JE Pistons BMW N55B30 3.307 in Bore- Single

This listing is for a single JE Pistons forged piston designed for the BMW N55B30 engine. You'll receive the piston itself, along with high-quality wrist pins, locks, and a JE Pro Seal premium piston ring set. This piston features a 3.307-inch bore and a 9.50:1 compression ratio with an inverted dome/dish design, intended to optimize performance and durability for demanding applications.

JE Pistons crafts these pistons in the USA from 2618 aluminum, a material chosen for its high tensile strength, making it well-suited for high-performance engines. The design incorporates JE's proprietary Forged Side Relief (FSR) technology, which helps minimize friction and reduce weight by using a narrower skirt and a shorter wrist pin. Depending on the specific application, these pistons may also feature a skirt coating to further reduce friction and wear, while also helping to quiet down operation. An accumulator groove can also be present to manage combustion gas pressure, improving ring seal and maintaining consistent power output.

Because these are performance pistons, it's important to note they are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.