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Porsche > 928 (1978-1995) > 928S4 5.0L 1987-92 > Electrical & Relays >

Relays / Fuses

Relays / Fuses

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DISPLAYING 17 to 32 (of 32 products)
1 2
Headlights / lamps relay. Porsche 928 87-91 - 92861810763, 92861810701
3
Headlights / lamps relay. Porsche 928 87-91
Special Order item
92861810763
Product Information
Product Information
Headlights relay
- location/code no.: XXIII (GB)
- location/code no.: XXIV (GB)

porsche

Fits:
Porsche 928 1987-91

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Related, superseded, cross reference or alternative numbers for comparison.

92861810763
92861810763
92861810701

The product you are viewing cross references to these numbers
High beam relay. Porsche 928 1978-91 - 92861511900, 92861511901
3
High beam relay. Porsche 928 1978-91
Special Order item
92861511901
Product Information
Product Information
High beam relay.

Fits:
Porsche 928 1978 - 1991

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Related, superseded, cross reference or alternative numbers for comparison.

92861511901
92861511900
92861511901

The product you are viewing cross references to these numbers
Intermittent/pulse wiper relay for front windscreen. Porsche 928 / 944 / 968 / 964 / 993 - 99361510101, 99361510100, 92861510101, 5WG 003 620-097, 5WG003620097, 5WG003620091, 5WG 003 620-091 - 1199207800
1
Intermittent/pulse wiper relay for front windscreen. Porsche 928 / 944 / 968 / 964 / 993
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
Power Window Opening Relay. Porsche 928
1
Power Window Opening Relay. Porsche 928
Special Order item
92861512801
Product Information
Product Information
Power Window Opening Relay.

porsche

Fits:
Porsche 928 1978-88

* Please check and match the part number of your relay in your car before ordering.
Rear window wiper relay. Porsche 928 / 964 / 993 / 996 - 92861810400, 92861810402
4
Rear window wiper relay. Porsche 928 / 964 / 993 / 996
Special Order item
92861810402
Product Information
Product Information
Rear window wiper relay. 

porsche

Fits:
Porsche 928 1980-95
Porsche 964 1989-94
Porsche 993 1995-97
Porsche 996 1998-04 COUPE / TARGA
Porsche 996 Turbo 2001-05

* 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.

92861810402
92861810400
92861810402

The product you are viewing cross references to these numbers
Rear window wiper Switch. Porsche 993 - 9936131290101C
1
Rear window wiper Switch. Porsche 993
Special Order item
9936131290101C
Product Information
Product Information
Rear window wiper Switch. Satin black.

porsche

Fits:
Porsche 993 1995-98



* 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.

9936131290101C
9936131290101C

The product you are viewing cross references to these numbers
Relay - Interference Suppression Filter - for Porsche 928 S / S4 / GT / GTS 1985-1995 - 92861822300
3
Relay - Interference Suppression Filter - for Porsche 928 S / S4 / GT / GTS 1985-1995
Special Order item
92861822300
Product Information
Product Information
Relay – provides voltage to the noise suppression choke, which reduces interference from the vehicle's electrical system. 

Fits:
Porsche 928 S 4.7L 1985-86 - Japanese Market Only 

Porsche 928 S4 5.0L 1987-91 
Porsche 928 GT 5.0L 1989-91
Porsche 928 GTS 5.4L 1992-95

Diagram ref. 8.


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

92861822300
92861822300

The product you are viewing cross references to these numbers
Relay electric windows. Porsche 928 US market - 92861512603, 92861512602, 92861512600 - 996491
2
Relay electric windows. Porsche 928 US market
92861512603/1
Product Information
Product Information
Relay electric windows. 


oematch

Fits:
Porsche 928 1983 to 1991
For US market cars

Relay location / code number - VI



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

92861512603
92861512603
92861512602
92861512600

The product you are viewing cross references to these numbers
Relay, Intensive windscreen washer. Porsche 911 / 964 / 928 - 92861811303, 92861811302, 92861811301, 92861811300
1
Relay, Intensive windscreen washer. Porsche 911 / 964 / 928
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

