| Countershaft | ZTC-0844 | Volvo | Gearbox > Countershaft |
| Counter Shaft | ZTC-0900 | Renault, Volvo | Gearbox > Countershaft |
| Gear, Countershaft | ZTC-1253 | Volvo | Gearbox > Countershaft |
| Roller Bearing | ZTC-1265 | Iveco, Man, Mercedes, Renault, SAF, Scania, Volvo | Gearbox > Countershaft |
| Gear | ZTC-1270 | Volvo | Gearbox > Countershaft |
| Needle Bearing | ZTC-1275 | Man, Mercedes, Renault, Volvo, VW | Gearbox > Countershaft |
| Gear 3rd | ZTC-1383 | Volvo | Gearbox > Countershaft |
| Gear Splitter | ZTC-1384 | Renault, Volvo | Gearbox > Countershaft |
| Gear Splitter | ZTC-1385 | Renault, Volvo | Gearbox > Countershaft |
| Gear Splitter | ZTC-1398 | Renault, Volvo | Gearbox > Countershaft |
| Gear | ZTC-1399 | Renault, Volvo | Gearbox > Countershaft |
| Gear | ZTC-1419 | Volvo | Gearbox > Countershaft |