| Узел | Модель |
| (B01) - CRAWLER UNDERCARRIAGE AND ATTACHING PARTS (LESS HYDRAULICS) | (30EC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/65-12/79) |
| (B05) - TRACK ROLLER ASSEMBLY (GREASE) | (30EC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/65-12/79) |
| (B06) - LIFETIME LUBE TRACK ROLLER ASSEMBLY (OPTIONAL) | (30EC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/65-12/79) |
| (D06) - FUNCTION CONTROLS (CROWD, HOIST, SWING AND TOOL) | (30EC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/65-12/79) |
| (H07) - HYDRAULIC OIL RESERVOIR | (30EC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/65-12/79) |
| (H08) - HYDRAULIC MAIN PUMP (CLOCKWISE ROTATION) | (30EC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/65-12/79) |
| (B01) - CRAWLER UNDERCARRIAGE AND ATTACHING PARTS (LESS HYDRAULICS) | (30YC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/65-12/79) |
| (B05) - TRACK ROLLER ASSEMBLY (GREASE) | (30YC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/65-12/79) |
| (B06) - LIFETIME LUBE TRACK ROLLER ASSEMBLY (OPTIONAL) | (30YC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/65-12/79) |
| (D06) - FUNCTION CONTROLS (CROWD, HOIST, SWING AND TOOL) | (30YC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/65-12/79) |
| (H07) - HYDRAULIC OIL RESERVOIR | (30YC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/65-12/79) |
| (H08) - HYDRAULIC MAIN PUMP (CLOCKWISE ROTATION) | (30YC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/65-12/79) |
| (B01) - CRAWLER UNDERCARRIAGE AND ATTACHING PARTS (LESS HYDRAULICS) | (35EC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/68-12/77) |
| (B05) - TRACK ROLLER ASSEMBLY (GREASE) | (35EC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/68-12/77) |
| (B06) - LIFETIME LUBE TRACK ROLLER ASSEMBLY (OPTIONAL) | (35EC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/68-12/77) |
| (D06) - FUNCTION CONTROLS (CROWD, HOIST, SWING AND TOOL) | (35EC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/68-12/77) |
| (H07) - HYDRAULIC OIL RESERVOIR | (35EC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/68-12/77) |
| (H08) - HYDRAULIC MAIN PUMP (CLOCKWISE ROTATION) | (35EC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/68-12/77) |
| (B01) - CRAWLER UNDERCARRIAGE AND ATTACHING PARTS (LESS HYDRAULICS) | (35YC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/68-12/77) |
| (B05) - TRACK ROLLER ASSEMBLY (GREASE) | (35YC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/68-12/77) |
| (B06) - LIFETIME LUBE TRACK ROLLER ASSEMBLY (OPTIONAL) | (35YC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/68-12/77) |
| (D06) - FUNCTION CONTROLS (CROWD, HOIST, SWING AND TOOL) | (35YC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/68-12/77) |
| (H07) - HYDRAULIC OIL RESERVOIR | (35YC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/68-12/77) |
| (H08) - HYDRAULIC MAIN PUMP (CLOCKWISE ROTATION) | (35YC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/68-12/77) |
| (D07A) - FUNCTION CONTROLS, (CROWD, HOIST, SWING AND TOOL), (USED ON | (40EC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/71-12/79) |
| (H07) - HYDRAULIC OIL RESERVOIR | (40EC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/71-12/79) |
| (J04) - OPTIONAL DUAL CONTROL LINKAGE, (USED AS HOIST AND HYDRAULIC | (40EC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/71-12/79) |
| (D07A) - FUNCTION CONTROLS, (CROWD, HOIST, SWING AND TOOL), (USED ON | (40YC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/71-12/79) |
| (H07) - HYDRAULIC OIL RESERVOIR | (40YC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/71-12/79) |
| (J04) - OPTIONAL DUAL CONTROL LINKAGE, (USED AS HOIST AND HYDRAULIC | (40YC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/71-12/79) |
| (D06) - FUNCTIONAL CONTROLS FOR: CROWD, HOIST, SWING AND TOOL | (50) - DROTT SERIES-A CRAWLER EXCAVATOR (1/68-12/79) |
| (H03) - HYDRAULIC OIL RESERVOIR | (50) - DROTT SERIES-A CRAWLER EXCAVATOR (1/68-12/79) |