Carburetors & Parts

M8 Fuel Banjo Fitting – Solex Carburettor 
Sold each 

High-quality M8 banjo fitting designed for the Solex carburettor used in early Porsche 911 models up to 1968.

Fits:

• Porsche 911 1965-1968 2.0L

Diagram ref no 40 

This fitting provides a secure connection between the fuel line and carburettor, ensuring proper fuel delivery into the engine. As part of the early carburettor-based fuel system, it plays a crucial role in maintaining consistent fuel flow and engine performance.

Manufactured to OEM specifications, this banjo fitting ensures precise fitment and dependable sealing, making it ideal for restoration, repair, or maintenance of classic Porsche 911 fuel systems.

Key Features

• M8 banjo fitting for Solex carburettor
• Suitable for Porsche 911 (up to 1968)
• Designed for early carburettor fuel systems
• Ensures secure, leak-free fuel connection
• OEM-style fit and performance
• Durable construction for long-term reliability

Function and Purpose

This banjo fitting is a critical component within the carburettor fuel system.

It helps to:
• Connect fuel lines directly to the Solex carburettor
• Maintain consistent and controlled fuel flow
• Ensure leak-free sealing under operating conditions
• Support efficient fuel delivery to the engine

Why Replace Banjo Fittings

Over time, fuel fittings can deteriorate or fail.

Common issues include:
• Fuel leaks at carburettor connections
• Damaged or worn sealing faces
• Corrosion due to age and fuel exposure
• Reduced fuel delivery efficiency

Replacing worn fittings ensures safe operation and optimal performance.

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Related, superseded, cross reference or alternative numbers for comparison.

90110890200

The product you are viewing cross references to these numbers

Bearing bracket relay shaft for Solex 40 PI-1 carburettor.
Sold each - 2 required per car

Fits:
Porsche 911 - 1965 to 1968

Diagram ref no 20

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Related, superseded, cross reference or alternative numbers for comparison.

90110807900

The product you are viewing cross references to these numbers

Braided Fuel Hose (Sold by the Metre) - 7.3mm Internal Diameter / 13.5mm Outer Diameter. 

This high-quality braided fuel hose is designed for multiple uses within the fuel system of various vehicles. It offers extremely low fuel permeability, excellent heat resistance, and high flexibility, making it a reliable choice for demanding applications.

Fits:
Porsche 356 1950-65
Porsche 911 Carrera 1965-1977 
Porsche 912 1967-69
Porsche 914 1970-76 

Comparable to Porsche part number(s): 99918003050 & 9991800305A

Specifications:
Inner Diameter (ID): 7.3mm
Outer Diameter (OD): 13.5mm 
Material: FPM/ECO/AR/ECO (Type 3E) – Compliant with DIN 73379-1
Complies With: EU End-of-Life Vehicles Directive

NOTE: This product is not suitable for use in fuel tanks, or for gear and/or engine oils. Always follow the manufacturer's specifications regarding operating temperatures, especially for high-performance engines exposed to extreme heat.

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

9991800305A

The product you are viewing cross references to these numbers

Braided Fuel Hose (Sold by the Metre) - 9.3mm Internal Diameter / 15.3mm Outer Diameter. 

This high-quality braided fuel hose is designed for multiple uses within the fuel system of various vehicles. It offers extremely low fuel permeability, excellent heat resistance, and high flexibility, making it a reliable choice for demanding applications.

Fits:
Porsche 911 Carrera 1965-89
Porsche 911 Turbo (930) 1975-89 
Porsche 914 1970-76
Porsche 924 1976-85
Porsche 928 1978-91

Comparable to Porsche part number(s): N0203591 & PCG020359A

Specifications:

Inner Diameter (ID): 9.3mm
Outer Diameter (OD): 15.3mm 
Material: FPM/ECO/AR/ECO (Type 3E) – Compliant with DIN 73379-1
Complies With: EU End-of-Life Vehicles Directive

NOTE: This product is not suitable for use in fuel tanks, or for gear and/or engine oils. Always follow the manufacturer's specifications regarding operating temperatures, especially for high-performance engines exposed to extreme heat.

