Part #: KIT - ENGBEAR - 1. When replacing rods and pistons, it's smart to change the rod bearings too. Main bearings are vital. They stop oscillations and wear that can harm the crankshaft and other parts if the engine gets out of balance. ACL's top - quality rod bearings are designed to be durable and strong, preventing fatigue and failure while reducing drivetrain stress. ALC's main bearings are made of softer metal to protect your crank and engine block. A thin oil layer lubricates the bearings and the crank, letting the crank 'float' and reducing wear. Main bearings are crucial to avoid damage as the engine goes out of balance. Included: 1x ACL Subaru EJ20/EJ22/EJ25 Standard - Size High - Performance Main Bearing Set P/N: 5M8309H - STD (for thrust in #5 position) and 1x ACL Subaru EJ20/EJ22/EJ25 Standard - Size High - Performance Rod Bearing Set P/N: 4B8296H - STD (suits 52mm journal size). Fitment: 02 - 14 WRX, 04 - 21 STI. Note: Does NOT fit 2015+ Subaru WRX.
Using this ACL engine bearing kit is easy. First, make sure your engine is turned off and cooled down. When you're replacing the rods and pistons, just install the rod bearings included in the kit. The main bearings should be carefully placed to provide proper support for the engine. Remember, these bearings are designed to work with specific Subaru models (02 - 14 WRX and 04 - 21 STI), and they won't fit 2015+ Subaru WRX. As for maintenance, regularly check the oil level. The thin layer of oil on the bearings helps them work well. If you notice any strange noises or vibrations from the engine, it might be time to check the bearings. Also, always follow the manufacturer's instructions for oil changes and general engine upkeep to keep your bearings in top condition.
