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UD Trucks, Isuzu — recall

Name: UD Trucks, Isuzu
Brand: UD Trucks

Automotive · Japan · 2025-04-08

Origin: 日本

UD Trucks and Isuzu heavy-duty tractors, coupler plate improper installation

Country	Japan
Category	Automotive
Published	2025-04-08
Country of origin	日本
Manufacturer	UD Trucks Corporation
Models affected	Quon, Giga
Units affected	224
Defect	In heavy-duty transport tractors, due to an improper installation process for the coupler plate that supports the fifth-wheel coupler, some vehicles have the front left and right sides of the plate fastened with non-standard bolts and nuts. As a result, if use continues in this condition, the bolts and nuts may loosen, and in the worst case, they may detach while driving, potentially obstructing other traffic.
Component	Coupling device (Flange lock nut: for securing the fifth-wheel coupler plate)
Remedy	For all vehicles, the bolts and nuts on the front left and right sides (up to 4 locations) of the fifth-wheel coupler plate will be replaced with genuine parts.
Recall number	5639
Official notice	View source ↗

What this means for sellers

Likely platform / channel actions	OEMs/dealers will run the remedy (repair, replace or refund); component suppliers in the chain may face traceback.
Self-check for comparable products	Check your comparable products' design, materials and QC records against the defect described here.
Rules & standards likely involved	the destination market's product-safety rules and mandatory standards

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