Komatsu — recall
Automotive · Japan · 2025-10-17
Origin: 日本
Komatsu shovel loaders' hydraulic oil tank breather groove improper dimensional control may cause a gap
| Country | Japan |
|---|---|
| Category | Automotive |
| Published | 2025-10-17 |
| Country of origin | 日本 |
| Manufacturer | Komatsu Ltd. |
| Models affected | WA80-8, WA100-8, WA150-8, WA200-8, WR12-8 |
| Units affected | 1269 |
| Defect | In the hydraulic oil tank breather of shovel loaders, due to improper dimensional control of the groove that seals the cover and case, a gap may occur between the bayonet (resin) on the case side and the bayonet (aluminum) on the cover side. Additionally, due to insufficient consideration of O-ring dimensions, the compression allowance may be too small. As a result, the O-ring may not be able to sufficiently fill the gap, and if use is continued as is, hydraulic oil may leak significantly due to the internal pressure of the hydraulic oil tank. |
| Component | Power transmission system (hydraulic oil tank) |
| Remedy | For all vehicles, replace the O-rings with improved parts. |
| Recall number | 5724 |
| 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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