| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 113-21-41101 | FRAME,(D31S) | 40491- | |
| 113-21-41100 | FRAME,(D31S) | 40001-40490 | ||
| 113-21-41101 | FRAME,(D31Q) | 40497- | ||
| 113-21-41100 | FRAME,(D31Q) | 40001-40496 | ||
| 2 | 113-21-21180 | BOSS (WELDED) | 40001- | |
| 3 | 131-21-41520 | PLUG | 40001- | |
| 4 | 07043-01019 | PLUG | 40001- | |
| 5 | 07049-02025 | PLUG | 40001- | |
| 6 | 07049-01012 | PLUG | 40001- | |
| 7 | 07044-12412 | PLUG | 40001- | |
| 8 | 07002-02434 | O-RING | 40001- | |
| 9 | 07040-13016 | PLUG | 40001- | |
| 10 | 07002-03034 | O-RING | 40001- | |
| 11 | 113-21-41210 | COVER | 40001- | |
| 12 | 581-95-19870 | BOSS | 40001- | |
| 13 | 01010-51040 | BOLT | 40001- | |
| 14 | 01602-21030 | WASHER,SPRING | 40001- | |
| 15 | 113-21-21230 | COVER | 40001- | |
| 16 | 113-21-21240 | GASKET | 40001- | |
| 17 | 01010-51025 | BOLT | 40001- | |
| 18 | 01602-21030 | WASHER,SPRING | 40001- | |
| 19 | 113-21-41250 | FILLER | 40001- | |
| 20 | 07000-03035 | O-RING | 40001- | |
| 21 | 01010-51030 | BOLT | 40001- | |
| 22 | 01602-21030 | WASHER,SPRING | 40001- | |
| 23 | 113-21-41260 | GAUGE | 40001- | |
| 24 | 07000-03022 | O-RING | 40001- | |
| 25 | 113-21-31270 | FILLER | 40001- | |
| 26 | 07000-03035 | O-RING | 40001- | |
| 27 | 01010-51030 | BOLT | 40001- | |
| 28 | 01602-21030 | WASHER,SPRING | 40001- | |
| 29 | 113-21-31260 | GAUGE | 40001- | |
| 30 | 07000-03022 | O-RING | 40001- | |
| 31 | 113-21-41280 | PLATE | 40001- | |
| 32 | 01010-51025 | BOLT | 40001- | |
| 33 | 01602-21030 | WASHER,SPRING | 40001- | |
| 34 | 01643-31032 | WASHER | 40001- | |
| 35 | 07283-23442 | CLIP | 40001- | |
| 36 | 01599-01011 | NUT | 40001- | |
| 37 | 01643-31032 | WASHER | 40001- |