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4" Round LED Turn Signal Lights

4" round LED lights are commonly used as front/turn/clearance lights or stop/turn/tail lights. They can be mounted in either a rubber grommet or a metal safety flange. Most every truck on the road has a ton of these, on their mudflap hangers, rear center panel, bumper, or even on their trailer.


All lights in our stock are made to function with 12-volt systems. However, we also carry many multi-voltage and 12/24-volt styles. See our 24-volt LED lights page for more information.

  • 4" round Black rubber light mounting grommet

    Original price $1.49 - Original price $1.49
    Original price
    $1.49
    $1.49 - $1.49
    Current price $1.49
    Out of stock

    This open-backed grommet is compatible with any of our 4" round LED or incandescent lights. For more expensive styles, you may want to use a stainl...

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    Original price $1.49 - Original price $1.49
    Original price
    $1.49
    $1.49 - $1.49
    Current price $1.49
    Sold out
  • Dual Revolution Red/White 4" round 19 diode LED stop/turn/tail and backup light - CLEAR lens

    Original price $44.99 - Original price $44.99
    Original price
    $44.99
    $44.99 - $44.99
    Current price $44.99
    10+ in stock

    This light is a stop/turn/tail and a backup light, all in one housing! Using the standard three-prong offset plug, it will light up red and functio...

    View full details
    Original price $44.99 - Original price $44.99
    Original price
    $44.99
    $44.99 - $44.99
    Current price $44.99
  • "Fleet" Red 4" round 18 diode LED stop/turn/tail light - CLEAR lens

    Original price $12.99 - Original price $12.99
    Original price
    $12.99
    $12.99 - $12.99
    Current price $12.99
    10+ in stock

    As the name implies, these Fleet lights are economically priced, but high-quality - perfect for outfitting a large number of trucks without bankrup...

    View full details
    Original price $12.99 - Original price $12.99
    Original price
    $12.99
    $12.99 - $12.99
    Current price $12.99
  • "Fleet" Red 4" round 18 diode LED stop/turn/tail light

    Original price $12.99 - Original price $12.99
    Original price
    $12.99
    $12.99 - $12.99
    Current price $12.99
    Out of stock

    As the name implies, these Fleet lights are economically priced, but high-quality - perfect for outfitting a large number of trucks without bankrup...

    View full details
    Original price $12.99 - Original price $12.99
    Original price
    $12.99
    $12.99 - $12.99
    Current price $12.99
    Sold out
  • 4" round "Stealth" chrome plastic screwless grommet cover - no visor

    Original price $4.49 - Original price $4.49
    Original price
    $4.49
    $4.49 - $4.49
    Current price $4.49
    10+ in stock

    Never waste time installing grommet covers ever again! This bezel twists on over your grommets without screws for a snug fit and smooth look. No ex...

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    Original price $4.49 - Original price $4.49
    Original price
    $4.49
    $4.49 - $4.49
    Current price $4.49
  • Pearl 4" LED sleeper load light w/1156 plug - Red

    Original price $26.99 - Original price $26.99
    Original price
    $26.99
    $26.99 - $26.99
    Current price $26.99
    Only 9 left!

    This replacement load light is a great way to update the back of your sleeper. You'll increase your visibility, too. Most stock utility lights in t...

    View full details
    Original price $26.99 - Original price $26.99
    Original price
    $26.99
    $26.99 - $26.99
    Current price $26.99
  • 4" round chrome plastic light bezel grommet cover

    Original price $3.99 - Original price $3.99
    Original price
    $3.99
    $3.99 - $3.99
    Current price $3.99
    Only 7 left!

    Includes mounting screws. Screws to the rubber grommet.

    Original price $3.99 - Original price $3.99
    Original price
    $3.99
    $3.99 - $3.99
    Current price $3.99
  • 4" round chrome plastic light bezel with visor

    Original price $3.49 - Original price $3.49
    Original price
    $3.49
    $3.49 - $3.49
    Current price $3.49
    10+ in stock

    Fits all 4" round rubber light grommets. Includes screws for installation. Imported.

    Original price $3.49 - Original price $3.49
    Original price
    $3.49
    $3.49 - $3.49
    Current price $3.49
  • Pearl red 4" round 24 diode LED stop/turn/tail light - CLEAR lens

    Original price $18.99 - Original price $18.99
    Original price
    $18.99
    $18.99 - $18.99
    Current price $18.99
    10+ in stock

    Many truckers are converting their trucks to an all-LED setup. One advantage LEDs have over incandescent lights is that they present an opportunity...

