Wiring harness

Luggage compartment wiring harness loom.



Fits:
Porsche 911 - 1970

Complete main harness with original colour coded wiring.

Shown fuseboxes are not included

Runs from front fusebox to dashboard and harness will exactly fit like the original.
Wire tube and oil resistant tape are as original and terminals have rubber sleeves.

Harness comes with detailed connection instructions.

• 2 x Single bulb holder for headlight signal lights included.
• Fuel pump connector, boot and cable entry grommet included.

As original coloured wiring.

Original neoprene terminal sleeves used, (no shrink wrap)

Very high quality flex automotive grade wiring, ISO6722:2002 / DIN72551/6 / EEC directive 2000/53

Gasoline, oil, battery acid, engine coolant resistant.

High flex sleeving is very resistant to solvents and free of halogen, sulphur and phosphorous.

Special order made to order parts please allow 2 – 4 weeks

Handmade to concourse quality.

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

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9116120

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Tunnel wiring harness loom.



Fits:
Porsche 911 - 1971

Complete tunnel harness with original colour coded wiring.

Runs from front fusebox / gauges through tunnel to the engine bay.

Harness will exactly fit like the original.

Wire tube and oil resistant tape as original and the terminals have rubber sleeves.

Harness comes with detailed connection instructions.

2 x new 6 pole male connector , 1 x 14 pole male connector, fuel pump connector (rear) , rubber sleeve and grommet included.

Special order made to order parts please allow 2 – 4 weeks

Handmade to concourse quality.

Click 'Zoom in' for large parts diagram.
Diagram ref no 1

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9116120

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Air conditioning relay wiring harness loom.

Fits:
Porsche 911 - 1974 to 1984
Porsche 911 turbo - 1974 to 1984

Loom - NR 80

Complete harness from fusebox to relay socket (AC control relay) and 2 pole female connector.
As original coloured wiring.

Original neoprene terminal sleeves used, (no shrink wrap)

High quality flex automotive grade wiring, ISO6722:2002 / DIN72551/6 / EEC directive 2000/53

Gasoline, oil, battery acid, engine coolant resistant.

The high flex sleeving is very resistant to solvents and free of halogen, sulphur and phosphorous.

Click 'Zoom in' for large parts diagram.
Diagram ref no 1

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91161208001

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Air conditioning thermo switch wiring harness loom - Left Hand Drive (LHD)



Fits:
Porsche 911 - 1978 to 1989
Porsche 911 turbo - 1978 to 1989

Wiring Harness Nr. 29
Thermo Bi-metal Switch - Left hand Drive

Model: M559 - 1978-1989, Air conditioner

Special order made to order parts please allow 2 – 4 weeks

Handmade to concourse quality.

Click 'Zoom in' for large parts diagram.
Diagram ref no 12

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91161202901

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Air conditionong wiring harness loom.

Fits:
Porsche 911 - 1974 to 1984
Porsche 911 turbo - 1974 to 1984

Loom - NR 78

Complete harness from fusebox to AC control relay and 6 pole female connector.

As original coloured wiring.
Original neoprene terminal sleeves used, (no shrink wrap)
High quality flex automotive grade wiring, ISO6722:2002 / DIN72551/6 / EEC directive 2000/53
Gasoline, oil, battery acid, engine coolant resistant.
The high flex sleeving is very resistant to solvents and free of halogen, sulphur and phosphorous.

Special order made to order parts please allow 2 – 4 weeks

Handmade to concourse quality.

Click 'Zoom in' for large parts diagram.
Diagram ref no 8

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91161207801

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Alternator wiring harness Motorola. 



Fits:
Porsche 911 2.0ltr - 1969

Click 'Zoom in' for large parts diagram.
Diagram ref no 4

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90161203725

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Brake Warning Light Harness – Dashboard Light Warning System 

High-quality brake warning light harness designed for Porsche 911 models from 1969 to 1973, responsible for operating the brake warning bulb on the dashboard.

This harness is a key part of the vehicle’s safety system, ensuring that brake system faults are correctly indicated to the driver. It connects the brake warning circuit to the dashboard indicator, maintaining proper functionality and visibility of critical alerts.

Fits:

• Porsche 911 1969-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Manufactured to OEM-style specifications, this harness ensures accurate fitment and reliable electrical performance, making it ideal for restoration, repair, or replacement of aging wiring components.

