| Part | Manufacturer | OEM Part # | Price | Notes |
| Fluid Pan Gasket |
| THM-700-R4 (4L60-4L60E) |
| Gasket | GMO | 8654799 | 9.42 | Contact Dealer for most current part and price information. |
| 4L80E |
| Oil Pan Gasket | GMO | 8677743 | 58.92 | |
| Valve Body Gasket Kit |
| 4L80E |
| Gasket, Valve Body to Spacer Plate | GMO | 24201115 | 8.48 | |
| Pan Gasket |
| Thmr-2/4L80E | GMO | 8677743 | 58.92 | |
| 4L60E, Electronic | GMO | 8654799 | 9.42 | Contact Dealer for most current part and price information. |
| Extension Housing Seal |
| THM-700-R4 (4L60-4L60E) |
| Seal | GMO | 8673526 | 8.55 | Order Number & Color |
| 4L80E |
| Extension Housing Seal | GMO | 24236132 | 8.64 | Order By Description. |
| Extension Housing Gasket |
| THM-700-R4 (4L60-4L60E) |
| Seal | GMO | 1358899 | 2.89 | |
| 4L80E |
| Seal, Extension to Case | GMO | 8681168 | 8.25 | |
| Torque Converter Seal |
| THM-700-R4 (4L60-4L60E) |
| Seal |
| See Oil Pump. |
| 4L80E |
| Seal | GMO | 8661760 | 8.44 | |
| Gasket & Seal Kit |
| THM-700-R4 (4L60-4L60E) | GMO | 24236378 | 163.47 | Part of Gasket Kit. |
| 4L80E | GMO | 24202111 | 151.82 | Contact Dealer for most current part and price information. |