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Wiring harness
- 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)

Fits:
Porsche 911 1978-86 LHD Cars
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161216203
The product you are viewing cross references to these numbers
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1978-1989 3.3L Turbo (930)
Fits:
Porsche 911 1972-89
Porsche 911 Turbo 1975-89
Porsche 964 1989-94
Porsche 959 1987-88
Diagram ref. 16.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161204422
The product you are viewing cross references to these numbers
- 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 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
A/C Condenser Blower Harness – Air Conditioning Fan Wiring Loom
High-quality A/C condenser blower harness designed for Porsche 911 models from 1984 to 1989, providing reliable electrical connections for the air conditioning condenser fan/blower system.
This harness ensures proper operation of the condenser blower, which is essential for maintaining efficient air conditioning performance by aiding heat dissipation from the condenser.
Fits:
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1986-1989 3.3L Turbo (930)
Diagram ref no 9
Manufactured to OEM-style specifications, this loom offers precise fitment and dependable electrical performance, making it ideal for repairing or replacing aging or damaged wiring in the A/C system.
Key Features
• A/C condenser blower wiring harness
• Suitable for Porsche 911 (1984–1989)
• Designed for air conditioning condenser fan
• Ensures reliable electrical connectivity
• Supports efficient A/C system performance
• OEM-style wiring and connectors
• Ideal for restoration and repair work
• Durable construction for long-term use
Function and Purpose
This harness is essential for the air conditioning system.
It helps to:
• Power and control the condenser blower fan
• Maintain proper airflow across the condenser
• Support efficient cooling performance
• Ensure stable electrical connections
• Restore A/C system reliability
Why Replace A/C Blower Harnesses
Electrical components in classic vehicles can degrade over time.
Common issues include:
• Intermittent or non-functioning condenser fan
• Brittle or damaged wiring insulation
• Poor electrical connections
• Reduced A/C efficiency
Replacing the harness restores proper blower function and improves overall air conditioning performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161208004
The product you are viewing cross references to these numbers
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
Sold each - fits left or right
Fits:
Porsche 911 3.2 Carrera - 1986 to 1988
Handmade, concourse quality.
Diagram ref no 5
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161226400
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Sold each - fits left and right hand doors

Fits:
Porsche 911 - 1970 to 1989
Click 'Zoom in' for large parts diagram.
Diagram ref no 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161204800
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)

Fits:
Porsche 911 - 1974 to 1983
Porsche 911 turbo - 1975 to 1983
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161214700
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)

Fits:
Porsche 911 - 1974 to 1986
Porsche 911 turbo - 1975 to 1986
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161216700
The product you are viewing cross references to these numbers
- 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 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)

Fits:
Porsche 911 - 1974 to 1989
Porsche 911 turbo - 1975 to 1989
Click 'Zoom in' for large parts diagram.
Diagram ref no 4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161210402
The product you are viewing cross references to these numbers
- 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)

