OEM 2RZ/3RZ/5VZExhaust Manifold Stud (Each)
OEM P/N: 90116-10163 When installing new aftermarket headers, new hardware should be used.
An even clamping force is required to keep the header tight against the
head in order to seal the exhaust gasket properly. The studs on your
truck may be 20 to 30 years old, and we can tell you from experience
that it is cheaper and easier to replace studs then it is to remove
*This stud is OEM for 2RZ/3RZ/5VZ but it would work with many different Toyota models. This stud is a M10 X 1.25 X 50mm
The OEM Nut for this stud can be found here
OEM 2RZ/3RZ/5VZ Exhaust Manifold Mechanical Lock Nut (Each)
4 cylinder engines (20R,22R,22RE,2RZ,3RZ) use a total of 8 exhaust studs and 8 nuts, 6 cylinder engines (3VZ, 5VZ) use 12 exhaust studs and 12 nuts.
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