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 taken from the 2010 Subaru WRX STi EJ257. The Nitride treatment makes the crank's surface harder. This helps stop scoring that can happen when a piece of metal gets stuck between the bearing and the crank. By boosting the surface hardness, any material trapped between the surfaces gets ground down and filtered out through the oil, which might prevent bearing failure. Remember, the actual product might look different from the picture. Subaru of America only warrants parts installed on a car with a matching VIN and installed by a CERTIFIED Subaru Dealership. For example, if you install an STi block in a WRX at a non - certified place, don't expect a warranty claim if it fails. Use your best judgment.

Using this Subaru crankshaft is straightforward. First, make sure you're working on a car with a matching VIN as specified by Subaru. It's highly recommended to have it installed by a CERTIFIED Subaru Dealership to keep the warranty valid. When using the car, pay attention to how it runs. If you notice any strange noises or vibrations, it could be a sign of a problem. For maintenance, follow Subaru's regular oil change schedule. The oil helps filter out any debris that might get caught between the crankshaft and the bearings. Check the oil level frequently and make sure it's clean. Also, keep an eye on the overall performance of your vehicle. If you take these steps, your new crankshaft should serve you well for a long time.