| Узел | Модель |
| (454) - BACKHOE HYDRAULIC CIRCUIT, BOOM, DIPPER, AND BUCKET, USED BEFORE BACKHOE SERIAL NUMBER 1515103 | (P60) - DAVIS FLEETLINE 30+4 TRENCHER (1/70-12/88) |
| (456) - BACKHOE HYDRAULIC CIRCUIT, BOOM, DIPPER, AND BUCKET, USED ON BACKHOE SERIAL NUMBER 1515103 AND AFTER | (P60) - DAVIS FLEETLINE 30+4 TRENCHER (1/70-12/88) |
| (454) - BACKHOE HYDRAULIC CIRCUIT, BOOM, DIPPER, AND BUCKET, USED BEFORE BACKHOE SERIAL NUMBER 1515103 | (SD100) - DAVIS FLEETLINE 40+4 TRENCHER (1/70-12/86) |
| (456) - BACKHOE HYDRAULIC CIRCUIT, BOOM, DIPPER, AND BUCKET, USED ON BACKHOE SERIAL NUMBER 1515103 AND AFTER | (SD100) - DAVIS FLEETLINE 40+4 TRENCHER (1/70-12/86) |
| (5-24) - BACKHOE SWING & STABILIZER HYDRAULIC SYSTEM - REAR MOUNTED | (DH4) - CASE TRENCHER W/1.8L DIESEL ENGINE (1/79-12/88) |
| (5-28) - BACKHOE CONTROL VALVE HYDRAULIC SYSTEM - REAR MOUNTED | (DH4) - CASE TRENCHER W/1.8L DIESEL ENGINE (1/79-12/88) |
| (5-28) - BACKHOE SWING AND STABILIZER HYDRAULIC SYSTEM - REAR MOUNTED | (DH4) - CASE TRENCHER W/2.1L ENGINE (1/79-12/88) |
| (5-32) - BACKHOE CONTROL VALVE HYDRAULIC SYSTEM - REAR MOUNTED | (DH4) - CASE TRENCHER W/2.1L ENGINE (1/79-12/88) |
| (8-292) - SWING AND STABILIZER HYDRAULIC CIRCUIT, REAR MOUNTED BACKHOE - HORIZONTAL VALVE | (DH4B) - CASE TRENCHER (1/79-12/91) |
| (8-302) - BOOM CYLINDER HYDRAULIC CIRCUIT, REAR MOUNTED D100 BACKHOE - HORIZONTAL CONTROL VALVE | (DH4B) - CASE TRENCHER (1/79-12/91) |
| (8-308) - BOOM CYLINDER HYDRAULIC CIRCUIT, REAR D100XR BACKHOE - HORIZONTAL CONTROL VALVE | (DH4B) - CASE TRENCHER (1/79-12/91) |
| (8-314) - DIPPER CYLINDER HYDRAULIC CIRCUIT, REAR MOUNTED D100 BACKHOE - HORIZONTAL CONTROL VALVE | (DH4B) - CASE TRENCHER (1/79-12/91) |
| (8-320) - DIPPER CYLINDER HYDRAULIC CIRCUIT, REAR D100XR BACKHOE - HORIZONTAL CONTROL VALVE | (DH4B) - CASE TRENCHER (1/79-12/91) |
| (8-326) - BUCKET CYLINDER HYDRAULIC CIRCUIT, REAR MOUNTED D100 BACKHOE - HORIZONTAL CONTROL VALVE | (DH4B) - CASE TRENCHER (1/79-12/91) |
| (8-332) - BUCKET CYLINDER HYDRAULIC CIRCUIT, REAR MOUNTED D100XR BACKHOE - HORIZONTAL CONTROL VALVE | (DH4B) - CASE TRENCHER (1/79-12/91) |
| (5-28) - BACKHOE SWING AND STABILIZER HYDRAULIC SYSTEM - REAR MOUNTED | (DH4B) - CASE TRENCHER W/2.1L ENGINE (1/79-12/91) |
| (5-32) - BACKHOE CONTROL VALVE HYDRAULIC SYSTEM - REAR MOUNTED | (DH4B) - CASE TRENCHER W/2.1L ENGINE (1/79-12/91) |
| (5-26) - BACKHOE SWING & STABILIZER HYDRAULIC SYSTEM -, REAR MOUNTED | (DH5) - CASE TRENCHER (S/N 1187961 & AFTER) (1/80-12/86) |
| (5-30) - BACKHOE CONTROL VALVE HYDRAULIC SYSTEM - REAR MOUNTED | (DH5) - CASE TRENCHER (S/N 1187961 & AFTER) (1/80-12/86) |
| (3-18) - BACKHOE SWING & STABILIZER HYDRAULIC SYSTEM - REAR MOUNTED | (FH4) - CASE TRENCHER W/LOADER BACKHOE (1/82-12/82) |
| (3-20) - BACKHOE CONTROL VALVE HYDRAULIC SYSTEM - REAR MOUNTED | (FH4) - CASE TRENCHER W/LOADER BACKHOE (1/82-12/82) |