A 20-year-old car wash employee was fatally stabbed in the Bronx Sunday, cops said.

The part-time employee of Hand Jobs Inc. car wash in Edenwald was stabbed once in his left side on Bronxwood Avenue at 3 p.m., cops said.

Police responded for an assault and found the victim conscious on the sidewalk outside the car wash, police sources said.

He was rushed to Jacobi Hospital, where he later died, cops said.

No arrests have been made and the investigation is ongoing, cops said.