Original BMW Crankshaft Pulley Bolt M8x16 for BMW 2, 3, 4, and 5 Series, X1, X3, X4, and Z4 (2011–2018)

Part number 11-23-7-564-511 is the Original BMW M8x16 bolt that secures the crankshaft pulley, also called the harmonic balancer, to the crankshaft hub on 2011–2018 BMW 2, 3, 4, and 5 Series, X1, X3, X4, and Z4 models. BMW calls it an ASA bolt and has produced it since January 2006. It weighs 10 g, is made in Poland, and is sold and priced individually. The crankshaft pulley drives the accessory belt, so the bolts holding it carry the load of the alternator, water pump, and other belt-driven parts every time the engine runs.

Original BMW Parts carry a 24-month parts warranty.

BMW uses this one bolt across a wide family of engines, including the N52, N54, N55, N20, and N26, which is why it shows up on everything from an E90 325i to an F26 X4. For the cars in our fitment, the main engines are the N20 four-cylinder in the 228i, 320i, 328i, 428i, 528i, X1 sDrive28i, X3 28i, X4 xDrive28i, and Z4 sDrive28i, plus the N26 versions of the 228i, 328i, and 428i. BMW's data also ties it to the N52N six-cylinder in the X3 xDrive28i. The designation M8x16 gives the bolt size.

Technical Details

• Manufacturer: BMW, sold as an Original BMW Part
• Part number: 11-23-7-564-511
• BMW part name: ASA bolt
• Size: M8x16
• Position: crankshaft pulley to crankshaft hub
• Weight: 10 g (0.35 oz)
• Production start: January 2006
• Made in Poland
• Sold and priced individually
• Warranty: 24-month parts warranty on Original BMW Parts

Common Questions

What size is this bolt?
M8x16.

Is it sold as a set?
No. Each bolt is sold and priced individually, so order the number your pulley uses.

Where is it made?
This bolt is made in Poland.

Fitment & Compatibility

Check the table below for the exact year, model, submodel, and any listed notes. PMB Performance can confirm this against your VIN, backed by more than 20 years of parts and fitment work.