KATO 10-2149 ships with KATO tight-lock couplers. No replacement part is officially listed for this product.
| Maker | KATO |
|---|---|
| Product No. | 10-2149 |
| Name | 681 Series "Thunderbird" (refurbished) 3-car add-on unit set |
| Name (Japanese) | 681系「サンダーバード」(リニューアル車)増結編成 3両セット |
| Type | Set |
| Category | EMU |
| Release | 2026-04 |
| JAN | 4949727703770 |
| Standard coupler | KATO tight-lock |
| Coupler notes | KATO tight-lock coupler: hooked between cars, hookless cab ends |
| Evidence | Not stated |
| Source | Official product page |
| Last checked | 2026-10-28 |
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