ACL Main Bearing High Performance 0.50mm Oversized Set, #3 Thrust Bearing Position WRX 2002-2014 / STI 2004-2021 Subaru Turbo Models | 5M8297H-.50

ACL's main bearings are crafted from a softer metal. This helps prevent wear on your crank and engine block. A thin oil layer lubricates the connection between the bearings and the crank, letting the crank 'float' and reduce wear. Proper support from these main bearings is vital to stop oscillations and wear that can harm the crankshaft and other parts when the engine gets out of balance. Bearings with extra oil clearance can handle the stress of high - horsepower motors better, but they'll wear more during startup. We suggest these be bought only by experienced pros. When buying, note that Subaru main bearings are for either #5 or #3 journal bearing positions. This isn't related to VIN or year, so you must know it before purchasing. Engine internals can't be exchanged or returned, so make sure you get the right bearings.

How to use: Install the ACL main bearings according to the specific #5 or #3 journal bearing position required for your Subaru model. Ensure a proper fit to get the best performance and protection for your engine. Note: Only experienced professionals should purchase these bearings as they require special knowledge for installation. Also, make sure you know the correct journal bearing position before buying as engine internals are non - returnable. Maintenance: Regularly check the oil level as the thin oil layer between the bearings and the crank is crucial for reducing wear. If you notice any signs of excessive wear during startup, it's a good idea to have the bearings inspected by a professional.