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June 10, 2019 Service bulletin

Non-Safety Campaign: Identified Model 520 vehicles, equipped with natural gas engine, were built with a...

Peterbilt technical service bulletin 45-061 for 2018-2019 Peterbilt 520.

Bulletin number
45-061
Component
Engine and engine cooling: cooling system: hoses/lines/piping/fittings
Summary
Non-Safety Campaign: Identified Model 520 vehicles, equipped with natural gas engine, were built with a compressor supply hose with reinforced spring that could break loose and cause internal engine damage.

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