Gearbox silencer block Hexagon-head bolt. Porsche 993 C2

Gearbox silencer block Hexagon-head bolt. M12 x 1.5 x 100.
Engineered to match the original Porsche specification, this high-quality bolt ensures correct fit, strength, and finish for secure attachment of the gearbox silencer block on the Porsche 993 Carrera 2 .
Sold each.

Fits:
Porsche 993 C2 1994-98 MANUAL (Gearbox type G50.20 / G51.21)
Porsche 993 Carrera RS 1995 MANUAL (Gearbox type G50.31 / G50.32 / G50.33)
Porsche 993 C2 1994-98 TIPTRONIC (Gearbox type A50.04 / A50.05)

Diagram Ref No 15.

Bolts used in drivetrain and gearbox assemblies are exposed to continuous vibration, torque stress, and environmental factors such as heat and corrosion. Over time, these conditions can weaken or stretch the bolt, reducing its ability to maintain proper clamping force. Using a degraded or mismatched bolt can cause mounting misalignment, vibration, or even component failure under load.

When to replace:
• During gearbox or silencer block removal, when original bolts show corrosion, wear, or damaged threads.
•  As part of drivetrain servicing or restoration, ensuring all fasteners meet factory torque and material specifications.
•  Whenever hardware is reused or mismatched, to maintain the correct preload and structural integrity of the assembly.

Replacing this hexagon-head bolt guarantees the proper tensile strength, precise thread pitch, and corrosion resistance — restoring safe, vibration-free mounting performance in your Porsche 993 Carrera 2 or related 911 model.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90037808801

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