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Trailer Wiring

Available Models for 1999 Ford Trailer Wiring


Trailer Wiring Harness

Make installing your trailer wiring harness as easy as possible with a custom fit wiring harness. Trailer wiring from Draw-Tite, Curt, Pollak, Tow Ready, Bosal, and Hopkins eliminates or reduces the need to cut and splice wires. It also helps to protect your vehicle's sensitive electronics from mis-wired trailers.

Choose the year of your vehicle to the left to find a custom fit trailer wiring harness.





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1999 Ford Questions and Answers


  • Tekonsha P3 Brake Controller, Part # 90195, Displays Message Output Shorted No Brakes
  • If your Tekonsha P3 Brake Controller, part # 90195, displays the error message OUTPUT SHORTED NO BRAKES, the potential causes are a short in the brake output circuit somewhere between the brake controller and the trailer brake assemblies, or a shorted or damaged brake magnet. Since you do have power reaching the trailer brake assemblies the issue is probably within them, rather than within the tow vehicle wiring, but if you wish you can still test the vehicle 7-way connector for a correct...
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  • Location of Back Up Lamp and Battery Charge Relays in 1999 Ford F250 Super Duty
  • In my research, I managed to download a copy of the Owners Manual for the 1999 F250 SD. I found that the Trailer Tow Back Up Lamp Relay is in position # 38 and the Battery Charge Relay is # 39. According to the diagram of the various locations in the power distribution box, location # 38 and 39 are not shown. The manual goes on to say that 38 and 39 are located in a smaller box that should be found adjacent to the larger box (closer to the brake master cylinder). I also found the same...
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  • What Color is the Brake Switch Wire to Use to Install a Draw Tite Activator Brake Controller
  • The wire you will want to use on your 1999 Ford Explorer should be a solid green wire. I would double-check with a circuit tester like the # 3808 to be sure. The 12 volt power source that runs to the 7-way is for auxiliary circuits like a winch or lights like you mentioned. In order for your brake controller to activate the brakes on your trailer you will not need to have this circuit wired up.
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  • Differences Between Reese Goose Box RP94622 and RP94623
  • In addition to having a higher towing and pin weight capacity, the # RP94623 will fit a few more applications than the # RP94622. Along with the Lippert 1621 and 1621HD, the # RP94623 will also fit the Lippert 0719 and the Fabex PB-600 series. When used with the # RP61301 spacer plate, either Goosebox will also fit the Lippert 0115, 1716 and 1116. I've linked you to product description videos for each Goosebox model.
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  • How to Reduce Eliminate Fifth Wheel Trailer Chucking
  • What you're referring to is called chucking, the unwanted fore and aft movement of the trailer. If the fifth wheel hitch you're using has a slide bar jaw or a two piece jaw that's worn and has lots of play in it, it would cause the chucking you're experiencing. Even though the king pin might be held by the hitch jaws so it's in no danger of popping out. If the jaws allow any play at all the king pin's rattling around in the hitch jaws will be transferred to the vehicle, which isn't very...
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  • Torque Specs for Reese Universal 5th Wheel Trailer Hitch Installation Kit
  • The Reese universal installation kit is # RP30035. I have included a link to the installation instructions to the right which contain the torque specifications you need. The brackets do not have to be bolted on if they are welded. But if you just want the peace of mind then you can certainly bolt them on.
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  • Where To Install Fuses and Relays From Tow Ready Wiring Harness # 118243 on 1999 Ford F-250 SD
  • On your 1999 Ford F-250 Super Duty the two boxes in the engine compartment are the power distribution box (larger box) and the trailer tow relay block (smaller box) which is attached to it. Open the covers to access the relays and fuses. You will need to look in your owners manual and locate the Trailer Tow Electric Brake and Trailer Tow Battery Charge fuse locations and insert the 30 amp maxi-fuses (provided) into them. Also in the owners manual locate the Trailer Tow Backup Lamp...
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  • Brake Controller Recommendation for a 1999 Ford F150
  • The brake controller we recommend is the Tekonsha Prodigy P2 Brake Controller # 90885. This controller is a fully proportional brake controller that applies the brakes of your trailer in the exact same speed and strength as your tow vehicle brakes. This style controller is much safer and easier on braking components than a time-delayed controller. For your truck you can use the wiring adapter # 3035-P, for a direct plug in application. I attached an FAQ article on brake controllers...
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  • Wiring Harness Connection Location On a 1999 Ford Explorer Limited with Tow Package
  • I see exactly what you are talking about. I checked the stock we have on hand and all of the # 118241 wiring harnesses have the pins in the 3 O-clock and 10 O-clock positions with the locking tab up. I then spoke with our installation tech and he feels that the directions for the 1999 Explorer are wrong. He says that he remembers having to use the connector that is on the drivers side and that the picture on our web page was taken following the manufacturers directions and never got corrected....
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  • How to Determine the Correct Wheel and Tire Replacements for a 1979 Wilderness Travel Trailer
