KATO 10-1921 ships with KATO tight-lock couplers. No replacement part is officially listed for this product.
| Maker | KATO |
|---|---|
| Product No. | 10-1921 |
| Name | 313 Series 5300 subseries "Special Rapid" 2-car add-on set |
| Name (Japanese) | 313系5300番台<新快速>2両増結セット |
| Type | Set |
| Category | EMU |
| Release | 2026-01 |
| JAN | 4949727703893 |
| Standard coupler | KATO tight-lock |
| Coupler notes | KATO tight-lock coupler (hooked and hookless; see the official page for positions) |
| Evidence | Not stated |
| Source | Official product page |
| Last checked | 2026-10-28 |
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