Cylinder head retaining nut, Large head. Porsche 356 B / C / 912 1960-69 › 61610438101

This large-head cylinder head retaining nut from OE Match is intended for the listed Porsche 356 B / C and 912 applications. It forms part of the cylinder head fastening assembly.

Fits

Porsche 356 B / C 1960-69
Porsche 912 1965-69

The catalogue grouping is not confirmation of suitability for a 911 engine. Check fitment for your specific vehicle (model, year, engine) before ordering.

Diagram reference: 20.

What This Product Does

The nut works with the corresponding cylinder head fastening components to retain the head in its installed position. Selecting the correct nut version matters when replacing damaged hardware or assembling an engine after head work.

Functions

• Provides threaded retention within the cylinder head assembly.
• Replaces the specified large-head nut at the applicable fastening position.
  
  

Technical Details

• Part reference: 61610438101.
• Brand: OE Match.
• Version: large head.

Symptoms of Fault

Loose fasteners, corrosion or damage found during dismantling warrant inspection. Oil leakage or reduced compression can have several causes and should not be treated as proof that this nut requires replacement.

Why Replacement Matters

Renewing damaged or incorrectly specified fastening hardware during cylinder head work helps avoid reassembling the engine with unsuitable components. Inspect the associated studs, washers and seating surfaces, and follow the workshop procedure for the exact engine. OE Match focuses on Porsche replacement applications; confirm the reference and nut version against the components being removed.