![CYLINDER HEAD AND VALVES [01D21] John Deere Parts scheme](http://c1.a2109.com/jdeere/t/tp18/tp18069________un01jan94.png "CYLINDER HEAD AND VALVES [01D21] John Deere catalog part")
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Parts on group CYLINDER HEAD AND VALVES [01D21]:
| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | R53223 | [18] | Cap Screw | 1/2" X 4-1/4" |
| 2. | T20168 | [18] | Washer | |
| 3. | T20129 | [8] | Cap | |
| 4. | T20077 | [16] | Retainer | |
| 5. | T20176 | [8] | Retainer | |
| 6. | R26125 | [8] | Spring | |
| 7. | A3910R | [AR] | Plug | |
| 7. | CD16284 | [AR] | Plug | |
| 8. | R51734 | [4] | Valve Seat Insert | EXHAUST |
| 9. | AR62452 | [1] | Cylinder Head | (MARKED R54560) |
| 10. | R79624 | [4] | Exhaust Valve | STANDARD STEM, (SUB FOR R52252) |
| 10. | R79625 | [4] | Exhaust Valve | 0.08 MM (.003") OVERSIZED STEM, (SUB FOR R57333) |
| 10. | R79626 | [4] | Exhaust Valve | 0.38 MM (.015") OVERSIZED STEM, (SUB FOR R57335) |
| 10. | ........ | [4] | Exhaust Valve | ( R79627 NO LONGER AVAILABLE) 0.76 MM (.030") OVERSIZED STEM, (SUB FOR R57337) |
| 11. | R79623 | [4] | Intake Valve | STANDARD STEM, (SUB FOR R52251) |
| 11. | R79628 | [4] | Intake Valve | 0.08 MM (.003") OVERSIZED STEM, (SUB FOR R57332) |
| 11. | R79629 | [4] | Intake Valve | 0.38 MM (.015") OVERSIZED STEM, (SUB FOR R57334) |
| 11. | ........ | [4] | Intake Valve | ( R79630 NO LONGER AVAILABLE) 0.76 MM (.030") OVERSIZED STEM, (SUB FOR R57336) |
| 12. | R91878 | [1] | Gasket | (SUB FOR R59448 AND R80242) |
| 13. | R87627 | [4] | O-Ring | EXHAUST, (SUB FOR R27976, THIS APPLICATION) (USE WITH R79624, R79625, R79626 AND R79627) |
| 13. | R87627 | [4] | O-Ring | INTAKE, (SUB FOR R27976, THIS APPLICATION) (USE WITH R79623, R79628, R79629 AND R79630) |
| 14. | AR63644 | [1] | Cylinder Head | (MARKED R54560 OR R56790) |