25AMP.

porsche

Fits:
Porsche 911 1965-89
Porsche 914 1970-76
Porsche 924 1976-85
Porsche 924S 1986-88
Porsche 944 1982-86
Porsche 928 1978-86

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

N0171215
N0171215

The product you are viewing cross references to these numbers
Special Order item
90017300690
Product Information
Product Information
Safety ceramic fuse 5AMP.

porsche

Fits:
Porsche 911 1965-89
Porsche 914 1970-76
Porsche 924 1976-85
Porsche 924S 1986-88
Porsche 944 1982-86
Porsche 928 1978-86

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

90017300690
90017300690

The product you are viewing cross references to these numbers
Special Order item
N0171211
Product Information
Product Information
Safety ceramic fuse 8AMP.

porsche

Fits:
Porsche 911 1965-89
Porsche 914 1970-76
Porsche 924 1976-85
Porsche 924S 1986-88
Porsche 944 1982-86
Porsche 928 1978-86
DISPLAYING 33 to 48 (of 55 products)
1 2 3 4
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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