Attention Willis APU Customers

While we are not furthering the development of APUs, we will provide warranty, parts and service needs for current customers.


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Dear Customer:


Willis Power Systems is no longer manufacturing APU systems. However, we are dedicated to fully supporting our current customers’ needs regarding warranty, parts, and service. All support is currently managed through Peterbilt of Springfield. Contact Peterbilt of Springfield for all of your support needs. We apologize for any inconvenience.

Sincerely,

The Larson Group, Inc.

Willis APU

Were You A Willis APU Customer?

Peterbilt of Springfield is dedicated to fully supporting Willis APU customers’ needs regarding warranty, parts, and service.

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