renault h4d

Engines used by French automaker Renault SA have historically been referenced in technical specifications along two distinct systems:
The numeric engine referencing system used until the mid-1980s was simply the chronological sequence of engine development projects. Thus, variants based on the same engine block may have unrelated numbers.
The system in use since the mid-1980s is of the format XnY-zzz where
The A engine was an all-aluminum overhead valve inline-four designed in the mid-1960s for the Renault 16 and produced in three variants:....