Original BMW Connecting Rod Bolt for BMW E9x M3, E60 M5, and E63/E64 M6 S65 and S85 (2006–2013)

Built for the S65 V8 and S85 V10, Original BMW part 11-24-7-834-522 is the connecting rod bolt that clamps the lower bearing cap to the rod body in the E9x M3, E60 M5, and E63/E64 M6. Each bolt is a torque-to-yield fastener, which means it stretches permanently during tightening and cannot be trusted a second time. Rebuilds and rod bearing services on these engines therefore require a new bolt in every position. BMW production of this number started in September 2004. Each bolt weighs 28 g.

Original BMW Parts carry a 24-month parts warranty.

A connecting rod bolt carries the full reciprocating load of the piston and rod at the big end, so cap clamping force matters on high-revving engines like these. BMW uses this single bolt number across both the S65 and S85, so M3 and M5/M6 owners order the same part. The bolt is sold individually, so order the quantity your rod set needs.

Technical Details

• Manufacturer: BMW
• Part number: 11-24-7-834-522
• BMW name: connecting rod bolt
• Type: torque-to-yield, one-time use
• Weight: 28 g (0.99 oz)
• Production start: September 2004
• Engines: S65 and S85
• Sold individually
• Made in Germany
• Warranty: 24-month parts warranty

Installation & Tuning Notes

Wash every new bolt in oil before installation. The sequence runs three times: jointing torque 6 Nm, setting torque 20 Nm, then an additional 130 degrees of rotation. Release the bolts after the first and second passes, and leave them tightened after the third.

Common Questions

Do I need new rod bolts for an S65 or S85 rod bearing service?
Yes. These are torque-to-yield fasteners, and replacement is required whenever the rod caps come off.

Is the S65 bolt different from the S85 bolt?
No. BMW uses this same number on the M3 S65 and the M5 and M6 S85.

PMB ships Original BMW S65 and S85 internal hardware to shops and home builders alike.

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.