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Cylinder head valve cover. classic Porsche 356 - 59710430500
59710430500/1
Vehicle Group
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Information
Cylinder head valve cover. classic Porsche 356
Two required per car. Sold each.
Fits:
Porsche 356 pre A 1950–1955
Porsche 356 A-T1 1955–1957
Porsche 356 A-T2 1958–1959
Porsche 356 B-T5 1960–1961
Porsche 356 B-T6 1962–1963
Porsche 356 C 1964–1965/66
Click 'Zoom in' for large parts diagram.
Diagram ref no 22
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
59710430500
The product you are viewing cross references to these numbers
Two required per car. Sold each.
Fits:
Porsche 356 pre A 1950–1955
Porsche 356 A-T1 1955–1957
Porsche 356 A-T2 1958–1959
Porsche 356 B-T5 1960–1961
Porsche 356 B-T6 1962–1963
Porsche 356 C 1964–1965/66
Click 'Zoom in' for large parts diagram.
Diagram ref no 22
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
59710430500
59710430500
The product you are viewing cross references to these numbers
Price: €226.10
In stock
Related products
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Information
Replacement spark plug tube with new o-rings.
This spark plug tube is engineered as a direct replacement for the original Porsche spark plug tube. It provides a sealed, precision-fit channel through the cylinder head for the spark plug, preventing coolant ingress while supporting proper plug alignment and ignition performance.
Sold individually, 6 required per engine.
Fits:
Porsche 986 Boxster / Boxster S 1997 - 2002
Porsche 996 C2 / C4 3.4L 1998 - 2001
Diagram ref no 27, 28 and 29.
The spark plug tube provides a protective and sealed passage for the spark plug through the cylinder head. It:
• Supports and protects the spark plug from contamination by engine coolant
• Prevents coolant intrusion into the spark plug well
• Maintains electrical insulation and correct plug orientation
• Helps preserve consistent ignition performance and combustion integrity
Spark plug tubes are subjected to age, heat, coolant chemicals, and vibration. Over time the tube can stiffen, crack, or lose sealing effectiveness, allowing coolant to seep into the plug well. This often leads to misfires, poor starting, coil damage, or electrical shorts, and is a common service item on aging Porsche M96 engines. Replacing compromised tubes with a high-quality OE Match spark plug tube restores the correct seal and prevents expensive ignition coil or wiring damage, especially during engine rebuilds, head gasket services, or preventative maintenance.
When to replace:
• During cylinder head removal or service
• Evidence of coolant in spark plug wells
• Misfires or ignition issues traced to moisture/coolant
• Cracked, brittle, or deteriorated tube material
• Preventive refresh on high-mile engines
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610532552
The product you are viewing cross references to these numbers
This spark plug tube is engineered as a direct replacement for the original Porsche spark plug tube. It provides a sealed, precision-fit channel through the cylinder head for the spark plug, preventing coolant ingress while supporting proper plug alignment and ignition performance.
Sold individually, 6 required per engine.
Fits:
Porsche 986 Boxster / Boxster S 1997 - 2002
Porsche 996 C2 / C4 3.4L 1998 - 2001
Diagram ref no 27, 28 and 29.
The spark plug tube provides a protective and sealed passage for the spark plug through the cylinder head. It:
• Supports and protects the spark plug from contamination by engine coolant
• Prevents coolant intrusion into the spark plug well
• Maintains electrical insulation and correct plug orientation
• Helps preserve consistent ignition performance and combustion integrity
Spark plug tubes are subjected to age, heat, coolant chemicals, and vibration. Over time the tube can stiffen, crack, or lose sealing effectiveness, allowing coolant to seep into the plug well. This often leads to misfires, poor starting, coil damage, or electrical shorts, and is a common service item on aging Porsche M96 engines. Replacing compromised tubes with a high-quality OE Match spark plug tube restores the correct seal and prevents expensive ignition coil or wiring damage, especially during engine rebuilds, head gasket services, or preventative maintenance.
When to replace:
• During cylinder head removal or service
• Evidence of coolant in spark plug wells
• Misfires or ignition issues traced to moisture/coolant
• Cracked, brittle, or deteriorated tube material
• Preventive refresh on high-mile engines
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610532552
99970734341
99970721540
The product you are viewing cross references to these numbers
Price: €6.25
In stock
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Information
Camshaft adjuster seal.
This is a sealing ring for the timing chain tensioner used in Porsche M96/M97 engines (996, early Boxster, Cayman, etc.). Its purpose is to seal the hydraulic timing chain tensioner, which relies on engine oil pressure to keep the timing chain tight and correctly tensioned.
Fits:
Porsche 986 Boxster / S >>2001
Porsche 996 C2 / C4 >>2001
Diagram ref no 20
• Position on Vehicle: Installed within the engine timing cover/tensioner housing area - interacts directly with the chain tensioner mechanism to hold hydraulic pressure and oil flow correctly.
• Applications: Especially recommended when performing timing chain service, chain guide/tensioner replacement or when the original seal shows oil seepage or has been re-used in high-load service conditions.
In the intricate timing chain system of the M96/M97 engines, the tensioner seal is critical for maintaining correct hydraulic pressure and preventing oil leakage. A worn or failed seal can allow pressure loss, cause chain slack, timing drift or increased engine stress - even leading to damage if timing is compromised. Replacing this seal ensures the tensioner works as designed, helps maintain timing chain alignment and preserves the overall health of your engine.
When and why to replace:
• You are already servicing the timing chain, tensioner, or guides.
