ACL Main Bearing High Performance Standard Size Set, #3 Thrust Bearing Position WRX 2002-2014 / STI 2004-2021 Subaru Turbo Models | 5M8297H-STD

ACL's main bearings are crafted from a softer metal. This smart design prevents wear on your crank and engine block. A thin oil layer lubricates the connection between the bearings and the crank. This lets the crank 'float', significantly cutting down on wear. Main bearings offer proper support, which is essential to stop oscillations and wear that can harm the crankshaft and other parts as the motor gets more 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. We advise that only experienced professionals buy these. When purchasing, know that Subaru main bearings are specific to either a #5 or #3 journal bearing position. This position isn't related to the VIN or year. You must figure it out before buying. Make sure you get the right bearings, as engine internals aren't eligible for exchange or return.

Using these ACL main bearings is straightforward. First, identify whether you need the #5 or #3 journal bearing position for your Subaru turbo model. Once you've got the right ones, carefully install them in your engine. Remember, these bearings are designed to protect your crank and engine block, so make sure they're properly seated. When starting up your engine, keep in mind that bearings with extra oil clearance may experience more wear at first. Only experienced professionals should purchase these, as incorrect installation can lead to engine damage. For maintenance, regularly check the oil levels and the condition of the bearings. If you notice any unusual noise or performance issues, it's a good idea to have the bearings inspected. Always ensure that you're using the correct type of oil to keep the lubrication layer in good shape.