ACL Rod Bearing High Performance Standard Size Set 48mm Journal Bearing WRX 2002-2014 / STI 2004-2021 Subaru Turbo Models | 4B8320H-STD

When you're upgrading your rods and pistons, it's smart to replace the rod bearings too. Good support from main bearings is key to stop oscillations and wear. If the engine gets out of balance, it can harm the crankshaft and other parts. ACL's high - quality rod bearings are designed tough and strong. They prevent fatigue and failure and also reduce stress on the drivetrain. Remember, Subaru rod bearings come in 48mm or 52mm journal sizes. The journal size isn't based on the VIN or year, so you need to measure it before buying. Engine internals like these can't be exchanged or returned, so be sure you're getting the right ones.

Using these ACL rod bearings is straightforward. When you're working on replacing your rods and pistons, just swap out the old rod bearings with these new ones. But here's a really important thing: before you buy, measure the journal size. It's either 48mm or 52mm, and it's not related to the car's VIN or year. Make sure you measure accurately to get the right fit. As for maintenance, these bearings are built to last. But it's a good idea to check them regularly during routine engine check - ups. Look for any signs of wear or damage. If you notice anything off, it might be time to replace them. And keep in mind, once you've installed engine internals like these rod bearings, they can't be exchanged or returned, so double - check your needs before making the purchase.