Engine intake valve. Porsche 356A / 356B 1955-63 (OE Match)  ❭  PCG54605203

OE Match engine inlet valve for Porsche 356A and 356B models. Four are required and each valve is supplied individually.

Fits

• Porsche 356A 1955–59
• Porsche 356B 1959–63

Diagram reference 10

What This Product Does

The intake valve controls the entry of the air and fuel mixture into the combustion chamber. When closed, it also contributes to the seal needed to maintain cylinder compression during the engine cycle.

Functions

• Controls intake flow into the combustion chamber
• Helps maintain cylinder sealing and compression
• Supports correct combustion and smooth engine operation
• Replaces a worn or damaged original intake valve

Technical Details

• Product type: engine inlet valve
• Valve dimensions: 10 mm x 130.6 mm
• Quantity required: four; supplied individually

Symptoms of Fault

• Low or uneven cylinder compression
• Rough idle or persistent misfiring
• Reduced engine power
• Pitting, burning or physical damage to the valve face
• Poor sealing identified during compression or leak-down testing

Why Replacement Matters

A worn, burnt or damaged intake valve may no longer seal correctly against its seat, allowing compression to escape and disrupting intake flow. Replacement is commonly carried out during cylinder-head refurbishment or an engine rebuild to restore correct valve operation. The valve seat, guide, spring and associated retaining components should also be inspected before assembly.

FAQs

• How many valves are required? Four are required, with each valve supplied individually.
• Is this an intake or exhaust valve? This part is an engine intake valve.
• Which models does it fit? It is listed for Porsche 356A and Porsche 356B models.

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

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Related, superseded, cross reference or alternative numbers for comparison.

PCG54605203

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