The Mercedes-Benz 350SL uses an H5001 bulb size for high beam headlights and an H5006 bulb size for low beam headlights. The replacement chart covers 1972 to 1973 model years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Mercedes-Benz 350SL uses two distinct sealed beam types across its headlight system: the H5001 for high beam and the H5006 for low beam, both fitted across the 1972-1973 model years.
Both the H5001 and H5006 are ANSI-standardized sealed beam units approved for use in the United States and Canada, operating on a 12-volt electrical system.
The H5001 is a 4-inch square sealed beam unit, while the H5006 is a 5.75-inch round sealed beam unit. The differing shapes and sizes mean the two types are not interchangeable with each other.
As sealed beam units, neither the H5001 nor the H5006 contains a replaceable bulb element. When a unit fails, the entire assembly is replaced rather than an internal component.
The square profile of the H5001 and the round profile of the H5006 reflect a common North American headlight configuration of the era, where separate sealed beam units handled distinct beam functions within the same housing arrangement.