TRW Engine 11964 Engine Exhaust Valve

TRW Engine Exhaust Valve 11964

TRW Engine 11964 is a bi-metal engine exhaust valve built for BMW applications that require a 45° valve seat angle and a 6 mm stem diameter. With a hardened valve stem tip and a 30.5 mm valve head diameter, this exhaust valve is specified for precise sealing and dependable valve train service in a range of BMW inline engine platforms.

• Engine exhaust valve for BMW valve train service
• Bi-metal construction for durability in high-heat exhaust operation
• Valve head diameter: 30.5 mm
• Valve stem diameter: 6 mm
• Length: 105.7 mm
• Valve seat angle: 45°
• Hardened valve stem tip for added wear resistance

Detailed Product Overview

This TRW Engine exhaust valve, part number 11964, is engineered around the listed dimensions to support proper combustion sealing and exhaust flow control. The bi-metal design combines strength and heat resistance, while the hardened stem tip helps the valve withstand repeated contact in the valve train. For BMW 525i, 325i, 330i, X5, Z4, and related models, correct valve geometry is critical, and this part number 11964 is specified with the measurements needed for accurate service work.

This part cross-references Dixie Electric Ltd 12824 for the same application.

Vehicle Fitment

• Fits 2019 BMW X3, N/A. Notes: Valve seat angle 45°.
• Fits 2017 BMW X3, N/A. Notes: Valve seat angle 45°.
• Fits 2004-2006 BMW X3, N/A. Notes: Valve seat angle 45°.
• Fits 2008-2009 BMW 525i, N/A. Notes: Valve seat angle 45°.
• Fits 2001-2005 BMW 525i, N/A. Notes: Valve seat angle 45°.
• Fits 1995 BMW 525i, N/A. Notes: Valve seat angle 45°.
• Fits 2001-2006 BMW 325Ci, N/A. Notes: Valve seat angle 45°.
• Fits 2001-2006 BMW 330Ci, N/A. Notes: Valve seat angle 45°.
• Fits 2001-2006 BMW 330xi, N/A. Notes: Valve seat angle 45°.
• Fits 2001-2006 BMW X5, N/A. Notes: Valve seat angle 45°.
• Fits 2003-2006 BMW Z4, N/A. Notes: Valve seat angle 45°.
• Fits 2001-2005 BMW 325i, N/A. Notes: Valve seat angle 45°.
• Fits 2001-2005 BMW 325xi, N/A. Notes: Valve seat angle 45°.
• Fits 2001-2005 BMW 330i, N/A. Notes: Valve seat angle 45°.
• Fits 2001-2003 BMW 530i, N/A. Notes: Valve seat angle 45°.
• Fits 1996-2002 BMW Z3, N/A. Notes: Valve seat angle 45°.
• Fits 1997-2001 BMW 323i, N/A. Notes: Valve seat angle 45°.
• Fits 2000 BMW 323Ci, N/A. Notes: Valve seat angle 45°.
• Fits 1999-2000 BMW 323ti, N/A. Notes: Valve seat angle 45°.
• Fits 2000 BMW 328Ci, N/A. Notes: Valve seat angle 45°.
• Fits 1996-2000 BMW 328i, N/A. Notes: Valve seat angle 45°.
• Fits 1996-2000 BMW 528i, N/A. Notes: Valve seat angle 45°.
• Fits 1991-1999 BMW 318i, N/A. Notes: Valve seat angle 45°.
• Fits 1991-1999 BMW 318is, N/A. Notes: Valve seat angle 45°.
• Fits 1995-1999 BMW 318ti, N/A. Notes: Valve seat angle 45°.
• Fits 1998-1999 BMW 323is, N/A. Notes: Valve seat angle 45°.
• Fits 1996-1999 BMW 328is, N/A. Notes: Valve seat angle 45°.

Common Service Uses

• Replacing a worn or burned exhaust valve
• Restoring proper cylinder sealing on BMW engines
• Addressing low compression caused by valve wear
• Correcting exhaust valve seating issues during engine rebuilds
• Supporting repair work after valve stem tip wear or impact damage

Installation Notes

Verify valve head diameter, stem diameter, overall length, and seat angle before installation. Match the 45° seat angle and 6 mm stem specification to the cylinder head and related valve train components. Professional cylinder head service, including inspection of guides, seats, and mating surfaces, is recommended for proper fit and sealing.

Quality Assurance

TRW Engine manufactures this exhaust valve with bi-metal construction and a hardened valve stem tip to support consistent valve train service in BMW applications. Part number 11964 is built to the listed dimensional specifications for accurate replacement work.