Penske Allison of Cerritos is a Cerritos dealer and a new car and used car Cerritos CA dealership.
The AT500 / 1500 Product Family
The AT500 / 1500 Product family is comprised of several individual transmission models. The following explanation may be helpful in understanding the basic characteristics and suggested uses for each model in the Product Family. The name of most transmission models consist of two elements, the Base Model Number and the Model Family. The following list has been broken down into the three basic steps that must be determined to match you with the transmission specification that you need.
The AT500(R) and AT1500P
Series transmissions are fully automatic and torque-converter driven, with hydraulic shift controls.
These models have four forward speeds, and are best suited for light - medium duty, on-highway applications.
For the AT542 & AT545
models, torque and speed are transferred from the engine to the transmission gear pack through the torque converter at all times.
The AT1542P & AT1545P
models incorporate a lockup clutch in their design which is automatically engaged, when operating conditions permit, to provide direct drive between the input and output sections of the torque converter -effectively providing direct drive from the engine to the transmission gear pack.
The input section of these two lockup-equipped models also includes a damper to minimize the need for additional engine vibration control.
The PTO drive provision is standard for the AT1500P
Four basic four-speed transmission models are available in the AT transmission family, each containing features which have been designed for specific vocational needs: Without lockup clutch with lockup clutch
• AT542 • AT1542P • AT545 • AT1545P
AT542 & AT1542P
– This four-speed model is best suited for light duty on-highway applications such as school and shuttle buses, motor homes, recreational vehicles, general pickup and delivery, and fire/rescue/ambulance vehicles.
AT545 & AT1545P
– The four-speed AT545 model is best suited for medium duty on-highway applications of a multi-nature, such as: school bus, fuel delivery, beverage delivery, one-way rental trucks, fire/rescue/ambulance vehicles, road sweepers, general pickup and delivery, and limited transit.