OEM Nut (M10), Lock, Exhaust: DSM/EVO

Genuine OEM part.

This is a special OEM nut designed to withstand the extreme heat and heat cycling of a turbocharged exhaust.  It has a special locking design to ensure it does not come loose with repeated heat cycling and vibrations.  This is a 10mm nut used on 7-bolt DSM and all EVO (1-10) exhaust manifold to head studs (MD146938). It is also used on the O2 housing of DSMs (1990-99).

Specs: M10x1.25, peened lock nut.

Sold individually.