  • In order to determine the correct replacement wheels and tires for your 1979 Wilderness travel trailer, there are a couple of things you will need to take a look at on your existing tires. You will need to consider the load range the tires will need to have for your trailer. The load range indicates the horizontal and sidewall strength of a tire. It is represented by a letter within each tire size. Each load range letter correlates to a specific number of tire plies and a load pressure...
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  • 7-Way OEM Replacement Trailer Wiring Harness for a 1999 Ford F-250 Super Duty
  • You can use the Curt T-Connector Wiring Harness, # C55243, or the Tow Ready Replacement 7-Way Harness, # 118243, on your 1999 Ford F-250 Super Duty. These are basically the same item for your truck made by different manufacturers. If the price point of the Curt harness is more appealing to you, then there is no reason why you cannot use that harness. There is one thing you will want to keep in mind when installing either of these harnesses, do not forget to install the relays and...
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  • Connecting Stowmaster Tow Bar # RM-501 to Steel Bumper on Jeep Wrangler
  • Tow bars from RoadMaster and Blue Ox, such as the RoadMaster StowMaster # RM-501, are designed to mate directly to base plates from the same manufacturer. Base plates usually mount to the vehicle frame. There are adapters available to use a tow bar from one company with base plates from another, but this arrangement costs more and increases the complexity and the amount of play in the set-up. Also, not every possible parts combination is covered by the available adapters. Jeep Wranglers...
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  • Recommended Weight Distribution System for 1999 Ford Super Duty with Lift and 10,000lbs Camper
  • I can help you get set up with all the right equipment for towing a travel trailer with your 1999 Ford Super Duty. A weight distribution system is recommended if the gross vehicle weight (GVW) of the trailer is more than 50 percent of the GVW of your vehicle. A weight distribution system will distribute some of the tongue weight to the front axle of the tow vehicle. This will help with sag and allow your setup to brake and handle better. When picking out a weight distribution you want...
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  • Trailer Tire and Dual Wheel Recommendation for 10K Dexter Axle
  • The trailer tire and wheel combo to fit your 10K Dexter axle would be the Taskmaster Provider ST235/85R16 Trailer Tire with 16" Silver Dual Wheel, # TTWA16RG477. This wheel can be used as either the inner or outer wheel of a dual-wheel setup.
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  • Replacement Hub and Drum Recommendation for Dexter 8-247
  • I figured out what you have. The Dexter hub you have is actually an 8-247 hub like the part # 8-247-50UC3-EZ which would be the correct hub drum, but if you wanted just a hub you would want the part # AKIHUB-545-35-G-EZ-K
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  • Parts Needed to Replace Leaf Springs, Shackles and Hangers on a Tandem Axle Trailer with 3 Inch Axle
  • The # SP-218275 springs are not designed for use with a 3 inch Dexter axle. A 3 inch axle is rated for at least 6,000 pounds so you would need to go with the # SP-198275, 6-Leaf Double-Eye Spring. The # SP-198275 spring has a 24-7/8 inch length and will have the same axle spacing, 34 inches, as the # SP-218275 spring that you referred to. You should check your current axle spacing or wheel and tire size to be sure the 34 inch spacing will provide clearance to mount the tires on your...
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  • LED Trailer Light Recommendation for 1999 Ranger Trail Trailer
  • Previous customers of ours that have had a Ranger Trail trailer like your 1999 model had Wesbar wraparound taillights on them. The LED version of this light would be the part # 271594 for the right hand side and part # 271595 for the left hand side. I wasn't able to find any decent pictures of the clearance lights on your trailer online, but I attached a link to a page that has all of the LED clearance lights we offer for you to check out.
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  • Hitch Extender Recommendation for a Ford Super Duty Hauling a Camper and Flat Towing a Honda CR-V
  • The closest hitch extension that we carry for your setup is the Titan Hitch Extender, # RP45018, that you referenced. This hitch extension was designed to work with 2-1/2 inch x 2-1/2 inch trailer hitch receivers only and reduces down to a 2 inch receiver for your Blue Ox tow bar. You will want to measure the height and width of your trailer hitch receiver opening to ensure that you can use this extension with your hitch. When using this hitch to flat tow your Honda CR-V, you will want...
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  • Superchips Flashpaq F5 Horsepower And Torque Gains Per Program Setting
  • For your 1999 Ford F-350 with 7.3 liter with your Superchip Flashpaq F5, # SU1845, I reached out to my contact at Superchips to get the ratings. He said there are 4 programs, two performance, one economy, and one towing. He said with the top performance the power gains are up to 111.5 horsepower and up to 205 foot lbs of torque. In the second performance, the gains are about 80 hp and 180 ft/lbs of torque. In the economy mode it is about 40 hp and 100 ft/lbs of torque. With the towing...
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  • What is a Deep Drop Bumper? How Do I Know If I Have One?
  • A deep drop bumper is also known as a cowboy bumper. It is taller than a regular bumper, and would use a receiver that is lower than what would be used on the same vehicle that was equipped with a standard bumper. If you click on the provided link, you can see our Bumper FAQ article that will explain it in full. If your 1999 Ford F series has the cowboy bumper, the # C15316 would work great for you. If you have the standard bumper, # C14355 would be a better choice. This hitch will...
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  • Setting Tekonsha P3 Brake Controller to Electric Over Hydraulic Mode
