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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
Original price
$1.49
$1.49 - $1.49
Current price $1.49

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
Original price
$1.49
$1.49 - $1.49
Current price $1.49
Original price $4.99 - Original price $4.99
Original price
$4.99
$4.99 - $4.99
Current price $4.99

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 $4.99 - Original price $4.99
Original price
$4.99
$4.99 - $4.99
Current price $4.99
Original price $53.99 - Original price $53.99
Original price
$53.99
$53.99 - $53.99
Current price $53.99

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...

View full details
Original price $53.99 - Original price $53.99
Original price
$53.99
$53.99 - $53.99
Current price $53.99
Original price $14.99 - Original price $14.99
Original price
$14.99
$14.99 - $14.99
Current price $14.99

"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
Original price
$14.99
$14.99 - $14.99
Current price $14.99
Original price $14.99 - Original price $14.99
Original price
$14.99
$14.99 - $14.99
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...

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Original price $14.99 - Original price $14.99
Original price
$14.99
$14.99 - $14.99
Current price $14.99
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 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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$3.99
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Current price $3.99
Original price $3.99 - Original price $3.99
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$3.99
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Current price $3.99

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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$3.99
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Current price $3.99
Original price $26.99 - Original price $26.99
Original price
$26.99
$26.99 - $26.99
Current price $26.99

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
Original price
$26.99
$26.99 - $26.99
Current price $26.99
Original price $11.99 - Original price $11.99
Original price
$11.99
$11.99 - $11.99
Current price $11.99

Red 4" round 19 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 $11.99 - Original price $11.99
Original price
$11.99
$11.99 - $11.99
Current price $11.99
Original price $23.99 - Original price $23.99
Original price
$23.99
$23.99 - $23.99
Current price $23.99

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
Original price
$23.99
$23.99 - $23.99
Current price $23.99
Original price $28.99 - Original price $28.99
Original price
$28.99
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Current price $28.99

Red 4" round 19 diode LED stop/turn/tail light - CLEAR lens

12+ 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
Original price $26.99 - Original price $26.99
Original price
$26.99
$26.99 - $26.99
Current price $26.99

Pearl 4" LED sleeper load light w/1156 plug - Red - CLEAR lens

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
Original price
$26.99
$26.99 - $26.99
Current price $26.99
Original price $10.49 - Original price $10.49
Original price
$10.49
$10.49 - $10.49
Current price $10.49

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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$10.49
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Current price $10.49
Original price $7.99 - Original price $7.99
Original price
$7.99
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Current price $7.99

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 $7.99 - Original price $7.99
Original price
$7.99
$7.99 - $7.99
Current price $7.99
Original price $23.99 - Original price $23.99
Original price
$23.99
$23.99 - $23.99
Current price $23.99

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 $5.49 - Original price $5.49
Original price
$5.49
$5.49 - $5.49
Current price $5.49

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 $5.49 - Original price $5.49
Original price
$5.49
$5.49 - $5.49
Current price $5.49
Original price $12.99 - Original price $12.99
Original price
$12.99
$12.99 - $12.99
Current price $12.99

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...

View full details
Original price $12.99 - Original price $12.99
Original price
$12.99
$12.99 - $12.99
Current price $12.99
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

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 $27.99 - Original price $27.99
Original price
$27.99
$27.99 - $27.99
Current price $27.99

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

Only 3 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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$27.99
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Current price $27.99
Original price $5.49 - Original price $5.49
Original price
$5.49
$5.49 - $5.49
Current price $5.49

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
Original price
$5.49
$5.49 - $5.49
Current price $5.49
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

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
Original price
$7.99
$7.99 - $7.99
Current price $7.99
Original price $7.99 - Original price $7.99
Original price
$7.99
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Current price $7.99

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

Only 12 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
Original price $15.99 - Original price $15.99
Original price
$15.99
$15.99 - $15.99
Current price $15.99

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
Original price
$15.99
$15.99 - $15.99
Current price $15.99
Original price $53.99 - Original price $53.99
Original price
$53.99
$53.99 - $53.99
Current price $53.99

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

Only 8 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
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

Only 12 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 $20.99 - Original price $20.99
Original price
$20.99
$20.99 - $20.99
Current price $20.99

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

12+ in stock

This version of the "Fleet" LED turn signal has a built-in Grote 3-pin plug in the back. This is the round plug with evenly spaced pins, not the mo...

