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3157/3156 LED Bulbs for Brake, Tail, Turn & Reverse Lights
Upgrade worn or dim 3157 and 3156 bulbs with SEALIGHT LED replacements for brake, tail, turn signal, and reverse light applications. Choose red for brake and tail lights, amber for turn signals, white for reverse lights, or amber/white switchback for compatible dual-function positions. Available in multiple output levels and compact plug-and-play designs. Check your original bulb number and vehicle fitment before choosing a 3157 LED bulb, as the light position, socket type, and electrical requirements vary by vehicle.
- Color: White
- Lumens: 1800LM
- Wattage: 8W/Bulb
- Color: Amber/White
- Lumens: 3200LM
- Wattage: 30W/Pair
- Color: White
- Lumens: 3200LM
- Wattage: 30W/Pair
- Wattage: 8W/Bulb
- Color: Red
- Lumens: 1800LM
- Color: Red
- Lumens: 3200LM
- Wattage: 30W/Pair
- Color: Amber Yellow
- Lumens: 1800LM
- Wattage: 8W/Bulb
- Color: Amber/White
- Lumens: 2600LM
- Wattage: 20W/Pair
- Color: Amber
- Lumens: 3600LM
- Wattage: 36W/Pair
- Color: Xenon White
- Lumens: 3600LM
- Wattage: 36W/Pair
- Color: Red
- Lumens: 3600LM
- Wattage: 36W/Pair
- Color: White
- Lumens: 2000LM
- Wattage: 20W/Pair
- Color: Amber Yellow
- Lumens: 3200LM
- Wattage: 30W/Pair
- Color: Amber Yellow
- Lumens: 3000LM
- Wattage: 10W/Bulb
- Color: Red
- Lumens: 1500LM
- Wattage: 9W/Bulb
- Color: White
- Lumens: 2400LM
- Wattage: 24W/Pair
- Color: White
- Lumens: 1425LM
- Wattage: 6.6W/Bulb
- Color: Amber Yellow
- Lumens: 2400LM
- Wattage: 24W/Pair
- Color: Amber Yellow
- Lumens: 2000LM
- Wattage: 20W/Pair
- Color: Amber Yellow
- Lumens: 3000LM
- Wattage: 6W/Bulb
- Color: Amber Yellow
- Lumens: 1425LM
- Wattage: 6.6W/Bulb
- Color: Amber Yellow
- Lumens: 1500LM
- Wattage: 9W/Bulb
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3157/3156 LED Bulb Buying Guide
3157 and 3156 are common automotive wedge-base bulbs. A 3157 LED bulb responds faster and generally lasts longer than a 3157 incandescent bulb, but socket wiring and electrical compatibility must be checked before upgrading.
What Are 3157 and 3156 Bulbs Used For?
A conventional 3157 bulb supports two circuits or brightness levels, while a 3156 bulb is usually single-function. Actual applications vary by vehicle.
| Light Position | Common Bulb Application | Recommended Color |
|---|---|---|
| Brake light | 3157 brake light bulb or compatible 3156 brake light bulb | Red |
| Tail or parking light | 3157 tail light bulb or vehicle-specific 3156 tail light bulb | Red |
| Turn signal or blinker | 3157 turn signal bulb, 3157 blinker bulb, or 3156 turn signal bulb | Amber |
| Backup or reverse light | 3156 or 3157 reverse light bulb | White |
| Turn signal + parking light/DRL | 3157 switchback LED bulb | Amber/White |
For position-specific options, browse SEALIGHT 3157/3156 turn signal lights, 3157/3156 brake and tail lights, or 3157/3156 backup and reverse lights.
3156 vs. 3157 vs. 3057 and T25 Bulbs
These bulb numbers are often grouped together in LED listings, but they are not universally interchangeable.
| Bulb Type | Typical Function | Key Difference |
|---|---|---|
| 3156 bulb | Single-function | Commonly used for a turn signal, reverse light, or another single-intensity position |
| 3157 bulb | Dual-function | Supports two circuits or brightness levels |
| 3057 bulb | Dual-function | Similar to 3157, but original power and vehicle applications may differ |
| T25 | Automotive wedge bulb family | May include 3156, 3157, and 3057 applications |
A compatible 3057 LED bulb may fit some of the same applications as a 3157 bulb. Other numbers, including 3457 and 4157, may also be cross-listed with selected products. Always verify the original bulb number, socket wiring, product specifications, and vehicle fitment.
