Wiring Harness / Cables

OE Match alternator wiring loom for Porsche 901 / 911 models from 1969–73 equipped with Bosch alternators. This replacement harness serves the wiring connection between the alternator and voltage regulator.

Fits

• Porsche 911 1969-73
  
  

Check fitment for your specific vehicle (model, year, engine) before ordering.

What This Product Does

The loom groups the electrical connections associated with the alternator and regulator. It is a wiring component, rather than a replacement alternator or voltage regulator, and is intended for repairs involving damaged or deteriorated charging-system wiring.

Functions

• Connects the Bosch alternator and regulator wiring.
• Groups the associated conductors into a harness.
• Provides a replacement for deteriorated wiring during electrical repairs or restoration.
  
  

Technical Details

• Part number: 90161203720.
• Brand: OE Match.
• Application: Bosch alternator wiring.
• Internal diagram description: wiring harness NR. 2 0, regulator/generator, Bosch.
  
  

Symptoms of Fault

• Charging that becomes intermittent or insufficient.
• Battery warning lamp illumination or flickering lights.
• Cracked, brittle or melted wire insulation.
• Corrosion at terminals or connectors.
• Electrical behaviour that changes when the wiring moves.
  
  

Why Replacement Matters

Renewal may be appropriate when conductors are damaged, insulation has deteriorated, connections have corroded or earlier repairs have left unreliable joins. Confirm the source of the fault first: battery condition, earth connections, alternator and regulator faults can produce similar symptoms. Replacing the loom will not correct a defective charging unit.

FAQs

• Is this the alternator itself?
  No. The product is the wiring loom for a Bosch alternator application.
• What should be checked before replacement?
  Inspect the existing harness, terminals, battery connections and earth straps. Electrical testing should establish whether the wiring is responsible for the charging fault.
• Does the model year alone confirm compatibility?
  No. Compare the installed alternator, regulator connections and existing loom with the required application, particularly if the charging system has previously been changed.
• Can the original wiring be repaired instead?
  A localised defect may be repairable, while widespread insulation damage or corrosion can justify replacing the harness.

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Related, superseded, cross reference or alternative numbers for comparison.

90161203720

The product you are viewing cross references to these numbers

The OE Match battery starter cable connects the battery supply to the starter on Porsche 911 1965–73 applications. It has original-style terminals and grommets for replacement during starting-system repairs or electrical restoration.

Fits

• Porsche 911 1965–73
  
  Check fitment for your specific vehicle (model, year, engine) before ordering.
  
  Diagram ref no 8
  
  What Is This Part?

This is the main electrical cable carrying battery power to the starter connection. The starter draws a high current when turning the engine, so the condition of both the cable and its terminal connections matters. This replacement retains original-style terminals and grommets, which are relevant when renewing an ageing installation. It forms part of the starting circuit alongside the battery, starter and earth connections, all of which should be considered when investigating poor cranking.

What Does This Part Do?

• Carries starting current: Provides the electrical supply path from the battery to the starter connection.
• Connects the circuit: Its terminals provide the fixing points for the cable's electrical connections.
• Insulates the conductor: The cable covering separates the live conductor from surrounding components.
• Protects at pass-through points: The grommets help separate the cable from the edges of openings along its route.
  
  Why Replace This Part?

Corrosion, damaged strands or deteriorated terminal joints can increase resistance in a starter cable. Under starting load, this can cause voltage loss between the battery and starter, contributing to slow or intermittent cranking. Cracked, rubbed-through or heat-damaged insulation is another reason to assess the cable for replacement.

Confirm the cause before replacing it: a weak battery, poor earth connection or starter fault can produce similar symptoms. A voltage-drop test under cranking load helps distinguish a cable or connection problem from faults elsewhere. During restoration, inspect the existing cable rather than replacing it solely because of its age.

When to Replace This Part?

• Damaged insulation: Splits, abrasion, exposed conductor or melted areas are visible.
• Corroded connections: Corrosion has damaged a terminal or extends into the cable.
• Loose or damaged terminals: A terminal is cracked, distorted or cannot be secured correctly.
• Confirmed voltage loss: Testing identifies excessive resistance in the cable after its connections have been checked.
• Deteriorated previous repairs: Inspect unreliable joins, damaged ends or poorly protected sections.
• Poor seating: Check displaced or damaged grommets and any resulting cable abrasion during removal or refitting.
  
  Where Is This Part Fitted?

Location: Between the battery supply and the starter connection, forming part of the vehicle's main starting-circuit wiring. Follow the original cable routing and check the supporting clips, pass-through protection and terminal seating during installation.

