| № | Номер | Название | Опции | Альт |
| L100803 | TRANSMISSION | ASSEMBLY - complete for W18B, Allison No. 6885698, parts list Figures 6-14 through 6-34, Includes: Ref. 1 - 14 | |
| L100804 | TRANSMISSION | ASSEMBLY - complete for W20C, Allison No. 23010700, parts list Figures 6-14 through 6-34, no longer available, order L126396 transmission below, Includes: Ref. 1 - 14 | |
| L113717 | TRANSMISSION | ASSEMBLY - complete for W20C, Allison No. 23019621, parts list Figures 6-14 through 6-34, no longer available, order L126396 transmission below, Includes: Ref. 1 - 14 | |
| L126396 | TRANSMISSION | ASSEMBLY - complete for W20C, Twin Disc No. N66536, parts list Figures 6-14 through 6-34, Includes: Ref. 1 - 17 | |
| 1 | 413-632 | BOLT,Hex, 3/8" - 16 x 2", Gr 5 | | |
| 2 | 13-648 | BOLT,Hex, 3/8" - 16 x 3", Gr 5 | - hex head, 3/8" - 16 NC x 3" | |
| 3 | 92-6 | LOCK WASHER,3/8" | | |
| 4 | L31081 | GASKET | -, Serial Range: pump-housing | |
| 5 | N6876 | SEAL,39.88mm ID x 62.05mm OD x 8.41mm Thk | OIL SEAL - pump, not used with L126396 transmission, see Ref. 15, 16 & 17 below | |
| 6 | N7770 | PUMP,53.57 CC | - transmission and torque converter charging | |
| 7 | NSS | NOT SOLD SEPARAT | HOUSING - pump | |
| 8 | L31168 | PIN | DOWEL PIN - pump, Serial Range: housing-cover | |
| 9 | NSS | NOT SOLD SEPARAT | SHAFT - driven gear | |
| 10 | T32720 | BEARING | ROLLER BEARING - shaft, if used | |
| 11 | NSS | NOT SOLD SEPARAT | DRIVEN GEAR - pump | |
| 12 | NSS | NOT SOLD SEPARAT | DRIVE GEAR - pump | |
| 13 | P0031037L | BALL | - pump, Serial Range: housing-cover | |
| 14 | D72787 | COVER | - pump | |
| 15 | L126293 | GASKET | - plate to charging pump | |
| | Used with L126396 transmission only. | | |
| 16 | L126294 | PLATE ASSY. | PLATE - spline, charging pump to hydraulic pump | |
| | Used with L126396 transmission only. | | |
| 17 | L126295 | GASKET | - plate to main hydraulic pump | |
| | Used with L126396 transmission only. | | |