| Узел | Модель |
| (057) - CONCAVE & CONCAVE CONTROL | (TR70) - TWIN ROTOR COMBINE (7/75-7/79) |
| (093) - CONCAVE GROUP, USED BSN 403000, TR75; 310400, TR85 | (TR75) - TWIN ROTOR COMBINE (7/79-7/85) |
| (094) - CONCAVE GROUP, USED ASN 403001, TR75; 310401, TR85 | (TR75) - TWIN ROTOR COMBINE (7/79-7/85) |
| (093) - CONCAVE GROUP, USED BSN 403000, TR75; 310400, TR85 | (TR85) - TWIN ROTOR COMBINE (7/79-7/84) |
| (094) - CONCAVE GROUP, USED ASN 403001, TR75; 310401, TR85 | (TR85) - TWIN ROTOR COMBINE (7/79-7/84) |
| (18.17) - HARD THRESH & CORN CONCAVE EXTENSIONS & DISTRIBUTION KITS | (TR89) - TWIN ROTOR COMBINE (1/99-) |
| (18A17) - HARD THRESH & ROUNDBAR CONCAVE EXTENSION | (TR98) - TWIN ROTOR COMBINE (7/96-) |
| (18.17) - HARD THRESH & CORN CONCAVE EXTENSIONS & DISTRIBUTION KITS | (TR99) - TWIN ROTOR COMBINE (1/99-) |