| Узел | Модель |
| (08) - HYDRAULIC SYSTEM - PROPULSION CIRCUIT | (30) - DAVIS FLEETHOE TRENCHER (1/70-12/80) |
| (42) - HYDRA-BORE ATTACHMENT | (DAVIS) - FLEETLINE 16+4 TRENCHER (1/76-12/82) |
| (12) - HYDRAULIC SYSTEM, PROPULSION CIRCUIT | (DAVIS) - FLEETLINE 25+4 TRENCHER (1/76-12/78) |
| (10) - HYDRAULIC SYSTEM, PROPULSION CIRCUIT, TANDEM PUMP CIRCUIT ( SERIAL NO. 1107194 AND UP) | (N63) - DAVIS MINI-SNEAKER CABLE LAYER (1/78-12/88) |
| (10) - HYDRAULIC SYSTEM, PROPULSION CIRCUIT, TANDEM PUMP CIRCUIT ( SERIAL NO. 1107194 AND UP) | (P63) - DAVIS MINI-SNEAKER CABLE LAYER (1/78-12/88) |
| (10) - HYDRAULIC SYSTEM, PROPULSION CIRCUIT, TANDEM PUMP CIRCUIT ( SERIAL NO. 1107194 AND UP) | (T63) - DAVIS MINI-SNEAKER CABLE LAYER (1/78-12/86) |
| (08-004) - BASIC HYDRAULIC CIRCUIT, MODELS WITH ELECTRONIC STEERING, PRIOR TO P.I.N. JAF0003171 | (760) - CASE TRENCHER (1/00-12/04) |
| (08-014) - BASIC HYD. CIRCUIT, PRIORITY VALVE OUT, MODELS W/O ELECTRONIC STEERING, PRIOR TO P.I.N. JAF0003171 | (760) - CASE TRENCHER (1/00-12/04) |
| (08-124) - HYDRA-BORER HYDRAULIC CIRCUIT, CONTROL VALVE TO HYDRA-BORER MOTOR AND RETURN LINES | (760) - CASE TRENCHER (1/00-12/04) |
| (090) - HYDROSTATIC PROPULSION SUCTION AND DRAIN CIRCUIT, USED ON 30+4 SERIAL NUMBER 1139802 AND AFTER | (P60) - DAVIS FLEETLINE 30+4 TRENCHER (1/70-12/88) |
| (1-58) - PROPULSION HYDRAULIC SYSTEM | (DH4) - CASE TRENCHER W/2.1L ENGINE (1/79-12/88) |
| (1-50) - MONO-STICK STEERING PUMP SUPPLY AND RETURN LINES | (DH4) - CASE TRENCHER W/2.1L ENGINE (1/79-12/88) |
| (6-144) - GROUND DRIVE HYDRAULIC SYSTEM | (DH4B) - CASE TRENCHER (1/79-12/91) |
| (1-58) - PROPULSION HYDRAULIC SYSTEM | (DH4B) - CASE TRENCHER W/2.1L ENGINE (1/79-12/91) |
| (1-50) - MONO-STICK STEERING PUMP SUPPLY AND RETURN LINES | (DH4B) - CASE TRENCHER W/2.1L ENGINE (1/79-12/91) |
| (6-090) - GROUND DRIVE HYDRAULIC SYSTEM | (CASE) - MAXI-SNEAKER CABLE LAYER (1/83-12/86) |
| (6-02) - GROUND DRIVE HYDRAULIC CIRCUIT, USED ON MODELS PRIOR TO P.I.N. 1214519 | (MAXI-SNEAKER C) - 25+4XP TRENCHER (1/90-12/92) |
| (6-04) - GROUND DRIVE HYDRAULIC CIRCUIT, P.I.N. 1214519 AND AFTER | (MAXI-SNEAKER C) - 25+4XP TRENCHER (1/90-12/92) |
| (8-12) - BACKFILL BLADE HYDRAULIC CIRCUIT, USED ON MODELS WITHOUT BACKHOE | (MAXI-SNEAKER C) - 25+4XP TRENCHER (1/90-12/92) |
| (1-30) - PROPULSION HYDRAULIC SYSTEM | (CASE) - SERIES-B MINI-SNEAKER CABLE LAYER (1/78-12/86) |