Manufacturer Communications

Vehicles / Peterbilt / 520 / 2021
Bulletin Number Vehicle Make Vehicle Model Model Year Summary
34-074 PETERBILT 520 2021 The current chassis harness connector contains a wire that is no longer necessary with the latest electrical architecture. The presence of the wire
34-087 PETERBILT 520 2021 Non-Safety Campaign: Peterbilt has determined that certain RHSU model 520 trucks, built from 7/16/2018 to 3/20/2020, may have been equipped with a Ma

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