The Pontiac Tempest uses an H5001 bulb size for high beam headlights and an H5006 bulb size for low beam headlights. The replacement chart covers vehicle production years spanning 1961 to 1970 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 Pontiac Tempest uses the H5001 sealed beam unit for high beam headlights across all model years from 1961-1970.
The H5001 is a 4-inch square sealed beam unit rated at 12V and built to the ANSI standard recognized in the US and Canada. Because it is a sealed beam design, the entire unit is replaced rather than an internal filament or capsule.
Low beam headlights on the Pontiac Tempest use the H5006 sealed beam unit across all model years from 1961-1970.
The H5006 is a 5.75-inch round sealed beam unit, also rated at 12V and conforming to the same ANSI standard as the H5001. Like the H5001, the H5006 is replaced as a complete unit.
The H5001 and H5006 are not interchangeable with each other. The H5001 is square and designated for high beam use, while the H5006 is round and designated for low beam use, and their physical forms prevent cross-fitment.
Both the H5001 and H5006 operate on a 12-volt electrical system, which is consistent with the standard automotive electrical architecture of the era in which the Tempest was produced.
ANSI standardization of both bulb types means that any H5001 or H5006 unit from a compliant manufacturer should meet the same physical and electrical specifications, regardless of brand.