Technical Details

• Original-style terminals and grommets.
  
  FAQs

• Does slow cranking mean the cable has failed? No. Check battery condition, earth straps, terminal connections and the starter before deciding which component needs replacement.
• Can a cable look intact but still have a fault? Yes. Internal corrosion or damaged strands may not be obvious externally; testing under load can help identify excessive resistance.
  
  Product Summary

• Product: Battery starter cable.
• Brand: OE Match.
• Purpose: Carries battery power to the starter connection.
• Features: Original-style terminals and grommets.

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

90161103121

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Pipe Clamp B20x18 – Multi-Position Clamp 
Sold each

High-quality pipe clamp B20x18 designed for a wide range of securing applications across Porsche 911, 924S, 928, and 914 models.

This versatile clamp is used in multiple locations including air conditioning pipes, wiring looms, power steering lines, clutch cables, and heating system components, making it an essential part for maintaining correct routing and system integrity throughout the vehicle.

Fits:

• 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 924S 2.5L 1986-87
• Porsche 924S 2.5L 1988
• Porsche 928S4 5.0L 1987-92
• Porsche 928GT 5.0L 1989-91
• Porsche 928GTS 5.4L 1992-95
• Porsche 914 (1970-1976)

Manufactured to OEM specifications, this clamp ensures secure fitment, durability, and resistance to corrosion. Supplied individually, it allows flexible replacement for maintenance, repair, or restoration projects.

Key Features

• Pipe clamp size B20x18
• Suitable for Porsche 911, 924S, 928, and 914
• Part number 99951107602
• Multi-use: AC pipes, wiring looms, steering, clutch, heating
• 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 various components across the vehicle.

It helps to:
• Hold pipes, hoses, and cables firmly in place
• Maintain correct routing and alignment
• Prevent vibration-related wear and damage
• Protect sensitive components such as wiring looms
• Support long-term system reliability

Why Replace Pipe 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 or cables
• Increased risk of wear or failure

Replacing worn clamps ensures proper securing and protects system components.

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

99951107602

The product you are viewing cross references to these numbers

Pipe Clamp B20x20 – Multi-Use Clamp 
Sold each

High-quality pipe clamp B20x20 designed for a wide range of securing applications across Porsche 911, 924, 924S, and 944 models.

This versatile clamp is used in multiple locations including oil pump pipes, gearbox casing, air injection systems, brake servo pipes, and battery cables, making it an essential component for maintaining correct routing and system integrity throughout the vehicle.

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 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 944S 2.5L 16V 1987-88
• Porsche 944 Turbo 2.5L 8V 1985-88
• Porsche 944 Turbo S 2.5L 8V 1988

Diagram ref no 39  

Manufactured to OEM specifications, this clamp provides secure fitment, durability, and resistance to corrosion. Supplied individually, it allows flexible replacement for maintenance, repair, or restoration projects.

Key Features

• Pipe clamp size B20x20
• Suitable for Porsche 911, 924, 924S, and 944
• Part number N0206071
• Multi-use: oil pipes, brake servo, air injection, battery cables
• 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 various pipes, hoses, and cables.

It helps to:
• Hold components firmly in place
• Maintain correct routing and alignment
• Prevent vibration-related wear and damage
• Protect critical systems such as oil and braking
• Support long-term system reliability

Why Replace Pipe 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 or cables
• Increased risk of wear or failure

Replacing worn clamps ensures proper securing and protects system components.

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

N0206071

The product you are viewing cross references to these numbers

Pipe Clamp B20x20 – Multi-Use Clamp 
Sold each

High-quality pipe clamp B20x20 designed for a wide range of securing applications across Porsche 911, 924, 924S, and 944 models.

This versatile clamp is used in multiple locations including oil pump pipes, gearbox casing, air injection systems, brake servo pipes, and battery cables, making it an essential component for maintaining correct routing and system integrity throughout the vehicle.

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 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 944S 2.5L 16V 1987-88
• Porsche 944 Turbo 2.5L 8V 1985-88
• Porsche 944 Turbo S 2.5L 8V 1988

Diagram ref no 39  

Manufactured to OEM specifications, this clamp provides secure fitment, durability, and resistance to corrosion. Supplied individually, it allows flexible replacement for maintenance, repair, or restoration projects.

Key Features

• Pipe clamp size B20x20
• Suitable for Porsche 911, 924, 924S, and 944
• Part number N0206071
• Multi-use: oil pipes, brake servo, air injection, battery cables
• 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 various pipes, hoses, and cables.

