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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.

  • Original price $1.49 - Original price $1.49
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    4" round Black rubber light mounting grommet

    12+ in 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
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  • Original price $4.49 - Original price $4.49
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    4" round "Stealth" chrome plastic screwless grommet cover - no visor

    12+ 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
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  • Original price $44.99 - Original price $44.99
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    Dual Revolution Red/White 4" round 19 diode LED stop/turn/tail and backup light - CLEAR lens

    12+ 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...

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    Original price $44.99 - Original price $44.99
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    Current price $44.99
  • Original price $14.99 - Original price $14.99
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    "Fleet" Red 4" round 18 diode LED stop/turn/tail light - CLEAR lens

    12+ 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...

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    Original price $14.99 - Original price $14.99
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    $14.99 - $14.99
    Current price $14.99
  • Original price $14.99 - Original price $14.99
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    Current price $14.99

    "Fleet" Red 4" round 18 diode LED stop/turn/tail light

    12+ 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 $14.99 - Original price $14.99
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    $14.99
    $14.99 - $14.99
    Current price $14.99
  • Original price $3.99 - Original price $3.99
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    4" round chrome plastic light bezel grommet cover

    12+ in stock

    Includes mounting screws. Screws to the rubber grommet.

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

    12+ in stock

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

    Original price $3.99 - Original price $3.99
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  • Original price $26.99 - Original price $26.99
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    Pearl 4" LED sleeper load light w/1156 plug - Red

    12+ 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...

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    Original price $26.99 - Original price $26.99
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  • Original price $23.99 - Original price $23.99
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    Pearl red 4" round 24 diode LED stop/turn/tail light - CLEAR lens

    12+ 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...

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    Original price $23.99 - Original price $23.99
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    Pearl 4" LED sleeper load light w/1156 plug - Red - CLEAR lens

    12+ 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
  • Original price $28.99 - Original price $28.99
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    Red 4" round 19 diode LED stop/turn/tail light - CLEAR lens

    Only 3 left!

    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
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  • Original price $4.99 - Original price $4.99
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    4" round "Stealth" chrome plastic screwless grommet cover with visor

    12+ 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
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  • Original price $10.49 - Original price $10.49
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    4" round stainless steel mounting flange for Pearl lights

    12+ 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
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  • Original price $23.99 - Original price $23.99
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    Pearl red 4" round 24 diode LED stop/turn/tail light

    12+ 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 $23.99 - Original price $23.99
    Original price
    $23.99
    $23.99 - $23.99
    Current price $23.99
  • Original price $7.49 - Original price $7.49
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    4" round stainless steel mounting flange for Dual Revolution lights

    12+ 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...

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    Original price $7.49 - Original price $7.49
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  • Original price $14.99 - Original price $14.99
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    "Fleet" Amber 4" round 18 diode LED turn signal light

    Only 8 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
  • Original price $15.99 - Original price $15.99
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    Red 4" round 19 diode LED stop/turn/tail light

    12+ 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
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  • Original price $7.99 - Original price $7.99
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    Maxxima 4" round stainless steel light security flange

    12+ 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
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  • Original price $12.99 - Original price $12.99
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    Red 4" round 8 diode LED stop/turn/tail light

    12+ in stock

    Looking for a simple, uncomplicated tail light? This style is a great option for drivers who like a classic look, rather than one of our more moder...

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    Original price $12.99 - Original price $12.99
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  • Original price $5.49 - Original price $5.49
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    4" Twist Lock N Go chrome plastic BEZEL ONLY for Grand General 4" flush mount LED lights

    12+ in stock

    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
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  • Original price $53.99 - Original price $53.99
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    Dual Revolution Red/Purple 4" round 19 diode LED stop/turn/tail and auxiliary light - CLEAR lens

    Only 10 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...

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    Original price $53.99 - Original price $53.99
    Original price
    $53.99
    $53.99 - $53.99
    Current price $53.99
  • Original price $27.99 - Original price $27.99
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    Current price $27.99

    "Fleet" White 4" round 18 diode LED backup/reverse light

    Only 5 left!

    This is a single-function backup/reverse light. It has a three prong female plug in the back, but only the ground and hot wire are needed.

    Original price $27.99 - Original price $27.99
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    Current price $27.99
  • Original price $14.99 - Original price $14.99
    Original price
    $14.99
    $14.99 - $14.99
    Current price $14.99

    "Fleet" Amber 4" round 18 diode LED turn signal light - CLEAR lens

    12+ 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 $14.99 - Original price $14.99
    Original price
    $14.99
    $14.99 - $14.99
    Current price $14.99
  • Original price $7.99 - Original price $7.99
    Original price
    $7.99
    $7.99 - $7.99
    Current price $7.99

    Maxxima 4" round stainless steel light security flange w/chrome finish

    Only 7 left!

    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