Part #: KIT-ENGBEAR-1. When you're replacing rods and pistons, it's smart to swap out the rod bearings too. Main bearings are vital as they offer proper support, preventing oscillations and wear that can harm the crankshaft and other parts if the engine gets out of balance. ACL's high-quality rod bearings are designed to be durable and strong, which helps prevent fatigue and failure while reducing drivetrain stress. ALC's main bearings are crafted from a softer metal to protect 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. Adequate support from main bearings is key to avoid damage as the engine becomes more unbalanced. Included: 1x ACL Subaru EJ20/EJ22/EJ25 Standard Size High-Performance Main Bearing Set (for thrust in #5 position, P/N: 5M8309H-STD) and 1x ACL Subaru EJ20/EJ22/EJ25 Standard Size High-Performance Rod Bearing Set (suits 52mm journal size, P/N: 4B8296H-STD). Fitment: 02-14 WRX, 04-21 STI. Note: Does not fit 2015+ Subaru WRX.
Using this ACL engine bearing kit is straightforward. When you're working on replacing rods and pistons in your 02 - 14 Subaru WRX or 04 - 21 STI, simply swap out the old rod and main bearings with the ones in this kit. Make sure to clean the engine area thoroughly before installation. As for maintenance, regularly check the oil level and quality. The thin oil layer on the bearings is important for reducing wear, so keeping the oil in good condition is key. Also, be aware that this kit does not fit 2015+ Subaru WRX models, so double - check your vehicle's model year before use.
