Wiring Harness / Cables

Ground Strap Alternator and Intercooler.

Fits:
Porsche 911 - 1965 to 1973 - (alternator)

Porsche 911 turbo - 1987 to 1989  (intercooler)
Porsche 914 - 1970 to 1976

Click 'Zoom in' for large parts diagram.
Diagram ref no 18 or 17

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90161211000

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Ignition Harness for CDI 3 PIN. 



This is designed to replace your aging and cracked wiring harness that connects the CDI box to the ignition coil and ignition distributor. 

Fits:
Porsche 911 E / S - 1969

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90161209200

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MFI Engine Harness Loom – Mechanical Fuel Injection Wiring 

High-quality MFI engine harness loom designed for the Porsche 911, providing essential electrical connections for the mechanical fuel injection (MFI) system.

This harness includes connections for the temperature switch, micro switch, and shut-off solenoid, ensuring correct communication and operation of key MFI components. It plays a critical role in maintaining proper fuel delivery, engine response, and system functionality.

Fits:

• Porsche 911 1969 2.2L 

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

Key Features

• MFI engine harness loom
• Suitable for Porsche 911 (1969)
• Part number 90161207900
• Includes connections for temperature switch, micro switch, and shut-off solenoid
• Designed for mechanical fuel injection systems
• Ensures reliable electrical connectivity
• OEM-style wiring layout and fitment
• Ideal for restoration and repair work

Function and Purpose

This harness is a vital part of the MFI system.

It helps to:
• Connect critical MFI components
• Ensure proper signal transmission between switches and solenoid
• Support accurate fuel delivery control
• Maintain engine performance and drivability
• Restore original electrical functionality

Why Replace MFI Harness Looms

Over time, classic wiring looms can deteriorate due to heat and age.

Common issues include:
• Brittle or cracked wiring insulation
• Poor electrical connections
• Intermittent MFI system faults
• Reduced engine performance or inconsistent operation

Replacing the harness ensures reliable operation and restores system integrity.

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90161206800

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Motronic DME connector kit - 35 Pin 



Fits:
Porsche 924S - 1986 to 1988
Porsche 944 - 1982 to 1991
Porsche 944 turbo - 1985 to 1991
Porsche 968 - 1992 to 1995
Porsche 911 - 1984 to 1989

Connector will fit Bosch units
0 281 200 076
0 281 200 050

Connector List:

• 35 Pin ECU Connector
• Wire Seals
• JPT Terminals
• Connector Screws

Features:
After three decades of heat and extreme environmental conditions, the connectors and wires become extremely brittle and fragile and can break. Oftentimes, they break by just unplugging them. This can cause signal loss and prevent your engine from starting.

This OEM+ replacement kit will replace the stock ECU Bosch DME connector.

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94461200207

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Motronic DME connector kit - 55 Pin 



Fits:
Porsche 944 S - 1987 to 1988
Porsche 944  S2- 1989 to 1991

Connector will fit Bosch units
0 281 200 195

Connector List:

• 55 Pin ECU Connector
• Wire Seals
• Terminals
• Connector Screws
  

Suitable for Bosch Motronic
M1.3 / M1.5 / M1.52 / M1.54
MP5.1 / MP5.2 / MP7 / M2.5 / M2.7 /M2.10

Features:
After three decades of heat and extreme environmental conditions, the connectors and wires become extremely brittle and fragile and can break. Oftentimes, they break by just unplugging them. This can cause signal loss and prevent your engine from starting.

This OEM+ replacement kit will replace the stock ECU Bosch DME connector.

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94461812405

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Rear fuel pump wiring harness loom.



Fits:
Porsche 911 - 1971 to 1973

Fuel pump harness (rear)

"T" connector and fuel pump connector + correct rubber fuel pump boot.

Handmade to concourse quality.

Click 'Zoom in' for large parts diagram.
Diagram ref no 24

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91161207210

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Rear fuse panel wiring harness loom.



