| Узел | Модель |
| (190) - CHECK VALVE, (USED IN TRACK DRIVE MOTOR DRAIN CIRCUIT) | (35) - DROTT SERIES-D CRAWLER EXCAVATOR (S/N 6266131 & AFTER) (7/77-12/81) |
| (147) - CHECK VALVE, (USED IN TRACK DRIVE MOTOR DRAIN CIRCUIT) | (35EC) - DROTT SERIES-B CRAWLER EXCAVATOR (1/69-12/77) |
| (147) - CHECK VALVE, (USED IN TRACK DRIVE MOTOR DRAIN CIRCUIT) | (35YC) - DROTT SERIES-B CRAWLER EXCAVATOR (1/69-12/77) |
| (246) - CHECK VALVE, (USED IN TRACK DRIVE MOTOR DRAIN CIRCUIT) | (40BLC) - DROTT SERIES-B FELLER/BUNCHER CRAWLER EXCAVATOR (1/71-12/84) |
| (H38) - CHECK VALVE FOR:, DRIVE MOTOR HYDRAULIC CIRCUIT | (40EC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/71-12/79) |
| (155) - CHECK VALVE, (USED IN TRACK DRIVE MOTOR DRAIN CIRCUIT) | (40EC) - DROTT SERIES-B CRAWLER EXCAVATOR (1/71-12/84) |
| (H38) - CHECK VALVE FOR:, DRIVE MOTOR HYDRAULIC CIRCUIT | (40YC) - DROTT SERIES-A CRAWLER EXCAVATOR (1/71-12/79) |
| (155) - CHECK VALVE, (USED IN TRACK DRIVE MOTOR DRAIN CIRCUIT) | (40YC) - DROTT SERIES-B CRAWLER EXCAVATOR (1/71-12/84) |
| (122) - CHECK VALVE, (USED IN TRACK DRIVE MOTOR DRAIN CIRCUIT) | (50) - DROTT SERIES-B CRAWLER EXCAVATOR (S/N 550 & AFTER) (1/72-12/88) |
| (240) - CHECK VALVE, (USED IN TRACK DRIVE MOTOR DRAIN CIRCUIT)(USED ON UNITS W/ SN. 6279926-6280258) | (50) - DROTT SERIES-D CRAWLER EXCAVATOR (S/N 6279926 & AFTER) (1/76-12/80) |