    View full details
    Original price $18.99 - Original price $18.99
    Original price
    $18.99
    $18.99 - $18.99
    Current price $18.99
  • Red 4" round 19 diode LED stop/turn/tail light - CLEAR lens

    Original price $28.99 - Original price $28.99
    Original price
    $28.99
    $28.99 - $28.99
    Current price $28.99
    10+ in stock

    This light is RED, only. It is not part of the Dual Revolution series, although the similar looks make it a good pairing for those lights.

    Original price $28.99 - Original price $28.99
    Original price
    $28.99
    $28.99 - $28.99
    Current price $28.99
  • Red 4" round 19 diode LED stop/turn/tail light

    Original price $15.99 - Original price $15.99
    Original price
    $15.99
    $15.99 - $15.99
    Current price $15.99
    10+ in stock

    These turn signals are a customer favorite. We've sold them two at a time, and we've sold them twenty at a time! They have the most diodes of any 4...

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    Original price $15.99 - Original price $15.99
    Original price
    $15.99
    $15.99 - $15.99
    Current price $15.99
  • 4" round "Stealth" chrome plastic screwless grommet cover with visor

    Original price $4.99 - Original price $4.99
    Original price
    $4.99
    $4.99 - $4.99
    Current price $4.99
    10+ in stock

    It's a grommet cover revolution. This bezel instantly twists on over your grommets without screws for a snug fit and smooth look. The tabs on the b...

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    Original price $4.99 - Original price $4.99
    Original price
    $4.99
    $4.99 - $4.99
    Current price $4.99
  • Pearl 4" LED sleeper load light w/1156 plug - Red - CLEAR lens

    Original price $26.99 - Original price $26.99
    Original price
    $26.99
    $26.99 - $26.99
    Current price $26.99
    10+ in stock

    This replacement load light is a great way to update the back of your sleeper. You'll increase your visibility, too. Most stock utility lights in t...

    View full details
    Original price $26.99 - Original price $26.99
    Original price
    $26.99
    $26.99 - $26.99
    Current price $26.99
  • American Superlite red 4" round LED stop/turn/tail light - CLEAR lens

    Original price $37.99 - Original price $37.99
    Original price
    $37.99
    $37.99 - $37.99
    Current price $37.99
    10+ in stock

    This light requires the use of either a rubber grommet or mounting flange. This light is hard-wired with one three-prong female plug, connected to ...

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    Original price $37.99 - Original price $37.99
    Original price
    $37.99
    $37.99 - $37.99
    Current price $37.99
  • "Fleet" Amber 4" round 18 diode LED turn signal light - CLEAR lens

    Original price $14.99 - Original price $14.99
    Original price
    $14.99
    $14.99 - $14.99
    Current price $14.99
    Out of stock

    As the name implies, these Fleet lights are economically priced, but high-quality - perfect for outfitting a large number of trucks without bankrup...

    View full details
    Original price $14.99 - Original price $14.99
    Original price
    $14.99
    $14.99 - $14.99
    Current price $14.99
    Sold out
  • Maxxima 4" round stainless steel light security flange

    Original price $7.99 - Original price $7.99
    Original price
    $7.99
    $7.99 - $7.99
    Current price $7.99
    10+ in stock

    This heavy-duty light mounting flange works best with Maxxima brand lights. It may fit other brands, but some will be too large or too small to fit...

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    Original price $7.99 - Original price $7.99
    Original price
    $7.99
    $7.99 - $7.99
    Current price $7.99
  • 4" round stainless steel mounting flange for Pearl lights

    Original price $10.49 - Original price $10.49
    Original price
    $10.49
    $10.49 - $10.49
    Current price $10.49
    10+ in stock

    Does NOT includes mounting hardware. Fits Grand General's Pearl LED lights. Does NOT fit "Fleet" lights!!! May not fit other brands.

    Original price $10.49 - Original price $10.49
    Original price
    $10.49
    $10.49 - $10.49
    Current price $10.49
  • Pearl 4" LED sleeper load light w/1156 plug - Blue

    Original price $34.99 - Original price $34.99
    Original price
    $34.99
    $34.99 - $34.99
    Current price $34.99
    Only 4 left!

    This replacement load light is a great way to update the back of your sleeper. You'll increase your visibility, too. Most stock utility lights in t...

