Improperly Tightened Damper Cap Screws

Affected vehicles (1)

Component / system

Defect

Cummins, Inc. (Cummins) is recalling certain 2023-2024 Power Generation C275D2RE trailers. The vibration damper cap screws may be improperly tightened, which may cause the damper to separate from the engine.

Risk / consequence

A separated damper can become a projectile, striking people nearby and increasing the risk of injury.

Remedy

Dealers will inspect, tighten the cap screws, and repair any damage as necessary, free of charge. Owner notification letters were mailed April 26, 2024. Owners may contact Cummins customer service at 1-800-286-6467. Cummin's number for this recall C7015.

Chronology of events

1. October 2023

   17 October 2023 – Cummins received a report that a vibration damper came loose on a QSC engine operating in a marine application. 23 October 2023 – 28 November 2023 - Cummins Darlington Engine Plant (DEP) began an investigation into the incident. Cummins determined that the damper capscrew torque process may not have been properly applied. Cummins reviewed the bolted-joint analysis, conducted a warranty search, which identified one warranty claim of a report of sheared and loose damper bolts on an L9 engine, and conducted a Product Safety Hazard Analysis to evaluate the potential safety risk on fielded units. 28 November 2023 – The issue was reviewed with the Cummins Product Safety Defect Board, which requested additional monitoring of field data. 6 February 2024 – 27 February 2024– Cummins received a report of a third failure of the damper bolts, this time on a different engine model (QSL). Based on this additional failure, Cummins reevaluated the Product Safety Hazard Analysis and escalated the issue through the Cummins Product Safety Defect Determination process. 27 February 2024 – Based upon the results of the investigation, the Cummins Product Safety Defect Board decided to conduct a safety campaign to address this condition for certain QSC and QSL engines installed in off- highway applications and certain L9 engines used in non-US on-highway applications. 5 March 2024 – Cummins determined that 16 of the off-highway QSL model engines that are the subject of this recall were installed into trailered generator sets that may travel over U.S. public roads. To date, there have been no reports of accidents or injuries due to this condition.

Notification schedule

Dealer notification

MAY 05, 2024 - MAY 05, 2024

Owner notification

MAY 05, 2024 - MAY 05, 2024

Documents (19)