| Part | Manufacturer | OEM Part # | Price | Notes |
| Drive Link Assembly |
| THM-125C/3T40 |
| Drive Link | GMO | 24218281 | 150.71 | Contact Dealer for most current part and price information. |
| Drive Sprocket |
| THM-125C/3T40 |
| 33 Teeth | GMO | 8643209 | 133.89 | Contact Dealer for most current part and price information. |
| 35 Teeth | GMO | 8643210 | 131.84 | |
| Sprocket Support (W/Bearing) |
| THM-125C/3T40 | GMO | 24212471 | 159.54 | |
| Driven Sprocket |
| THM-125C/3T40 |
| 35 Teeth | GMO | 8643223 | 132.56 | Contact Dealer for most current part and price information. |
| 37 Teeth | GMO | 8643224 | 134.30 | |
| Support |
| THM-125C/3T40 | GMO | 24205838 | 200.88 | |