| Узел | Модель |
| (320) - LINE LAYER HYDRAULIC SUCTION AND RETURN CIRCUIT, USED BEFORE 30+4 S/N 4700 AND BEFORE 40+4 S/N 3600 | (P60) - DAVIS FLEETLINE 30+4 TRENCHER (1/70-12/88) |
| (322) - LINE LAYER HYD. SUCTION & RETURN CIRCUIT, USED ON 30+4 S/N 4700 TO 5465 & ON 40+4 S/N 3600 TO 4045 | (P60) - DAVIS FLEETLINE 30+4 TRENCHER (1/70-12/88) |
| (324) - LINE LAYER HYDRAULIC SUCTION AND RETURN CIRCUIT | (P60) - DAVIS FLEETLINE 30+4 TRENCHER (1/70-12/88) |
| (326) - LINE LAYER HYDRAULIC SUCTION AND RETURN CIRCUIT | (P60) - DAVIS FLEETLINE 30+4 TRENCHER (1/70-12/88) |
| (328) - LINE LAYER HYDRAULIC SUCTION AND RETURN CIRCUIT, USED BEFORE 30+4 SPECIAL SERIAL NUMBER 3751 | (P60) - DAVIS FLEETLINE 30+4 TRENCHER (1/70-12/88) |
| (330) - LINE LAYER HYDRAULIC SUCTION AND RETURN CIRCUIT, USED ON 30+4 SPECIAL SERIAL NUMBER 3751 TO 3761 | (P60) - DAVIS FLEETLINE 30+4 TRENCHER (1/70-12/88) |
| (332) - LINE LAYER HYDRAULIC SUCTION AND RETURN CIRCUIT, USED ON 30+4 SPECIAL SERIAL NUMBER 3761 AND AFTER | (P60) - DAVIS FLEETLINE 30+4 TRENCHER (1/70-12/88) |
| (386) - HYDRA-BORER PUMP, PRESSURE, AND RETURN HYDRALIC CIRCUIT, MUST USE A STANDARD BACKFILL BLADE | (P60) - DAVIS FLEETLINE 30+4 TRENCHER (1/70-12/88) |
| (388) - HYDRA-BORER PUMP, PRESSURE, AND RETURN HYDRAULIC CIRCUIT | (P60) - DAVIS FLEETLINE 30+4 TRENCHER (1/70-12/88) |
| (396) - HYDRA-BORER PUMP, PRESSURE, AND RETURN HYDRAULIC CIRCUIT, USED WITHOUT LINE LAYER & WITHOUT BACKHOE | (P60) - DAVIS FLEETLINE 30+4 TRENCHER (1/70-12/88) |
| (398) - HYDRA-BORER PUMP, PRESSURE, AND RETURN HYDRAULIC CIRCUIT, USED WITHOUT LINE LAYER & WITHOUT BACKHOE | (P60) - DAVIS FLEETLINE 30+4 TRENCHER (1/70-12/88) |
| (440) - BACKHOE PUMP, PRESSURE, AND RETURN HYDRAULIC CIRCUIT, USED WITH H560292 BACKHOE VALVE | (P60) - DAVIS FLEETLINE 30+4 TRENCHER (1/70-12/88) |
| (442) - BACKHOE PUMP, PRESSURE, AND RETURN HYDRAULIC CIRCUIT, USED WITH H588566 BACKHOE VALVE | (P60) - DAVIS FLEETLINE 30+4 TRENCHER (1/70-12/88) |
| (171A) - STEERING & EQUIP. PUMP HYD. CIRCUIT, DEUTZ DIESEL ENG. W/ DUAL PUMP, USED ON 30+4 S/N 123821 & AFTER | (P60) - DAVIS FLEETLINE 30+4 TRENCHER (1/70-12/88) |
| (320) - LINE LAYER HYDRAULIC SUCTION AND RETURN CIRCUIT, USED BEFORE 30+4 S/N 4700 AND BEFORE 40+4 S/N 3600 | (SD100) - DAVIS FLEETLINE 40+4 TRENCHER (1/70-12/86) |
| (322) - LINE LAYER HYD. SUCTION & RETURN CIRCUIT, USED ON 30+4 S/N 4700 TO 5465 & ON 40+4 S/N 3600 TO 4045 | (SD100) - DAVIS FLEETLINE 40+4 TRENCHER (1/70-12/86) |
| (324) - LINE LAYER HYDRAULIC SUCTION AND RETURN CIRCUIT | (SD100) - DAVIS FLEETLINE 40+4 TRENCHER (1/70-12/86) |
| (326) - LINE LAYER HYDRAULIC SUCTION AND RETURN CIRCUIT | (SD100) - DAVIS FLEETLINE 40+4 TRENCHER (1/70-12/86) |
| (328) - LINE LAYER HYDRAULIC SUCTION AND RETURN CIRCUIT, USED BEFORE 30+4 SPECIAL SERIAL NUMBER 3751 | (SD100) - DAVIS FLEETLINE 40+4 TRENCHER (1/70-12/86) |
| (330) - LINE LAYER HYDRAULIC SUCTION AND RETURN CIRCUIT, USED ON 30+4 SPECIAL SERIAL NUMBER 3751 TO 3761 | (SD100) - DAVIS FLEETLINE 40+4 TRENCHER (1/70-12/86) |
| (332) - LINE LAYER HYDRAULIC SUCTION AND RETURN CIRCUIT, USED ON 30+4 SPECIAL SERIAL NUMBER 3761 AND AFTER | (SD100) - DAVIS FLEETLINE 40+4 TRENCHER (1/70-12/86) |
| (386) - HYDRA-BORER PUMP, PRESSURE, AND RETURN HYDRALIC CIRCUIT, MUST USE A STANDARD BACKFILL BLADE | (SD100) - DAVIS FLEETLINE 40+4 TRENCHER (1/70-12/86) |
| (388) - HYDRA-BORER PUMP, PRESSURE, AND RETURN HYDRAULIC CIRCUIT | (SD100) - DAVIS FLEETLINE 40+4 TRENCHER (1/70-12/86) |
| (396) - HYDRA-BORER PUMP, PRESSURE, AND RETURN HYDRAULIC CIRCUIT, USED WITHOUT LINE LAYER & WITHOUT BACKHOE | (SD100) - DAVIS FLEETLINE 40+4 TRENCHER (1/70-12/86) |
| (398) - HYDRA-BORER PUMP, PRESSURE, AND RETURN HYDRAULIC CIRCUIT, USED WITHOUT LINE LAYER & WITHOUT BACKHOE | (SD100) - DAVIS FLEETLINE 40+4 TRENCHER (1/70-12/86) |
| (440) - BACKHOE PUMP, PRESSURE, AND RETURN HYDRAULIC CIRCUIT, USED WITH H560292 BACKHOE VALVE | (SD100) - DAVIS FLEETLINE 40+4 TRENCHER (1/70-12/86) |
| (442) - BACKHOE PUMP, PRESSURE, AND RETURN HYDRAULIC CIRCUIT, USED WITH H588566 BACKHOE VALVE | (SD100) - DAVIS FLEETLINE 40+4 TRENCHER (1/70-12/86) |
| (171A) - STEERING & EQUIP. PUMP HYD. CIRCUIT, DEUTZ DIESEL ENG. W/ DUAL PUMP, USED ON 30+4 S/N 123821 & AFTER | (SD100) - DAVIS FLEETLINE 40+4 TRENCHER (1/70-12/86) |