Carburetors & Parts
Price is for one kit, 2 required.
Fits:
For Solex 40 PII-4 and 44 PII-4
Porsche 356 B/C 1.6 01/59-12/65
Porsche 912 1.6 01/65-07/68
Diagram ref no 42 and 43.
This set combines two key components from the idle-circuit of the Solex carburettor used on Porsche 356 B/C and early 912 models:
• Idle Adjusting Screw ( 616100927010) - a fine-thread steel screw which allows precise adjustment of the throttle-plate position at idle, controlling airflow and engine RPM.
• Pressure/Compression Spring (61610081400) - the matched spring which seats under the adjusting screw and maintains the correct preload and return force on the idle throttle plate.
Together they provide stable, repeatable idle setting and crisp low-speed throttle transition. It produced in correct dimensions, thread pitch, spring rate and material to ensure the idle system works as intended by Porsche.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
61610092701
The product you are viewing cross references to these numbers
- 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

FITS:
Fits Solex 40PII-4 with single shaft (idle screws not included).
Porsche 356, 356A, 356B, 356C and 912 models with a solid throttle shaft.
Price is for one kit.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
61610890202
The product you are viewing cross references to these numbers
- 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
Price is for one kit.

Fits Solex 40PII-4 with split shaft
Porsche 356, 356A, 356B, 356C models with a divided throttle
Porsche 912 models with a divided throttle
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
61610890203
The product you are viewing cross references to these numbers
- 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
Venturi Guide Funnel / Air Inlet Sleeve - part number 61610093000 - is a precision-cast 32 mm air guide insert designed for use in Solex carburetors fitted to Porsche 356 and 912 engines. This venturi element controls and accelerates incoming air through the carburetor throat, optimizing pressure drop and improving air-fuel atomization for smooth, balanced engine performance.
Sold each, 2 required per vehicle.
Fits:
Porsche 356B/C 1600 S90/SC 1960 - 1965
Porsche 912 1965 - 1969
Diagram ref no 36
The OE Match venturi perfectly replicates the internal taper, contour, and surface finish of the original Porsche component. Its precision-machined dimensions ensure accurate airflow calibration and consistent response across all engine speeds.
• Diameter: 32 mm
• Function: Shapes and accelerates airflow through the carburetor venturi
• Fitment: Porsche 356 / 912 engines with Solex carburetors
• Position: Carburetor air intake throat
• Benefits: Restores original flow efficiency, enhances atomization, improves throttle response
• Installation: Press-fit into carburetor body; ensure correct orientation for airflow direction
Ideal for carburetor rebuilds, tuning, or period-correct restorations, this venturi restores authentic drivability, throttle smoothness, and performance efficiency in classic air-cooled Porsche engines.
Venturi inserts are critical for maintaining the proper airflow characteristics within the carburetor. Over time, the original funnels can suffer from corrosion, deformation, or buildup of carbon and fuel residue, leading to poor mixture quality and reduced performance.
Replace this part when:
• Performing a carburetor rebuild or tuning service
• The original venturi shows wear, pitting, or distortion
• Upgrading to restore original performance calibration
• Replacing damaged or missing venturi sleeves
Installing a new 32 mm Venturi Funnel ensures consistent airflow, crisp throttle response, and the precise carburetor performance your classic Porsche was engineered for.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
61610093000
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356B 1959-63
- Porsche 356C 1963-65


Fits:
Porsche 356B (60-63) / 356C (64-65)
Porsche 912
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Price is for each.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
61610890102
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356B 1959-63
- Porsche 356C 1963-65

Throttle lever 40 IDA3C1
Suits Weber 40IDA3C1
Click 'Zoom in' for large parts diagram
Diagram ref no 49 (LEFT) or 50 (RIGHT).
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110096
The product you are viewing cross references to these numbers
- 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

Throttle lever 46 IDA3C1
Suits Weber 46 IDA3C1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9900531
The product you are viewing cross references to these numbers
- 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
Fits:
Porsche 356A - 1955 to 1959
Porsche 356B - 1959 to 1963
Porsche 356C - 1963 to 1965
Porsche 912 - 1965 to 1968
For
356 with Pallas-Zenit 32NDIX carburettors
912 with Solex 40 PII-4 carburettors
Diagram ref no 11
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
61608011
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65

