TRW Engine 11964 Engine Exhaust Valve

Reliable TRW Engine Exhaust Valve for BMW Vehicles

The TRW Engine 11964 exhaust valve is engineered to meet the precise demands of various BMW models, including the 318i, 325i, 330i, and X5. Designed with durable bi-metal materials and a hardened valve stem tip, this valve ensures consistent performance and longevity in your engine's valve train system.

• Length: 105.7 mm for accurate fitment
• Valve head diameter: 30.5 mm for optimal sealing
• Valve seat angle: 45° to match OEM specifications
• Bi-metal construction for enhanced durability
• Hardened valve stem tip to resist wear
• Valve stem diameter: 6 mm for precise operation

Technical Details and Material Specifications

This TRW Engine exhaust valve (part number 11964) features a bi-metal valve seat and valve body, providing a balance of heat resistance and mechanical strength. The valve stem tip is hardened to reduce wear from constant contact with the rocker arm or cam follower. With a valve seat angle of 45 degrees and a valve head diameter of 30.5 mm, this component is designed to maintain proper sealing and combustion efficiency. The 6 mm valve stem diameter and 105.7 mm length ensure compatibility with the valve guides and cylinder head of compatible BMW engines.

Compatible BMW Models and Applications

This exhaust valve is compatible with a range of BMW vehicles, including but not limited to:

• BMW 318i, 318is, 318ti
• BMW 323Ci, 323i, 323is, 323ti
• BMW 325Ci, 325i, 325xi
• BMW 328Ci, 328i, 328is
• BMW 330Ci, 330i, 330xi
• BMW 525i, 528i, 530i
• BMW X3, X5
• BMW Z3, Z4

Common Engine Issues Addressed by This Exhaust Valve

• Valve seat leakage causing loss of compression
• Excessive valve stem wear leading to poor valve movement
• Reduced engine performance due to worn exhaust valves
• Valve head damage affecting combustion efficiency
• Overheating issues related to valve material degradation

Installation Notes and Tips

Ensure the cylinder head and valve guides are inspected and cleaned before installation. Proper valve seat grinding or replacement may be necessary to achieve optimal sealing with the new valve. Use appropriate valve spring compressors and follow manufacturer torque specifications during installation. It is recommended to verify valve stem clearance and seating angles to maintain engine performance and longevity.

Quality Assurance and Warranty Information

TRW Engine exhaust valves are manufactured to meet OEM standards for fit, form, and function. The bi-metal construction and hardened valve stem tip contribute to durability under high-temperature and high-stress conditions. While specific warranty details are not provided, TRW Engine parts typically adhere to industry quality controls to ensure reliable operation in compatible BMW models.