The Whirlpool OBJY2, EBJ60663801 Transformer is a genuine OEM electrical component designed for Whirlpool microwaves. This transformer supplies the necessary voltage to power the magnetron, which generates the microwave energy used for cooking and heating food. If your microwave is not heating but still powers on, a faulty transformer may be the cause?this replacement restores full heating performance. Key Features OEM transformer for Whirlpool microwaves Provides the high voltage required for magnetron operation Restores proper heating and cooking performance Factory-tested for safety, reliability, and durability Direct replacement for easy installation Specifications Part Numbers: OBJY2 / EBJ60663801 Type: Microwave Transformer Application: Microwave oven power supply Manufacturer: Whirlpool Corporation Compatible Models MT4078SPQ4 MT4078SPB4 Why Choose This Item Choose the Whirlpool EBJ60663801 Transformer to restore safe and efficient microwave heating. With genuine OEM quality, exact fit, and durable construction, it ensures your microwave operates reliably and performs like new.