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.
Wiring harness

Fits:
Porsche 911 - 1970 to 1989
Porsche 914 - 1970 to 1976
Porsche 928 - 1978 to 1995
Porsche 996 GT3 - 1999 to 2005
Porsche 997 turbo - 2007 to 2013
Click 'Zoom in' for large parts diagram.
Diagram ref no 13
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99951302340
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 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- 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
- Porsche 914 (1970-1976)
Clamp 13/15 W5 – Power Steering Pipe & Wiring Loom
Clamp
Sold each
High-quality 13/15 W5 clamp designed for Porsche 928 models from 1983 to 1995, used to secure power steering pipes and wiring looms.
This clamp ensures that both hydraulic lines and electrical
wiring are held securely in place, maintaining correct routing and preventing
movement, vibration, or potential damage within the engine bay. It plays an
important role in preserving both steering system reliability and electrical
system integrity.
Fits:
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Diagram ref no 32
Manufactured to OEM specifications, this clamp provides precise fitment, durability, and corrosion resistance. Supplied individually, it is ideal for maintenance, repair, or restoration of Porsche 928 systems.
Key Features
• Clamp size 13/15 W5
• Suitable for Porsche 928 (1983–1995)
• Designed for power steering pipes and wiring looms
• Ensures secure mounting and routing
• Prevents vibration-related wear and damage
• Durable and corrosion-resistant construction
• OEM-style fit and performance
• Sold individually
Function and Purpose
This clamp is designed to secure pipes and wiring in place.
It helps to:
• Hold power steering pipes securely
• Maintain correct routing of wiring looms
• Prevent movement and vibration damage
• Protect hoses and electrical components
• Ensure long-term system reliability
Why Replace Clamps
Clamps can degrade over time due to heat and environmental exposure.
Common issues include:
• Loss of clamping strength
• Corrosion or fatigue
• Pipe or wiring movement
• Increased risk of wear, leaks, or electrical faults
Replacing worn clamps ensures secure installation and protects critical systems.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99951115600
The product you are viewing cross references to these numbers
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Clamp 17/15 – Wiring Loom, AC Line &
Gearbox Case Clamp
Sold each
High-quality 17/15 clamp designed for multiple Porsche models including 928, 964, and 987.1 Boxster and Cayman.
This versatile clamp is used in several key locations,
including control unit wiring looms on the Porsche 928, solid air
conditioning lines on the Porsche 964, and Tiptronic gearbox casing
applications on the Porsche 987.1. It ensures secure mounting and correct
routing of critical components across electrical, cooling, and drivetrain
systems.
Fits:
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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 Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
Diagram ref no 8
Manufactured to OEM specifications, this clamp provides durability, corrosion resistance, and precise fitment. Supplied individually, it is ideal for maintenance, repair, or restoration work.
Key Features
• Clamp size 17/15
• Suitable for Porsche 928, 964, and 987.1
• Part number 99951114202
• Multi-use: wiring loom, AC line, gearbox casing
• Ensures secure mounting and routing
• Prevents vibration-related wear and movement
• Durable and corrosion-resistant construction
• OEM-style fit and performance
• Sold individually
Function and Purpose
This clamp is designed to secure pipes, cables, and components in place.
It helps to:
• Hold wiring looms securely (928)
• Maintain correct routing of AC lines (964)
• Secure components on the Tiptronic gearbox casing (987.1)
• Prevent vibration-related wear or damage
• Ensure long-term system reliability
Why Replace Clamps
Clamps can degrade over time due to heat and environmental exposure.
Common issues include:
• Loss of clamping strength
• Corrosion or fatigue
• Movement of pipes, cables, or components
• Increased risk of system wear or failure
Replacing worn clamps ensures proper securing and protects critical systems.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99951114202
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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 Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
Clamp 17/15 – Wiring Loom, AC Line &
Gearbox Case Clamp
Sold each
High-quality 17/15 clamp designed for multiple Porsche models including 928, 964, and 987.1 Boxster and Cayman.
This versatile clamp is used in several key locations,
including control unit wiring looms on the Porsche 928, solid air
conditioning lines on the Porsche 964, and Tiptronic gearbox casing
applications on the Porsche 987.1. It ensures secure mounting and correct
routing of critical components across electrical, cooling, and drivetrain
systems.
Fits:
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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 Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
Diagram ref no 8
Manufactured to OEM specifications, this clamp provides durability, corrosion resistance, and precise fitment. Supplied individually, it is ideal for maintenance, repair, or restoration work.
Key Features
• Clamp size 17/15
• Suitable for Porsche 928, 964, and 987.1
• Part number 99951114202
• Multi-use: wiring loom, AC line, gearbox casing
• Ensures secure mounting and routing
• Prevents vibration-related wear and movement
• Durable and corrosion-resistant construction
• OEM-style fit and performance
• Sold individually
Function and Purpose
This clamp is designed to secure pipes, cables, and components in place.
It helps to:
• Hold wiring looms securely (928)
• Maintain correct routing of AC lines (964)
• Secure components on the Tiptronic gearbox casing (987.1)
• Prevent vibration-related wear or damage
• Ensure long-term system reliability
Why Replace Clamps
Clamps can degrade over time due to heat and environmental exposure.
Common issues include:
• Loss of clamping strength
• Corrosion or fatigue
• Movement of pipes, cables, or components
• Increased risk of system wear or failure
Replacing worn clamps ensures proper securing and protects critical systems.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99951114202
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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 Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
ABS Pump Cable Connector Cover Cap
High-quality ABS pump cable connector cover cap designed for Porsche 928 models from 1984 to 1995 with ABS.
