ACL Main Bearing High Performance Standard Size with Extra Oil Clearance Set, #3 Thrust Bearing Position WRX 2002-2014 / STI 2004-2021 Subaru Turbo Models | 5M8297HX-STD

ACL's main bearings are crafted from a softer metal. This design protects your crank and engine block from wear. A thin oil layer lubricates the connection between the bearings and the crank, enabling the crank to 'float' and significantly cut down on wear. Proper support from main bearings is essential to prevent oscillations and wear that can harm the crankshaft and other components as the engine becomes more unbalanced. Bearings with extra oil clearance can handle the stress of high - horsepower motors better. However, they experience more wear during startup. We strongly suggest that only experienced professionals purchase these. When buying Subaru main bearings, note that they are specific to either a #5 or #3 journal bearing position. The journal bearing position isn't related to the VIN or year. You must know this before buying. Since engine internal components aren't eligible for exchange or return, make sure you pick the right bearings.

How to use: Install these main bearings in your Subaru turbo model (WRX 2002 - 2014 / STI 2004 - 2021) at the correct #3 thrust bearing position as per the engine's requirements. Make sure to clean the crank and engine block before installation. Attention: Only experienced professionals should purchase and install these bearings due to the increased wear during startup and the specific requirements of the journal bearing position. You need to know whether you need #5 or #3 position bearings before buying as they can't be exchanged or returned. Maintenance advice: Regularly check the oil level and quality. Good oil lubrication is crucial for the performance and lifespan of these bearings. If you notice any abnormal noises or vibrations from the engine, have the bearings inspected immediately.