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

PCG020359A

The product you are viewing cross references to these numbers

Rennline Carbon Fiber Velocity Stacks (50mm Tall) | Precision Airflow & Top-End Power for cars with Carburettors
Sold individually
The Rennline Carbon Fiber Velocity Stacks (50mm tall) are designed to optimise intake airflow and engine performance in high-revving applications. Constructed from ultra-lightweight carbon fibre, these 2" (50mm) stacks enhance air velocity and resonance, allowing for improved pressure pulse frequencies and more efficient airflow through the intake system.

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 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• Porsche 356 1950-55
• Porsche 356A 1955-59
• Porsche 356B 1959-63
• Porsche 356C 1963-65

Compared to a 2.25" trumpet, these velocity stacks deliver superior high-RPM torque and throttle response, making them ideal for motorsport and performance-focused Porsche builds. With a standard 65mm mounting hole pattern, they’re designed for easy installation on a wide range of custom and carburettor-based setups.

Each velocity stack is sold individually and built to withstand the heat, vibration, and stress of competitive driving — offering both technical performance and sleek carbon aesthetics.

What Do Velocity Stacks Do?
Velocity stacks (also known as intake trumpets) are engineered to improve the airflow into the engine’s intake system, smoothing the transition of air and increasing volumetric efficiency.

Core Functions:

• Increase air velocity into the throttle body or carburettor.
• Improve top-end horsepower and torque output.
• Optimise pressure waves for enhanced combustion efficiency.
• Smooth airflow and reduce turbulence at the intake mouth.
• Deliver sharper throttle response at high RPM.

In short, they allow your engine to breathe more efficiently, resulting in better performance, faster throttle response, and improved sound.

Why Do Velocity Stacks Fail or Need Replacement?

Over time, velocity stacks — particularly older aluminium or plastic types — can degrade due to heat cycling, vibration, and exposure to contaminants.

Common Causes of Failure Include:

• Cracking or delamination from extreme heat and vibration.
• Corrosion or fatigue in metal-based versions.
• Airflow restriction caused by dirt or damage.
• Poor fitment leading to air leaks or misalignment.
• Material fatigue from repeated stress during performance driving.

When velocity stacks weaken or distort, airflow becomes uneven — reducing efficiency and potentially causing imbalanced fuel-air ratios or power loss.

Why Upgrade to Rennline Carbon Fiber Velocity Stacks?

Upgrading to Rennline’s carbon fibre design provides enhanced durability, lower weight, and optimal airflow characteristics — ideal for performance-focused engines and track cars.

Key Benefits:

• Increases torque and top-end power at high RPMs.
• Lightweight carbon construction for reduced mass and improved airflow.
• Precision 50mm height ideal for performance tuning.
• Improved pressure pulse frequency for enhanced throttle response.
• Direct-fit design with 65mm mounting holes.
• Sleek carbon fibre finish adds a professional motorsport aesthetic.

Rennline’s carbon fibre stacks combine engineering precision with performance-driven design — perfect for those seeking peak airflow efficiency and style.

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

M91

The product you are viewing cross references to these numbers

40 IDF Style Carburettor 

Restore or upgrade the induction system of your classic Porsche with this OE Match 40 IDF Carburettor, designed for Porsche 356 and Porsche 912 applications. Supplied as a single carburettor, this premium-quality unit is styled on the legendary Weber 40 IDF, offering dependable performance, excellent drivability and precise fuel metering for both restoration and performance projects.

Fits:

• Porsche 911 1965-1968 2.0L / 912 SWB (F)
• Porsche 356 1950-55
• Porsche 356A 1955-59
• Porsche 356B 1959-63
• Porsche 356C 1963-65
• Porsche 914 (1970-1976)

Choke: 28
Main: 200
Air:115
Idle: 50
Emulsion tube: 10.5

Manufactured to high standards using precision-engineered components, this carburettor delivers smooth throttle response, stable idle characteristics and consistent fuel delivery throughout the rev range. Whether you're replacing a worn original carburettor, rebuilding an engine or assembling a matched twin-carburettor setup, this OE Match 40 IDF carburettor provides the quality and reliability required for classic air-cooled Porsche ownership.

