Febi 05174 Engine Rocker Arm Adjusting Washer

BMW Rocker Arm Adjusting Washer

Febi 05174 is an engine rocker arm adjusting washer with a 6 mm inner diameter and 16 mm outer diameter. It is a direct-fit hardware component for BMW valvetrain service, including BMW 535i, 735i, 325i, and related models that use rocker arm adjustment hardware.

Key Features

• Engine rocker arm adjusting washer for BMW valvetrain applications
• 6 mm inner diameter for precise shaft or fastener fitment
• 16 mm outer diameter for stable contact area
• Febi part number 05174 for easy identification
• Cross-references BMW OE part numbers 11 33 0 634 115 and 11 33 1 744 354 for the same application

Detailed Description

Febi 05174 is a rocker arm adjusting washer used in BMW engine hardware service where accurate valvetrain adjustment is required. The washer’s 6 mm inner diameter and 16 mm outer diameter provide the dimensional consistency needed for rocker arm adjustment points, helping maintain proper spacing and contact in the assembly. This part number 05174 is listed for a wide range of classic BMW inline-six applications, including BMW 535i, BMW 735i, BMW 735iL, BMW 325i, BMW 525i, BMW 635CSi, BMW 535is, BMW 325e, BMW 318i, and BMW 528i.

What It Is Used For

• Restoring rocker arm adjustment hardware during engine service
• Replacing worn or flattened valvetrain washers
• Correcting valve lash adjustment issues caused by damaged hardware
• Supporting consistent rocker arm contact geometry in BMW engines
• Addressing noise or irregular adjustment readings linked to worn washer surfaces

Installation Notes and Tips

Verify the washer dimensions against the original hardware before installation. Use the listed BMW fitment by year and model, and confirm rocker arm application details during engine teardown. Clean mating surfaces and inspect the rocker arm, adjuster, and related valvetrain components for wear before reassembly. Febi 05174 should be installed as part of a careful engine hardware service procedure to maintain correct adjustment settings.

Quality Assurance

Febi is an established aftermarket brand known for OE-style replacement hardware. This part is identified by Febi 05174 and is cross-referenced to BMW OE numbers 11 33 0 634 115 and 11 33 1 744 354 for the same application.

Compatible Vehicles

• Fits 1985-1993 BMW 535i, N/A, additional information: for rocker arm
• Fits 1985-1992 BMW 735i, N/A, additional information: for rocker arm
• Fits 1988-1992 BMW 735iL, N/A, additional information: for rocker arm
• Fits 1987-1990 BMW 325i, N/A, additional information: for rocker arm
• Fits 1990 BMW 525i, N/A, additional information: for rocker arm
• Fits 1985-1989 BMW 635CSi, N/A, additional information: for rocker arm
• Fits 1988 BMW 535is, N/A, additional information: for rocker arm
• Fits 1985-1986 BMW 325e, N/A, additional information: for rocker arm
• Fits 1985 BMW 318i, N/A, additional information: for rocker arm
• Fits 1979-1981 BMW 528i, N/A, additional information: for rocker arm