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Fitment 2004-2021 STI

Fitment 2002-2014 WRX


Part# - 12200AA430


Nitride treatment hardens the surface of the crank, which prevents scoring caused by a piece metal getting stuck between the bearing and the crank.

By increasing the hardness of the crankshaft surface, any material which gets caught between the new surfaces is simply ground down and filtered out through the oil, potentially preventing bearing failure.

This is a brand new part, straight from Subaru!

The Subaru Part # for this Nitride Treated Crank is 12200AA430

Subaru OEM EJ257 Nitride Treated Crankshaft Subaru STI 2004-2021 / WRX 2006-2014

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