JE Pistons NIS QR25 9:1 89M KIT Set of 4 Pistons

JE Pistons is known for making well-built forged pistons that have proven themselves in racing for over 75 years. They engineer and machine every piston in the USA, specifically for each engine and application, to give you the best mix of durability and performance. This piston kit is designed for the Nissan QR25DE engine, giving you a 9.0:1 compression ratio with a 3.504-inch bore.

This set uses a proprietary Forged Side Relief (FSR) design, which helps reduce friction and power loss by using a narrower skirt and a shorter wrist pin, saving weight. The pistons are made from 2618 aluminum, a strong material that holds up well under high-demand performance situations. Depending on the specific application, these pistons may include an accumulator groove to help manage combustion gas pressure, improving ring seal and keeping power consistent. They also often come with a skirt coating to further reduce friction and wear, which can also help quiet down the engine operation.

This kit includes everything you need to get your engine rebuilt: four pistons, high-quality wrist pins, locks, and JE Pro Seal premium piston rings. They are made 100% in the USA, ensuring you're getting a solid option for your performance build.