It helps to:
• Hold components firmly in place
• Maintain correct routing and alignment
• Prevent vibration-related wear and damage
• Protect critical systems such as oil and braking
• Support long-term system reliability

Why Replace Pipe 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 or cables
• Increased risk of wear or failure

Replacing worn clamps ensures proper securing and protects system components.

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

N0206071

The product you are viewing cross references to these numbers

This complete OE Match ignition harness is intended for a 3-pin CD1/HK2 ignition box, providing replacement wiring for the ignition assembly. It includes connector boots, PVC sheathing, high-grade automotive wire, a flat braided earth cable and contacts made to the original specifications.

Fits

• Porsche 911 1965–73
• Porsche 914/6 1971–75
  
  For the specified 3-pin ignition-box arrangement. The general compatibility is for cars up to 1973; the Porsche 914/6 application is listed separately as 1971–75. Confirm the ignition equipment fitted, particularly on converted or modified vehicles.
  

Check fitment for your specific vehicle (model, year, engine) before ordering.

Diagram ref no 20

What Is This Part?

This is the wiring harness serving the capacitor-discharge ignition assembly. Its wires and contacts provide the electrical connections required by the ignition equipment, while the boots and sheathing cover and organise those connections. The flat braided earth cable forms part of the harness assembly. It is relevant when repairing deteriorated ignition wiring or renewing an extensively repaired loom during restoration.

What Does This Part Do?

• Connects the ignition equipment: Provides wiring for the specified 3-pin ignition-box installation.
• Groups the wiring: Keeps the ignition connections together as a dedicated harness.
• Covers connections: Includes connector boots and PVC sheathing around the relevant wiring and terminals.
• Provides an earth connection: Includes a flat braided earth cable as part of the assembly.
  
  Why Replace This Part?

Replacement may be appropriate when inspection finds cracked insulation, damaged conductors, corroded contacts or unreliable previous repairs. Heat, vibration and age can affect wiring and connections, so an ignition fault should be traced to its source before replacing either the harness or the ignition control unit.

A complete harness can be a practical repair where deterioration affects several branches or connections rather than one isolated terminal. During restoration, assess the existing loom before refitting it; removal alone does not make replacement necessary.

When to Replace This Part?

• Damaged insulation: Cracking, abrasion, melting or exposed conductors are visible.
• Poor terminal condition: Contacts are corroded, loose or physically damaged.
• Broken protection: Connector boots or sheathing no longer cover the wiring properly.
• Damaged earth cable: The braid or its end connections show deterioration.
• Confirmed wiring fault: Testing traces intermittent starting, misfiring or cutting out to the ignition harness.
• Unsatisfactory repairs: Multiple joins or altered connections prevent a dependable installation.
  
  Where Is This Part Fitted?

Location: At the engine ignition assembly, serving the 3-pin ignition box and associated ignition wiring. Follow the vehicle-specific wiring arrangement when identifying connections and routing the replacement harness.

Technical Details

• Ignition-box connection: 3-pin CD1/HK2.
• Includes all connector boots and PVC sheathing.
• High-grade automotive wire.
• Flat braided earth cable.
• Contacts made to the original specifications.
  
  FAQs

• Should the ignition box be replaced first? No. Check the power supply, earth connections, terminals and harness condition before deciding which component has failed.
• Can an intermittent fault come from the harness? Yes. Damaged wiring or marginal connections can produce intermittent operation; testing should confirm the cause.
• Is a local repair sufficient? An isolated defect may be repairable. More widespread insulation damage, corrosion or previous alterations may justify replacing the harness.
  
  Product Summary

• Product: Complete 3-pin ignition harness.
• Brand: OE Match.
• Purpose: Replacement wiring and connections for the specified ignition assembly.

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

91161205000

The product you are viewing cross references to these numbers

The OE Match engine harness for Bosch alternator replaces the engine wiring on Porsche 911 1970–71 models with the 2 Pole connector arrangement. It is supplied with new connectors, housings, connector boots and an engine tin square grommet for engine wiring repairs and restoration. Manufactured to original specs.

Fits

• Porsche 911 1970–71 — for Bosch alternator with 2 Pole connector.
  
  Check fitment for your specific vehicle (model, year, engine) before ordering. Confirm the alternator type and connector arrangement, particularly if the charging system has been changed previously.
  
  What Is This Part?

This is the engine wiring harness for the Bosch alternator installation, grouping the relevant electrical wiring into an organised loom. Its connectors and housings provide the connection points, while the boots cover the terminal areas and the square grommet protects the wiring where it passes through the engine tin. The harness is manufactured to original specifications and made in Canada. It provides a replacement option when the existing loom has deteriorated or accumulated repairs that make further local repairs impractical.

