Camshaft gears / sprockets and fixings
- 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)
Camshaft bolt - M12 x 1.5 x 50
Fits:
Porsche 911 - 1982 to 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998
Click 'Zoom in' for large parts diagram.
Diagram ref no 25
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90008207201
The product you are viewing cross references to these numbers
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- 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) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97

Fits:
Porsche 911 1965-89
Click 'Zoom in' for large parts diagram.
Diagram Ref No 6.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110505500
The product you are viewing cross references to these numbers
- 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)

Fits:
Porsche 911 1965-89
Click 'Zoom in' for large parts diagram.
Diagram Ref No 6.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110505500
The product you are viewing cross references to these numbers
- 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)
Sold each - 2 required per car
Fits:
Porsche 911 1965-81
Porsche 912 1965-69
Porsche 930 1975-81
Porsche 914 1970-76
Diagram ref no 41
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110517200
The product you are viewing cross references to these numbers
- 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 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)
Sold each - 2 required per car
Fits:
Porsche 911 1965-81
Porsche 912 1965-69
Porsche 930 1975-81
Porsche 914 1970-76
Diagram ref no 41
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110517200
The product you are viewing cross references to these numbers
- 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 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)

Fits:
Porsche 911 1965-89
Porsche 964 1989-94
Porsche 993 1994-98
Porsche 914 1970-76
Click 'Zoom in' for large parts diagram.
Diagram ref no 36
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110558302
The product you are viewing cross references to these numbers
- 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) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 914 (1970-1976)
Material: Steel
Inside Diameter: 30 MM
Fits:
Porsche 911 1965-89
Porsche 930 1978-79
Porsche 914 1970-76
Diagram ref no 36
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110558302
The product you are viewing cross references to these numbers
- 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) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 914 (1970-1976)
The Genuine Porsche 90110554604 Camshaft Timing Gear is the factory drive sprocket that transfers motion from the timing chain to the camshaft on classic air-cooled engines. Precision-cut teeth and OEM-spec indexing ensure accurate valve timing, quiet chain operation, and long service life.
Fits: Left or Right, Sold each.
Fits:
Porsche 911 1965 - 1989
Porsche 964 1989 - 1994
Porsche 993 1994 - 1998
Diagram ref no 22.
Where it fits / what it does
• Location: Camshaft nose, inside the timing chain housing
• Function: Meshes with the timing chain to drive the camshaft at precise phase relative to the crankshaft
Why & when to replace:
• Tooth wear or pitting, chain elongation damage, or abnormal noise
• During timing chain, tensioner, or full top-end rebuilds
• To restore correct cam timing after diagnosing erratic valve events or metal debris in the housing
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110554604
The product you are viewing cross references to these numbers
- 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) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
This camshaft timing gear is a direct-fit replacement for the factory Porsche drive gear, it ensures accurate chain engagement, quiet operation, and long-term reliability.
Fits: Left or Right, Sold each.
Fits:
Porsche 911 1965 - 1989
Porsche 964 1989 - 1994
Porsche 993 1994 - 1998
Diagram ref no 22.
This sprocket (gear) is part of the timing / camshaft drive system, engaging with the timing chain (or drive chain) to convert crankshaft rotational motion into synchronized camshaft motion. It ensures that the camshafts open and close valves at the correct moments relative to piston position, essential for proper combustion, engine efficiency, and emissions. Accurate tooth profile, hardness, and alignment are crucial—improperly manufactured or worn sprockets can lead to timing drift, noise, chain jump, or catastrophic engine damage.
Original stock / old timing gears can wear, fatigue, or lose tooth integrity over time — especially under heat cycles and chain load. A worn or mismatched sprocket may cause timing chain noise (ticking, rattle), timing drift, or—worst case—chain jump or engine damage. An new replacement restores correct tooth geometry, material hardness, and precision alignment, ensuring the timing system operates smoothly and reliably.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110554604
The product you are viewing cross references to these numbers
- 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) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97

Fits:
Porsche 911 1969-73
For cars with mechanical fuel injection only
Click 'Zoom in' for large parts diagram.
Diagram ref no 18
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90111002300
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Fits:
Porsche 911 1969-73
For cars with mechanical fuel injection only
Click 'Zoom in' for large parts diagram.
Diagram ref no 18
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90111002300
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Sold each
Fits:
Porsche 356B / 356C - 1960 to 1965
Porsche 911 - 1978 to 1989
Porsche 924S - 1986 to 1988
Porsche 944 - 1985 to 1991
Porsche 968 - 1992 to 1995
Porsche 928 - 1978 to 1995
Related reference numbers
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90007437201
The product you are viewing cross references to these numbers
- 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 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 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
- Porsche 356B 1959-63
- Porsche 356C 1963-65