    View full details
    Original price $34.99 - Original price $34.99
    Original price
    $34.99
    $34.99 - $34.99
    Current price $34.99
  • 4" round stainless steel mounting flange for Dual Revolution lights

    Original price $7.49 - Original price $7.49
    Original price
    $7.49
    $7.49 - $7.49
    Current price $7.49
    10+ in stock

    Sold SINGLE. Compatible with 4" grommet mount Dual Revolution LED lights, and we have had luck using them for Pearl and Fleet lights as well. No mo...

    View full details
    Original price $7.49 - Original price $7.49
    Original price
    $7.49
    $7.49 - $7.49
    Current price $7.49
  • Maxxima 4" round stainless steel light security flange w/chrome finish

    Original price $7.99 - Original price $7.99
    Original price
    $7.99
    $7.99 - $7.99
    Current price $7.99
    10+ in stock

    Fits Maxxima 4" round LED lights. This style has a chrome finish, making it shinier than our SKU #12651, shown as a related item. Why use a flange ...

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    Original price $7.99 - Original price $7.99
    Original price
    $7.99
    $7.99 - $7.99
    Current price $7.99
  • 4" round chrome plastic flange for American Superlite LED lights

    Original price $8.95 - Original price $8.95
    Original price
    $8.95
    $8.95 - $8.95
    Current price $8.95
    Only 6 left!

    These chrome plastic mounting flanges are made specifically for American Superlite LED lights. The unique "flower" style matches your Superlite tur...

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    Original price $8.95 - Original price $8.95
    Original price
    $8.95
    $8.95 - $8.95
    Current price $8.95
  • Dual Revolution Red/Purple 4" round 19 diode LED stop/turn/tail and auxiliary light - CLEAR lens

    Original price $53.99 - Original price $53.99
    Original price
    $53.99
    $53.99 - $53.99
    Current price $53.99
    Only 6 left!

    This light is a stop/turn/tail and an auxiliary light, all in one housing! Using the standard three-prong offset plug, it will light up red and fun...

    View full details
    Original price $53.99 - Original price $53.99
    Original price
    $53.99
    $53.99 - $53.99
    Current price $53.99
  • "Halo" Red 4" round LED stop/turn/tail light

    Original price $22.99 - Original price $22.99
    Original price
    $22.99
    $22.99 - $22.99
    Current price $22.99
    10+ in stock

    What looks like a normal, grommet-mount tail light is anything but! The glowing outer "Halo" acts as a soft but fully-functional marker light, then...

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    Original price $22.99 - Original price $22.99
    Original price
    $22.99
    $22.99 - $22.99
    Current price $22.99
  • 4" round chrome plastic light bezel w/shine-through mirror coating

    Original price $7.39 - Original price $7.99
    Original price
    $7.39 - $7.99
    $7.39 - $7.99
    Current price $7.39
    Only 3 left!

    Original price $7.39 - Original price $7.99
    Original price
    $7.39 - $7.99
    $7.39 - $7.99
    Current price $7.39
  • 4" Twist Lock N Go chrome plastic BEZEL ONLY for Grand General 4" flush mount LED lights

    Original price $5.49 - Original price $5.49
    Original price
    $5.49
    $5.49 - $5.49
    Current price $5.49
    Only 9 left!

    Replaces the chrome bezel from Grand General Fleet series 4" round flush mount LED lights. This is NOT a cover for a rubber grommet. See related it...

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    Original price $5.49 - Original price $5.49
    Original price
    $5.49
    $5.49 - $5.49
    Current price $5.49
  • "Fleet" Amber 4" round 18 diode LED turn signal light

    Original price $14.99 - Original price $14.99
    Original price
    $14.99
    $14.99 - $14.99
    Current price $14.99
    Only 6 left!

    As the name implies, these Fleet lights are economically priced, but high-quality - perfect for outfitting a large number of trucks without bankrup...

    View full details
    Original price $14.99 - Original price $14.99
    Original price
    $14.99
    $14.99 - $14.99
    Current price $14.99
  • Dual Revolution Red/Blue 4" round 19 diode LED stop/turn/tail and auxiliary light - CLEAR lens

    Original price $53.99 - Original price $53.99
    Original price
    $53.99
    $53.99 - $53.99
    Current price $53.99
    10+ in stock

    This light is a stop/turn/tail and an auxiliary light, all in one housing! Using the standard three-prong offset plug, it will light up red and fun...

