Original BMW Outer Valve Spring 30.2 mm for BMW 325, 325e, 325es, 325i, 325is, 325iX, 525i, and 528e M20 (1986–1993)

Original BMW valve spring 11-34-1-706-583 is the 30.2 mm outer spring that closes both the intake and exhaust valves on the M20 six-cylinder in the E30 3 Series and E28/E34 5 Series models covered in the fitment section below. BMW specifies a diameter of 30.2 mm and a weight of about 46 g, and production began in September 1985. On this engine each valve runs a pair of springs, and this is the wider of the two, fitted outside the narrower inner spring. A valve spring returns the valve to its seat after the cam opens it, which lets the valve seal the cylinder during combustion. The part is made in Germany.

Original BMW Parts carry a 24-month parts warranty.

Because this spring serves both intake and exhaust valves, one number covers every outer position on the head. The narrower inner spring is a separate part, so check which one you need before ordering. BMW applies this outer spring across the M20 family, including the E30 325e and 325es, the 325i, 325is, and four-wheel-drive 325iX, the E28 528e, and the early E34 525i. Like valves and valve seals, springs are wear items in the cylinder head. It is sold individually, so count one spring for every valve you are rebuilding.

Technical Details

• Manufacturer: BMW (Genuine)
• Part number: 11-34-1-706-583
• BMW part name: Valve spring
• Position: outer spring, intake and exhaust
• Diameter: 30.2 mm
• Weight: approximately 46 g (0.1 lb)
• Production start: September 1985
• Engine: M20
• Made in Germany
• Sold individually
• Warranty: 24-month parts warranty on Original BMW Parts

Common Questions

Is this spring for intake or exhaust valves?
Both. BMW uses this same spring on intake and exhaust valves on the M20.

Is this the inner or outer spring?
It is the outer spring, the wider of the two at 30.2 mm.

Does it fit a 1991 525i?
No. Store fitment for the 525i ends with 1990 M20 cars.

PMB supports M20 head rebuilds with Genuine BMW valve train parts.

Fitment & Compatibility

Use the table below to verify the year and submodel for your build. With over 20 years of parts and fitment experience, PMB Performance can match this to your VIN.