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Cylinder head retaining nut, Small head. Porsche 356 B / C 1960-69 / 912 ❭ 61610438300
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Fits:
Porsche 356 B / C 1960-69
Porsche 912 1965-69
Diagram ref no 21
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
61610438300
The product you are viewing cross references to these numbers
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
Fits:
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92810619704
The product you are viewing cross references to these numbers
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
This OE Match cylinder head plug is a replacement sealing plug used in the engine cylinder head. It is designed to match the original-style fitment and function, helping restore a secure seal where the plug is fitted in the cylinder head assembly.
Fits:
Porsche 928 S2 / S4 / GT / GTS (1985-1995)
Porsche 944 S / S2 (1987-1991)
Porsche 968 (1992-1995)
Diagram ref no 12
The cylinder head plug seals an opening in the cylinder head to help prevent oil, coolant, or pressure loss where applicable. A correctly fitted plug is important for maintaining engine sealing integrity and reliable operation
Functions
• Replaces the cylinder head plug
• Helps seal the cylinder head assembly
• Supports correct engine sealing
• Helps prevent leaks from worn or damaged plugs
• Suitable for cylinder head service or engine rebuild work
• Replaces corroded, loose, damaged, or previously removed plugs
• OE Match replacement for Porsche engine repair.
Why Replace This Part?
Cylinder head plugs can corrode, loosen, leak, become damaged, or require replacement during cylinder head overhaul. A failed or incorrectly sealing plug may cause fluid leakage, pressure loss, contamination, or engine bay residue. Replacing the plug helps restore proper sealing and supports reliable engine operation.
When to Replace This Part
• Cylinder head service or engine rebuild is being carried out
• The original plug is leaking, corroded, loose, or damaged
• The plug has been removed during machining or repair
• Oil or coolant seepage is visible around the plug area
• Engine sealing components are being refreshed
• Preventative replacement is required during restoration
• The vehicle is undergoing Porsche 928, 944, or 968 engine repair.
Where it fits on the car
This plug fits within the engine cylinder head assembly. Exact position can vary depending on model, engine type, and cylinder head layout.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92810521500
The product you are viewing cross references to these numbers
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95

Fits:
Porsche 928 S2 / S4 / GT / GTS (1985-1995)
Porsche 944 S / S2 (1987-1991)
Porsche 968 (1992-1995)
Click 'Zoom in' for large parts diagram.
Diagram ref no 12
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92810521500
The product you are viewing cross references to these numbers
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