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June 1, 2022 Service bulletin

Updated Freightliner Service Bulletin for Heater Hose Reduced Clearance May

Freightliner technical service bulletin SB83-161 for 2018-2022 Freightliner Business Class M2.

Bulletin number
SB83-161
Component
Engine and engine cooling
Summary
Updated Freightliner Service Bulletin for Heater Hose Reduced Clearance May Cause Early Horn Failures

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