TRW Engine MK-9H Engine Valve Spring Retainer

Reliable Engine Valve Spring Retainer for Porsche and Volkswagen

The TRW Engine MK-9H engine valve spring retainer is designed to meet the specific needs of Porsche and Volkswagen vehicles, including models like the 911, 924, 944, Beetle, and Vanagon. Engineered with precision, this retainer features three notches or holes and fits valve stems with a 9 mm diameter, ensuring proper valve spring retention and engine performance.

• Compatible with Porsche 911, 924, 944 and Volkswagen Beetle, Vanagon
• Engine valve spring retainer with 3 notches/holes for secure fitment
• Designed for valve stem diameter of 9 mm
• Part number MK-9H for easy identification and replacement
• Manufactured by TRW Engine for consistent quality

Technical Details and Specifications

The MK-9H valve spring retainer is crafted to fit valve stems measuring 9 millimeters in diameter, a common specification for various Porsche and Volkswagen engines. The three notches or holes in the retainer provide a secure locking mechanism for the valve springs, helping maintain proper valve timing and engine efficiency. This part is essential for maintaining the integrity of the valve train assembly, especially in performance and classic models such as the Porsche 911 and Volkswagen Beetle.

Compatible Vehicles and Applications

This engine valve spring retainer is compatible with a range of Porsche and Volkswagen models, including:

• Porsche 911, 924, 944
• Volkswagen Beetle
• Volkswagen Vanagon

It is designed specifically for engines requiring a valve stem diameter of 9 mm and a retainer with three notches or holes, making it suitable for maintenance and repair tasks involving valve spring retention.

Common Issues Addressed by the MK-9H Valve Spring Retainer

• Valve spring instability causing engine misfires or noise
• Wear or damage to original valve spring retainers
• Valve train component failure due to improper retention
• Maintaining valve timing accuracy in Porsche and Volkswagen engines
• Replacement during engine rebuilds or performance upgrades

Installation Notes and Tips

When installing the TRW Engine MK-9H valve spring retainer, ensure the valve stem diameter matches the 9 mm specification for proper fit. The three notches or holes must align correctly with the valve spring locks to secure the assembly. It is recommended to inspect related valve train components for wear during installation and replace any damaged parts to maintain engine reliability.

Quality Assurance and Warranty

TRW Engine manufactures the MK-9H valve spring retainer to meet industry standards for durability and performance. While specific warranty details are not provided, TRW Engine parts are known for consistent quality and reliability in automotive applications. Using genuine TRW components helps ensure proper engine function and longevity.