| Item | Part No. | Part Name | Qty | Serial No. |
| (266-20-49100) | ENGINE ASS'Y | 4501- | ||
| KT14621-0304-1 | CYLINDER HEAD ASS'Y | 4501- | ||
| 1 | \6\ | HEAD | 4501- | |
| 2 | KT06311-70035 | PLUG | 4501- | |
| 3 | KT14301-3396-1 | PIN | 4501- | |
| 4 | KT14351-0451-3 | STUD | 4501- | |
| 5 | KT14351-0351-1 | NUT | 4501- | |
| 6 | KT14351-0354-2 | WASHER | 4501- | |
| 7 | KT15221-0341-2 | STUD | 4501- | |
| 8 | KT15221-0351-1 | NUT | 4501- | |
| 9 | KT15221-0354-1 | WASHER | 4501- | |
| 10 | KT14621-0331-1 | GASKET | 4501- | |
| 11 | KT14351-1311-2 | VALVE,INLET | 4501- | |
| 12 | KT14351-1312-2 | VALVE,EXHAUST | 4501- | |
| 13 | KT14351-1324-1 | SPRING | 4501- | |
| 14 | KT14351-1333-1 | RETAINER | 4501- | |
| 15 | KT14351-1336-3 | COLLET | 4501- | |
| KT14351-1403-1 | ROCKER ARM ASS'Y,(1) | 4501- | ||
| KT14351-1404-1 | ROCKER ARM ASS'Y,(2) | 4501- | ||
| 16 | \6\ | ARM,ROCKER (1) | 4501- | |
| \6\ | ARM,ROCKER (2) | 4501- | ||
| 17 | KT14351-1418-1 | BUSHING | 4501- | |
| 18 | KT14301-1423-1 | SCREW | 4501- | |
| 19 | KT02116-00080 | NUT | 4501- | |
| 20 | KT14351-1405-3 | SHAFT ASS'Y,ROCKER ARM | 4501- | |
| 21 | KT01517-01045 | STUD | 4501- | |
| 22 | KT02118-00100 | NUT | 4501- | |
| 23 | KT04512-00100 | WASHER | 4501- | |
| 24 | KT14301-7311-4 | COCK | 4501- | |
| 25 | KT14621-1421-1 | GUIDE | 4501- |