Styled on one of the most respected carburettor designs ever produced, it offers a practical solution for enthusiasts seeking dependable performance while maintaining the traditional character of their Porsche flat-four engine.

What Does the Carburettor Do?

The carburettor is responsible for supplying the engine with the correct mixture of fuel and air to ensure efficient combustion and smooth engine operation.

Its key functions include:

• Precisely metering fuel delivery.
• Mixing fuel and air for optimum combustion.
• Providing crisp throttle response.
• Maintaining smooth idle performance.
• Supporting reliable cold and hot starting.
• Delivering consistent power across the rev range.
• Helping maximise engine efficiency and drivability.

A correctly functioning carburettor is essential for achieving the responsive, enjoyable driving experience expected from a classic Porsche.

Why Replace Your Carburettor?

Over time, carburettors are affected by wear, contamination and modern fuel formulations containing ethanol, which can lead to reduced performance and reliability.

Replacement is recommended if you experience:

• Poor idle quality.
• Hesitation during acceleration.
• Flat spots.
• Fuel leaks.
• Difficult starting.
• Excessive fuel consumption.
• Worn throttle shafts.
• Internal corrosion.
• Damaged castings.
• Inconsistent fuel delivery.

Replacing a tired carburettor restores smooth engine operation and improves overall performance.

Benefits

Installing this OE Match 40 IDF Carburettor provides:

• Improved throttle response.
• Stable idle performance.
• Reliable fuel delivery.
• Smooth acceleration.
• Excellent drivability.
• Durable long-life construction.
• Straightforward servicing and maintenance.
• Ideal for classic Porsche restoration and performance upgrades.

Installation Recommendations

Professional installation and carburettor tuning are recommended for optimum performance.

When fitting a replacement carburettor, it is advisable to inspect or replace:

• Intake manifold gaskets.
• Carburettor mounting hardware.
• Fuel hoses.
• Fuel filter.
• Linkage components.
• Throttle return springs.
• Air filters.
• Ignition components.
• Spark plugs.

Where twin carburettors are fitted, accurate synchronisation and correct jetting are essential to achieve balanced engine performance and maximum efficiency.

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

69210099040

The product you are viewing cross references to these numbers

44 IDF Carburettor 

Upgrade or replace your classic Porsche induction system with this OE Match 44 IDF Carburettor, designed for Porsche 356 and Porsche 912 applications. Supplied as a single carburettor, this unit is styled on the renowned Weber 44 IDF, offering a high-quality solution for engine rebuilds, performance upgrades and replacement of worn or ageing carburettors.

Fits:

• Porsche 911 1965-1968 2.0L / 912 SWB (F)
• Porsche 356 1950-55
• Porsche 356A 1955-59
• Porsche 356B 1959-63
• Porsche 356C 1963-65
• Porsche 914 (1970-1976)

Manufactured to deliver dependable performance and consistent fuel metering, this carburettor is engineered to provide excellent throttle response and smooth power delivery across a wide range of engine speeds. Whether you're restoring a classic Porsche or building a performance-oriented flat-four engine, this OE Match 44 IDF carburettor offers outstanding value, quality and reliability.

Ideal for replacing a damaged carburettor or completing a twin-carburettor installation, this unit provides the precision and durability required for both road and fast-road applications.

What Does the Carburettor Do?

The carburettor is responsible for mixing fuel and air in the correct proportions before delivering the mixture into the engine's intake system.

Its primary functions include:

• Metering fuel accurately.
• Mixing fuel and air for efficient combustion.
• Providing smooth throttle response.
• Supporting reliable cold and warm engine operation.
• Delivering consistent power throughout the rev range.
• Helping maintain engine efficiency and drivability.

A properly functioning carburettor is essential for achieving smooth idle quality, crisp acceleration and dependable engine performance.