The product you are viewing cross references to these numbers
Relay, intensive windscreen washer. Porsche 928 / 911 / 964 - 92861811303, 92861811302, 92861811301, 92861811300
1
Relay, intensive windscreen washer. Porsche 928 / 911 / 964
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

The product you are viewing cross references to these numbers
Relay. Porsche 924 / 928 / 944 / 964 / 968 / 993 - 141951253B, 171937503, 141951253A
4
Relay. Porsche 924 / 928 / 944 / 964 / 968 / 993
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
Relay. Porsche 924 / 928 / 944 / 964 / 968 / 993 - 141951253B, 171937503, 0332019103
3
Relay. Porsche 924 / 928 / 944 / 964 / 968 / 993
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
Relay. Porsche 924 / 928 / 944 / 964 / 968 / 993 - 141951253B, 171937503
3
Relay. Porsche 924 / 928 / 944 / 964 / 968 / 993
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
Seat belt warning time relay. Porsche 924 / 928 / 944 / 968 / 964 / 993 - 92861810203
5
Seat belt warning time relay. Porsche 924 / 928 / 944 / 968 / 964 / 993
Special Order item
92861810203
Product Information
Product Information
Seat belt warning time relay.

Fits:
Porsche 924 1980-85 (Version for Saudi Arabia, option code: 215)
Porsche 924 S 1986-88 (Version for Saudi Arabia, option code: 215)
Porsche 928 1983-95
Porsche 944 1982-91 (Version for: SA, USA, CDN)
Porsche 968 1992-95
Porsche 964 1989-94 (Version for Saudi Arabia, option code: 215)
Porsche 993 1995-98 (Version for Saudi Arabia, option code: 215)

* 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.

92861810203
92861810203

The product you are viewing cross references to these numbers
Spare bulb and fuse kit (12 Volt). Porsche 928 - PCG92810000, PCG92810001
1
Spare bulb and fuse kit (12 Volt). Porsche 928
Special Order item
PCG92810000
Product Information
Product Information
Spare bulb and fuse kit (12 Volt).

porsche

For use on
Porsche 928 (1978 - 1995)

The set comprises:

2x high beam/low beam light (H4 60/55W),
2x indicator light,
reversing light,
fog light (21W),
2x tail/brake light (21/4W),
1x licence plate light (5W),
2x front position light,
side indicator (4W),
2x rear position light (10W),
2x safety fuse (8A),
2x safety fuse (16A),
2x safety fuse (25A),
2x blade-type fuse (7.5A),
2x blade-type fuse (15A),
2x blade-type fuse (25A),
1x blade-type fuse (30A),
1x blade-type fuse (40A).

The packaging comprises a white Porsche Classic designer metal box with foam inserts.

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

PCG92810000
PCG92810000
PCG92810001

The product you are viewing cross references to these numbers
Spare light box for Porsche 928 - PCG92810000, PCG92810001
5
Spare light box for Porsche 928
Special Order item
PCG92810001
Product Information
Product Information
Set of light bulbs and fuses (12 volts), specially put together for the Porsche 928. The bulbs and fuses are stored in a metal box in Historic Porsche Red, with raised Porsche logo in White and a foam insert inside.

porsche

For use on
Porsche 928 (1978 - 1982)
Porsche 928 S (1980 - 1986)
Porsche 928 S4 (1987 - 1991)
Porsche 928 GTS (1992 - 1995)


Contents of the set:

1x high beam/low beam bulb H4 60/55W
2x indicator, brake, reversing light bulbs P21W
1x tail light bulb R5W
1x tail light bulb R10W
1x rear fog/tail light bulb P21/4W
1x parking light, side indicator bulb T4W
1x number plate light bulb C5W
1x 1A FK2 safety fuse
1x 5A FK2 safety fuse
1x 7.5A FK2 safety fuse
1x 10A FK2 safety fuse
1x 15A FK2 safety fuse
1x 20A FK2 safety fuse
1x 25A FK2 safety fuse
1x 30A FK2 safety fuse
1x 8A torpedo safety fuse
1x 16A torpedo safety fuse
1x 25A torpedo safety fuse

Additional information: Excluding France.

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

PCG92810001
PCG92810000
PCG92810001

The product you are viewing cross references to these numbers
DISPLAYING 17 to 32 (of 32 products)
1 2
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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