Best Lights For Semi Trucks: Cab, Marker and Fender Options

#1 · Best Overall

1. Partsam 31LED Cab Marker Light

• Voltage: 12 V

Best for: High-output amber roof running lights.

Why it ranks #1: Its listing names several heavy-truck makes, specifies 12V, and identifies roof, running, and clearance use with 31 LEDs per light.

Thirty-one LEDs per lamp distinguish this Partsam cab-roof set for buyers seeking amber running and clearance lights with a dense LED array. The five-light configuration and chrome base are presented as an incandescent replacement for named heavy-duty truck makes, including Peterbilt, Kenworth, Freightliner, Western Star, Mack, and International.

Five amber lights provide a matched set for cab-roof marker, roof-running, or clearance use. With 31 LEDs in each lamp, the specified array offers more individual light points than a small LED marker, while the chrome base forms part of the stated OEM replacement assembly. Partsam lists compatibility with several heavy-duty truck brands, making this a focused replacement option rather than a universal marker pack. The listed voltage is 12V, so that electrical requirement should guide the installation choice.

Skip it if you need a 12–24V universal marker kit; PSDRIQQ's 40-pack amber set lists that range and includes mounting screws and foam pads.

Choose these for a 12V heavy-duty truck needing five amber cab-roof running or clearance lights, especially among the listed makes. The 31-LED array and chrome base suit replacement use, but voltage remains a firm fit consideration.

Listed on Amazon as: Partsam 31LED Amber Cab Marker Light Waterproof Top Roof Running Cab Lights Compatible with Peterbilt/Kenworth/Freightliner//Western Star/Mack/International/Paccar Trailer Trucks

#2 · Best Cab Fit

2. Partsam 6LED Cab Marker Lights

• Voltage: 12 V
• Lens Material: Polycarbonate

Best for: Amber cab-roof marker set.

Why it ranks #2: These 12V roof-mounted amber lights are listed as an exact-fit replacement for Freightliner and also fit other trucks and trailers.

Six LEDs in each of five amber lamps make this Partsam set a focused choice for truck cab-roof marking. Its IP65-sealed polycarbonate lens and housing support operation in heavy rain or snow, while the listed Freightliner compatibility gives buyers a specific heavy-duty truck fit reference.

The five-piece quantity suits a cab-roof marker installation, and six LEDs per light provide the stated bright output for improved nighttime visibility. The IP65 waterproof construction combines a polycarbonate lens and housing, supporting use in rain or snow. Partsam lists these as an exact-fit replacement for Freightliner and says they can also be used on other 12V trucks, trailers, tractors, semi-trailers, dump trucks, and special vehicles. The amber color keeps this set dedicated to marker applications.

Skip it if you need a larger roof-light set; Partsam's 31LED amber cab marker lights provide a five-light roof-running option with more LEDs per lamp.

This suits truck owners replacing or adding five amber cab-roof markers, particularly on listed Freightliner applications. The 12V compatibility and IP65 construction are useful fit points; it is not a broad mixed-color kit.

Listed on Amazon as: Partsam 6LED Amber Cab Marker Lights – Waterproof Roof Mount Clearance Lights for Trucks, Compatible with Freightliner/Volvo Heavy Duty Trucks & Trailers (5 Pack)

#3 · Best Fender Signal

3. yucenbra Pedestal Fender Lights

• Voltage: 12 V
• Lens Material: Polycarbonate

Best for: Adjustable dual-face fender signals.

Why it ranks #3: Designed as semi-truck turn signals, these 12V pedestal lights combine amber and red dual-face output with a four-wire color-coded system.

Dual-axis adjustability lets these yucenbra pedestal fender lights be aimed to suit their mounting position. The pair combines red and amber faces with a strobe function, offering a truck owner a multi-function signal and marker fixture for listed heavy-duty makes including Freightliner, Peterbilt, Kenworth, Mack, and Western Star.

The two lights use a 12-LED dual-face red-and-amber arrangement, giving a fender-mounted fixture more than one signaling color. A four-wire color-coded system assigns black to ground, red to high beam, blue to low beam, and yellow to strobe, helping installers identify connections. The IP65-rated housing is specified for wet-weather use, while dual-axis adjustment supports aiming after mounting. The listed voltage is 12V, so the connection plan should match that vehicle system.

Skip it if you need a 10–30V pedestal light; Partsam's double-face fender lamps list that wider range and use red and amber faces.

These fit 12V heavy-duty truck owners seeking adjustable pedestal fender lights with red, amber, and strobe functions. The color-coded wires aid installation, while the 12V listing remains an important electrical boundary.

Listed on Amazon as: 2PCS Pedestal Fender Lights, 12LED Semi Truck Turn Signal with Strobe Amber Red Dual Face Marker Light for Freightliner Peterbilt Kenworth Mack Western Star

#4 · Largest Marker Set

4. Ledvillage 6.4-Inch Marker Lights

• Voltage: 12 V DC
• Lens Material: Polycarbonate

Best for: Long amber truck side markers.

Why it ranks #4: The 20-piece set provides clear-lens amber lamps, a chrome bezel, and listed compatibility with several heavy-truck makes at 12V.