Why Replace Your Carburettor?

Carburettors naturally wear over time as internal components become affected by fuel contamination, corrosion and general use.

Replacement is recommended when you experience:

• Fuel leaks.
• Poor idle quality.
• Hesitation under acceleration.
• Flat spots. Difficult starting.
• Excessive fuel consumption.
• Worn throttle shafts.
• Damaged castings.
• Corrosion from modern ethanol-based fuels.
• Inconsistent fuel delivery.

Replacing a worn carburettor restores engine performance while improving reliability and drivability.

Benefits

Installing this OE Match 44 IDF Carburettor provides:

• Improved throttle response.
• Reliable fuel delivery.
• Smooth idle characteristics.
• Consistent engine performance.
• Excellent drivability.
• High-quality construction.
• Straightforward servicing.
• Ideal for classic Porsche restorations and upgrades.

Installation Recommendations

Professional installation and tuning are recommended to achieve optimum engine performance.

When fitting a replacement carburettor, it is advisable to inspect or replace:

• Carburettor mounting gaskets.
• Intake manifold seals.
• Fuel hoses.
• Fuel filter.
• Linkage components.
• Throttle return springs.
• Air filters.
• Spark plugs.

Ignition timing.

Correct jetting and synchronisation are essential when installing multiple carburettors to ensure balanced engine performance.

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

69210099044

The product you are viewing cross references to these numbers

Carburetor actuator reverse lever.



Fits:
Porsche 911 1969-73
Porsche 914/6 1970–1972

Click 'Zoom in' for large parts diagram.
Diagram ref no 22

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

90110872002

The product you are viewing cross references to these numbers

Carburetor atomiser.



Fits:
Porsche 914/6 (1970 - 1971)
Porsche 911 F (1968 - 1971)

Click 'Zoom in' for large parts diagram.
Diagram ref no 68

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

90110098500

The product you are viewing cross references to these numbers

Carburetor Cover Gasket for Solex 40PI-1
The 90110893400 Carburettor Cover Gasket is a Genuine Porsche Original Equipment (OE) sealing component used on early 911 engines with Solex 40 PI-1 carburettors. This gasket compresses evenly under the carburettor cover, maintaining uniform sealing pressure that matches Porsche’s original design intent. It protects against air infiltration, fuel seepage, and contamination, all of which could otherwise adversely affect engine performance and longevity.
Sold each

Fits:
Porsche 911 (early models, 1964–1968) with Solex 40 PI-1 carburettors

Diagram ref no 28

Aged or degraded gaskets can shrink, crack, or compress unevenly, allowing air and vapour leaks that harm engine idle, mixture control, and fuel economy. Replacing this gasket restores the correct sealing surface so the carburettor can maintain proper internal pressures and performance.

When to replace:
•  Carburettor cover is removed for service
•  Evidence of fuel leakage at the carburettor deckel
•   Air leaks detected at idle
•   During carburettor overhaul, rebuild, or restoration

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

90110893400

The product you are viewing cross references to these numbers

Carburetor Cover Gasket for Solex 40PI-1
The gasket creates an airtight, fluid-tight seal between the carburettor cover (deckel) and its housing. This helps prevent vacuum loss, fuel seepage, and contamination entering the carburettor assembly - all of which can negatively affect mixture control, throttle response, and engine performance.
Sold each

Fits:
Porsche 911 (early models, 1964–1968) with Solex 40 PI-1 carburettors

Diagram ref no 28

Installed during carburettor service or rebuild, this gasket sits between the carburettor cover and the main body of the carb. Its uniform compression under the cover helps maintain consistent sealing and lubrication resistance, reducing the risk of air leaks or performance loss.

Aged or degraded gaskets can shrink, crack, or compress unevenly, allowing air and vapour leaks that harm engine idle, mixture control, and fuel economy. Replacing this gasket restores the correct sealing surface so the carburettor can maintain proper internal pressures and performance.

