TRW Automotive 928-105-410-04 Exhaust Valve for Porsche 924S and 944

The TRW Automotive 928-105-410-04 is a precision-engineered exhaust valve designed as a direct replacement component for cylinder head rebuilds and valve train service. This OE-quality valve is manufactured by TRW Engine Components, a trusted name in automotive valve train technology and a brand of ZF Friedrichshafen AG.

Key Features:

• Manufactured from high-quality chrome-manganese-nickel steel for superior durability and heat resistance
• Precision-machined valve seat surface for optimal sealing and combustion efficiency
• 45-degree valve seat angle for proper valve-to-seat contact
• Designed to meet or exceed OEM specifications
• TRW manufacturer part number 30002
• Cross-references to Porsche OEM part number 928.105.410.04 / 92810541004

This exhaust valve is a critical component in any cylinder head rebuild or valve service. When valves become worn, pitted, or damaged, they can lead to poor compression, reduced engine performance, and increased oil consumption. Installing new exhaust valves ensures proper sealing, optimal combustion chamber efficiency, and reliable engine operation. Each vehicle requires multiple valves; sold individually to allow for flexible ordering based on your specific repair needs.