Original BMW Rocker Arm Shaft Snap Ring for BMW M10 and M30 Engines: 2002, 3.0CS, 5, 6, and 7 Series (1967–1993)

Every rocker arm shaft in a BMW M10 or M30 head relies on small retainers like this Original BMW rocker shaft snap ring, which locates the rocker arms along the shaft in cars from the 2002 and Bavaria through the 3.0CS and the 5, 6, and 7 Series. BMW calls the part a spring washer. It is the replacement snap ring for the rocker arm shaft. It weighs 1 g, entered production in January 1968, and is priced each and sold individually.

Original BMW Parts carry a 24-month parts warranty.

The same retainer serves both of BMW's long-running overhead-cam families, the four-cylinder M10 and the six-cylinder M30. That covers the 114 and Neue Klasse cars, the E3 sedans, the E9 coupes, the E21 and E30 3 Series, the E12, E28, and E34 5 Series, the E24 6 Series, and the E23 and E32 7 Series. One part number across all of those engines makes ordering simple for anyone rebuilding more than one head.

Technical Details

• Manufacturer: BMW
• Part number: 11-33-0-634-135
• BMW part name: spring washer
• Function: rocker arm shaft retainer
• Weight: 1 g (0.04 oz)
• Production start: January 1968
• Engines: M10 and M30
• Priced each, sold individually
• Warranty: 24 months on Original BMW Parts

Common Questions

How many do I need?
The ring is sold individually.

Can I reuse the old rings?
They are always replaced during an engine rebuild with new rocker arms.

Fitment & Compatibility

Use the fitment table below to confirm year, make, model, submodel, and any notes tied to your exact vehicle. Pay close attention to engine, chassis, position, and option-specific details before ordering. With over 20 years of parts and fitment experience, PMB Performance can match this to your VIN.