Fits:
Porsche 911 - 1970

Available for Bosch or Motorola Regulators

Complete engine fuse panel harness.

Mounted on fuse panel frame with original colour coded wiring.

Harness will exactly fit like the original with wire tube and oil resistant tape as original.

Terminals have rubber sleeves and harness comes with detailed connection instructions.

With new 2 x 14 pole male connectors, relay socket, 2 pole female connector.

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 4

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91161200

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Regulator panel wiring harness.
Connects to the engine and tunnel harness and includes a socket for the auxiliary start-up relay and speed switch. Also includes two grommets for panel pass through. This version is compatible with Bosch voltage regulators. *Sporto connector housing not included*



Fits:
Porsche 911 1971-73

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

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91161200410

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Relay wiring kit.
This kit containers the wires located on the engine relay panel equipped with the Bosch or Beru resistors.



Fits:
Porsche 911 1965-68

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90160905305

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Wire harness front luggage compartment.

Fits:
Porsche 911 and 912 1966-1968 (Zuffenhausen) 
* this is the taped version, only used for car's build at Zuffenhausen

Complete front harness from fuse box to front, headlights, horns, turn signal, washer pump, fog lights. Each wire at the right length with original colour coded wiring. H4 connectors included.

New 4 pole fuel connectors included.

•  As original coloured wiring.
•  Original neoprene terminal sleeves used, (no shrink tube!)
•  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 ,very resistant to solvents and free of halogen, sulphur and phosphorous.
•  Handmade in Holland, concourse quality.

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90161200101Z

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Wiring harness electronic ignition with lambda regulation. 



Fits:
Porsche 911 SC - 1978 to 1983 (US spec)

For engine code
93016

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91161217401

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Wiring Harness Mounting Plate For Cars With Mechanical Injection.

Ensure proper harness alignment and electrical reliability in your classic Porsche with this Wiring Harness Mounting Plate, specifically designed for 911 models equipped with mechanical fuel injection (MFI) systems.
This precision-engineered plate serves as the main support structure for the engine wiring harness, securing cables, connectors, and ignition wiring to the chassis. It maintains correct wire routing, prevents movement or vibration, and protects electrical lines from damage due to heat, friction, or mechanical stress.
This plate is essential for maintaining factory-correct engine bay layout and reliability, especially in restoration projects or when replacing worn or missing harness supports.

Fits:

• Porsche 911 1974-1977 2.7L Carrera
  
  

Diagram Ref No 4

What This Product Does:

• Provides structural support for the main wiring harness in 911 MFI systems
  
• Maintains proper cable positioning for ignition, alternator, and sensor wires
• Keeps electrical lines clear of hot or moving parts
• Reduces mechanical strain and electrical noise by stabilizing wire bundles
  
• Ensures correct fitment of HKZ ignition harness and connectors
  
  

Signs / Symptoms Of Wear Or Replacement Needed: 

• The engine harness no longer stays securely in place, causing wires to sag or hang in the engine bay.
• Unsecured wiring can move or stretch, creating unstable electrical connections — especially in ignition and fuel injection circuits.
• Flickering warning lights, misfires, or erratic fuel injection behavior.
• Poorly routed cables can cross high-voltage ignition lines, introducing interference that affects sensor signals or ignition performance.

Why Replacement Matters:

• Cracked or hardened wires, which can break when moved.
  
• Corrosion inside copper conductors, increasing resistance and voltage drop.
  
• Loose or oxidized connectors, leading to intermittent contact or electrical arcing.
  
• Consistent current flow to the alternator, ignition coil, sensors, and fuel-injection system.
  
• Stable voltage readings, reducing risk of misfires, no-starts, or erratic gauge behavior.
  
• Frayed or melted insulation can short against the bodywork, risking sparks or even fires.
  
• Wires sagging near exhaust manifolds can melt and arc.
  
• Poor grounds or live shorts can damage expensive ignition modules or alternators.

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91161200521

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