    View full details
    Original price $53.99 - Original price $53.99
    Original price
    $53.99
    $53.99 - $53.99
    Current price $53.99
  • American Superlite red 4" round 15 diode LED stop/turn/tail light

    Original price $37.99 - Original price $37.99
    Original price
    $37.99
    $37.99 - $37.99
    Current price $37.99
    Only 6 left!

    Features: Reflector lens enables a 180-degree viewing angle. Fits any standard 4" rubber grommet or mounting flange. Hard-wired with one three-pro...

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    Original price $37.99 - Original price $37.99
    Original price
    $37.99
    $37.99 - $37.99
    Current price $37.99
  • "Competition Series" Red 4" round 7 diode LED stop/turn/tail light

    Original price $9.49 - Original price $9.49
    Original price
    $9.49
    $9.49 - $9.49
    Current price $9.49
    Only 2 left!

    The Competition Series is a line of products intended to look good enough for the truck show, but also hold up out on the road. These stop/turn/tai...

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    Original price $9.49 - Original price $9.49
    Original price
    $9.49
    $9.49 - $9.49
    Current price $9.49
  • Pearl red 4" round 24 diode LED stop/turn/tail light

    Original price $18.99 - Original price $18.99
    Original price
    $18.99
    $18.99 - $18.99
    Current price $18.99
    10+ in stock

    Many truckers are converting their trucks to an all-LED setup. One advantage LEDs have over incandescent lights is that they present an opportunity...

    View full details
    Original price $18.99 - Original price $18.99
    Original price
    $18.99
    $18.99 - $18.99
    Current price $18.99
  • 4" round chrome plastic light holding rim/mounting flange

    Original price $4.99 - Original price $4.99
    Original price
    $4.99
    $4.99 - $4.99
    Current price $4.99
    10+ in stock

    May not be compatible with all light brands.

    Original price $4.99 - Original price $4.99
    Original price
    $4.99
    $4.99 - $4.99
    Current price $4.99
  • Flatline red 4" round flange mount 49 diode LED turn signal - CLEAR lens

    Original price $51.99 - Original price $51.99
    Original price
    $51.99
    $51.99 - $51.99
    Current price $51.99
    Only 1 left!

    This version of our 4 inch Flatline turn signal is perfect for sleeper load lights, but you can use it anywhere you'd like a 4 inch light.The built...

    View full details
    Original price $51.99 - Original price $51.99
    Original price
    $51.99
    $51.99 - $51.99
    Current price $51.99
  • Dual Revolution Red/Green 4" round 19 diode LED stop/turn/tail and auxiliary light - CLEAR lens

    Original price $53.99 - Original price $53.99
    Original price
    $53.99
    $53.99 - $53.99
    Current price $53.99
    10+ in stock

    This light is a stop/turn/tail and an auxiliary light, all in one housing! Using the standard three-prong offset plug, it will light up red and fun...

    View full details
    Original price $53.99 - Original price $53.99
    Original price
    $53.99
    $53.99 - $53.99
    Current price $53.99
  • Maxxima "Hybrid" Red/White 4" round 21 diode LED combo back up and stop/turn/tail light

    Original price $37.95 - Original price $37.95
    Original price
    $37.95
    $37.95 - $37.95
    Current price $37.95
    Only 8 left!

    PLEASE NOTE: Maxxima has redesigned this light. If you are attempting to match an existing version on this light, our new stock is likely to be the...

    View full details
    Original price $37.95 - Original price $37.95
    Original price
    $37.95
    $37.95 - $37.95
    Current price $37.95
  • Pearl 4" LED sleeper load light w/1156 plug - Green

    Original price $34.99 - Original price $34.99
    Original price
    $34.99
    $34.99 - $34.99
    Current price $34.99
    Only 9 left!

    This replacement load light is a great way to update the back of your sleeper. You'll increase your visibility, too. Most stock utility lights in t...

    View full details
    Original price $34.99 - Original price $34.99
    Original price
    $34.99
    $34.99 - $34.99
    Current price $34.99
  • Piranha Red 4" round 36 diode LED stop/turn/tail light

    Original price $32.99 - Original price $32.99
    Original price
    $32.99
    $32.99 - $32.99
    Current price $32.99
    10+ in stock

    This brake light features a high diode count, unfettered by extra reflectors or overly-textured lenses. It's all about pure, bright, LED light for ...

    View full details
    Original price $32.99 - Original price $32.99
    Original price
    $32.99
    $32.99 - $32.99
    Current price $32.99

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