What Does This Part Do?

• Connects the engine wiring: Provides the wiring arrangement for the specified Bosch alternator application.
• Groups the circuits: Keeps the engine wiring together as a loom rather than separate, unsupported wires.
• Provides connection points: New connectors and housings replace the corresponding ageing connection components.
• Covers terminal areas: Connector boots provide covering around the electrical connections.
• Protects the engine tin passage: The square grommet separates the wiring from the edge of its opening.
  
  Why Replace This Part?

Engine wiring can deteriorate through age, heat, vibration and abrasion. Cracked insulation, fractured wires or corroded connections can interrupt a circuit or introduce resistance, potentially contributing to intermittent electrical faults or poor charging. Replacement is appropriate when inspection and testing identify damage within the harness, rather than simply because a charging fault is present.

A replacement loom may also be useful during restoration when the original wiring has widespread deterioration, unsuitable joins or damaged connector housings. Check the battery, earth connections, alternator and regulator as part of diagnosis so that a fault elsewhere is not mistaken for harness failure.

When to Replace This Part?

• Damaged insulation: Cracking, brittleness, chafing or exposed conductors are visible.
• Heat damage: Wiring, boots or connector housings show melting or scorching; investigate the cause before fitting a replacement.
• Deteriorated connections: Terminals are corroded, loose or no longer retained properly in their housings.
• Confirmed circuit faults: Electrical testing identifies a broken conductor or excessive resistance in the loom.
• Unsuitable previous repairs: Multiple damaged or poorly secured joins make dependable local repair impractical.
• Removal reveals damage: Engine or alternator work exposes worn wiring or a damaged engine tin grommet.
  
  Where Is This Part Fitted?

Location: In the rear engine compartment, forming part of the engine wiring arrangement for the Bosch alternator installation. The supplied square grommet fits at the wiring passage through the engine tin.

Technical Details

• Alternator application: Bosch.
• Connector arrangement: 2 Pole connector.
• Included connection components: New connectors, housings and connector boots.
• Included grommet: Engine tin square grommet.
• Specification: Manufactured to original specifications.
• Country of manufacture: Canada.
  
  FAQs

• Does poor charging prove that the harness needs replacing? No. Check the battery, alternator, regulator, earth connections and wiring, then replace the component shown to be faulty.
• Should I repair the existing loom or replace it? An isolated fault may be repairable. Widespread insulation damage, corroded connections or numerous unsuitable joins can justify replacing the harness.
  
  Product Summary

• Product: Engine harness for Bosch alternator.
• Brand: OE Match.
• Application: Porsche 911 1970–71 with 2 Pole connector.
• Purpose: Replacement of deteriorated or damaged engine wiring.

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

91161201600

The product you are viewing cross references to these numbers

This OE Match engine harness for Motorola alternator applications connects the engine electrical circuits on Porsche 911 models from 1970–71. It provides a replacement wiring assembly when the existing loom has deteriorated or suffered damage.

Fits

• Porsche 911 1970–71 — with Motorola alternator.
  
  These broader model classifications do not extend this harness's application beyond Porsche 911 1970–71 with a Motorola alternator. Confirm the alternator currently fitted, particularly if the charging system has previously been changed.
  
  Check fitment for your specific vehicle (model, year, engine) before ordering.
  
  Diagram ref no 20
  
  What Is This Part?

This is the engine wiring loom specified for the Motorola alternator installation. The harness forms the electrical connection between the engine and the engine-compartment fuse-panel wiring, grouping individual circuits into a routed assembly. Its conductors and connections carry electricity between the connected components and the vehicle wiring. During restoration or engine work, its condition should be assessed alongside the terminals, earth connections and surrounding wiring.

What Does This Part Do?

• Connects engine wiring: Links the engine electrical circuits to the engine-compartment wiring connection.
• Serves the Motorola installation: Provides the engine harness application specified for this alternator arrangement.
• Groups individual circuits: Keeps the engine wiring together as a loom for routing and connection.
• Replaces deteriorated wiring: Allows a damaged engine harness to be renewed as an assembly rather than retaining multiple unreliable repairs.
  
  Why Replace This Part?

Engine-bay heat, vibration and age can leave insulation brittle, damage conductors or loosen connections. Corroded or poorly secured terminals can introduce electrical resistance, causing voltage loss and intermittent charging faults. Replacement may be appropriate where inspection confirms widespread deterioration, damaged connections or previous repairs that cannot be put right satisfactorily.

A charging warning or flat battery does not establish that the harness is faulty. Check battery condition, earth straps, alternator connections and charging-system operation before deciding which component needs replacing. A sound harness does not need automatic replacement whenever the alternator is removed.

