The Chrysler TC Maserati brake light requires a 2057 bulb size for proper installation and function. Data for the specified lighting component covers the period from 1989 to 1991.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Chrysler TC Maserati uses two distinct bulb types across its brake lighting system for the 1989-1991 model years: the 2057 for standard brake lights and the 921 for the center high mount stop light.
The 2057 is a dual-filament bulb built on a BAY15d bayonet base, operating at 12V with a wattage split of 26.9W on the high filament and 8W on the low filament, which allows it to serve both brake and running light functions from a single unit.
The 2057 is classified as a brighter variant of the 1157, sharing the same BAY15d base type, though the two are not identical in output and are not directly interchangeable without accounting for the wattage difference.
The BAY15d base on the 2057 features two offset pins at different heights, a design that prevents incorrect insertion and ensures the dual filaments are connected to the correct circuits.
The 921 is a single-filament wedge-type bulb in the T15 form factor, rated at 12V and 16W, and is dedicated solely to the center high mount stop light on the Chrysler TC Maserati.
Wedge bulbs such as the 921 have no base pins and are instead held in place by the tension of the socket contacts against the glass envelope, making socket compatibility dependent on the physical size of the wedge rather than a keyed base.
Both the 2057 and 921 conform to ANSI standards applicable in the United States and Canada, indicating standardized electrical and physical tolerances across manufacturers producing these bulb types.
Because the 2057 and 921 differ in both base type and filament configuration, they are not interchangeable with each other, and each position in the brake lighting system requires its specified bulb type.