| Part | Manufacturer | OEM Part # | Price | Notes |
| Intermediate Clutch Piston |
| THM 250, 250C, 350 & 350C | GMO | 1246318 | 0.00 | |
| Seat Assembly, With Springs |
| THM 250, 250C, 350 & 350C | GMO | 1243126 | 8.72 | Contact Dealer for most current part and price information. |
| Spacer |
| THM 250, 250C, 350 & 350C | GMO | 332505 | 1.75 | Contact Dealer for most current part and price information. |
| Thrust Bearing |
| THM 250, 250C, 350 & 350C | GMO | 9436851 | 8.32 | |
| Cushion Spring |
| THM 250, 250C, 350 & 350C | GMO | 1243139 | 10.38 | |
| Inter Clutch Reaction Plate |
| THM 250, 250C, 350 & 350C | GMO | 8640672 | 0.00 | |
| Pressure Plate |
| THM 250, 250C, 350 & 350C | GMO | 8640673 | 0.00 | Order by thickness |
| Retainer Ring |
| THM 250, 250C, 350 & 350C | GMO | 6261038 | 0.00 | |
| Retainer |
| THM 250, 250C, 350 & 350C | GMO | 6261143 | 0.00 | |
| Outer Race |
| THM 250, 250C, 350 & 350C | GMO | 6261021 | 0.00 | |
| Overrunning Clutch |
| THM 250, 250C, 350 & 350C | GMO | 7471025 | 55.02 | Order By Thickness. |
| Clutch Cam |
| THM 250, 250C, 350 & 350C | GMO | 6260318 | 0.00 | |