| Узел | Модель |
| (24) - HYDRAULIC LINES - BOOM & TILT CIRCUIT, (UP TO SPEC. #P16WS04, P16FG05, P16FD06) | (1000) - DAVIS TASKFORCE SUPER TRENCHER (1/72-12/81) |
| (70) - HYDRAULIC LINES - BACKFILL BLADE, (UP TO SPEC. #P16WS10, P16WS10, P16FD12) | (1000) - DAVIS TASKFORCE SUPER TRENCHER (1/72-12/81) |
| (72) - HYDRAULIC LINES - BACKFILL BLADE, (SPEC. #P16WS10, P16FG11, P16FD12 & UP) | (1000) - DAVIS TASKFORCE SUPER TRENCHER (1/72-12/81) |
| (24) - BASIC HYDRAULIC CIRCUIT W/O ATTACHMENTS | (L55) - DAVIS FLEETLINE 70+4 TRENCHER (1/70-12/79) |
| (34) - PTO CIRCUIT - T-70 TRENCHER ATTACHMENT, SPEC. # 7055-3001 TO 7055-3067 | (L55) - DAVIS FLEETLINE 70+4 TRENCHER (1/70-12/79) |
| (36) - PTO CIRCUIT - T-70 TRENCHER ATTACHMENT, SPEC. # 7055-3067 & UP | (L55) - DAVIS FLEETLINE 70+4 TRENCHER (1/70-12/79) |
| (52) - P-80 LINE-LAYER LEFT CIRCUIT, MOTOR CONTROL VALVE, & PUMP ASSEMBLIES | (L55) - DAVIS FLEETLINE 70+4 TRENCHER (1/70-12/79) |
| (64) - REEL CARRIER ATTACHMENT, LIFT CYLINDER ASSEMBLY | (L55) - DAVIS FLEETLINE 70+4 TRENCHER (1/70-12/79) |
| (68) - HYDRAULIC BACKFILL BLADE & CYLINDER ASSEMBLIES | (L55) - DAVIS FLEETLINE 70+4 TRENCHER (1/70-12/79) |
| (12) - HYD SYS, LINE-LAYER MOTOR CIRCUIT, LINE-LAYER LIFT & STEERING CIRCUIT (UP TO S/N 1107194) | (N63) - DAVIS MINI-SNEAKER CABLE LAYER (1/78-12/88) |
| (14) - HYD SYS, LINE-LAYER MOTOR CIRCUIT, LINE-LAYER LIFT & STEERING CIRCUIT (SERIAL NO. 1107194 & UP) | (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) |
| (36) - HYDRAULIC SYSTEM, ANGLE DOZER, ANGLE CYLINDER ASSEMBLY | (P42) - DAVIS FLEETLINE 30+4 SUPER TRENCHER (1/72-12/84) |
| (24) - BASIC HYDRAULIC CIRCUIT W/O ATTACHMENTS | (P55) - DAVIS FLEETLINE 70+4 TRENCHER (1/70-12/79) |
| (34) - PTO CIRCUIT - T-70 TRENCHER ATTACHMENT, SPEC. # 7055-3001 TO 7055-3067 | (P55) - DAVIS FLEETLINE 70+4 TRENCHER (1/70-12/79) |
| (36) - PTO CIRCUIT - T-70 TRENCHER ATTACHMENT, SPEC. # 7055-3067 & UP | (P55) - DAVIS FLEETLINE 70+4 TRENCHER (1/70-12/79) |
| (52) - P-80 LINE-LAYER LEFT CIRCUIT, MOTOR CONTROL VALVE, & PUMP ASSEMBLIES | (P55) - DAVIS FLEETLINE 70+4 TRENCHER (1/70-12/79) |
| (64) - REEL CARRIER ATTACHMENT, LIFT CYLINDER ASSEMBLY | (P55) - DAVIS FLEETLINE 70+4 TRENCHER (1/70-12/79) |
| (68) - HYDRAULIC BACKFILL BLADE & CYLINDER ASSEMBLIES | (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) |
| (36) - HYDRAULIC SYSTEM, ANGLE DOZER, ANGLE CYLINDER ASSEMBLY | (P57) - DAVIS FLEETLINE 40+4 SUPER TRENCHER (1/72-12/86) |
| (12) - HYD SYS, LINE-LAYER MOTOR CIRCUIT, LINE-LAYER LIFT & STEERING CIRCUIT (UP TO S/N 1107194) | (P63) - DAVIS MINI-SNEAKER CABLE LAYER (1/78-12/88) |
| (14) - HYD SYS, LINE-LAYER MOTOR CIRCUIT, LINE-LAYER LIFT & STEERING CIRCUIT (SERIAL NO. 1107194 & UP) | (P63) - DAVIS MINI-SNEAKER CABLE LAYER (1/78-12/88) |
| (12) - HYD SYS, LINE-LAYER MOTOR CIRCUIT, LINE-LAYER LIFT & STEERING CIRCUIT (UP TO S/N 1107194) | (T63) - DAVIS MINI-SNEAKER CABLE LAYER (1/78-12/86) |
| (14) - HYD SYS, LINE-LAYER MOTOR CIRCUIT, LINE-LAYER LIFT & STEERING CIRCUIT (SERIAL NO. 1107194 & UP) | (T63) - DAVIS MINI-SNEAKER CABLE LAYER (1/78-12/86) |