Komatsu — recall

Automotive · Japan · 2026-06-05

Origin: 日本

Komatsu shovel loaders for fuel injector spray nozzle wear

Country	Japan
Category	Automotive
Published	2026-06-05
Country of origin	日本
Manufacturer	Komatsu Ltd.
Models affected	WA80-8, FH35, FH40, FH45, FH50, FH60, FH70, FH80
Units affected	2420
Defect	In shovel loaders, etc., due to insufficient design review, ① the fuel injector's spray nozzle wears out due to deterioration over time, increasing fuel injection volume, ② dust, etc., adheres to the inside of the variable turbo, reducing air supply efficiency, and ③ dust that could not be captured by the air cleaner adheres to the sensing part of the MAF sensor*, leading to misrecognition of a higher air flow rate than actual. As a result, if use is continued, these defects will combine to reduce the air-fuel ratio, increase soot generation, and potentially cause PM (particulate matter) emis…
Component	Engine (fuel injector, ECU (Engine Control Unit))
Remedy	For all vehicles, the following countermeasures will be implemented: ① Replace the fuel injector with an improved part. ② Rewrite the controller program with an improved program. ③ Add the operating method for MAF sensor automatic correction to the owner's manual. ④ Affix a nameplate to the air cleaner element cover to encourage the implementation of MAF sensor automatic correction.
Recall number	5827
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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