Description
Genuine GM transmission fluid cooler line o-ring (GM part number 85630657) for the 2020-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P. A factory replacement part made to GM original equipment specifications.
- Genuine GM OEM part
- GM part number 85630657
Fits: 2020-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P