Original BMW Valve Spring for BMW 1600, 2002, 2800CS, 3.0CS, Bavaria, 3 Series, 5 Series, 6 Series, and 7 Series (1967–1987)

For the M10 four-cylinder and M30 six-cylinder engines in classic BMWs from the 1600 and 2002 through the E23 7 Series, the Original BMW valve spring 11-34-1-276-504 closes the valve and holds it against its seat between cam lobes. BMW gives its size as 44.8 mm long with a 32.1 mm diameter, and each spring weighs 54 g. This number has been in production since April 1981. It took over from 11-34-1-278-066, and BMW rates the two as bilaterally exchangeable, which means either number can be fitted in place of the other.

Original BMW Parts carry a 24-month parts warranty.

Every valve in the head has its own spring, and that spring has to keep the valve following the camshaft as engine speed rises. A tired spring lets the valve train lose control at high rpm. One spring serves the 1967 BMW 1600 through the 1987 735i, which simplifies a head rebuild across the M10 and M30 families. The part also cross-references to 11-34-1-258-027 and 07-30-6-019-001. Those numbers can turn up in older parts books or on a supplier's box when you compare the springs you are taking out.

Technical Details

• Manufacturer: BMW (Original BMW Part)
• Part number: 11-34-1-276-504
• BMW part name: Valve spring
• Dimensions: length 44.8 mm, diameter 32.1 mm
• Weight: 54 g (0.1 lb)
• Production start: April 1981
• Bilaterally exchangeable with 11-34-1-278-066
• Cross-references: 11-34-1-258-027, 07-30-6-019-001
• Sold individually
• Warranty: 24 months

Common Questions

Will this replace a 11-34-1-278-066 spring?
Yes. BMW rates the two numbers as interchangeable in both directions.

Is it the same spring for M10 and M30 engines?
Yes. BMW uses this one spring on both families in the cars above.

How is it sold?
Each spring is priced and sold individually, so order the full count your head needs.

PMB can help you build out the rest of the head job.

Fitment & Compatibility

Check the table below for the exact year, model, submodel, and any listed notes. PMB Performance has spent over 20 years matching parts to vehicles and can verify this against your VIN.