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3156/3157 CK LED Bulb - Dual Function 27 SMD LED Tower - Wedge Base

Part Number: 3157-x27-T-CK-CAR
Select Color Options:
Cool 6300K
Natural 4000K
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In Stock
Starting at $14.95 ea.
Volume price as low as $13.45
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*Only valid if promo is applied at checkout.

*Only valid on orders placed between October 6th, 2021 and October 18th, 2021.

Frequently Bought Together


These CK-wired bulbs can fit standard or SRCK- and SACK-compatible vehicle tail lights, reverse lights, brake lights, turn signals, and side marker lights. They contain both grounds on the same side of the wedge, but because these bulbs are not polarity sensitive, they can be used in any non-SRCK/SACK 3156 or 3157 socket as well. This dual-contact, dual-function 3156/3157 bulb emits a 360° viewing angle for better, allover light emission with reduced hot spots. Tower-style design with a 16-mm wedge base for easy plug-and-play installation. The energy-efficient bulb operates within a 9-14.8 VDC range and is designed to last 25 times longer on your car, truck, SUV, or van than incandescent bulbs. Use a ground tester or contact your dealer to see if your vehicle has CK light sockets. Available in amber, red, natural white, and cool white color. Not sold in pairs. Amber lights feature high-intensity LEDs that are ideal for high brightness LED applications. Price per bulb.

Important Notes - Please read before purchasing:
  1. Your vehicle may require an LED compatible Flasher or Load Resistor. LED brake/tail lamps will not flash with most stock flasher units due to their extremely low current draw. Try our Vehicle LED Bulb Finder to find a compatible flasher for your vehicle. Please See More LED Car Bulb Notes
  2. Oversize
  3. For best results the LED color should be the same as the lens color. If bulb is behind a clear lens, use the appropriate color for turn and brake light functions. Please See More LED Car Bulb Notes
  4. If your daytime running light application serves multiple purposes, this bulb will most likely not work for your vehicle.
3 Years
Super Bright LEDs, Inc. offers a 3-year warranty to protect against manufacturer defects and malfunctions. If you experience failure of an LED or other component not caused by negligence, abuse, unauthorized repair or disassembly, we will replace the product within the warranty period. If the same product is no longer available, a product of equal value may be substituted. Read More
  • Truck And Car Cabin Lights
  • RV Interiors
  • Turn Lights
  • Side Marker Lights
  • Tail Lights
  • Reverse Lights
  • Brake Lights
  • Dome Lights
  • Turn Lights
  • Side Marker Lights
  • Tail Lights
  • Reverse Lights
  • RV Interior Lighting


Swipe left to see additional specifications
Part NOCCT / Wavelength
Current Draw @ Operating Voltage
Price Ea.Product Weight
3157-A27-T-CK596 nm67/200 lm0.08/0.25A$14.95-
3157-R27-T-CK633 nm16/46 lm0.08/0.22A$14.95-
3157-CW27-T-CK6300 90/270 lm0.08/0.25A$14.95-
3157-NW27-T-CK4000 90/270 lm0.08/0.25A$14.95-
3157-A27-T-CK-2PK596 nm67/200 lm0.08/0.25A$29.90-
3157-R27-T-CK-2PK633 nm16/46 lm0.08/0.22A$29.90-
3157-CW27-T-CK-2PK6300 90/270 lm0.08/0.25A$29.90-
3157-NW27-T-CK-2Pk4000 90/270 lm0.08/0.25A$29.90-
Single VS Dual VS CK Dual Filament
Single Filament, Dual Filament, and CK Dual Filament
  • When looking for a replacement bulb, the way the socket is wired determines the part number of the replacement bulb. Sockets that are used for a single intensity call for 3156 or 7440 bulbs (single filament), while sockets that have a dual intensity call for 3157 or 7443 bulbs (dual filament). Dual filament bulbs will function properly in a single intensity socket. So a 3157 bulb will work in a 3156 socket and a 7443 will work in a 7440 socket. However, single filament bulbs will not function in a dual intensity socket. CK indicates where the socket's positive and negative terminals are located. CK LED bulbs are very versatile and can be used in any application a CK or non-CK bulb is used.
3156/3157 LED Bulb - Dual Function 27 SMD LED Tower - Wedge Retrofit



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Technical Level
Part Number
Reviewed On

2002 Silverado DRL Replacement Bulb

This LED bulb should be in all Chevy Silverado pickups! The cheap plastic ($32) sockets are terrible and can't withstand the heat generated by the original bulbs. I wished I had put these in when I first bought my pickup.
They are brighter than the original and will last longer! Five Star quality product. Exact replacement bulb.

Helpful? Yes (39) No (0)

Russell C.
Technical Level
Part Number
Reviewed On

DRL LED replacement

This were direct replacement and are much brighter than originals with out the heat of the original.

Helpful? Yes (31) No (7)

Technical Level
Part Number
Reviewed On


I finally have the white led bulb that works as both DRL and turn signal for my 2011 Tacoma even thought the socket has only 2 wires.

Helpful? Yes (23) No (1)

Technical Level
Part Number
Reviewed On

Exactly As Described

I am thrilled with these LED lights. They are so much brighter and whiter than stock. Install was easy, they were installed in less than 5 minutes. This is my 2nd purchase from SBL and I can't wait to order more from SBL and I am now hooked on LED lights.

Helpful? Yes (19) No (0)

Technical Level
Part Number
Reviewed On

Like night and day

Replaced both backup bulbs with these leds and can now see far better. Eventually will replace all incandescents with leds.

Helpful? Yes (20) No (3)

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