JE Pistons BMW S52B32US 12.5KIT Set of 6 Pistons

JE Pistons is known for their extensive experience in creating high-performance forged pistons, and this set for the BMW S52B32US engine is a prime example. If you're rebuilding or upgrading your S52, these pistons are built to handle the demands of performance driving. They are engineered specifically for this engine to offer a solid combination of durability and power.

These pistons are forged in the USA from 2618 aluminum, a material chosen for its high tensile strength, which is crucial for high-demand applications. They feature JE's proprietary Forged Side Relief (FSR) design, which helps minimize friction and power loss by using a reduced skirt width and a shorter wrist pin, saving weight in the process. Depending on the specific application, they may also include an accumulator groove to reduce combustion gas pressure, improving ring seal and maintaining consistent power. Some applications also benefit from a skirt coating that reduces friction and wear on the piston skirts and cylinder walls, while also lowering operating noise.

This kit includes everything you need to get your engine back together: six pistons, high-quality wrist pins, locks, and JE's Pro Seal premium piston rings. They are designed for a 3.425-inch bore and a 12.5:1 compression ratio, featuring an inverted dome/dish design. Please note that these pistons are not CARB approved and cannot be shipped to California.