Connection rod nut. Porsche 911 1965-83 / 914  ❭  90110317302

Connection rod nut.
This connecting rod nut is used on the big-end of the connecting rod, clamping the rod cap securely to the rod during engine operation.
12 per engine. Price is for each

Fits:
Porsche 911 1965 - 1983
Porsche 911 (930) Turbo 1975 - 1977
Porsche 914 1970 - 1976

Diagram ref no 21.

Installed on the connecting rod bolts at the big end, this nut provides the required clamp load to keep the rod assembly rigid under combustion forces and inertia at speed. Built to OEM-style dimensions (commonly listed as M10), it supports accurate torqueing and secure retention under high RPM loads and repeated heat cycles - ideal for rebuilds, top-end refreshes, or bottom-end assembly work.

Con-rod fasteners live in one of the harshest areas of the engine. Nuts can be damaged, corroded, or compromised by previous over-torqueing or repeated reuse. Replacing with OE Match hardware helps ensure accurate torque application and dependable clamp load retention - critical for bearing life and engine reliability.

When to replace:
•  During any engine rebuild involving connecting rod removal
•  Nuts show thread damage, rounding, corrosion, or heat marking
•  Evidence of incorrect prior assembly/torque history
•  Preventive replacement on high-mileage or unknown-history engines

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Related, superseded, cross reference or alternative numbers for comparison.

90110317302

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