Fits:
Porsche 911 2.0L-2.7L 08/1969 - 07/1973
Click 'Zoom in' for large parts diagram.
Diagram ref no 12
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161202400
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Fits:
Porsche 911 2.0L-2.7L 08/1969 - 07/1973
Click 'Zoom in' for large parts diagram.
Diagram ref no 12
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161202400
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
The Genuine Porsche Wiring Harness for Front Turn Signal 90161204700 is a replacement electrical wiring harness for the right-hand front turn signal/indicator on compatible Porsche vehicles.
(2 Pieces Required For 69 Model For Left/Right)
Fits:
- Porsche 911 2.0L 09/68-08/69 - left/right, 2 pcs. req.
- Porsche 911 2.0-2.7L 08/69-07/73 - right, 1 pcs. req.
- Porsche 912 1.6L 09/68-08/69 - left/right, 2 pcs. req.
Diagram Ref No 10
The harness provides the electrical connection required for the front indicator lamp to operate correctly. It carries electrical power and the necessary circuit connection between the vehicle wiring system and the right front turn signal assembly.
Age, corrosion, heat, moisture, previous repairs and damaged connectors can all cause an older wiring harness to become unreliable. Replacing a deteriorated harness helps restore dependable indicator operation and avoids intermittent electrical faults caused by damaged wiring or poor connections.
What This Product Does:
The wiring harness forms the electrical connection between the vehicle and the right front indicator assembly.
Its functions include:
- Supplying the electrical circuit to the front turn signal
- Connecting the indicator lamp to the vehicle wiring system
- Maintaining reliable electrical continuity
- Providing secure connections at the lamp assembly
- Supporting consistent indicator operation
- Keeping the original exterior lighting circuit correctly connected
When the turn signal is activated, the electrical circuit allows the right front indicator to flash and signal the driver's intended direction to other road users.
Symptoms Of Wear Or Failure:
Common signs of wiring or connector deterioration include:
The indicator bulb, lamp assembly and other parts of the circuit should also be checked before concluding that the harness itself has failed.
Why Replacement Matters:
Turn signals are essential safety and communication devices.
Replacing a damaged right-front indicator wiring harness helps:
- Restore reliable indicator operation
- Maintain consistent electrical continuity
- Correct intermittent electrical faults
- Replace damaged or corroded terminals
- Eliminate brittle or unsafe wiring
- Reduce the risk of short circuits
- Maintain correct exterior lighting operation
- Restore original-style electrical connections
- Improve reliability compared with deteriorated temporary repairs
A turn signal that operates only intermittently cannot provide a dependable indication to other road users.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90161204700
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Fits:
Porsche 911 2.0L 09/68-08/69 - left/right, 2 pcs. req.
Porsche 911 2.0-2.7L 08/69-07/73 - right, 1 pcs. req.
Porsche 912 1.6L 09/68-08/69 - left/right, 2 pcs. req.
Click 'Zoom in' for large parts diagram.
Diagram ref no 13
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90161204700
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Fully prepared 911 1974-1986 front harness with new relay base (for horn).
Fits:
Porsche 911 1987-1989 (also US/CAN)
This fits also 1984-1986 Carrera 3.2 (ROW + US/CAN)
• Waxed lacing wire and each wire at the right length.
• Runs from fuse box to left and right headlight bucket.
• Two H4 connectors included.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161200302
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)

Fits:
Porsche 911 2.0L-2.2L 09/1969-08/1970
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161200300
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Fits:
Porsche 911 2.0L-3.0L 08/1969 - 07/1975
Click 'Zoom in' for large parts diagram.
Diagram ref no 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161201130
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

Fits:
Porsche 911 1974-86
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161200301
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
-
rear-view mirror, door mirror 911 1978-83 809-10
-
wiring harnesses: luggage compartment, steering lock 911 1978-83 902-12
-
wiring harnesses: FRONT luggage compartment, interior lights, sunroof 911 1978-83 902-14
-
wiring harnesses: door mirror 911 1978-83 902-15
-
wiring harnesses: power window 911 1978-83 902-18
-
wiring harnesses body front section 911 1987-89 902-12
-
wiring harnesses body door 911 1987-89 902-16
-
electrical components for air conditioner 911 1984-86 813-40
-
Wiring harnesses 911 1970-73 902-10
-
Wiring harnesses 911 1974-77 902-20
-
wiring harnesses 911 1965-69 902-15
-
wiring harnesses 911 TURBO 1975-77 902-20
-
wiring harnesses: FRONT luggage compartment 911 1984-86 902-12
-
wiring harnesses: FRONT luggage compartment interior lights, sunroof, convertible top control, electric 911 1984-86 902-14
-
wiring harnesses: door mirror, electrically adjustable, central locking system 911 1984-86 902-15
-
wiring harnesses: FRONT luggage compartment power window 911 1984-86 902-18
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.