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, protecting your crank and engine block from wear. A thin oil layer lubricates the connection between the bearings and the crank, letting the crank 'float' and minimizing wear. Proper support from these main bearings is vital to prevent oscillations and wear that can harm the crankshaft and other components as the engine gets out of balance. Bearings with extra oil clearance can handle the stress of high - horsepower motors better, but they'll experience more wear during startup. These are recommended for experienced professionals only. Remember, Subaru main bearings are specific to either a #5 or #3 journal bearing position. This isn't related to the VIN or year. You must know this before buying. Engine internals aren't eligible for exchange or return, so be sure about which bearings you need.

Using these ACL main bearings is quite straightforward. Just install them in the correct journal bearing position (#5 or #3) as required for your Subaru turbo model. Make sure to have a thin layer of oil on the bearings when installing to ensure proper lubrication. When starting the engine, keep in mind that if you've chosen bearings with extra oil clearance, there will be more wear at startup. Only experienced professionals should purchase and install these bearings. For maintenance, regularly check the oil level and quality. If you notice any strange noises or vibrations from the engine, it might be a sign that the bearings need inspection. Also, avoid over - revving the engine as it can put unnecessary stress on the bearings. Since engine internals are non - returnable, always double - check your requirements before installation.