XC3 Engineering BMW M3 E9X E92 Upgraded Propshaft / Driveshaft bolts
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Overview
The XC3 Engineering Upgraded Driveshaft / Propshaft Bolts are designed to replace the factory BMW one-time-use fasteners fitted to the BMW M3 E9X drivetrain.
OEM BMW bolts are supplied in 10.9 tensile grade and are classified as single-use stretch bolts, meaning they are designed to be replaced every time they are removed. Under repeated high-load use, particularly on fast-road or track-driven vehicles, these fasteners can become a reliability concern.
XC3 upgraded bolts move to a 12.9 tensile specification, providing a clear strength increase over the factory hardware. The higher tensile rating offers improved resistance to bolt stretch and fatigue, resulting in greater clamping force retention at critical drivetrain joints.
This upgrade provides a stronger, more robust fastening solution for owners seeking improved durability and confidence in demanding driving conditions.
Replaces BMW part no. 26117526322
Kit Details and Contents:
- 6x Cap Head Screw Bolts
- 12.9 Tensile strength
Fitment:
BMW M3 E9X Chassis