Learn more in our 3156 vs. 3157 bulb guide and 3057 vs. 3157 comparison.
How to Choose the Right 3157 LED Bulb
Before ordering, check:
- Bulb number: Confirm 3157, 3156, 3057, or another factory-specified size.
- Light function: Determine whether the position is single- or dual-function.
- Color: Choose a red 3157 LED bulb for brake and tail lights, an amber 3157 bulb for turn signals, white for reverse lights, or switchback for a compatible turn signal and parking light/DRL position.
- Socket wiring: Standard and CK/SRCK 3157 bulb sockets use different pin arrangements.
- Vehicle fitment: Check the year, make, model, trim, and factory lighting package.
- Electrical compatibility: Some vehicles require a load resistor or CANbus decoder after an LED upgrade.
- Available space: Confirm the LED bulb fits inside the factory housing.
Use the automotive bulb finder if you are unsure which bulb your vehicle uses.
Why Choose SEALIGHT 3157 LED Bulbs?
Choosing a 3157 LED bulb involves more than brightness. You also need the correct function, color, socket, and electrical compatibility. SEALIGHT addresses these common concerns with:
- Options for every position: Red for 3157 brake and tail lights, amber for turn signals, white for reverse lights, and amber/white switchback for compatible dual-function positions.
- Reliable fitment choices: Selected bulbs support 3157, 3156, 3057, and T25 applications. Use the vehicle fitment tool to confirm the correct size and socket.
- Brighter, faster response: LED bulbs illuminate quickly and provide clearer brake, turn signal, and reverse lighting than aging incandescent bulbs.
- Easy LED upgrades: Compact wedge bases and selected non-polarity designs simplify installation.
- Electrical compatibility support: Selected models include built-in resistance to help reduce hyper flash. Some vehicles may still require a load resistor or CANbus decoder.
- Long-lasting performance: Efficient cooling helps maintain stable output and reduces frequent bulb replacement.
FAQs
A conventional 3156 bulb is usually single-function. A conventional 3157 bulb supports two circuits or brightness levels, such as tail and brake light functions. Some LED products support both sizes, but compatibility must be confirmed.
3057 and 3157 bulbs use similar wedge bases and may fit some of the same sockets. However, their original specifications and vehicle applications can differ. Use the factory bulb number or choose an LED replacement that explicitly supports both.
3057, 3457, 4157, 3157A/3157NA, and some T25 products may be cross-listed with 3157. Compatibility depends on the required function, color, socket wiring, and vehicle application, so these numbers should not be treated as universally interchangeable.
3157 bulbs are used in selected cars, trucks, and SUVs as brake, tail, turn signal, parking, or reverse lights. Fitment varies by model year, trim, and lighting package. Check the original bulb or use the vehicle fitment tool.
Not as a general rule. A 3156 bulb normally provides one function, while a 3157 socket may require two. Only use a bulb in both applications when the product specifically lists 3156 and 3157 compatibility.
A CK/SRCK socket uses a different power and ground pin arrangement from a standard 3157 bulb socket. The wrong pin configuration may cause the bulb not to work, operate incorrectly, or blow a fuse.
Some vehicles do. The lower electrical load of an LED turn signal bulb can cause hyper flash. A 3157 LED bulb with a built-in resistor or a correctly installed external load resistor may solve the issue. External resistors become hot and should be mounted on a suitable metal surface away from plastic and wiring.
Not always. A CANbus decoder may be needed if the LED bulb flickers, triggers a dashboard warning, remains partially illuminated, or does not operate correctly. A load resistor mainly corrects turn signal hyper flash, while a decoder addresses vehicle monitoring-related problems.