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Blue Ox
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2015 - 2020 Ford F-150
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Easy Installation: The BX88366 EZ Light wiring harness is designed for a quick and easy installation process that can be done in as little as 15 minutes.
Installation Required Yes/No: Yes
Mounting Hardware Included Yes/No: Yes
Terminal Type: 4-Way Flat
2770: No
488: Yes
Enjoy a seamless connection between your RV and your towed automobile with the Blue Ox BX88366 EZ Light Wiring Harness. Designed to simplify the process of connecting your RV electrical system to your car, this kit allows you to set up everything in as little as 15 minutes. No more wasting precious time on complex wiring tasks. Plus, installation is made even easier with the included mounting hardware. The terminal type is a convenient 4-way flat, making it compatible with a variety of vehicles and setups.

Blue Ox is known internationally for recreational and commercial towing products, manufacturing in Pender, Nebraska since 1925. The line covers tow bars and vehicle-specific baseplates for flat towing behind a motorhome, sway control and weight distributing hitches, supplemental braking accessories and towing wiring, backed by patented designs and long-standing customer service.
Blue Ox has manufactured since 1925 and is recognised internationally for towing products and customer service. The company operates from Pender, Nebraska, where it grew out of Automatic Manufacturing Co., a business that started with cattle oilers and developed into agricultural equipment, tractor accessories and trailer towing hardware. That agricultural engineering heritage still shows in how the towing products are built, and the company holds patents across weight distribution, fifth wheel and tow bar designs.
Flat towing is the discipline Blue Ox is best known for. Towing a car with all four wheels on the ground behind a motorhome demands a system that stays rigid under braking, articulates properly over uneven ground, and connects to the towed vehicle at points strong enough to take the load. Blue Ox tow bars handle the first two, with self-aligning arms that latch under tension and release without a struggle when the load is off them. Vehicle-specific baseplates handle the third, engineered per make and model to tie into structural mounting points behind the fascia.
The wider flat towing range covers supplemental braking systems, safety cables and the accessories that make a complete legal setup, along with baseplate wiring and dinghy towing harnesses that pass lighting signals to the towed vehicle without back-feeding its electrical system.
For conventional trailer towing, Blue Ox weight distributing hitches with integrated sway control transfer tongue load onto the tow vehicle's front axle and resist the yaw that crosswinds and passing trucks induce.
The company describes its foundation as customer service, designing around what owners actually ask for, and it runs an RV park adjacent to the factory where customers can stay. Sister operations at the same Nebraska site include Automatic grain roller mills and MAD-RAMPS pivoting ramp systems.
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1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2015 - 2020 | Ford F-150 | — |
Yes, the BlueOx EZ Light Wiring Harness Kit For Select FORD F150 BX88366 (Part #FDRWBX88366) is designed to fit the 2015-2020 Ford F-150.
The BlueOx EZ Light Wiring Harness Kit For Select FORD F150 BX88366 (Part #FDRWBX88366) fits 2015-2020 Ford F-150 models. The 2020 model year is the last year covered by this part number. For newer models, check for an updated version.
The BlueOx EZ Light Wiring Harness Kit For Select FORD F150 BX88366 (Part #FDRWBX88366) fits the following vehicles: 2015-2020 Ford F-150. Always verify your specific year, make, and model before ordering.
The BlueOx EZ Light Wiring Harness Kit For Select FORD F150 BX88366 (Part #FDRWBX88366) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
The BX88366 is a wiring harness kit designed to connect an RV electrical system to a vehicle's taillights and provide a 4-way flat trailer connector at the front of the vehicle. It includes a converter box, wiring harness, double stick tape, zip ties, a grounding screw, and a ring terminal for the ground wire.
The manual does not specify which vehicle makes, models, or years are compatible with the BX88366. Contact Blue Ox customer service at (402) 385-3051 or consult a fitment database to confirm compatibility with your specific vehicle before purchasing.
