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Engine Valves / Guides / Springs
By OE Match
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT2 RS 2011-13
The OE Match exhaust valve set includes 12 precision-engineered exhaust valves designed for Porsche 996 Turbo, 996 GT2, 997 Turbo and 997 GT2 models. These valves are installed in the cylinder heads and control the release of exhaust gases from the combustion chambers during the engine’s exhaust cycle.
SET OF 12 exhaust valves
Fits:
Porsche 996 Turbo / GT2 2001 - 2005
Porsche 997.1 Turbo / GT2 3.6L 2007 - 2009
Porsche 997.2 GT2 RS 3.6L 2011
Diagram ref no 3.
Exhaust valves are a critical component of the engine valve train. Each valve sits in the cylinder head and is operated by the camshaft through the valve train mechanism. During the combustion cycle, the valve opens to allow burnt gases to exit the cylinder and then closes to seal the chamber for the next intake and compression phases.
The OE Match set contains 12 exhaust valves, which corresponds to the number required for a complete flat-six turbo engine used in Porsche 996 and 997 Turbo models.
These valves are engineered to withstand the high temperatures and pressures generated by turbocharged combustion while maintaining precise sealing and smooth valve train operation.
The exhaust valves open during the exhaust stroke to release burnt gases from the combustion chamber and close to maintain compression during the compression and power strokes. This process ensures efficient combustion and optimal engine performance.
Replacing worn valves during engine servicing or rebuild ensures consistent sealing across all cylinders and reliable engine operation.
Exhaust valves operate under extreme temperatures and constant mechanical stress. Over time they can develop wear, carbon buildup or valve face damage, which may cause compression loss or reduced engine efficiency. Replacing the valves as a full set ensures balanced performance across all cylinders and helps maintain reliable engine operation.
Consider replacing the exhaust valves when:
• Performing a cylinder head rebuild
• Engine compression is low or uneven
• Valves show burning, pitting or excessive wear
• During a major engine overhaul or restoration
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610511372
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT2 RS 2011-13
The OE Match exhaust valve is a precision engine component used in the cylinder heads of Porsche 911 Turbo and GT2 models. It is responsible for controlling the release of exhaust gases from the combustion chamber during the engine’s exhaust cycle.
Sold individually, 12 exhaust valves required per engine (one per cylinder).
Fits:
Porsche 996 Turbo / GT2 2001 - 2005
Porsche 997.1 Turbo / GT2 3.6L 2007 - 2009
Porsche 997.2 GT2 RS 3.6L 2011
Diagram ref no 3.
The exhaust valve is a key element of the engine valve train system. It sits inside the cylinder head and works with the camshaft, valve springs and lifters to regulate the flow of gases in and out of the engine.
This OE Match version follows the original Porsche design, providing the correct stem diameter, valve head geometry and sealing surface required for proper installation and reliable performance.
During engine operation, the exhaust valve opens to allow burnt gases to exit the combustion chamber and enter the exhaust manifold. It then closes to seal the cylinder during the compression and power strokes.
Properly functioning exhaust valves are essential for maintaining engine compression, combustion efficiency and turbocharger performance.
Function
• Exhaust Gas Control: Releases combustion gases from the cylinder
• Combustion Sealing: Closes to maintain compression during the power cycle
• Engine Performance: Supports efficient airflow and combustion
• Valve Train Operation: Works with camshaft, lifters and valve springs
Exhaust valves operate under extremely high heat and mechanical stress. Over time they can develop wear, carbon buildup, or valve face damage, which may lead to compression loss, reduced engine performance or valve train noise. Replacing worn valves during engine servicing helps maintain proper sealing, stable combustion and reliable turbocharged performance.
Consider replacing the exhaust valve when:
• Performing a cylinder head rebuild
• Engine compression is low or uneven
• Valves show burning, pitting or wear
• During major engine overhaul or restoration
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610511372
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT2 RS 2011-13

Fits:
Porsche 996 Turbo/GT2 2001-05
Porsche 997.1 Turbo / GT2 3.6L 2007-09
Porsche 997.2 GT2 RS 3.6L 2011
Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610511172
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 955 Cayenne Turbo 4.5L 2003-06
- Porsche 955 Cayenne Turbo S 4.5L 2006>>

Collet washer can fit both inlet and exhaust. Please check below
Fits:
Porsche 996 turbo - 2001 to 2005 (Inlet and Exhaust)
Porsche 997.1 turbo - 2007 to 2008 (Inlet and Exhaust)
Porsche 997.2 GT2 RS - 2011 to 2012 (Inlet and Exhaust)
Porsche 955 Cayenne turbo - 2003 to 2006 (Exhaust)
Click 'Zoom in' for large parts diagram.
Diagram ref no 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610512173
The product you are viewing cross references to these numbers
OEMatch Engine Valves / Guides / Springs — Durability, Sealing, Performance
OEMatch supplies a selection of engine valves, valve guides and valve springs for Porsche models. These cylinder head components control air intake, exhaust flow and valve timing. Installing correct parts helps restore compression, reduce oil consumption and maintain consistent combustion across classic air-cooled flat-sixes and modern water-cooled engines.
Available Types
- Inlet (intake) valves
- Exhaust valves
- Valve guides
- Valve springs and retainers
- Valve seats and shims
Understanding OEMatch Engine Valves / Guides / Springs
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original engine valves / guides / springs.
OE (Original Equipment) refers to parts matching original specifications for the engine valves / guides / springs and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM engine valves / guides / springs engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
Valves, guides and springs together control airflow into and out of the combustion chamber, maintain valve alignment and close valves with the correct force. Worn or incorrectly matched components affect sealing, timing and engine smoothness; correct selection is important for reliable operation and long-term durability. OEMatch catalogues a wide range of Porsche items, with several thousand part numbers and extensive cross-references to support rebuilds and restorations.
Benefits Include
- Restores correct airflow and combustion sealing for improved compression
- Reduces oil consumption and exhaust smoke by renewing worn guides and seals
- Eliminates valve float and restores high-RPM stability with appropriate spring rates
Why Engine Valves / Guides / Springs Wear and Fail
- Valve seat wear or pitting that reduces sealing and compression
- Burnt or bent valves from overheating or incorrect timing
- Worn valve guides causing increased clearance, oil consumption and smoke
- Fatigued or weakened valve springs leading to valve float at high engine speeds
- Corrosion and carbon build-up from poor fuel quality or many short trips
The Importance of Replacing with OEMatch Engine Valves / Guides / Springs
Timely replacement of valves, guides and springs preserves engine compression, throttle response and fuel efficiency. Renewing these components during a head rebuild or scheduled overhaul prevents secondary damage to pistons and seats, helps maintain emissions performance and keeps the engine running smoothly under load. Choosing parts selected for Porsche applications supports correct clearances, spring rates and material properties needed across different model years and engine types.
Advantages
- Direct-fit alternatives engineered to match original dimensions and tolerances where applicable
- Options suitable for restorations, routine overhauls and performance maintenance
- Components chosen for heat resistance and fatigue life to suit Porsche cylinder head conditions