| Узел | Модель |
| (06) - HYDRAULIC SYSTEM - STEERING CIRCUIT | (30) - DAVIS FLEETHOE TRENCHER (1/70-12/80) |
| (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) |
| (38) - HYDRAULIC SYSTEM, LINE LAYER LIFT, WITH BACKFILL BLADE | (P42) - DAVIS FLEETLINE 30+4 SUPER TRENCHER (1/72-12/84) |
| (40) - HYDRAULIC SYSTEM, LINE LAYER LIFT, WITHOUT BACKFILL BLADE | (P42) - DAVIS FLEETLINE 30+4 SUPER TRENCHER (1/72-12/84) |
| (38) - HYDRAULIC SYSTEM, LINE LAYER LIFT, WITH BACKFILL BLADE | (P57) - DAVIS FLEETLINE 40+4 SUPER TRENCHER (1/72-12/86) |
| (40) - HYDRAULIC SYSTEM, LINE LAYER LIFT, WITHOUT BACKFILL BLADE | (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) |
| (5-08) - REAR STEERING HYDRAULIC CIRCUIT | (660) - CASE TRENCHER (1/86-12/03) |
| (08-138) - PLOW HYDRAULIC CIRCUIT, PLOW CONTROL VALVE TO PLOW CYLINDERS, PRIOR TO P.I.N. JAF0104938 | (760) - CASE TRENCHER (1/00-12/04) |
| (050) - STEERING HYDRAULIC CIRCUIT | (P60) - DAVIS FLEETLINE 30+4 TRENCHER (1/70-12/88) |
| (050) - STEERING HYDRAULIC CIRCUIT | (SD100) - DAVIS FLEETLINE 40+4 TRENCHER (1/70-12/86) |
| (092) - PLOW HYDRAULIC SYSTEM | (DH5) - CASE TRENCHER (1/77-12/80) |
| (3-14) - PLOW LIFT HYDRAULIC SYSTEM | (DH7) - CASE TRENCHER (1/79-12/82) |