KATO 10-1778 ships with KATO tight-lock couplers. No replacement part is officially listed for this product.
| Maker | KATO |
|---|---|
| Product No. | 10-1778 |
| Name | 381 Series "Yakumo" (refurbished set) 3-car add-on set |
| Name (Japanese) | 381系 「やくも」 (リニューアル編成) 3両増結セット |
| Type | Set |
| Category | EMU |
| Release | 2023-03 |
| JAN | 4949727686790 |
| Standard coupler | KATO tight-lock |
| Coupler notes | KATO tight-lock coupler (hookless, body-mounted); dummy couplers on cab ends |
| Evidence | Not stated |
| Source | Official product page |
| Last checked | 2026-10-28 |
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