This throttle shaft is the factory-supplied pivot for the throttle plate lever in the SOLEX 40 PII-4 carburettor system, used on vintage Porsche models such as the 356 and 912.
Fits:
Porsche 356 B/C - 1600 S90/SC, CARRERA, 5871 - 1960 - 1965
Porsche 912 1.6L 1965 - 1968 (Engine code: 616/36/37)
Diagram ref no 2
Manufactured by Porsche to original specifications, this shaft offers exact dimensions, hardened steel alloy construction, and precision machining to ensure smooth throttle linkage movement, accurate carburettor control, and long-term reliability.
When you restore an intake or carburettor system, using the Genuine Porsche 61610091202 shaft ensures that your linkage geometry, tolerances, and throttle feel match the original factory setup — preserving performance, authenticity, and resale value.
Over many years of use, throttle shafts can suffer from wear in the bore, light corrosion or loss of firm fit, which may cause throttle linkage play, erratic idle, or poor throttle response.
Replace this shaft when:
• Rebuilding or servicing the carburettor system
• The original shows visible wear, misalignment or movement
• Restoring a vehicle to exact factory specification for originality
Installing the Genuine Porsche 61610091202 shaft ensures your carburettor linkage remains precise, the throttle feel remains crisp and your classic Porsche performs as originally engineered.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
61610091202
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Throttle shaft is designed to replicate the original shaft (OEM 616-100-912-02) used in the Solex 40 PII-4 carburetor systems on classic Porsche 356 and Porsche 912 models. It serves as the pivot axis for throttle plate levers, ensuring precise linkage movement and correct servo-function for the carburetor’s airflow control.
Fits:
Porsche 356 B/C - 1600 S90/SC, CARRERA, 5871 - 1960 - 1965
Porsche 912 1.6L 1965 - 1968 (Engine code: 616/36/37)
Diagram ref no 2
Ideal for carburetor rebuilds, performance restoration or engine servicing, offers the dependable fit and function expected for classic Porsche engine repair.
• Function: Acts as pivot axis for the throttle plate lever in the carburetor
• Position: Carburetor body
• Benefits: Precision fit, restores correct throttle action, prevents linkage play
• Installation: Remove old shaft, clean bore, fit new shaft ensuring correct lever routing
Throttle shafts can suffer from wear, bore clearance growth or corrosion over many miles. Play in the shaft bore can lead to poor throttle response, uneven idle or mis-metered fuel delivery.
Replace this part when:
• Performing a carburetor rebuild or overhaul
• You observe throttle linkage looseness or play
• The original shaft shows wear, corrosion or incorrect fitment
• Your engine is being restored to proper specification
Installing new Throttle Shaft ensures accurate carburetor linkage action, restores original performance feel, and contributes to smooth, stable engine operation in your classic Porsche.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
61610091202
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356B 1959-63
- Porsche 356C 1963-65

Fits:
Porsche 356 A/B/C 1.5-1.6 01/55-12/65
Porsche 912 1.6 01/65-02/70
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65

Service kit to suit the Weber 40mm AND 46MM triple carburettor as fitted to many popular
performance applications including Porsche, Ferrari, Lamborghini and Renault
Suits:
Weber 40IDA3C
Weber 40IF3C
Weber 40IDL3C
Weber 46IDA3C
plus many more
Please note that this kit will not service the 40IT
Service kits include gaskets, seals, diaphrams and needle/seat, and one kit is required per carburettor
Please note that service kits do not include jets, however these are available seperately from Webcon if required.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9210760502
The product you are viewing cross references to these numbers
- 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

356/912 2 X weber 40IDF replaces Solex
Webcon performance kit for the Porsche 356
Superb quality Webcon performance kit contains
2 x Authentic Spanish Weber 40IDF carburettors
2 x British made manifold adaptor plates and fittings
2 x air filters
Carburettors are supplied calibrated as follows:
venturis 32mm
Main jets 125
Air Corr 180
Idle jets 55
E/Tubes F11
This will work really well on a stock engine, but we always recommend that, to achieve maximum power, driveability and efficiency, you have the carburettors professionally set up on a rolling road.
Please note that, owing to our policy of continous improvement, kit contents may be subject to change withour prior notice.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PPO201
The product you are viewing cross references to these numbers
- 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

