Honda — recall

Automotive · Japan · 2026-03-19

Origin: 日本

Honda engine piston and top ring improper design, causing wide gap

Country	Japan
Category	Automotive
Published	2026-03-19
Country of origin	日本
Manufacturer	Honda Motor Co., Ltd.
Models affected	CB1000F, CB1000F SE, CB1000 HORNET, CB1000 HORNET SP
Units affected	1961
Defect	Due to improper design of the piston and top ring in the engine, the gap between the piston and top ring is wide. If the engine repeatedly decelerates using engine braking from a high RPM state, engine oil may be drawn up into the combustion chamber and burn, which can increase oil consumption. As a result, abnormal noise may occur due to poor oil lubrication. If use is continued as is, the engine may be damaged while driving, potentially causing the rear wheel to lock and the vehicle to overturn, or it may lead to a fire.
Component	Engine (Piston, Top Ring)
Remedy	For all affected vehicles, the piston and top ring will be replaced with improved parts. Additionally, the engine will be inspected, and if abnormal noise is present, the engine assembly will be replaced.
Recall number	5789
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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