Truck-Lite 77209 Left-Hand Stop/Turn/Tail Wiring Harness – 60 Inches

Restore dependable rear trailer lighting with the Truck-Lite 77209 Left-Hand Stop/Turn/Tail Wiring Harness, featuring a 60-inch (5-foot) length for compatible commercial trailer electrical systems.

Designed for the left-hand rear lighting position, this replacement harness is used in trailer rear bumper wiring arrangements to connect compatible stop, turn, and tail lighting components.

The 60-inch configuration is also documented as Truck-Lite 77209-60, a left-hand stop, turn, and marker/clearance harness used in specified commercial trailer electrical systems.

Whether you're repairing damaged wiring, replacing an existing harness, or performing electrical maintenance on a roll-off trailer, this Truck-Lite harness provides a replacement option for compatible installations.

Truck-Lite Part Number: 77209

Documented 60-Inch Reference: 77209-60

Roll Off Truck & Trailer Parts SKU: LT179

Harness Length: 60 Inches (5 Feet)

Installation Position: Left-Hand Rear

IMPORTANT: THIS LISTING INCLUDES ONE LEFT-HAND WIRING HARNESS ONLY. THE RIGHT-HAND HARNESS AND TRAILER LIGHT ASSEMBLIES ARE SOLD SEPARATELY.

Features & Benefits

• Truck-Lite Part #77209: Manufacturer part-number reference helps identify the correct replacement harness.

• 60-Inch Length: Five-foot harness for compatible rear trailer lighting installations.

• Left-Hand Configuration: Intended for the left-side rear lighting arrangement.

• Stop Light Wiring: Provides connections for the applicable rear brake light circuit.

• Left Turn Signal Wiring: Supports the left-hand turn signal circuit.

• Tail Light Application: Intended for the compatible trailer rear running light arrangement.

• Marker/Clearance Application: The documented 77209-60 configuration is associated with marker and clearance lighting.

• Replacement Rear Bumper Harness: Allows replacement of damaged wiring without necessarily replacing the complete trailer wiring system.

• Commercial Trailer Application: Used in compatible heavy-duty trailer electrical systems.

• Right-Hand Version Available: Truck-Lite 77208 is offered separately for the opposite side.

Product Specifications

Replacement Harness for Left-Hand Trailer Rear Lighting

Commercial trailers rely on wiring harnesses to connect the main electrical system to individual lighting assemblies.

The Truck-Lite 77209 left-hand harness is intended for compatible trailer rear lighting configurations requiring a dedicated left-side wiring section.

Depending on the exact harness and trailer configuration, the connected lighting functions may include:

Stop Lights

Provide the electrical connection for the appropriate rear brake lighting circuit.

Left Turn Signal

Connect the left-hand rear turn signal circuit so approaching drivers can see when the vehicle is turning.

Tail Lights

Support the applicable rear running light circuit during nighttime driving or when the vehicle's lighting system is activated.

Marker and Clearance Lights

The documented 77209-60 configuration also supports marker/clearance applications on specified commercial trailer electrical systems.

Important: Compare the actual harness connectors and lighting branches with your original wiring before ordering.

60-Inch Wiring Harness for Commercial Trailers

The 60-inch harness length is an important specification when replacing trailer rear bumper wiring.

A replacement harness must provide adequate length to reach its mating electrical connections while allowing proper routing and secure mounting.

Incorrect harness length can create excessive tension, interfere with routing, or prevent the connectors from reaching the intended components.

Before ordering, measure the original wiring harness and compare the connector locations.

Truck-Lite 77209 Left-Hand vs. 77208 Right-Hand Harness

Truck-Lite uses separate left-hand and right-hand harnesses in documented trailer lighting configurations.

Truck-Lite 77209 — Left-Hand Harness

• 60-inch length

• Left-hand rear lighting position

• Stop/turn/tail application

• Store SKU LT179

Truck-Lite 77208 — Right-Hand Harness

• 60-inch length

• Right-hand rear lighting position

• Stop/turn/tail application

• Store SKU LT180

The Etnyre Blackhawk RTN parts manual identifies the 60-inch configurations as 77209-60 for the left and 77208-60 for the right.

The left-hand and right-hand versions should not be assumed interchangeable.

Need the right-hand harness?

Shop Truck-Lite 77208 Right-Hand Stop/Turn/Tail Wiring Harness – 60"

Documented Trailer Application

The Truck-Lite 77209-60 harness appears in Etnyre Blackhawk RTN Series trailer electrical parts documentation.

