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Vehicle recall 18V520000 · August 7, 2018

Terex C4000, C5000 and 2 more models

The welds between the coupler and hex shaft may be undersized, causing them to fail and the auger to fall unexpectedly.

Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.

Summary
Terex south Dakota, Inc. (Terex) is recalling certain 2015-2018 Terex C4000, C5000, C6000, and General digger derricks. The welds between the coupler and hex shaft may be undersized, causing them to fail and the auger to fall unexpectedly.
Consequence
If the auger falls, it can increase the risk of injury to the user or bystanders.
Remedy
Terex will notify owners, and dealers will either repair the weld or replace the affected component, free of charge. The recall began October 3, 2018. Owners may contact Terex customer service at 1-605-882-4000. Terex's number for this recall is SN665.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Recall details

NHTSA campaign
18V520000
Reported to NHTSA
August 7, 2018
Filed by
Terex South Dakota, Inc.
Manufacturer campaign
SN665
Owner notification
October 3, 2018
Vehicles potentially affected
101
Initiated by
the manufacturer
Components
Equipment
Recall 18V520000 on nhtsa.gov, with the manufacturer’s documents

Vehicles covered

As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.

Has your Terex been repaired?

Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.

NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Terex dealer can also check your VIN. Recall repairs are free.