The International ProStar high beam headlight uses a 9005 bulb size while the low beam headlight requires a 9006 bulb size. The replacement chart covers vehicle production spanning 2008 to 2018 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 International ProStar uses the 9005 bulb for high beam headlights across all model years from 2008-2018, making it the consistent high beam specification throughout the vehicle's entire production range covered by these specifications.
The 9005 is an ANSI-standard single-filament halogen bulb operating at 12V and 65W, fitted with a P20d base, which is a bayonet-style base type used to ensure correct seating and polarity alignment in the headlamp housing.
The 9006 bulb serves as the low beam headlight across all model years from 2008-2018. It is also an ANSI-standard single-filament halogen bulb but operates at a lower wattage of 55W compared to the 9005, with a P22d base.
The P20d base on the 9005 and the P22d base on the 9006 are physically distinct from one another, meaning the two bulb types are not interchangeable despite their similar appearance and shared voltage rating.
From 2015-2018, both the high beam and low beam specifications carry a "With Halogen Capsule Headlamps" qualifier, indicating that the 9005 and 9006 fitment applies specifically to vehicles equipped with that headlamp configuration during those years.
The wattage difference between the 9005 (65W) and 9006 (55W) reflects a deliberate design distinction, as high beam applications generally require greater light output than low beam applications.
Both the 9005 and 9006 conform to ANSI standards recognized in the United States and Canada, classifying them within a standardized North American bulb designation system rather than the ECE system used in other markets.