JE Pistons 07+ Mitsubishi EVO X 4B11 86.25 Bore 9.0:1 CR 0.25 Oversize (Single)

Forged from 2618 aluminum, this JE Pistons single piston is built for high-demand performance applications. It's designed specifically for the Mitsubishi 4B11T engine found in the EVO X models from 2007 to 2015, featuring an 86.25mm bore and a 9.0:1 compression ratio. This piston is 0.25mm oversize, which is important if you're rebuilding or overhauling your engine and need to account for cylinder wall wear or modifications.

JE Pistons has been making performance pistons for over 75 years, and this one is forged and machined entirely in the USA. It incorporates a proprietary Forged Side Relief (FSR) design, which helps minimize friction and power loss by reducing skirt width. Some applications also feature a skirt coating to further reduce friction and wear, while also cutting down on operating noise. An accumulator groove is also included to help manage combustion gas pressure, improving ring seal and maintaining consistent power delivery.

This piston comes as a single unit and includes high-quality wrist pins, locks, and JE Pro Seal premium piston rings, making it a well-built option for your performance build. Please note that this part is not CARB approved and cannot be shipped to California.