Key Features

• Brake warning light harness
• Suitable for Porsche 911 (1969–1973)
• Part number 90161207900
• Operates dashboard brake warning bulb
• Ensures correct electrical connectivity
• OEM-style wiring and fitment
• Ideal for restoration and repair work
• Durable construction for long-term reliability

Function and Purpose

This harness is a vital component of the brake warning system.

It helps to:
• Activate the dashboard brake warning light
• Provide driver alerts for brake system issues
• Maintain correct electrical connections
• Support vehicle safety and awareness
• Ensure reliable system operation

Why Replace Brake Warning Harnesses

Electrical components can degrade over time, especially in classic vehicles.

Common issues include:
• Wiring deterioration or brittleness
• Poor electrical connections
• Intermittent or non-functioning warning lights
• Corrosion affecting conductivity

Replacing the harness restores proper warning system function and improves safety.

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90161207900

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911 Break Out Box - Not to be missed in every Porsche workshop
The 911 Break Out Box is a professional-grade diagnostic tool for Porsche 911 and 930 models built from 1970 to 1989. By inserting the breakout harness between the original 14-pin connector and the vehicle’s wiring, the electrical system remains fully operational while you perform precise measurements and troubleshooting. Built with superb, durable quality, this tool is designed for everyday workshop use.

Fits:
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)

What the Product Does

• Quick Diagnostics: Allows easy access to electrical circuits without disrupting the system.
  
• Safe Testing: Features 4mm banana socket plugs for reliable voltage, continuity, and resistance measurements.
  
• Built-in Features: Includes an LED voltmeter for quick battery voltage checks and an illuminated start button for controlled cranking or starting.
  
• Accurate Mapping: Test connections correspond exactly to the original 14-pin connector layout.
  
• Complete Kit: Comes with ground lead and detailed wiring diagrams for straightforward use.
  

The LED voltmeter lets you monitor battery voltage at a glance.
Easily test and measure:

• Starter circuit
• Oil pressure & oil temperature
• Backup light
• Oil level sensor
• Sportomatic system
• RPM signal
• WUR (Warm-Up Regulator)
• Engine fan
• Alternator field current

Symptoms That Require a Break Out Box

• Intermittent starting or electrical faults not traceable by standard tools.
• Sensor or wiring issues causing irregular engine performance.
• ECU or relay miscommunication requiring deeper circuit access.
• Need to test voltage or signal continuity without removing components.

Common Reasons for Failure or Replacement

• Workshop Wear: Connectors, pins, or sockets can wear out from heavy use.
  
• Damage: Drops, bent contacts, or improper storage may affect accuracy.
  
• Aging Tools: Older breakout boxes may not provide stable readings.
  
• Reliability Issues: A faulty or low-quality unit risks misdiagnosis.

Why  Invest in One?

• Provides accurate, safe diagnostics while keeping the car operational.
  
• Saves time by pinpointing wiring and sensor faults quickly.
• Prevents unnecessary replacement of expensive electrical parts.
• Essential for professional Porsche service shops and serious restorers.
• Ensures long-term reliability with a durable, workshop-ready design

Ideal For: Porsche 911/930 specialists, restorers, and workshops needing precise, repeatable electrical testing beyond standard OBD methods.

Cable tie wrap. 



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

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99951302340

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Clamp  B12/8  – Sunroof Drain & Wiring Loom Clamp 
Sold each

High-quality B12/8 clamp designed for securing components on Porsche 911 and 928 models.

This clamp is used on the sunroof drain tube on Porsche 911 models (1988–1989) and for securing the wiring loom on the Porsche 928, ensuring correct routing and protection of key systems.

Diagram ref no 13B  

Manufactured to OEM specifications, this clamp provides a secure fit, durability, and resistance to corrosion. Supplied individually, it is ideal for maintenance, repair, or restoration of classic Porsche systems.

Key Features

• Clamp size B12/8
• Suitable for Porsche 911 and Porsche 928
• Part number N0206211
• Used for sunroof drain tubes and wiring looms
• Ensures secure mounting and routing
• Durable and corrosion-resistant construction
• OEM-style fit and performance
• Sold individually

Function and Purpose

This clamp is designed to secure hoses and wiring in place.

It helps to:
• Hold sunroof drain tubes securely (911)
• Maintain correct routing of wiring looms (928)
• 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 environmental exposure.