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Original price $20.99 - Original price $20.99
Original price
$20.99
$20.99 - $20.99
Current price $20.99
Original price $7.39 - Original price $7.99
Original price
$7.39 - $7.99
$7.39 - $7.99
Current price $7.39

4" round chrome plastic light bezel w/shine-through mirror coating

12+ in stock

Fits over standard 4" round rubber grommets. Works best with low-profile lights that do not stick out past the grommet. Not compatible with high-pr...

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Original price $7.39 - Original price $7.99
Original price
$7.39 - $7.99
$7.39 - $7.99
Current price $7.39
Original price $34.99 - Original price $34.99
Original price
$34.99
$34.99 - $34.99
Current price $34.99

Pearl 4" LED sleeper load light w/1156 plug - Blue

Only 8 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
Original price $49.99 - Original price $49.99
Original price
$49.99
$49.99 - $49.99
Current price $49.99

Dual Revolution Red/Green 4" round 19 diode LED stop/turn/tail and auxiliary light - CLEAR lens

Only 8 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 $49.99 - Original price $49.99
Original price
$49.99
$49.99 - $49.99
Current price $49.99
Original price $22.99 - Original price $22.99
Original price
$22.99
$22.99 - $22.99
Current price $22.99

"Halo" Red 4" round LED stop/turn/tail light

Only 11 left!

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
Original price $53.99 - Original price $53.99
Original price
$53.99
$53.99 - $53.99
Current price $53.99

Dual Revolution Red/Blue 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...

View full details
Original price $53.99 - Original price $53.99
Original price
$53.99
$53.99 - $53.99
Current price $53.99
Original price $23.99 - Original price $23.99
Original price
$23.99
$23.99 - $23.99
Current price $23.99

Pearl amber 4" round 24 diode LED turn signal light - CLEAR lens

Only 9 left!

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 $19.99 - Original price $19.99
Original price
$19.99
$19.99 - $19.99
Current price $19.99

"Mirage" Red 4" round 24 diode LED stop/turn/tail light

Only 10 left!

The unique "Mirage" series turn signals feature a ring of LED light around the outer edge, with a center "tunnel" visual effect that makes the ligh...

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Original price $19.99 - Original price $19.99
Original price
$19.99
$19.99 - $19.99
Current price $19.99
Original price $4.99 - Original price $4.99
Original price
$4.99
$4.99 - $4.99
Current price $4.99

4" round chrome plastic light holding rim/mounting flange

12+ 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
Original price $12.99 - Original price $12.99
Original price
$12.99
$12.99 - $12.99
Current price $12.99

Red 4" round 8 diode LED stop/turn/tail light - CLEAR lens

12+ in stock

Here's a practical, super-effective light that's just as at home on a show truck as it is on every truck in the fleet. Mounts into a standard 4" ru...

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Original price $12.99 - Original price $12.99
Original price
$12.99
$12.99 - $12.99
Current price $12.99
Original price $18.99 - Original price $18.99
Original price
$18.99
$18.99 - $18.99
Current price $18.99

"Fleet" Red 4" round 18 diode LED stop/turn/tail light w/Twist N Lock chrome plastic bezel - flange mount, 3 prong pigtail - CLEAR lens

Only 10 left!

This light has a built-in 3 prong female plug on the back. This is a surface mount light - not a grommet mount.

Original price $18.99 - Original price $18.99
Original price
$18.99
$18.99 - $18.99
Current price $18.99
Original price $34.99 - Original price $34.99
Original price
$34.99
$34.99 - $34.99
Current price $34.99

Pearl 4" LED sleeper load light w/1156 plug - Green

Only 10 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
Original price $18.99 - Original price $18.99
Original price
$18.99
$18.99 - $18.99
Current price $18.99

"Fleet" Red 4" round 18 diode LED surface mount stop/turn/tail light w/Twist N Lock chrome bezel, 3 wires (no plug)

Only 8 left!

