Rocker Arms & Tappets

Rocker Arm Shaft Nut.

Genuine Porsche Rocker Arm Shaft Nut retains rocker arm shaft securely to the cylinder head for precise valve timing.
Sold Each.
x12 Required.

Fits:

• Porsche 911 1965-1968 2.0L / 912 SWB (F)
• Porsche 911 1970-1973 2.2L / 2.4L / 2.7L RS LWB (F)
• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• Porsche 911 1975-1977 3.0L Turbo (930)
• Porsche 914 (1970-1976)
• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) TURBO 3.3L 1991-93
• Porsche 964 (911) TURBO 3.6L 1991-93

Diagram Ref No 47

What This Product Does:

The rocker arm shaft is the pivot point upon which the rocker arms rotate, translating camshaft lobes into valve movement. The nut’s job is to clamp that shaft in position so the valvetrain geometry remains correct and the rocker arms maintain alignment under load.

Signs / Symptoms That It Needs Replacement:

• Excessive valvetrain noise (ticking, knocking) because the rocker shaft is not held firmly
  
• Irregular valve motion — valves might not open or close properly
• Misalignment of rocker arms
• In severe cases, mechanical damage to the rocker arms, shafts, or even the camshaft or head if components shift under load

Why Replacement Matters:

• Ensures correct torque and shaft alignment in the rocker arm assembly.
• Prevents vibration, noise, and wear caused by loose or aged hardware.
  
• Critical during rebuilds — reused nuts can lose clamping force or thread accuracy.

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Related, superseded, cross reference or alternative numbers for comparison.

90110537603

The product you are viewing cross references to these numbers

Rocker arm shaft seal. O-ring designed to stop oil leaks from the rocker shafts.
24 required. Priced each.

Fits:
Porsche 911 1965-89
Porsche 930 Turbo 1974-89
Porsche 914-6 1970-72
Porsche 964 C2 / C4 1989-1994
Porsche 964 Carrera RS 3.6L 1992
Porsche 964 Turbo 3.6L 1993-94

Fits to number 25 on diagram.

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Related, superseded, cross reference or alternative numbers for comparison.

91109910352

The product you are viewing cross references to these numbers

Rocker arm shaft seal. O-ring designed to stop oil leaks from the rocker shafts.
24 required. Priced each.

Fits:
Porsche 911 1965-89
Porsche 930 Turbo 1974-89
Porsche 914-6 1970-72
Porsche 964 C2 / C4 1989-1994
Porsche 964 Carrera RS 3.6L 1992
Porsche 964 Turbo 3.6L 1993-94

Fits to number 25 on diagram.

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

91109910352

The product you are viewing cross references to these numbers

Worn rocker arms retard cam timing and rob power. these are the latest heavy duty 930 rockers for optimum reliability.

Fits:
Porsche 911 1965-89
Porsche 964 1989-94

Diagram Ref No 31

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

93010504305

The product you are viewing cross references to these numbers

Rocker Arm.

This item is now an Exchange part and no longer available as new from Porsche. Surcharge applies.

Fits:
Porsche 911 1965-89
Porsche 964 1989-94

Worn rocker arms retard cam timing and rob power. these are the latest heavy duty 930 rockers for optimum reliability.

Diagram Ref No 31

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

930105043EX

The product you are viewing cross references to these numbers

Rocker shaft. Porsche 911 1965-89 / 964 / 914

Fits:
Porsche 911 1965-89
Porsche 930 (911) 1975-89
Porsche 964 1989-94
Porsche 965 (964) Turbo 1989-94
Porsche 914-6 1970-76

Diagram Ref No 27

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

90110534205

The product you are viewing cross references to these numbers

Rocker shaft. Porsche 911 1965-89 / 964 / 914

Fits:
Porsche 911 1965-89
Porsche 930 (911) 1975-89
Porsche 964 1989-94
Porsche 965 (964) Turbo 1989-94
Porsche 914-6 1970-76

Diagram Ref No 27

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

90110534205

The product you are viewing cross references to these numbers