• Noticing oil leaks or seepage around the timing cover or tensioner area.
• Engine exhibits timing-chain noise, erratic timing or hydraulic pressure issues.
• High-mileage engine where original seals have aged or may be brittle.
• Preventative maintenance during major service to avoid future timing-chain failures.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610522352
The product you are viewing cross references to these numbers
This is a sealing ring for the timing chain tensioner used in Porsche M96/M97 engines (996, early Boxster, Cayman, etc.). Its purpose is to seal the hydraulic timing chain tensioner, which relies on engine oil pressure to keep the timing chain tight and correctly tensioned.
Fits:
Porsche 986 Boxster / S >>2001
Porsche 996 C2 / C4 >>2001
Diagram ref no 20
• Position on Vehicle: Installed within the engine timing cover/tensioner housing area - interacts directly with the chain tensioner mechanism to hold hydraulic pressure and oil flow correctly.
• Applications: Especially recommended when performing timing chain service, chain guide/tensioner replacement or when the original seal shows oil seepage or has been re-used in high-load service conditions.
In the intricate timing chain system of the M96/M97 engines, the tensioner seal is critical for maintaining correct hydraulic pressure and preventing oil leakage. A worn or failed seal can allow pressure loss, cause chain slack, timing drift or increased engine stress - even leading to damage if timing is compromised. Replacing this seal ensures the tensioner works as designed, helps maintain timing chain alignment and preserves the overall health of your engine.
When and why to replace:
• You are already servicing the timing chain, tensioner, or guides.
• Noticing oil leaks or seepage around the timing cover or tensioner area.
• Engine exhibits timing-chain noise, erratic timing or hydraulic pressure issues.
• High-mileage engine where original seals have aged or may be brittle.
• Preventative maintenance during major service to avoid future timing-chain failures.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610522352
99610522352
99610522351
The product you are viewing cross references to these numbers
Price: €14.28
Delayed delivery
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Information
Cylinder head bolt long. M10 x 230
Cylinder head bolts are essential structural fasteners used in modern engines to clamp the cylinder head, head gasket and engine block together. The OE Match bolt is the long version used in Porsche M96 and M97 engines found in various Boxster, Cayman and 911 models.
Sold individually, 24 bolts required per engine.
Fits:
Porsche 986 Boxster 2.7L / S 3.4L 2003 - 2004
Porsche 987.1 Boxster 2005 - 2008
Porsche 987C.1 Cayman 2005 - 5008
Porsche 996 C2 / C4 / C4S 2002 - 2005
Porsche 997.1 Carrera 2005 - 2008
Diagram ref no 20.
The cylinder head bolt applies the precise clamping force needed to hold the cylinder head against the engine block while compressing the head gasket. This ensures a sealed combustion chamber and prevents coolant or oil leakage. Correctly functioning head bolts are critical to maintaining engine compression, cooling efficiency and overall engine reliability.
Function
• Engine Assembly Fastening: Secures the cylinder head to the engine block
• Compression Seal: Maintains correct sealing of the head gasket
• Thermal Stability: Withstands engine heat cycles and mechanical stress
• Engine Integrity: Ensures proper combustion chamber sealing and pressure control
Cylinder head bolts experience extreme stress from combustion pressure, temperature changes and engine vibration. Over time or after repeated tightening cycles, bolts can stretch or lose their clamping strength. Replacing them during engine repairs helps maintain the correct seal between the head and block, preventing coolant leaks, compression loss or engine overheating.
Consider replacing cylinder head bolts when:
• Rebuilding or repairing the engine
• Replacing the head gasket
• Engine overheating or compression loss occurs
• The original bolts have been previously torqued or stretched
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610418059
The product you are viewing cross references to these numbers
Cylinder head bolts are essential structural fasteners used in modern engines to clamp the cylinder head, head gasket and engine block together. The OE Match bolt is the long version used in Porsche M96 and M97 engines found in various Boxster, Cayman and 911 models.
Sold individually, 24 bolts required per engine.
Fits:
Porsche 986 Boxster 2.7L / S 3.4L 2003 - 2004
Porsche 987.1 Boxster 2005 - 2008
Porsche 987C.1 Cayman 2005 - 5008
Porsche 996 C2 / C4 / C4S 2002 - 2005
Porsche 997.1 Carrera 2005 - 2008
Diagram ref no 20.
The cylinder head bolt applies the precise clamping force needed to hold the cylinder head against the engine block while compressing the head gasket. This ensures a sealed combustion chamber and prevents coolant or oil leakage. Correctly functioning head bolts are critical to maintaining engine compression, cooling efficiency and overall engine reliability.
Function
• Engine Assembly Fastening: Secures the cylinder head to the engine block
• Compression Seal: Maintains correct sealing of the head gasket
• Thermal Stability: Withstands engine heat cycles and mechanical stress
• Engine Integrity: Ensures proper combustion chamber sealing and pressure control
Cylinder head bolts experience extreme stress from combustion pressure, temperature changes and engine vibration. Over time or after repeated tightening cycles, bolts can stretch or lose their clamping strength. Replacing them during engine repairs helps maintain the correct seal between the head and block, preventing coolant leaks, compression loss or engine overheating.
Consider replacing cylinder head bolts when:
• Rebuilding or repairing the engine
• Replacing the head gasket
• Engine overheating or compression loss occurs
• The original bolts have been previously torqued or stretched
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610418059
99610418056
99610418057
99610418058
99610418059
The product you are viewing cross references to these numbers
Price: €7.08
In stock