ACL Main Bearing Duraglide 0.75mm Oversized Set, #3 Thrust Bearing Position WRX 2002-2014 / STI 2004-2021 Subaru Turbo Models | 5M8297A-.75

ACL's main bearings are crafted from a softer metal, which safeguards your crank and engine block from wear. A thin oil layer lubricates the bearing - crank connection, enabling the crank to 'float' and minimizing wear. Proper support from these 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 better handle the stress of high - horsepower motors. However, they experience more wear during startup. We suggest that only experienced professionals purchase these bearings. Note: Subaru main bearings are specific to either a #5 or #3 journal bearing position. This position isn't determined by VIN or year, so you must know it before buying. Engine internals aren't eligible for exchange or return, so be certain about your bearing needs.

How to use: Install these main bearings carefully in the correct journal bearing position (#5 or #3) as determined for your Subaru turbo model. Make sure to apply a thin layer of oil on the bearings before installation to ensure smooth operation. Precautions: Only experienced professionals should handle the purchase and installation of these bearings due to the extra oil clearance which can cause increased wear during startup. Also, be absolutely sure about the journal bearing position you need as engine internals cannot be exchanged or returned. Maintenance advice: Regularly check the oil level and quality. Ensure that the oil is clean and at the appropriate level to keep the bearings well - lubricated and reduce wear. Inspect the bearings periodically for signs of excessive wear or damage, especially after long - term use or high - performance driving.