356/912 2 X weber 40IDF replaces Zenith
Webcon performance kit for the Porsche 356 and 912
Superb quality Webcon performance kit contains:
2 x Authentic Spanish Weber 40IDF carburettors
2 x manifolds and fittings
2 x air filters
Carburettors are supplied calibrated as follows:
venturis 32mm
Main jets 125
Air Corr 180
Idle jets 55
E/Tubes F11
This will work really well on a stock engine, but we always recommend that, to achieve maximum power, driveability and efficiency, you have the carburettors professionally set up on a rolling road.
Please note that, owing to our policy of continous improvement, kit contents may be subject to change withour prior notice.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PPO202
The product you are viewing cross references to these numbers
- 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

40PII Service Kit
Service kit to suit the Solex 40PII Service kit as fitted
Service kits include gaskets, seals, diaphrams and needle/seat
Please note that service kits do not include jets, however these are available separately from Webcon if required.
40 PII
40 P11
PORSCHE
912
1600SC
356 CARRERA 356
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9611748000
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)
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Laser cut. yellow zinc passivate plated.

- 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
Precision Carburetors & Components – Heritage
Performance and Reliability for Porsche Classics
Carburetors remain the beating heart of many classic
Porsche engines, delivering the perfect air-fuel mixture for smooth,
responsive combustion. At Design911, we offer a comprehensive range of high-quality
carburetors and replacement components designed to maintain or enhance the
authentic driving experience of vintage and air-cooled Porsche models.
From complete carburetor assemblies to jets, diaphragms, gaskets, floats, and linkages, our products are engineered to precise manufacturer standards, ensuring consistent performance, easy tuning, and reliable fuel delivery — whether for restoration or motorsport use.
What Do Carburetors and Carburetor Parts Do?
A carburetor’s role is to blend fuel and air in the correct ratio before it enters the engine. This process ensures efficient combustion, smooth throttle response, and optimal power output.
Core Functions:
- Regulate
air-fuel mixture for various engine speeds and loads.
- Deliver
consistent fuel flow for smooth idling and acceleration.
- Maintain
throttle response across changing temperatures and altitudes.
- Support efficient combustion and improved drivability in heritage engines.
Modern performance replacements and rebuild kits allow older Porsche models to retain their period-correct feel while achieving modern levels of reliability.
Why Do Carburetors Fail?
Over time, carburetors and their internal components degrade
due to fuel varnish, dirt contamination, and mechanical wear. Common
failure symptoms include:
- Hard
starting or stalling due to clogged jets or passages.
- Uneven
idling or misfiring from air leaks or worn gaskets.
- Poor
acceleration or fuel economy caused by sticking floats or needle
valves.
- Fuel leaks or drips from perished seals or warped housings.
Regular inspection and replacement of worn parts prevent poor performance, fuel inefficiency, and potential engine damage.
Why Replace with Precision-Engineered Carburetor Components?
Replacing worn components with precision-engineered carburetor parts ensures your Porsche’s engine maintains its legendary throttle feel and power delivery.
Key Benefits:
- Restores
consistent air-fuel mixing and smooth engine operation.
- Improves cold starting and throttle response.
- Eliminates
leaks and uneven idle, improving drivability.
- Extends
engine life through correct fueling and reduced detonation risk.
- Maintains
heritage authenticity with manufacturer-quality materials and
machining.
- Perfect compatibility with period-correct Porsche carburetor systems (e.g., Weber, Solex, Zenith).
Whether you’re rebuilding a classic 911, 914, or 356, our selection of carburetors and components delivers modern precision with period-correct performance.
Highlights:
- Complete
range of carburetors and rebuild components for Porsche classics.
- Precision-machined
parts ensure reliable fuel delivery and response.
- Manufacturer-quality
fitment for seamless installation.
- Improved
combustion efficiency and performance consistency.
- Compatible with Weber, Solex, and Zenith systems.
- Ideal for engine restorations, rebuilds, and tuning projects.