When to replace:
•  Carburettor cover is removed for service
•  Evidence of fuel leakage at the carburettor deckel
•   Air leaks detected at idle
•   During carburettor overhaul, rebuild, or restoration

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

90110893400

The product you are viewing cross references to these numbers

Carburetor return spring for Solex 40PII-4.
This spring is used on Solex 40 PII-4 carburetors fitted to Porsche 356 and 912 models. It mounts to the throttle linkage / butterfly lever on the carburetor, hooked between the throttle shaft arm and a fixed point on the carb body or bracket. 
Sold each.  There are two springs (for dual carb setup) on cars with twin carburetors.

Fits:
Porsche 356 (1950-1955)
Porsche 356A (1955-1960)
Porsche 356B (1960-1963)
Porsche 356C (1964-1965)
Porsche 912 (1965-1969)

Diagram ref no 9

• This spring mounts on the throttle mechanism and provides return force, retracting the throttle valve (or linkage) when the accelerator is released. 
•  Provides tension that ensures the throttle valve doesn’t stick or hang open, which maintains safe and predictable engine operation.
•  Helps maintain consistent throttle response and prevents the linkage from going “over-center” (which could cause the throttle to stay open).

With age, the spring can weaken, fatigue, deform or corrode, reducing its ability to pull the throttle shut securely. Proper replacement restores crisp throttle response, safe idle return behaviour, and reliable drivability. Using a matching (OE Match) spring ensures correct tension, length, hook geometry, and compatibility with the carburetor’s original design.

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

99952200302

The product you are viewing cross references to these numbers

Paper gasket, carburetor to air cleaner bucket, for weber carburetors, 2 required. Sold each.



Fits:
For weber carburetors
Porsche 911/912 1965-69
Porsche 914-6 1970-72

Click 'Zoom in' for large parts diagram.
Diagram ref no 35

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

90110821800

The product you are viewing cross references to these numbers

Paper gasket, carburetor to air cleaner bucket, for weber carburetors, 2 required. Sold each.

Fits:
For weber carburetors
Porsche 911/912 1965-69
Porsche 914-6 1970-72

Diagram ref no 35

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

90110821800

The product you are viewing cross references to these numbers

Carburetor to manifold spacer, fits Solex 40PII-4.

Fits:
Porsche 912 1965 - 1969
Porsche 356 B/C 1600/S90/SC 1960 - 1965

Diagram ref no 2 (for 912) or 4 (for 356)

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

61610839000

The product you are viewing cross references to these numbers

Carburetor to manifold spacer, fits Solex 40PII-4.
The spacer is designed to sit between the carburettor base (typically a SOLEX 40 PII-4) and the intake manifold on classic Porsche models - 356 B/356 C and 912, manufactured to match Porsche OE specification.
Sold each, 4 required per vehicle. 

Fits:
Porsche 912 1965 - 1969
Porsche 356 B/C 1600/S90/SC 1960 - 1965

Diagram ref no 2 (for 912) or 4 (for 356)

This spacer provides the correct separation and sealing interface, ensuring proper carburettor alignment, uniform port matching and preventing heat soak from the manifold into the carburettor. It is manufactured from a high-temperature-resistant to replicate the original design and maintain correct insulating properties.

Ideal for engine rebuilds, intake servicing or performance restoration, this spacer restores the intended clearance, port geometry, and sealing integrity required for reliable induction performance in classic Porsche engines.

Over time, the original spacer can deteriorate, warp or crack because of exposure to heat cycling, vibration and fuel vapour. A compromised spacer may lead to vacuum leaks, mis-metered fuel/air mixture, uneven idle or reduced performance.

Replace this spacer when:
•  Performing a carburettor or intake manifold service or rebuild
•  The original spacer is cracked, delaminated or missing
•  Vacuum leaks or rough idle suggest induction sealing problems
•   Restoring a classic Porsche engine to factory specification

Fitting new spacer ensures the correct spacing, proper sealing and authentic air-flow behaviour you need for lasting engine performance and reliability.

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

61610839000

The product you are viewing cross references to these numbers