A+
The part is an original spare part that has recently been replaced. The part is in better than expected condition considering the age and mileage of the vehicle. The part has been checked and tested. It can be mounted on the vehicle in its existing condition.
A
The spare part is a checked and tested part without any complaints. The part represents the age and mileage of the vehicle and can be used without any action.
A*
Detail with reservation. Information about the spare part should clearly describe the part's defects or deficiencies.
M
Environmental parts can mostly be used without any action. The spare part has traveled more miles than the average vehicle of the same model year. Information about the spare part should clearly describe any defects or deficiencies in the part.