Transmission parts diagrams facilitate identification of the parts in a transmission and allow owners and mechanics to see a close-up view of the transmission. These diagrams also serve to identify the name and location of each part in a transmission.

Transmission parts diagrams are often available online, depending on the make and model of the vehicle. Transmission parts diagrams can range from simple drawings showing how the basic pieces fit together to complex drawings labeling all the pieces connected to the transmission. Transmission diagrams vary greatly based on the make and model of the vehicle and whether the transmission is manual or automatic.