Original BMW M12x1.5x28 Flywheel Bolt for BMW 2002, 3 Series, 5 Series, 7 Series, X5, and More (1968–2024)

BMW's M12x1.5x28 hex bolt is the Original BMW flywheel bolt shared by decades of BMW engines, from the M10 four-cylinder in the 2002 to the N63 V8 in the 7 Series and X5. BMW calls it simply a hex bolt. The thread is M12 with a 1.5 mm pitch, and the shank is 28 mm long. Each bolt weighs 34 grams and is sold individually. Flywheel bolts clamp the flywheel to the rear flange of the crankshaft, so they carry engine torque into the clutch and transmission.

Original BMW Parts carry a 24-month parts warranty.

This number entered production in September 2006 and replaced the earlier 11-22-1-717-840. BMW rates the change as exchangeable retrospectively, which means the newer bolt also serves cars that were built with the old number. Other numbers that cross to this bolt include 11-22-0-150-298, 11-22-0-616-142, and 11-22-1-271-292. If an older invoice or parts book shows any of those, this is the current replacement.

Technical Details

• Manufacturer: BMW (Original BMW part)
• Part number: 11-22-7-805-885
• BMW part name: hex bolt
• Thread and length: M12x1.5x28
• Weight: 34 g (1.2 oz)
• Production start: September 2006
• Supersedes: 11-22-1-717-840, exchangeable retrospectively
• Sold as: one bolt
• Warranty: 24-month Original BMW Parts warranty

Common Questions

Is this the same bolt as 11-22-1-717-840?
Yes. BMW superseded 11-22-1-717-840 with this number and allows it on cars built with the older bolt.

What size is it?
M12x1.5 thread, 28 mm long, at 34 grams per bolt.

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. Send your VIN and PMB Performance will confirm the fit, drawing on more than 20 years in the trade.