KATO 10-1339 ships with KATO tight-lock couplers. No replacement part is officially listed for this product.
| Maker | KATO |
|---|---|
| Product No. | 10-1339 |
| Name | E231 Series Joban Line/Ueno-Tokyo Line 5-car set |
| Name (Japanese) | E231系 常磐線・上野東京ライン 5両セット |
| Type | Set |
| Category | EMU |
| JAN | 4949727666471 |
| Standard coupler | KATO tight-lock |
| Coupler notes | KATO tight-lock coupler (telescopic, body-mounted) |
| Evidence | Not stated |
| Source | Official product page |
| Last checked | 2026-10-28 |
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