The Jeep Wagoneer brake component utilizes unique bulb sizes 2057, 1157, 198, and 1034 depending on the specific production period for the vehicle. Available data covers the range of 1963 through 1990 for the specified lighting equipment.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Jeep Wagoneer brake light specifications span 1963-1990, with four distinct bulb types used across that period: the 1034, 198, 1157, and 2057.
The 2057 and 1157 are both dual-filament bulbs sharing the BAY15d bayonet base, meaning they are physically interchangeable in terms of socket fit. However, the 2057 operates at 26.9W/8W while the 1157 operates at 21W/5W, making the 2057 the brighter of the two.
The 1034 also uses the BAY15d bayonet base and shares a 21W/5W rating with the 1157, classifying it as a variant of that bulb type.
The Jeep Wagoneer (1985-1990) uses the 2057 for the brake light, representing the highest-wattage brake bulb specified across the entire model range.
The 1157 was specified for the brake light on the Wagoneer from 1979-1984, preceding the transition to the 2057.
The 198 is a single-filament miniature wedge bulb rated at only 2W, a notably lower output than the dual-filament bulbs used in other model years. It was specified for the brake light from 1969-1978.
The 1034 was specified for the brake light on the earliest documented Wagoneer years, covering 1963-1968.
The Center High Mount Stop Light (CHMSL) position is only listed for the 1985-1990 Wagoneer, using the 912 bulb, a T15 wedge type rated at 12V and 12W.
The 912 is a variant of the 921 bulb and uses a wedge base, making it physically incompatible with the BAY15d bayonet socket used by the 2057, 1157, and 1034 bulbs.
All bulb types listed across the Wagoneer specifications conform to ANSI standards applicable in both the United States and Canada.