Rocker Arm Shaft Nut. Porsche 911 / 912 / 964 1965-94 - 90110537603
90110537603
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 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 911 1978-1989 3.3L Turbo (930)
- 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
- Porsche 914 (1970-1976)
Information
Rocker Arm Shaft Nut.
Diagram Ref No 47
What This Product Does:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110537603
The product you are viewing cross references to these numbers
Genuine Porsche Rocker Arm Shaft Nut retains rocker arm shaft securely to the cylinder head for precise valve timing.
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x12 Required.
- 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
90110537603
90110537602
90110537601
The product you are viewing cross references to these numbers
Price: €7.22
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