The main difference between the bulbs 3157 and 3157LL lies in their intended application. The "LL" designation typically indicates a long-life version of the standard bulb, designed to last longer and provide more consistent performance over time. This may involve differences in the materials used, the design of the filament, or the overall construction of the bulb to enhance durability and longevity. It's important to note that while the 3157LL may offer extended lifespan, it may also have slightly different electrical characteristics compared to the standard 3157 bulb.
A 3157LL means 3157 Long Life, some stores carry it as 3357 bulb or a Heavy Duty 3157.the filament is stronger in the LL bulb.
The difference between the bulbs 3157LL and 3157K lies in their intended use and specifications. The 3157LL bulb is a long-life version, designed to have a longer lifespan compared to the standard 3157 bulb. On the other hand, the 3157K bulb denotes a specific color temperature, typically a cool white light output. It is important to consider these differences when selecting the appropriate bulb for your application.
The 3157 is a clear bulb and the 3157NA is an amber color.
The 1157 has a 15mm metal bayonet (push/twist) cap, while the 3157 has a plastic wedge (push-in) cap.
I have successfully installed bulbs 3057, 3157 and 3457 in my Chrysler Town & Country mini-van, for the brake/stop lights.
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.
3157
#3157.
4057k is a ford number, while 3157 is a napa brand of the same item.
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.
For all practical purposes, they are interchangeable. To my eye the 3357 seeems to be brighter on the heavier filament. (brake/turn)
maybe wrong bulbs 2057 or 3157 or 1156