This protective cover fits over the ABS pump electrical
connector, located on the left-hand side of the engine bay, helping to
shield the connection from dirt, moisture, and environmental contaminants.
Fits:
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Diagram ref no 6
As part of the ABS system wiring protection, this cap plays an important role in maintaining reliable electrical connections and preventing corrosion or damage to sensitive components.
Manufactured to OEM specifications, it ensures a precise fit and long-lasting durability, making it ideal for restoration, maintenance, or replacement of worn or missing covers.
Key Features
• ABS pump cable connector cover cap
• Fits Porsche 928 (1984–1995)
• Located on left-hand side of engine bay
• Protects electrical connector from dirt and moisture
• OEM-style fit and specification
• Durable construction for long-term protection
Function and Purpose
This cover cap is a protective component within the ABS system.
It helps to:
• Shield ABS pump electrical connections
• Prevent ingress of dirt, dust, and moisture
• Reduce risk of corrosion or electrical faults
• Maintain reliable ABS system performance
• Preserve wiring integrity in the engine bay
Why Replace Connector Covers
Over time, protective caps can become damaged or lost.
Common issues include:
• Cracked or brittle plastic
• Missing covers exposing connectors
• Contamination of electrical contacts
• Increased risk of corrosion or connection failure
Replacing worn covers helps maintain proper electrical protection and system reliability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92861287400
The product you are viewing cross references to these numbers
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
ABS Pump Cable Connector Cover Cap
High-quality ABS pump cable connector cover cap designed for Porsche 928 models from 1984 to 1995 with ABS.
This protective cover fits over the ABS pump electrical
connector, located on the left-hand side of the engine bay, helping to
shield the connection from dirt, moisture, and environmental contaminants.
Fits:
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Diagram ref no 6
As part of the ABS system wiring protection, this cap plays an important role in maintaining reliable electrical connections and preventing corrosion or damage to sensitive components.
Manufactured to OEM specifications, it ensures a precise fit and long-lasting durability, making it ideal for restoration, maintenance, or replacement of worn or missing covers.
Key Features
• ABS pump cable connector cover cap
• Fits Porsche 928 (1984–1995)
• Located on left-hand side of engine bay
• Protects electrical connector from dirt and moisture
• OEM-style fit and specification
• Durable construction for long-term protection
Function and Purpose
This cover cap is a protective component within the ABS system.
It helps to:
• Shield ABS pump electrical connections
• Prevent ingress of dirt, dust, and moisture
• Reduce risk of corrosion or electrical faults
• Maintain reliable ABS system performance
• Preserve wiring integrity in the engine bay
Why Replace Connector Covers
Over time, protective caps can become damaged or lost.
Common issues include:
• Cracked or brittle plastic
• Missing covers exposing connectors
• Contamination of electrical contacts
• Increased risk of corrosion or connection failure
Replacing worn covers helps maintain proper electrical protection and system reliability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92861287400
The product you are viewing cross references to these numbers
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Bypass your expensive ignition switch and install a hot start relay that will lead the current directly to the starter.
We have a 6 or 12 volt version and it works in any classic.
Fits:
Porsche 911 / 924 / 928 / 914 / 944 / 968 / 356
This relay can be placed near the starter motor and is used to limit the starting current and no longer allow it to be switched via the ignition switch.
- 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)
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- 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
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
- Porsche 914 (1970-1976)
Wiring Harnesses – Precision Electrical Connectivity for Porsche Vehicles
Wiring harnesses are the backbone of your Porsche’s electrical system. They connect and deliver power between critical components - from lighting and sensors to engine management and infotainment systems - ensuring everything functions as designed. A properly fitted harness guarantees reliable electrical performance, signal integrity, and safety throughout the vehicle.
At Design911, we supply a wide range of genuine and high-quality wiring harnesses for Porsche models including 911, Boxster, Cayman, Cayenne, Macan, and Panamera. Each harness is meticulously engineered offering precision, reliability, and durability as intended
What Do Wiring Harnesses Do?
A wiring harness is a complex assembly of wires, connectors,
and terminals designed to:
- Transmit
power and data between electrical systems.
- Protect
electrical circuits with insulated, organised routing.
- Simplify
installation and maintenance by combining multiple wires into one
unified assembly.
- Ensure correct communication between sensors, ECUs, lights, and other modules.
In modern Porsches, wiring harnesses play a vital role in enabling advanced technologies — from adaptive lighting and traction control to comfort and entertainment systems.
Why Do Wiring Harnesses Fail?
Even though designed for longevity, wiring harnesses can
degrade or fail due to:
- Heat
exposure or engine vibration causing insulation wear.
- Moisture
ingress or corrosion in connectors and terminals.
- Rodent
damage or physical abrasion from engine movement.
- Electrical
overloads or short circuits damaging internal wiring.
- Previous repairs or poor modifications affecting performance.
Signs of a failing wiring harness include flickering lights, intermittent electrical faults, dashboard warnings, or complete system failure.
Why Replace Faulty Wiring Harnesses?
Replacing a damaged wiring harness restores proper electrical performance, eliminates intermittent issues, and prevents costly damage to control modules or sensors.
Benefits of replacement include:
- Restored power delivery and communication across systems.
- Improved reliability and protection against shorts or fires.
- Elimination of diagnostic faults and warning lights.
- Precision-fit installation with manufacturer-standard components.
Each harness in this range is built using high-grade materials and connectors, ensuring accurate fitment, corrosion resistance, and long-term dependability.