ACL Main Bearing Duraglide Standard Size Set, #3 Thrust Bearing Position WRX 2002-2014 / STI 2004-2021 Subaru Turbo Models | 5M8297A-STD

ACL's main bearings are crafted from a softer metal. This design ensures that your crank and engine block won't wear out easily. A thin oil layer lubricates the connection between the bearings and the crank, letting the crank 'float' and minimizing wear. Proper support from main bearings is vital to prevent oscillations and wear that can harm the crankshaft and other components as the engine 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 suggest 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 determined by VIN or year, so you must know it before buying. Remember, engine internals aren't eligible for exchange or return, so be sure which bearings you need.

Using these ACL main bearings is straightforward. Just install them in the correct journal bearing position (#5 or #3) in your Subaru turbo model engine. It's super important to know the right position before you buy and install. For high - horsepower motors, these bearings can handle the stress well, but keep in mind that they'll wear more during startup. As for maintenance, regularly check the oil level and quality. A good oil supply is key to keeping the bearings lubricated and reducing wear. Since these parts aren't returnable, take your time to make sure you're getting the right ones for your engine. If you're not an experienced professional, it's a good idea to consult someone who is before making a purchase.