| Узел | Модель |
| (14) - PROPULSION CIRCUIT - WISCONSIN ENGINES | (L55) - DAVIS FLEETLINE 70+4 TRENCHER (1/70-12/79) |
| (08) - HYD SYS PROPULSION CIRCUIT, OIL COOLER CIRCUIT, TANDEM PUMP CIRCUIT (UP TO S/N 1107194) | (N63) - DAVIS MINI-SNEAKER CABLE LAYER (1/78-12/88) |
| (14) - HYDRAULIC SYSTEM, P.T.O., OIL COOLER, BOOM AND STEERING CIRCUITS | (P42) - DAVIS FLEETLINE 30+4 SUPER TRENCHER (1/72-12/84) |
| (15A) - HYDRAULIC SYSTEM, P.T.O., OIL COOLER, BOOM AND STEERING CIRCUITS | (P42) - DAVIS FLEETLINE 30+4 SUPER TRENCHER (1/72-12/84) |
| (14) - PROPULSION CIRCUIT - WISCONSIN ENGINES | (P55) - DAVIS FLEETLINE 70+4 TRENCHER (1/70-12/79) |
| (14) - HYDRAULIC SYSTEM, P.T.O., OIL COOLER, BOOM AND STEERING CIRCUITS | (P57) - DAVIS FLEETLINE 40+4 SUPER TRENCHER (1/72-12/86) |
| (15A) - HYDRAULIC SYSTEM, P.T.O., OIL COOLER, BOOM AND STEERING CIRCUITS | (P57) - DAVIS FLEETLINE 40+4 SUPER TRENCHER (1/72-12/86) |
| (08) - HYD SYS PROPULSION CIRCUIT, OIL COOLER CIRCUIT, TANDEM PUMP CIRCUIT (UP TO S/N 1107194) | (P63) - DAVIS MINI-SNEAKER CABLE LAYER (1/78-12/88) |
| (08) - HYD SYS PROPULSION CIRCUIT, OIL COOLER CIRCUIT, TANDEM PUMP CIRCUIT (UP TO S/N 1107194) | (T63) - DAVIS MINI-SNEAKER CABLE LAYER (1/78-12/86) |