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September 9, 2022 Service bulletin

Fix-As-Fail On certain chassis with Low Air Leaf Suspension or Low-Low Air Leaf Suspension, the Height...

Peterbilt technical service bulletin 14-043 for 2015-2022 Peterbilt 579, 2015-2022 Peterbilt 389 and 2015-2022 Peterbilt 567 and others.

Bulletin number
14-043
Component
Suspension
Summary
Fix-As-Fail On certain chassis with Low Air Leaf Suspension or Low-Low Air Leaf Suspension, the Height Control Valve (HCV) arm may be rubbing on other components when the bend in the arm is facing outboard. Flipping the bend in the HCV arm inboard prevents the rub.

Owners of these vehicles have filed 6 complaints in the suspension category.

Vehicles covered

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