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Valve stem seals. Porsche 993 1994-98 - 99310411102
99310411102
Vehicle Group
- 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
Information
Valve stem seals for inlet and exhaust valves
12 per engine.
Fits:
Porsche 993 1994-98
Click 'Zoom in' for large parts diagram.
Diagram Ref no 8.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99310411102
The product you are viewing cross references to these numbers
12 per engine.
Fits:
Porsche 993 1994-98
Click 'Zoom in' for large parts diagram.
Diagram Ref no 8.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99310411102
99310411101
99310411102
12-28590-01
122859001
The product you are viewing cross references to these numbers
Prices from: €3.51
Related products
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Information
Engine Cylinder Head Exhaust Valve.
Restore dependable engine performance with this OE Match Engine Cylinder Head Exhaust Valve, manufactured as a direct replacement. Produced to OE-style specifications, this exhaust valve is designed to control the release of combustion gases from the cylinder, maintaining efficient engine operation, correct compression, and reliable valve train performance.
Fits:
Diagram Ref No 11
Exhaust valves operate under extreme temperatures and repeated combustion cycles, making them one of the most highly stressed components within the engine. Over time, heat, carbon deposits, corrosion, or insufficient lubrication can cause the valve face, stem, or seating surface to wear or burn, leading to poor sealing and reduced engine efficiency. Replacing worn or damaged exhaust valves restores proper combustion sealing and exhaust gas flow, making this OE Match component ideal for routine maintenance, engine repairs, rebuilds, and Porsche restoration projects.
What This Product Does:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
61610540650
The product you are viewing cross references to these numbers
Restore dependable engine performance with this OE Match Engine Cylinder Head Exhaust Valve, manufactured as a direct replacement. Produced to OE-style specifications, this exhaust valve is designed to control the release of combustion gases from the cylinder, maintaining efficient engine operation, correct compression, and reliable valve train performance.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Diagram Ref No 11
Exhaust valves operate under extreme temperatures and repeated combustion cycles, making them one of the most highly stressed components within the engine. Over time, heat, carbon deposits, corrosion, or insufficient lubrication can cause the valve face, stem, or seating surface to wear or burn, leading to poor sealing and reduced engine efficiency. Replacing worn or damaged exhaust valves restores proper combustion sealing and exhaust gas flow, making this OE Match component ideal for routine maintenance, engine repairs, rebuilds, and Porsche restoration projects.
What This Product Does:
- Controls the release of exhaust gases from the combustion chamber.
- Maintains correct cylinder sealing during the combustion cycle.
- Supports efficient engine performance and combustion.
- Helps maintain correct compression and valve timing.
- Restores proper exhaust gas flow.
- Replaces worn, burnt, or damaged original exhaust valves.
- Provides an OE-style fit and dependable quality.
Symptoms Of Wear Or Failure:
- Loss of engine power.
- Reduced engine compression.
- Rough or uneven idle.
- Engine misfires.
- Excessive valve train noise.
- Burnt, pitted, or cracked valve faces.
- Increased exhaust emissions.
- Excessive heat damage or carbon build-up on the valve.
Why Replacement Matters:
- The exhaust valve plays a critical role in allowing spent combustion gases to exit the engine while maintaining an effective seal during compression and combustion. A worn, burnt, or damaged exhaust valve can reduce engine performance, lower compression, increase fuel consumption, and eventually cause serious engine damage if left unresolved.
- Replacing the exhaust valve restores efficient exhaust gas flow, reliable cylinder sealing, and smooth engine operation while helping to protect other valve train components from unnecessary wear. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match engine cylinder head exhaust valve provides the correct fit, dependable quality, and long-lasting durability, making it an ideal choice for Porsche maintenance, engine rebuilds, repairs, and restoration projects.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
61610540650
61610540650
3398.239
61610540601
864408-4
The product you are viewing cross references to these numbers
Price: €39.27
In stock
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Information
Engine Cylinder Head Intake Valve.
Diagram Ref No 10
Operating under constant heat, pressure, and repeated opening and closing cycles, intake valves are subject to gradual wear over time. Carbon build-up, stem wear, valve face erosion, or physical damage can prevent the valve from sealing correctly, reducing engine efficiency and performance. Replacing worn or damaged intake valves restores proper cylinder sealing and airflow, making this OE Match component an excellent choice for routine maintenance, engine repairs, rebuilds, and Porsche restoration projects.
What This Product Does:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
61610540200
The product you are viewing cross references to these numbers
Restore reliable engine performance with this OE Match Engine Cylinder Head Intake Valve, manufactured as a direct replacement. Produced to OE-style specifications, this intake valve precisely controls the flow of the air and fuel mixture into the combustion chamber, ensuring efficient combustion, smooth engine operation, and optimum performance.
Fits:- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Diagram Ref No 10
Operating under constant heat, pressure, and repeated opening and closing cycles, intake valves are subject to gradual wear over time. Carbon build-up, stem wear, valve face erosion, or physical damage can prevent the valve from sealing correctly, reducing engine efficiency and performance. Replacing worn or damaged intake valves restores proper cylinder sealing and airflow, making this OE Match component an excellent choice for routine maintenance, engine repairs, rebuilds, and Porsche restoration projects.
What This Product Does:
- Controls the intake of the air and fuel mixture into the combustion chamber.
- Maintains correct cylinder sealing during the combustion cycle.
- Supports efficient combustion and engine performance.
- Helps deliver smooth power and throttle response.
- Restores correct valve operation during engine rebuilds.
- Replaces worn, burnt, or damaged original intake valves.
- Provides an OE-style fit and dependable quality.
Symptoms Of Wear Or Failure:
- Loss of engine power.
- Rough or uneven idle.
- Reduced engine compression.
- Misfiring cylinders.
- Poor fuel economy.
- Excessive valve train noise.
- Burnt, pitted, or bent valve faces.
- Excessive oil consumption caused by valve-related wear.
Why Replacement Matters:
- The intake valve is a critical component of the engine's valve train, regulating the precise amount of air and fuel entering each cylinder while maintaining an effective seal throughout the combustion cycle. A worn, burnt, or damaged intake valve can reduce compression, lower engine performance, increase fuel consumption, and eventually lead to costly engine damage if left unresolved.
- Replacing the intake valve restores proper airflow, combustion efficiency, and reliable engine performance while helping to protect other valve train components from unnecessary wear. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match engine cylinder head intake valve provides the correct fit, dependable quality, and long-lasting durability, making it an ideal choice for Porsche maintenance, engine rebuilds, repairs, and restoration projects.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
61610540200
61610540200
The product you are viewing cross references to these numbers
Price: €34.51
In stock
Vehicle Group
- Porsche 356A 1955-59
- Porsche 356B 1959-63
Information
Engine intake valve. 4 required, price is for each.
Fits:
Porsche 356A
Porsche 356B
Click 'Zoom in' for large parts diagram.
Diagram ref no 10
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PCG54605203
The product you are viewing cross references to these numbers
Fits:
Porsche 356A
Porsche 356B
Click 'Zoom in' for large parts diagram.
Diagram ref no 10
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PCG54605203
54605203
PCG54605203
The product you are viewing cross references to these numbers
Price: €29.75
In stock