  • To work with your electric over hydraulic actuator, you would set your Tekonsha P3 to electric over hydraulic mode, by pressing the menu/options button. Then, on the SETUP screen, scroll down to brake type and press OK when Hydraulic is highlighted. It will then ask you to confirm. At this point, in the lower left hand of the display, there should be an H, for Hydraulic. This procedure is outlined on page 4 of the installation instructions, which I have linked for you in case you do...
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  • Transmission Cooler Recommendation for a 1999 Ford F-250 Super Duty with 7.3 Liter Powerstroke
  • You can certainly use the Derale 24 Inch Frame Rail Fluid Cooler, # D13225, for your 1999 Ford F-250. You would also need Derale Radiator Adapter Fittings, # D13025, for the 7.3 liter Powerstroke. Any transmission cooler will could essentially be considered a remote mount application. I have included a link to the coolers recommended for your truck and engine. I have also included a link to our transmission cooler FAQ article and a video showing a typical installation. For your truck...
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  • ER Error Code on a Draw-Tite Activator II Brake Controller, 1999 Ford F-250/F-350 Super Duty
  • According to the installation instructions linked below, an Er code on the Draw-Tite Activator II, 5500, indicates the trailer brakes are not functioning when using the brake pedal or manual override. This could mean that the brake controller is not receiving any power. Use a circuit tester like the Quickee # 3808 and probe the blue wire on the back of the brake controller. Step on the brakes. If there is no signal, try the manual override. If there is still no signal on the blue wire...
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  • 7-way and Brake Controller Recommendation for a 1999 Ford F150 Styleside with 4-Way
  • The two parts you referenced, the # 118242 and the # C55242 are both just two different manufacturers takes on basically the same product. Either would work just as well as the other for you. The only difference is the brand. For a brake controller the most popular option we carry is the P2 Brake Controller part # 90885 because of how easy it is to setup and how well it works. All you would need to install it would be the part # 3035-P. This will plug into the controller and then...
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  • Commander Brake Controllers Green light is On Without Trailer Connected
  • It sounds to me as if you have a short on your brake feed to the trailer connector. Check the blue wire going to the trailer connector at the back of the vehicle to see if it is shorted. The easiest way to be sure the wire is not shorted is to cut the blue brake feed wire about 4 to 6 inches behind the controller. If the light on the controller goes off the blue wire is shorted somewhere and will need to be fixed or replaced. If the green light stays on, when the blue wire is cut, then...
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  • Trailer Left Side Running Lights Not Working All Other Lights Work
  • On many trailers the running light wires are jumped from one side to the other on the trailer. This is because there is a single running light wire only ran on one side. A wire would have to be spliced in on the one side, ran to the other side of the trailer, and connected to the running lights. If using a junction box, the one running light wire from the trailer connector can go to a single terminal and from there you can run separate wires for the running lights on each side of the...
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  • Is the Titan Disc Brake Kit # T4843400 Good For a Salt Water Boat Trailer
  • In the Titan disc brake kit, # T4843400, the hubs and calipers are silver cad plated, the actuator is zinc-coated, and the lines are all steel. This is not an ideal set up for a salt water application. The best option would be to go with stainless steel parts. You could start with Kodiak disc brakes, # K2R35S. For 2 axles you would need 2 sets. They fit 14 inch and larger wheels and will fit a hub with a 5 on 4-1/2 bolt pattern. The rotors are the over the hub style. The actuator...
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  • Replacement Tail Light For Model 421r Sealed Bulbs
  • For your model 421r light, we have the Optronics Sealed 6-1/2" Oval Trailer Stop, Turn and Tail Light, 3-Function # ST70RB. This light requires the 3-Wire Pigtail for Optronics Trailer Lights - 3-Prong PL-3 Plug - 10" Lead # A45PB. If you want the LED option it is the Trailer Tail Light - Stop, Tail, Turn - LED - Waterproof - 10 Diodes - Red Lens # STL72RB and this light uses that same 3-wire pigtail.
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  • Tandem Axle Trailer Suspension Hanger Kit To Provide More Axle Clearance
  • It sounds as if your trailer suspension was built with the common Tandem-Axle Trailer Hanger Kit, # APT3, and that the springs and attachment hardware are wearing out enough that with the weight you are carrying there is no longer enough room for the suspension to work without contacting the trailer frame. I would recommend stepping up to the Heavy Duty Tandem-Axle Trailer Hanger Kit, # APT3HD, or the Tandem-Axle Trailer Hanger Kit, # AP233-H248. The # APT3HD kit comes with 2-1/2...
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  • Parts Needed to Flat Tow a 1999 Ford F-350 with a 2005 Ford F-350
  • We have two base plate kits that will fit your 1999 Ford F-350, the Roadmaster MX Base Plate Kit, # 482-1, and the Blue Ox Base Plate Kit, # BX2163. I would go with the Roadmaster kit because it uses removable arms for a less noticeable appearance when you are not towing. Keep in mind, the Roadmaster kit will only fit your truck if you have the front tie down loops. If you do not have the front tie down loops, then you will want to go with the Blue Ox kit. If you go with the Roadmaster...
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