At 6.4 inches long, these clear-lens Ledvillage lamps offer a longer amber marker profile than miniature bullet lights. The 20-piece set pairs that shape with 12 SMD diodes per lamp, giving truck and trailer owners a substantial quantity for side, indicator, fender, or other listed lighting positions.

The 6.4-by-1.9-inch housing gives buyers a broad marker shape, while the 12 amber diodes per lamp provide the stated high-brightness LED arrangement. A chrome bezel and clear polycarbonate lens form the visible fixture, and the listed 7-inch wire ends connect to the vehicle wiring. The 20-lamp quantity supports multiple positions or vehicles. Compatibility is specified for most 12V DC vehicles, including named heavy-duty truck makes, so this is not the listed choice for a 24V system.

Skip it if you need a 24V-rated set; PSDRIQQ's 20-pack amber kit lists 12–24V operation and uses smaller marker lamps.

These suit 12V truck and trailer owners seeking long amber side, indicator, or fender lamps in a 20-piece quantity. Plan for the 6.4-inch fixture dimensions and the stated 12V electrical system.

Listed on Amazon as: 20 Pcs 6.4 Inch Clear Lens Amber LED Side Marker Turn Signal Lights Clearance Parking Lamps for Truck Trailer Lorry Tow RV w/Chrome Universal 12V DC BB12

#5 · Dual-Face Option

5. Partsam Double-Face Pedestal Lights

• Voltage: 12 V
• Lens Material: Polycarbonate

Best for: Dual-face fender signal lamps.

Why it ranks #5: Each post-mount lamp provides 24 red LEDs rearward and 24 amber LEDs forward, and the listing specifies 10–30V.

A forward-facing amber side and rear-facing red side put two signaling directions into each Partsam pedestal light. The pair uses a 4.15-inch round housing with 24 LEDs on each face, giving trailer and truck owners a fender-mounted option that combines clearance and rearward signaling in one fixture.

The dual-face arrangement places amber light toward the front and red toward the rear, so one fender-mounted lamp can mark both directions without separate single-face fixtures. Each face has 24 LEDs, with a faceted reflector intended to increase light output. The 10–30V listing supports a wider voltage range than a 12V-only lamp, and the polycarbonate lens is specified for trailer, RV, truck, and tractor use. Its post-mount format and 4.15-inch diameter make mounting space a key consideration.

Skip it if you need slim flush-mounted markers; Ledvillage's 6.4-inch side lamps use a different elongated fixture format.

Choose these for truck or trailer fenders where forward amber and rearward red signaling belong in one pedestal fixture. Confirm the mounting area can accommodate the 4.15-inch round housing and post-mount arrangement.

Listed on Amazon as: Partsam 2Pcs Double Face Round LED Pedestal Lights Fender Stop Turn Signal Tail Brake Lights Clear Lens 48 LED Post Mount Semi Trailer Replacement for Trailers Trucks, 10-30V

#6

6. PSDRIQQ 6LED Marker Light Kit

• Voltage: 12 V DC

Best for: Bulk six-LED amber marking.

Why it ranks #6: This 40-piece amber kit has six LEDs per lamp and is listed for 12–24V vehicles, including trucks and semi-trailers.

Forty lamps, each with six LEDs, make this PSDRIQQ kit a high-quantity option for owners marking a truck, trailer, or several vehicles. The amber lights are listed for 12–24V vehicles, enabling broad placement across many vehicle types without limiting the kit to a single listed voltage.

The 40-light quantity supports extensive marker coverage, and six LEDs in each lamp are described as highly visible in daylight, nighttime, and poor weather. Listed compatibility spans 12–24V trucks, trailers, tractors, RVs, boats, and more, supporting use across different vehicle categories. Forty foam pads and 80 screws accompany the lamps, providing mounting materials for installation. The set is amber-only, so buyers who need red rear markers will need a separate color-specific solution.

Skip it if you need red marker lamps in the same kit; TMH's 20-piece pack includes ten red and ten amber lights.

This bulk set suits owners adding amber clearance or side markers across a 12–24V truck, trailer, or fleet of listed vehicles. Its large quantity is useful for broad coverage, but it does not supply red lamps.

Listed on Amazon as: 40 Pack 6 LED Trailer Marker Light, DC12-24V Clearance Side Indicator Lamp for RV Camper Truck Van Caravan Boat – Amber

#7

7. TMH Bullet Marker Lights

• Voltage: 12 V DC

Best for: Mixed-color bullet marker set.

Why it ranks #7: The 20-piece 12V set includes 10 amber and 10 red bullet markers, with listed waterproof, shockproof, and dustproof construction.

Ten amber and ten red bullet lights give this TMH pack a useful split for buyers marking different sides or positions on a truck or trailer. Each 3/4-inch lamp is rated at 60 lumens, offering a compact marker format with specified output rather than a single-color bulk pack.

