| Узел | Модель |
| (040) - COUNTERWEIGHTS, FRONT MOUNTED COUNTERWEIGHT, (MODEL 310G CRAWLER ONLY) | (33) - BACKHOE FOR 310G AND 450 CRAWLER (1/66-12/71) |
| (118) - COUNTERWEIGHTS, 310G, 350 & 450 CRAWLERS, FRONT MOUNTED COUNTERWEIGHT, MDL. 310G & 350 CRAWLERS ONLY | (26) - BACKHOE (1/65-12/75) |
| (118) - COUNTERWEIGHTS, 310G, 350 & 450 CRAWLERS, FRONT MOUNTED COUNTERWEIGHT, MDL. 310G & 350 CRAWLERS ONLY | (26B) - BACKHOE (1/65-12/75) |
| (118) - COUNTERWEIGHTS, 310G, 350 & 450 CRAWLERS, FRONT MOUNTED COUNTERWEIGHT, MDL. 310G & 350 CRAWLERS ONLY | (26S) - BACKHOE (1/65-12/75) |
| (232[1]) - FRONT COUNTERWEIGHTS FOR BACKHOE | (310F) - CASE CRAWLER TRACTOR (S/N 3019001 TO 3023000) (1/63-12/64) |
| (280[1]) - FRONT COUNTERWEIGHTS FOR BACKHOE | (310G) - CASE CRAWLER TRACTOR (S/N 3023001 TO 3032301) (1/64-12/69) |
| (147A[1]) - FRONT COUNTERWEIGHTS FOR BACKHOE | (310G) - CASE CRAWLER TRACTOR (S/N 3032301 TO 3039619) (1/67-12/69) |
| (400) - FRONT COUNTERWEIGHTS, BACKHOE MODELS | (350) - CASE CRAWLER TRACTOR (1/70-12/80) |