This is not a grommet mount light. It is a surface mount light, perfect for applications like replacing the load lights in the back of your sleeper...

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Original price $18.99 - Original price $18.99
Original price
$18.99
$18.99 - $18.99
Current price $18.99
Original price $72.99 - Original price $72.99
Original price
$72.99
$72.99 - $72.99
Current price $72.99

Dual Revolution Red/White 4" round 19 diode LED turn signal/backup light w/flange

Only 1 left!

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

View full details
Original price $72.99 - Original price $72.99
Original price
$72.99
$72.99 - $72.99
Current price $72.99
Original price $59.99 - Original price $59.99
Original price
$59.99
$59.99 - $59.99
Current price $59.99

Dual Revolution Red/Purple 4" round 19 diode LED turn signal w/flange

Only 11 left!

This is a fantastic light for multiple applications - rear utility lights in the sleeper, mudflap hanger lights, and more. It is hard wired with fo...

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Original price $59.99 - Original price $59.99
Original price
$59.99
$59.99 - $59.99
Current price $59.99
Original price $7.50 - Original price $7.50
Original price
$7.50
$7.50 - $7.50
Current price $7.50

"Competition Series" Red 4" round 7 diode LED stop/turn/tail light - CLEAR lens

12+ in stock

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 $7.50 - Original price $7.50
Original price
$7.50
$7.50 - $7.50
Current price $7.50
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

Only 9 left!

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 ...

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Original price $34.99 - Original price $34.99
Original price
$34.99
$34.99 - $34.99
Current price $34.99
Original price $59.99 - Original price $59.99
Original price
$59.99
$59.99 - $59.99
Current price $59.99

Dual Revolution Red/Green 4" round 19 diode LED turn signal w/flange

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...

View full details
Original price $59.99 - Original price $59.99
Original price
$59.99
$59.99 - $59.99
Current price $59.99
Original price $16.99 - Original price $16.99
Original price
$16.99
$16.99 - $16.99
Current price $16.99

Maxxima red 4" round 9 diode LED stop/turn/tail light

12+ in stock

We featured this light in Chrome Time Webisode 3.Features: Fits any standard 4" rubber grommet or mounting flange. Built-in three-prong female plug...

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Original price $16.99 - Original price $16.99
Original price
$16.99
$16.99 - $16.99
Current price $16.99
Original price $45.99 - Original price $45.99
Original price
$45.99
$45.99 - $45.99
Current price $45.99

Maxxima Amber 4" round 24 diode LED strobe/warning light

Only 5 left!

This ultra-thin (1-1/4" deep) light has 7 different selectable flash patterns - a rarity among 4" round grommet mount lights! It can also be set on...

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Original price $45.99 - Original price $45.99
Original price
$45.99
$45.99 - $45.99
Current price $45.99
Original price $18.99 - Original price $18.99
Original price
$18.99
$18.99 - $18.99
Current price $18.99

"Fleet" Red 4" round 18 diode LED surface mount stop/turn/tail light w/Twist N Lock chrome bezel, 3 wires (no plug) - CLEAR lens

Only 7 left!

This is not a grommet mount light. It is a surface mount light, perfect for applications like replacing the load lights in the back of your sleeper...

View full details
Original price $18.99 - Original price $18.99
Original price
$18.99
$18.99 - $18.99
Current price $18.99
Original price $22.99 - Original price $22.99
Original price
$22.99
$22.99 - $22.99
Current price $22.99

Maxxima red 4" round 32 diode LED stop/turn/tail light

Only 12 left!

This light requires the use of either a rubber grommet or mounting flange.This light has a built-in three-prong female plug in the back.These light...

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Original price $22.99 - Original price $22.99
Original price
$22.99
$22.99 - $22.99
Current price $22.99
Original price $34.99 - Original price $34.99
Original price
$34.99
$34.99 - $34.99
Current price $34.99

Pearl 4" LED sleeper load light w/1156 plug - Green - CLEAR LENS

Only 8 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