The 3157 and 4157 produce the same amounts of light from their dim and their bright filaments. The 4157 has a longer life rating than the 3157.
The 4157 light bulb typically has a candlepower of around 30 to 35. Candlepower is a measure of the intensity of the light emitted by a source in a specific direction.
4157
Well. I work at NAPA and it called for a 3057kx which we naturally don't have in stock. But when the customer pulled the bulb out it was a 3157. which will fit in its place. It might be some sort of long life bulb. Just put a 3157 in there. that's what most brake lights are.
the daytime running light bulb on the GMC trucks is not, contrary to popular belief, a 3157 bulb. A 3157 bulb cannot handle the voltage spikes that are created in the circuit. Use a 4157 bulb and you shouldn't have anymore problems with the DRLs burning out.
Yes, they more or less are. Both have two filaments, one for the parking light, and one for the brake light or turn signal. The parking light filament of the 3157 is a little brighter than the parking light filament of the 3057. The signal filaments of both bulbs are the same brightness.
The 4114 is an ultralong-life bulb with its major and minor filaments rated at 14v. The 3157 has its major filament rated at 12.8v and a much shorter lifespan. 4157 is in between the two bulbs for lifespan rating. All three bulbs produce the same amounts of light.
According to the 2000 Ford Windstar Owner Guide : The front park / turn lamps take the ( 3157 NAK , amber bulb )
For all practical purposes, they are interchangeable. To my eye the 3357 seeems to be brighter on the heavier filament. (brake/turn)
The main difference between a 3156 and 3157 bulb is the number of filaments they have. The 3156 bulb has one filament, typically used for signal lights, while the 3157 bulb has two filaments, making it suitable for dual-function applications like brake lights that also serve as tail lights. Make sure to choose the correct bulb type for your specific automotive lighting needs.
The 3157 is a clear bulb and the 3157NA is an amber color.
It's a 3157 bulb... dual filament, EXTREMELY common for this application among several auto manufacturers.