See Figure 1
Toyota's have a model identification plate which is located under the hood on the firewall. The models are identified by a code. These codes explain exactly what your van is and has. For example; model number TCR20L-RFSGVA is a 1997 Previa 4WD, 4 speed automatic transmission, 4 door wagon LE, DOHC supercharged 4 cylinder. When you walk into a dealer or your local parts store to purchase a part for your van, and are not sure exactly the type of vehicle you drive, the model number and vehicle identification numbers are the key.