Main jet carrier for Solex 40 PII-4 carburetor. Porsche 356 / 912  ❭  61610091401

Main jet carrier for Solex 40 PII-4 carburetor.
The holder that seats the main jet inside the Solex 40 PII-4 carburetor. It establishes the jet’s position and fuel pick-up height in the emulsion well, ensuring stable mixture delivery from mid-range through high rpm. Manufactured to OE dimensions and thread form, it seals correctly in the carb body and maintains accurate fuel metering with your chosen jet size.
Sold each, 2 required per vehicle.

Fits:
Porsche 356 / 356A  CARRERA 1500 GS/GT (M 90 501 >> 91 000) 1950 - 1959
Porsche  356B / 356C  (Model: 1600 S90/SC, CARRERA, 587/1 692/3A)  1960-1965
Porsche 912 1.6L 1965 - 1969  (Engine code:  616/36/37)
Porsche 912 1.6L 1965 - 1969  (Engine code: 616/39/40)

Diagram ref no 21

•  Use cases: Ideal during carb rebuilds, restoring stuck/damaged carriers, or standardizing mismatched carb internals to factory spec.
•  Function: Positions and seals the main jet; maintains correct emulsion well height and fuel flow path
•  Installation: Fit with correct main jet size; ensure seat is clean, threads lightly oiled, and torque gently to avoid damaging the carb body

Over time, the main jet carrier can suffer from thread wear, corrosion, or deformation caused by repeated jet changes and fuel exposure. A damaged or loose carrier may cause fuel leakage, poor jet seating, or inconsistent mixture flow. Replace it whenever threads are stripped, the hex is rounded, or corrosion is visible. It’s also recommended during any carburetor rebuild or tuning service to ensure accurate fuel metering and stable performance in your Porsche 356 or 912.

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