Common issues include:
• Loss of clamping strength
• Corrosion or fatigue
• Hose or wiring movement
• Increased risk of leaks or electrical wear

Replacing worn clamps ensures proper securing and system protection.

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N0206211

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Clamp  B12/8  – Sunroof Drain & Wiring Loom Clamp 
Sold each

High-quality B12/8 clamp designed for securing components on Porsche 911 and 928 models.

This clamp is used on the sunroof drain tube on Porsche 911 models (1988–1989) and for securing the wiring loom on the Porsche 928, ensuring correct routing and protection of key systems.

Diagram ref no 13B  

Manufactured to OEM specifications, this clamp provides a secure fit, durability, and resistance to corrosion. Supplied individually, it is ideal for maintenance, repair, or restoration of classic Porsche systems.

Key Features

• Clamp size B12/8
• Suitable for Porsche 911 and Porsche 928
• Part number N0206211
• Used for sunroof drain tubes and wiring looms
• Ensures secure mounting and routing
• Durable and corrosion-resistant construction
• OEM-style fit and performance
• Sold individually

Function and Purpose

This clamp is designed to secure hoses and wiring in place.

It helps to:
• Hold sunroof drain tubes securely (911)
• Maintain correct routing of wiring looms (928)
• 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 environmental exposure.

Common issues include:
• Loss of clamping strength
• Corrosion or fatigue
• Hose or wiring movement
• Increased risk of leaks or electrical wear

Replacing worn clamps ensures proper securing and system protection.

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N0206211

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Complete tunnel harness, LHD (Left Hand Drive) cars.
This tunnel wiring harness (sometimes called a “tunnel cable harness”) used in Porsche 911 SC models (G-series) built roughly between 1978–1983. This wiring harness runs through the center of the car, connecting the fuse box to the rear lights, engine, and other electrical parts. It supplies power and signals to key systems, so if it’s damaged, lights, instruments, or other functions may stop working correctly.

Fits:
For Left Hand Drive (LHD) vehicles only
Porsche 911 SC 1978 - 83 

Diagram ref no 1

Quick Facts about tunbel wiring harness (91161200130)
•   Location: Runs through the transmission tunnel
•   Connections: Links fuse box to rear lights, engine bay & key modules
•   Function: Delivers power and signals to lighting, instruments, and electrical systems
•   Failure Symptoms: Flickering lights, faulty gauges, or loss of power to components
•   Importance: Essential for safe, reliable operation of multiple vehicle systems

Why Replacement Matters — Key Facts & Benefits:
•   Electrical Reliability: Old or damaged wiring in the tunnel harness can cause intermittent faults — lights flickering, instruments misreading, or even loss of power to critical components.
•   Safety: Faulty rear lights, inadequate ground connections, or exposed wires could lead to dangerous driving conditions or legal issues.
•  Prevent Further Damage: Wires rubbing, insulation degrading, or connections corroding may lead to short circuits. Replacing the harness early helps prevent fires, ECU damage or more costly electrical repairs.
•  Restoration & Fit: For those restoring or maintaining originality, having a correct, well-routed harness improves resale value and preserves proper factory spec.


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91161200130

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Complete tunnel harness.
The tunnel harness runs from the fuse panel to the instrumentation, switches, rear lights, and engine.



Fits:
Porsche 911 / 912 1965-68

Included with the harness are:
- Moulded connectors compatible with original plugs
- Pre-terminated fuse panel with fuses
- Bulb sockets for dash
- Neoprene covering around the torsion tube
- Correct colours of wire as per wiring diagram

Made in Canada

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Diode for rear window wiper.



Fits:
Porsche 911 1974-89



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91161710602

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Electric window power supply wiring harness loom.



Fits:
Porsche 911 - 1969 to 1975

Power supply harness.
This harness in installed in the trunk and supplies both doors, it has a round female 6 pole connector on the left and right.

It is connected to the front fusebox and ground studs (8mm eyelet) on both sides.

Other side of this harness needs to be connected to the terminal strip inside the door.

Handmade to concourse quality.

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90161207102

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Electric window wiring harness loom.

Fits:
Porsche 911 - 1969 to 1973

Wire harness for power windows (this loom is mounted in the door) and connects to the power supply harness by a 6 pole male connector.
Other side of this harness needs to be connected to the terminal strip inside the door.

One loom required for each door

Handmade to concourse quality.

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90161207103

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