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.
Yes, the 3047 replaces the 3057.
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.
Yes, the 4157 is just slightly more powerful than the 3157, 28.5w compared to 27w
tail/stop/turn signal bulb # 3057 park/turn signal bulb # 3157NA
According to the 2000 Ford Windstar Owner Guide : The front park / turn lamps take the ( 3157 NAK , amber bulb )
Yes, the T3157 and the 3157 bulbs are compatible. The "T" in T3157 refers to the bulb's base type, indicating it's a twist-lock bulb, while the 3157 designation is the standard for the bulb's size and function. Both bulbs often serve similar applications in automotive lighting, but it’s always best to check the specific requirements of your vehicle or fixture to ensure proper fit and function.
Double-check me on this that the rear turn signal uses the brake bulb. That bulb is a 3057. See sources and related links below for more info.
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.
The number needed should be in your manual, if not, remove the bulb & there should be a number on the base. When you go to a parts store, just look for the same number.
It's a 3157 bulb... dual filament, EXTREMELY common for this application among several auto manufacturers.