You will need a drill with a 3/32" drill bit to create the grounding hole. A screwdriver is required to secure the grounding wire ring terminal. Zip ties are provided in the kit for securing wiring. A cleaning tool or wire brush is needed to clean the grounding area of dirt, paint, and rust proofing material.
The kit includes a converter box, a wiring harness with an inline connector, a 4-way flat harness, double stick tape for mounting the converter box, zip ties for securing wiring, a grounding screw, and a ring terminal for the ground wire. The manual does not specify whether a 4-way flat bracket is included.
The inline connector is located at the rear of the vehicle, adjacent to the bumper on the driver's side. It has a harness leading to the taillights. This is where you will disconnect and plug in the wiring kit.
The manual does not specify whether battery disconnection is required. Contact Blue Ox customer service at (402) 385-3051 for guidance on this safety step before beginning installation.
Locate the inline connector at the rear of the vehicle adjacent to the bumper on the driver's side. Disconnect the existing connector. Plug the wiring kit end into the mating plug, then disconnect the original connector harness from the kit. The converter box will process the taillight signals for the RV system.
Find a clean, suitable area for the converter box, typically near the rear of the vehicle where the inline connector is located. Mount it using the double stick tape provided in the kit. Ensure the location allows the wiring to route toward the front of the vehicle without excessive bending or pinching.
Route the 4-way flat harness from the converter box toward the front of the vehicle, securing it with zip ties at regular intervals to prevent movement and damage. Avoid routing near hot surfaces, sharp edges, or moving parts. The harness should reach a convenient location at the front where you will mount the 4-way flat bracket or socket.
You have two options: (1) Install the 4-way flat harness into a 4-way flat bracket and mount the bracket at a convenient location at the front of the vehicle, or (2) Cut off the harness plug and splice the wires into your preferred style of trailer plug socket. The manual does not specify whether the bracket is included in the kit.
Yes. You must drill a 3/32" hole to secure the white ground wire with a ring terminal. The hole should be drilled at a suitable grounding point near the connector. Do not drill into any exposed surfaces, the vehicle floor, or the bed. Clean dirt, paint, and rust proofing material from the area before drilling.
Drill a 3/32" hole at a suitable grounding point near the connector. This hole is for securing the white ground wire ring terminal with the screw provided in the kit.
Locate a suitable grounding point near the inline connector at the rear of the vehicle. The grounding point should be on a clean metal surface. Do not drill into any exposed surfaces, the vehicle floor, or the bed. Clean dirt, paint, and any rust proofing material from the area before drilling the 3/32" hole.
The white wire is the ground wire. It must be secured to a suitable grounding point on the vehicle using the ring terminal and screw provided. The grounding area must be cleaned of dirt, paint, and rust proofing material before installation.
Yes. Apply a small amount of dielectric grease to the 4-way flat terminals to prevent corrosion. This should be done before final connection to the RV electrical system.
Connect the harness to the RV electrical system. With the engine running, test all functions to ensure proper operation. The manual does not provide specific testing procedures beyond this general instruction. If functions do not work correctly, contact Blue Ox customer service at (402) 385-3051.
Do not drill into any exposed surfaces or the vehicle floor or bed. These areas may contain fuel lines, brake lines, electrical systems, or structural components that could be damaged. Always clean the grounding area of dirt, paint, and rust proofing material before drilling to ensure a solid electrical connection.
The manual does not specify compatible vehicle makes, models, or years. Contact Blue Ox at (402) 385-3051 or check a fitment database before purchasing.
You need a drill with a 3/32" bit, a screwdriver, and a wire brush or cleaning tool. Zip ties are included in the kit.
The manual does not specify whether professional installation is required or recommended. Contact Blue Ox at (402) 385-3051 if you are unsure about your ability to complete the installation safely.
Yes. Apply a small amount of dielectric grease to the 4-way flat terminals before connecting to the RV electrical system to prevent corrosion.
Connect to the RV electrical system and test all functions with the engine running to ensure proper operation.
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