Check the listing for details. 3-Piece Piston Set HI PER BLUE High Performance 4L60E 4L65E 74960K 74960KHPB. Condition: New. Listed at 49.95 USD. High Performance Piston KitFits GM 4L60 / 4L60E / 4L65E This Molded Rubber Piston Kit (Performance) is a must-have for any car enthusiast looking to enhance their vehicle's performance. The kit, which includes a Piston Kit, is designed for 4L60E and 4L65E transmissions. It is manufactured by HI-PER BLUE and comes with Industry Part Numbers 74960K and A74960EHPK. The material used in this kit is high-quality molded rubber, making it durable and long-lasting. It is ideal for those who want to upgrade their car's transmission without sacrificing quality. Why professionals insist on using Hi-Per Blue pistons:Hi-Per Blue pistons are reengineered original equipment design, manufactured with upgraded high performance blue AEM (ethylene acrylic elastomer) for superior thermal and chemical resistance, offering better fit and performance. Other pistons are often made of a less-tolerant alkyl acrylate copolymer (ACM). Why AEM is a better choiceAEM is an ASTM designation for Ethylene Acrylic Elastomer, a very high performance material used in applications where exceptional heat and oil resistance are required. Hi-Per Blue pistons offer superior compressive stress relaxation, dynamic fatigue resistance, vibration dampening, and resistance to acid condensates. Features and Benefits:Engineered utilizing best-in-class materials Meets or exceeds OEM specificationsBetter temperature rangeHigher tear strengthBetter bonding characteristicsDesigned for better seal support ________________________________________Purchase this kit today and take your car's performance to the next level!Buy with confidence * Check out our feedbackAll of our items listed are in stock and ready to ship We Quick-Ship Every Day !