When to Replace This Part?

• Cracked insulation: Brittle, split or missing covering exposes the conductors.
• Heat damage: Melted insulation, discolouration or burnt connections require investigation.
• Damaged wiring: Chafed, cut or fractured conductors are found during inspection.
• Corroded terminals: Connections are damaged or no longer make secure electrical contact.
• Confirmed electrical loss: Continuity or voltage-drop testing identifies a fault within the harness.
• Unsatisfactory previous repairs: Multiple damaged joins or altered connections make reliable repair impractical.
  
  Where Is This Part Fitted?

Location: In the rear engine compartment, running between the engine electrical connections and the engine-compartment fuse-panel harness. During fitting, check routing and supports so the loom is not stretched, trapped or left rubbing against adjacent parts. Disconnect the battery before disturbing alternator electrical connections.

Technical Details

• Country of manufacture: Canada.
• Electrical application: Engine harness for Motorola alternator installation.
  
  FAQs

• Should I replace the harness for a charging fault alone? No. Inspect the wiring and connections, then test the charging system to establish the cause.
• Can an individual damaged wire be repaired? A localised defect may be repairable using suitable automotive wiring methods. Widespread insulation damage or corrosion may justify harness replacement.
  
  Product Summary

• Product: Engine harness for Motorola alternator.
• Brand: OE Match.
• Purpose: Connects engine electrical circuits to the engine-compartment wiring.
• Manufacture: Made in Canada.

Related reference numbers
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91161201700

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Engine Wiring Harness.

Porsche 911 Engine Wiring Harness for 1972–1973 911 models. Replaces the full engine electrical loom, connecting alternator, ignition, and sensors. Ensures reliable current flow.

Fits:

• Porsche 911 1972-1973 2.2L / 2.4L / 2.7L RS LWB (F)
  
  

Diagram Ref No 9

What This Product Does:

• It connects the engine’s electrical components — alternator, ignition, sensors, and other engine peripherals — back to the fuse panel / engine bay wiring.
  
  

Symptoms Of Failure / Damage:

• No or intermittent charging (alternator not powering battery)
  
• Ignition / spark issues, misfires, dead cylinders
  
• Shorts, blown fuses in engine circuits
• Corroded / broken connectors, brittle insulation, oil damage leading to open circuits
• Erratic sensor readings or no connection to sensors
  
  

Why Replacement Matters:

• Restores electrical integrity in the engine bay — correct connections, reliable voltage paths
• Prevents electrical gremlins, such as random faults, shorts, or voltage drops
• A new harness with fresh connectors, grommets, and insulation resists heat, oil, vibration better than aged wiring

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

91161201720

The product you are viewing cross references to these numbers

SC Style Front Fuel Pump Loom Upgrade – Improved Fuel Pump Wiring Solution

High-quality SC-style front fuel pump loom upgrade, designed to improve the reliability, safety, and performance of the fuel delivery system on classic Porsche 911 models.

Fits:

• 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

This upgrade replicates the improved wiring layout found on later 911 SC models, relocating and optimising the fuel pump electrical supply to ensure more consistent voltage delivery and safer operation.

The loom can be integrated into the original ignition circuit, allowing the fuel pump to operate correctly in line with ignition status, enhancing both safety and functionality.

Key Features

• SC-style front fuel pump wiring upgrade
• Improves electrical supply to fuel pump
• Can be wired into original ignition circuit
• Enhances reliability and fuel delivery consistency
• Reduces load on original wiring
• Ideal for classic 911 upgrades and restorations
• High-quality wiring and connectors
• Designed for straightforward installation

Function and Purpose

This loom upgrade improves the performance of the fuel pump circuit.

It helps to:
• Deliver consistent voltage to the fuel pump
• Reduce strain on aging factory wiring
• Improve fuel pump efficiency and reliability
• Enable ignition-controlled pump operation
• Enhance overall system safety

Why Upgrade to SC-Style Fuel Pump Wiring

Early Porsche 911 wiring setups can suffer from voltage drop and reliability issues.

Benefits of this upgrade include:
• Improved fuel pump performance
• More stable electrical supply
• Reduced risk of wiring failure
• Enhanced safety through ignition control
• Modernised system while retaining OEM logic

This makes it a highly recommended upgrade for both restored and regularly driven classic 911s.

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

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

90161211000

The product you are viewing cross references to these numbers

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.

Related reference numbers
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90161206800

The product you are viewing cross references to these numbers

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

Related reference numbers
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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

Related reference numbers
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91161200410

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