4L80E Internal Wiring Harness, 2004-ON.

Rostra Precision Controls, an ISO 9001/TS 16949 certified company, in addition to supplying OEM components to some of the world’s largest auto and truck manufacturers, is also a leading manufacturer of aftermarket transmission repair products. Rostra is continuously pioneering the development and marketing of innovative automotive accessories. Backed by nearly 150 years of experience in precision manufacturing, Rostra has earned their reputation as an ideal partner throughout the automotive industry.