| Узел | Модель |
| (14) - HYDRAULIC SYSTEM, P.T.O., OIL COOLER, BOOM AND STEERING CIRCUITS | (P42) - DAVIS FLEETLINE 30+4 SUPER TRENCHER (1/72-12/84) |
| (14) - HYDRAULIC SYSTEM, P.T.O., OIL COOLER, BOOM AND STEERING CIRCUITS | (P57) - DAVIS FLEETLINE 40+4 SUPER TRENCHER (1/72-12/86) |
| (168) - STEERING & EQUIPMENT PUMP HYDRAULIC CIRCUIT, SUCTION TO RESERVOIR, USED ON 30+4 S/N 5210 TO 1139802 | (P60) - DAVIS FLEETLINE 30+4 TRENCHER (1/70-12/88) |
| (172) - STEERING AND EQUIPMENT PUMP HYDRAULIC CIRCUIT, USED ON 30+4 SPECIAL SERIAL NUMBER 3751 TO 1140302 | (P60) - DAVIS FLEETLINE 30+4 TRENCHER (1/70-12/88) |
| (168) - STEERING & EQUIPMENT PUMP HYDRAULIC CIRCUIT, SUCTION TO RESERVOIR, USED ON 30+4 S/N 5210 TO 1139802 | (SD100) - DAVIS FLEETLINE 40+4 TRENCHER (1/70-12/86) |