Plymouth Prowler front and rear turn signal bulbs utilize 3157NA and 3157 sizes respectively, with front applications requiring the larger 3157NA bulb designation. The replacement chart covers 1997 through 2001 production 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 Plymouth Prowler uses the 3157NA bulb for the front turn signal across the 1997-2001 model years.
The 3157NA is an ANSI-standard dual-filament wedge bulb in the T25 form factor, rated at 12V with a 27W high filament and 7W low filament. The "NA" designation indicates natural amber glass, which produces an amber output without relying on a colored lens.
The rear turn signal on the Prowler uses the 3157 bulb across the same 1997-2001 model years.
The 3157 shares the same T25 form factor, dual-filament design, and 12V/27W/7W electrical ratings as the 3157NA. The sole distinction between the two is the absence of the natural amber glass coating on the 3157.
Because the 3157 and 3157NA are physically identical in form factor and wattage, they are mechanically interchangeable. However, substituting a clear 3157 in place of a 3157NA at the front position would alter the color output at that position, since the amber tint is built into the 3157NA glass rather than the lens housing.
Both bulb types conform to ANSI standards applicable in the United States and Canada, indicating compliance with North American automotive lighting regulations.
The dual-filament configuration on both bulbs allows a single unit to serve two functions, typically combining a higher-wattage turn signal or brake function with a lower-wattage parking or running light function within one housing.