| Ref No. | Parts No. (ChangeNo.) |
English Name | Minimum Order Quantity | Accept order or not |
| 1 | A4K30515 | BELL BUFFING YTR4335G2 | 1 PC. | Detail |
| 10 | A1K44435 | 3RD VALVE O/S.SLIDE BUFFING YTR2330 | 1 PC. | Order |
| 11 | A1K30525 | M'PIPE ASS'Y BUFFING YTR2330 | 1 PC. | Detail |
| 12 | A3742300 | FINGER HOOK TR4335G | 1 PC. | Detail |
| 13 | A1K30605 | O/S TUNING SLIDE LOWER BUFFING YTR2330 | 1 PC. | Detail |
| 14 | A1K30710 | D BRACE(1) TR1335 | 1 PC. | Detail |
| 15 | A1K30720 | D BRACE(2) TR1335 | 1 PC. | Detail |
| 16 | A1K42010 | A BRACE (1) TR1335 | 1 PC. | Detail |
| 17 | A5142020 | BRACE, O/S.TUN.SL.= 3RD V.O/S.SL. TR6335 | 1 PC. | Detail |
| 18 | A1K30115 | 1ST VALVE SLIDE ASS'Y G-LAC YTR2330 | 1 PC. | Detail |
| 18-1 | A2K30280 | 1ST VALVE SLIDETHUMB HOOK & HOLDER YCR | 1 PC. | Detail |
| 19 | A1K30125 | 2ND VALVE SLIDE ASSY G-LAC YTR2330 | 1 PC. | Detail |
| 19-1 | A0143270 | KNOB FOR TRUMPET & CORNET | 1 PC. | Detail |
| 2 | A1K44205 | BELL FERRULE YTR2330 | 1 PC. | Detail |
| 20 | A4K30135 | 3RD VALVE SLIDE ASS'Y G-LAC YTR4335G2 | 1 PC. | Detail |
| 20-1 | A0743381 | 3RD WATER KEY HOLDER TR | 1 PC. | Detail |
| 20-2 | A0743391 | WATER KEY NIPPLE TR4335 | 1 PC. | Detail |
| 20-3 | A4K30290 | 3RD VALVE SLIDE FINGER & HOLDER TR6335G | 1 PC. | Detail |
| 21 | A4K30105 | TUNING SLIDE ASS'Y G-LAC YTR4335G2 | 1 PC. | Detail |
| 21-1 | A3943170 | T.SL.WATER KEY HOLDER FOR YTR-6XXX | 1 PC. | Detail |
| 21-2 | A3943180 | T.SL.WATER KEY NIPPLE FOR YTR-6XXX | 1 PC. | Detail |
| 21-3 | A3K31052 | BRACE, TUNING SLIDE CROOK YTR3335 | 1 PC. | Order |
| 22 | A1K30015 | PISTON NO.1 LAP YTR2330 | 1 PC. | Detail |
| 23 | A1K30025 | PISTON NO.2 LAP YTR2330 | 1 PC. | Detail |
| 24 | A1K30035 | PISTON NO.3 LAP YTR2330 | 1 PC. | Detail |
| 25 | A2K41025 | TOP VALVE CAP NI-PTD YTR2330 | 1 PCS. | Detail |
| 25 | A2L41025 (048571-) |
TOP VALVE CAP YTR2330S | 1 PCS. | Detail |
| 26 | A1641050 | VALVE CAP FELT YTR6310Z | 1 PCS. | Order |
| 27 | A2K41035 | BOTTOM VALVE CAP NI-PTD YTR2330 | 1 PCS. | Detail |
| 27 | A2L41035 (048571-) |
BOTTOM VALVE CAP SI-PTD YTR2330S | 1 PCS. | Detail |
| 28 | A0141081 | VALVE STEM YTR1335 | 1 PCS. | Order |
| 29 | A3141090 | VALVE GUIDE TR1310 | 1 PCS. | Order |
| 3 | A1K42260 | FRONT BELL BRACE TR1335 | 1 PC. | Order |
| 30 | A0141070 | VALVE SPRING CR,TR,FH | 1 PCS. | Order |
| 31 | A0141060 | VALVE FELT YTR2335 | 1 PCS. | Order |
| 32 | A2K41005 | VALVE BUTTON WITH PEARL NI-PTD YTR2330 | 1 PCS. | Detail |
| 32 | A2L41005 (048571～) |
VALVE BUTTON WITH PEARL SI-PTD YTR2330S | 1 PCS. | Detail |
| 32-1 | A3341040 | VALVE BUTTON PEARL TR2335 | 1 PC. | Order |
| 34 | A3141212 | 3RD VALVE STOPPER SCREW NI-PTD YTR1335 | 1 PC. | Order |
| 35 | A3390000 | TUNING SLIDE WATER KEY SET TR,AH,MP | 1 SET | Order |
| 35-1 | A3130200 | T.SLIDE WATER KEY TR,AH | 1 PC. | Order |
| 35-2 | A0141160 | M'PIPE WATER KEY SPRING CR,TR,FH | 1 PCS. | Detail |
| 35-3 | A0141191 | WATER KEY SCREW M2.5P0.45 (BS) CR,TR | 1 PC. | Order |
| 35-4 | A0141180 | WATER KEY CORK CR,TR,FH | 1 PCS. | Detail |
| 36 | A1191001 | 3RD VALVE SLIDE WATER KEY SET CR2310-2 | 1 SET | Order |
| 36-1 | A0730230 | 3RD VALVE SLIDE WATER KEY CR,TR,FH | 1 PC. | Order |
| 36-2 | A3341171 | 3RD VALVE SLIDEWATER KEY SPRING YTR2310 | 1 PC. | Detail |
| 36-3 | A0141191 | WATER KEY SCREW M2.5P0.45 (BS) CR,TR | 1 PC. | Order |
| 36-4 | A0141180 | WATER KEY CORK CR,TR,FH | 1 PCS. | Detail |
| 4 | A1K42270 | REAR BELL BRACETR1335 | 1 PC. | Order |
| 5 | A4K30505 | VALVE CASING ASS'Y BUFFING YTR4335G2 | 1 PC. | Order |
| 6 | A2K30665 | 1ST VALVE I/S. SLIDE & FER. YTR2330 | 1 PC. | Detail |
| 7 | A1K44415 | 1ST VALVE O/S. SLIDE BUFFING YTR2330 | 1 PC. | Detail |
| 8 | A1K44425 | 2ND VALVE O/S.SLIDE BUFFING YTR2330 | 1 PC. | Order |
| 9 | A2K30685 | 3RD VALVE I/S. SL. & FER. BUFFING YTR233 | 1 PC. | Order |
| C-1-1 | BX492020 | HANDLE #C3 SET W. SCREWS ASC275 | 1 PC. | Detail |
| C-2 | BX470002 | SHOULDER BELT SLC201SLS201 POLYPROPYLENE | 1 PC. | Detail |
| C-4-1 | BX491130 | BOTTOM LEG WITH SCREW TRC-450E | 1 PC. | Order |