The 20-light combination supplies ten lamps in each color, helping buyers plan amber and red positions from one set. Three SMD LEDs per light and a stated 60-lumen output provide concrete brightness information for comparing marker options. The PC lens is described as waterproof, shockproof, and dustproof, while rubber covers are included to support installation and protect the small bullet lights. The listed 12V DC supply limits the stated electrical match to 12V systems.

Skip it if you need a 12–24V marker set; PSDRIQQ's 20-pack amber kit lists that wider voltage range, though it has no red lamps.

Pick this pack when a 12V truck, trailer, RV, car, bus, or van needs compact markers in both amber and red. The small 3/4-inch format and listed 12V supply should match the mounting plan.

Listed on Amazon as: TMH 3/4 Inch Mount 10 pcs Amber + 10 pcs Red LED Clearance Bullet Side LED Marker Lights for Trailer Truck RV Car Bus Van (Pack of 20)

#8

8. PSDRIQQ 2LED Marker Light Kit

• Voltage: 12 V DC

Best for: Multi-point amber trailer marking.

Why it ranks #8: This 20-piece amber marker kit accepts 12–24V and is listed for trucks and semi-trailers, though each lamp has two LEDs.

A 20-light amber kit gives truck and trailer owners a substantial set of marker lamps for outlining a vehicle. Each lamp has two LEDs, and the listed 12–24V range covers many vehicle electrical systems, making the set useful for adding clearance or side visibility across a longer combination.

The 20 included amber lamps let buyers distribute markers across a truck, trailer, van, or RV rather than sourcing a small set for each vehicle. Two LEDs per lamp are described as visible in daylight as well as at night or in poor weather, supporting recognition in more conditions. The listed 12–24V compatibility extends use across many vehicle types. Forty screws are included, giving installers mounting hardware for the full set, though wiring details are not specified.

Skip it if you need red rear markers or a smaller set; TMH's 20-piece pack includes both amber and red lamps.

Choose this set if you need many amber markers for a truck, semi-trailer, RV, or other listed 12–24V vehicle. Its quantity suits broad coverage, but buyers needing mixed-color marking should select a set with red lamps.

Listed on Amazon as: LED Trailer Lights Kit Front Rear Side Marker Clearance Indicators Light Lamp, 20Pack Amber DC12-24V 2.5" Waterproof Universal for RV Camper Truck Van Caravan Boat

#9

9. Partsam Mini Watermelon Lights

• Voltage: 12 V
• Lens Material: Plastic

Best for: Dual-mode amber clearance lights.

Why it ranks #9: The 12V amber mini lights offer strobe and constant functions for side clearance or warning use, but their listing is less truck-specific.

Switching between strobe and constant illumination is the defining feature of these ten Partsam watermelon lights. The dual function lets a truck or trailer owner choose warning flashes or steady marker lighting, while the compact 3/4-inch format suits buyers seeking small side-clearance lamps rather than larger fixtures.

Ten amber lights provide a coordinated set for truck, trailer, or RV clearance positions. Their 3/4-inch size makes them a mini-light option, while the strobe and constant modes support both flashing warning use and steady marking. A clear plastic lens preserves the stated amber-light configuration, and IP67 waterproofing supports use in wet conditions. The listed 12V supply is a narrower electrical match than a 12–24V marker kit, so check that against the vehicle system before planning installation.

Skip it if you need 24V compatibility or a larger multi-color set; TMH's 20-piece amber-and-red marker pack is listed at 12V only as well.

This set suits 12V truck, trailer, and RV owners who want compact amber clearance lights with a choice of steady or strobe operation. Its 3/4-inch size and single listed voltage are important fit considerations.

Listed on Amazon as: Partsam 10Pcs Mini Watermelon Lights, 3/4 Inch Strobe & Constant Dual Function Amber LED Watermelon Lights, Clear Lens Side Clearance Tail Grille Flash Lights for 12V Trailer Truck RV

#10

10. Nilight Round Reverse Lights

• Voltage: 12 V
• Lens Material: Abs

Best for: White round reverse lighting.

Why it ranks #10: This 12V pair supplies white reverse light from 24 LEDs per lamp, but its reverse-light function is less versatile for general truck marking.

A 24-LED white output makes this Nilight pair a reverse-light option rather than an amber clearance set. Each lamp is a 4-inch round fixture with a chrome bezel, giving truck and trailer owners a compact white-light assembly for rearward use where a round tail-light format fits.

Each round light uses 24 SMD LEDs to produce the listed bright white output, making the pair appropriate for reverse-light use rather than colored side marking. The 4-inch format and chrome bezel give the installation a defined footprint, while an impact-resistant AS lens and ABS bottom shell protect the electronic components. Each lamp includes a three-prong plug and mounting screws and nuts, supporting a straightforward connection and mounting workflow on listed 12V trucks or trailers.

Skip it if you need amber side markers instead of white reverse lights; Partsam's five-piece 6LED cab marker set supplies amber roof lighting.

Choose this pair for a 12V truck or trailer needing round white reverse lights with a three-prong plug. Its 4-inch format and white output suit rearward lighting, not amber clearance or cab marking.

Listed on Amazon as: Nilight Trailer Tail Light 4" Round White Reverse Lights W/Chrome Bezel