That manufacturer's parts breakdown identifies:

These are documented components within a particular trailer wiring configuration.

This does not establish universal compatibility with all Etnyre trailers or with every trailer using Truck-Lite electrical components.

Common Applications

This replacement harness is intended for compatible commercial trailer electrical systems, including applications involving:

• Roll-off trailer rear bumper wiring

• Left-hand rear trailer lighting

• Commercial trailer stop/turn/tail circuits

• Heavy-duty trailer electrical maintenance

• Waste and recycling trailer wiring

• Construction and equipment trailer lighting

• Replacement of damaged rear lighting harnesses

Always confirm the original part number, harness length, and connectors for your specific trailer.

Signs Your Trailer Wiring Harness May Need Replacement

Commercial trailer wiring is exposed to moisture, road debris, vibration, salt, and repeated flexing.

Over time, harnesses or electrical connectors can become damaged, causing unreliable lighting operation.

Common symptoms include:

• Left rear turn signal not functioning

• Brake light not illuminating

• Intermittent tail light operation

• Cracked or broken electrical connectors

• Corroded terminals

• Cut, pinched, or frayed wires

• Damaged insulation

• Electrical problems traced to the rear bumper harness

Lighting failures can also result from faulty lamps, wiring grounds, the main electrical harness, or the towing vehicle.

Inspect the complete electrical system before replacing the harness.

How to Verify the Correct Replacement Harness

Before ordering, compare this harness with your existing trailer wiring.

1. Confirm the Part Number

Check for Truck-Lite 77209 or the documented 60-inch reference 77209-60.

2. Verify the Installation Side

This is the left-hand rear harness, determined while facing the vehicle's normal forward travel direction.

3. Measure the Harness Length

Confirm that your application requires a 60-inch (5-foot) harness.

4. Compare Connector Shapes

Inspect the original connector bodies, plug orientation, and mating connections.

5. Check Connector Count

Verify the number of lamp connections and electrical branches required by your trailer.

6. Confirm the Lighting Configuration

Check stop, turn, tail, and applicable marker/clearance lighting connections.

7. Inspect the Main Wiring System

Confirm that the replacement can connect correctly to your existing trailer wiring or electrical distribution module.

Important: Matching the part number and length is a strong starting point, but connector configuration and trailer compatibility must also be verified.

Frequently Asked Questions

What is Truck-Lite part number 77209?

Truck-Lite 77209 is a left-hand rear trailer lighting wiring harness reference for compatible commercial trailer electrical systems.

How long is this harness?

This harness measures 60 inches (5 feet).

Is this the left-hand or right-hand version?

This is the left-hand rear harness.

What is the documented 60-inch part reference?

Etnyre trailer parts documentation identifies the 60-inch left-hand version as 77209-60.

Does this harness support stop, turn, and tail lights?

This product is sold for compatible left-hand stop/turn/tail rear bumper applications. The 77209-60 configuration is also documented for marker/clearance lighting.

What is the matching right-hand harness?

The matching right-hand reference is Truck-Lite 77208, with the documented 60-inch version identified as 77208-60.

Can I use this harness on the right-hand side?

Do not assume so. Left-hand and right-hand harnesses may have different connector arrangements or circuit assignments.

Will this fit every roll-off trailer?

No. Verify the original wiring, harness length, electrical connectors, and trailer requirements.

Does it include the rear light assemblies?

No. This listing is for the left-hand wiring harness only.

Does it include the right-hand harness?

No. The right-hand harness is sold separately.

What is the store SKU?

The Roll Off Truck & Trailer Parts SKU is LT179.

Order Your Truck-Lite 77209 Left-Hand Wiring Harness

Restore your trailer's rear lighting connections with the Truck-Lite 77209 Left-Hand Stop/Turn/Tail Wiring Harness, featuring a 60-inch length for compatible commercial trailer electrical systems.

Truck-Lite Part Number: 77209

Length: 60 Inches (5 Feet)

Installation Position: Left-Hand Rear

Store SKU: LT179

Order your Truck-Lite 77209 replacement trailer wiring harness online today!

LEFT-HAND HARNESS ONLY — RIGHT-HAND HARNESS SOLD SEPARATELY.

Need the opposite side? Shop Truck-Lite 77208 Right-Hand Wiring Harness.

Fitment Note: Verify the original part number, harness length, lighting functions, and electrical connector configuration before purchasing.

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