Subaru OEM EJ257 Nitride Treated Crankshaft Subaru STI 2004-2021 / WRX 2006-2014 | 12200AA430

Part #: 12200AA430. This brand - new nitride - treated crankshaft comes straight from Subaru. It's from the 2010 Subaru WRX STi EJ257. Nitride treatment hardens the crank's surface, preventing scoring from metal pieces between the bearing and the crank. If any material gets caught, it'll be ground down and filtered through the oil, potentially avoiding bearing failure. Subaru of America only warrants parts installed on a car with a matching VIN and by a certified Subaru dealership. Note: Actual product may vary from the picture.

Using this crankshaft is straightforward. Just have it installed by a certified Subaru dealership to ensure the warranty. When it comes to maintenance, regularly check the oil. The nitride treatment helps filter out debris, but clean oil is still crucial for smooth operation. Be aware that Subaru of America only offers a warranty if the part's VIN matches your car's and it's installed by a certified dealer. So, choose your installation location carefully. If you're not sure, consult with a Subaru expert.