Fits:
Porsche 911 - 1965 to 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998
Porsche 914-6
Click 'Zoom in' for large parts diagram.
Diagram ref no 6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110556100
The product you are viewing cross references to these numbers
- 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) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 914 (1970-1976)
Restore the precision of your Porsche flat-six engine’s timing chain drive with this sprocket or intermediate shaft gear. Designed for Porsche 911/912 (verify engine code and part number), this sprocket mounts on the intermediate shaft and works in conjunction with the timing chain to drive the camshafts and maintain correct valve timing.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
Fits On To Diagram Ref No 43
What This Product Does:
- The timing chain sprocket mounted on the intermediate shaft enables the correct transfer of rotational motion from the crank and timing chain to the camshaft drive or auxiliary drive components. In essence, it ensures proper timing of the valve train.
- The intermediate shaft (IMS) inside many Porsche air-cooled flat-six engines sits between the crankshaft and camshafts; the sprocket is part of that chain/gear drive mechanism. If the sprocket is worn, mis-dimensioned or damaged, then the timing chain may skip or the cam timing may drift.
- Because this component sits within the timing chain gear housing, correct fitment, tooth profile, heat-treatment, alignment and material spec matter a lot for high RPM reliability.
Symptoms & Signs You Might Need Replacement:
- Timing chain noise: rattling, clatter or audible chain slap in the timing chain housing, especially after startup or under load — this may indicate the sprocket tooth profile or mounting is compromised.
- Warning lights or mis-firing: If engine timing is off, cylinder performance may suffer, you might get rough running, mis-fires, or even engine damage.
- Wear/physical damage: On inspection of the sprocket, if tooth faces are chipped, worn, suspiciously polished, or suspect in dimension, replacement is required.
- During engine rebuild: If you are opening the timing chain case (IMS housing) or rebuilding the engine, it is good practice to replace the sprocket while access is open — because even if it looks OK, it’s a high-stress part and cheap insurance compared to major failure.
- High mileage or vintage engine: Because wear accumulates over decades, even if performance seems OK you might choose proactive replacement to avoid future major engine work.
- Engine timing integrity: The sprocket is a critical part of the chain drive that controls valve timing. A damaged sprocket could result in chain jump, incorrect cam timing, possible valve‐to‐piston contact or catastrophic failure.
- Longevity and reliability: Since this part operates hidden within the timing cover, failure often means heavy labour (engine out or major removal). Getting it right the first time reduces risk of future repair.
- Economical preventive maintenance: While replacing a sprocket adds cost at rebuild time, it’s far less expensive than engine damage that might result from a worn or failing sprocket – so replacing proactively is a wise choice.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110501312
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
Sold each, 2 required per engine
Fits:
Porsche 911 1982 - 1989
Porsche 964 1989 - 1994
Porsche 993 1994 - 1998
Diagram ref no 40A
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99310516350
The product you are viewing cross references to these numbers
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- 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) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Sold each - 2 per engine

Fits:
Porsche 911 - 1982 to 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998
Click 'Zoom in' for large parts diagram.
Diagram ref no 40A
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99310516350
The product you are viewing cross references to these numbers
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- 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) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Camshaft Gears, Sprockets & Fixings – Precision Timing Components for Porsche Engines
Camshaft gears, sprockets, and fixings are essential parts of your Porsche’s timing system. They synchronise the rotation of the camshaft and crankshaft, ensuring valves open and close precisely in tune with piston movement. This precision directly affects engine efficiency, performance, and smoothness.
At Design911, we supply a comprehensive range of genuine and high-quality camshaft gears, sprockets, and fixings for various Porsche models including 924, 944, 928 ,911, Boxster, Cayman, Cayenne, Macan, and Panamera models. Each part is precision-engineered for exact timing accuracy, strength, and durability — ensuring optimal engine operation across all driving conditions.
What Do Camshaft Gears, Sprockets & Fixings Do?
These components form the backbone of your Porsche’s valve
timing system, controlling the engine’s breathing process. Their functions
include:
- Transferring
rotational force from the crankshaft to the camshaft.
- Maintaining
correct valve timing for efficient combustion and power output.
- Supporting
smooth engine operation by synchronising valve and piston movement.
- Reducing friction and wear through precision gear alignment and secure fixings.
High-quality timing components are vital for maintaining Porsche’s signature performance and engine reliability.
Why Do Camshaft Gears, Sprockets & Fixings Fail?
Over time, these parts experience constant mechanical
stress, heat, and vibration. When worn or damaged, they can cause serious
timing issues and potential engine failure. Common causes of failure include:
- Tooth
wear or chipping on gears and sprockets.
- Corrosion
due to oil contamination or moisture.
- Misalignment
from improper installation or worn tensioners.
- Loose
or stripped fixings affecting camshaft timing stability.
- Age-related metal fatigue under prolonged use or performance driving.
Symptoms of worn components include engine noise (rattling or ticking), timing irregularities, loss of power, or check engine light warnings.
Why Replace Worn Timing Components?
Replacing damaged or worn camshaft gears, sprockets, and fixings ensures your Porsche’s engine maintains precise timing and dependable performance. Neglecting these parts can lead to timing failure — potentially resulting in serious internal engine damage.
Benefits of replacement include:
- Restored valve timing accuracy and smooth engine operation.
- Improved performance, torque, and throttle response.
- Enhanced reliability and longevity of engine components.
- Reduced risk of catastrophic engine damage.
All camshaft gears and sprockets from Design911 are crafted from high-strength steel or lightweight alloys, designed for precision meshing, minimal friction, and long-term durability under demanding driving conditions.