ACL Main Bearing High Performance 0.25mm Oversized Set, #3 Thrust Bearing Position WRX 2002-2014 / STI 2004-2021 Subaru Turbo Models | 5M8297H-.25

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, letting the crank 'float' and minimizing wear. Proper support from these main bearings is vital. It stops oscillations and wear that can harm the crankshaft and other parts as the engine gets out of balance. Bearings with extra oil clearance are great at handling the stress of high - horsepower motors. But they may wear more during startup. We suggest these be bought only by experienced pros. When buying Subaru main bearings, note they're for either #5 or #3 journal bearing positions. This isn't related to VIN or year, so you must know it before buying. Engine internals aren't eligible for exchange or return, so be sure which ones you need.

How to use: Install these main bearings according to your engine's requirements for #3 journal bearing position. Make sure to clean all parts before installation. Note that these are designed for Subaru turbo models from 2002 - 2014 WRX and 2004 - 2021 STI. Precautions: Only experienced professionals should purchase and install these bearings. Since they have extra oil clearance, they may experience more wear during startup. Also, know your engine's journal bearing position before buying as engine internals can't be exchanged or returned. Maintenance advice: Regularly check the oil level and quality to ensure proper lubrication of the bearings. Keep an eye on the engine's performance and if you notice any unusual noises or vibrations, have the bearings inspected.