Installing Trailer Wiring on a 24V System of a Military Hummer --1987 M998 hmmwv
Question:
I have a military hummer which I am attaching a trailer to. It is a 24v. I am wondering what/how to connect wiring.
asked by: Frank
Expert Reply:
I've attached an article as well as a photo to assist, but you will need to add a step down converter between your light functions, and add a 24V relay between the cold side of your brake light switch for your brake controller if you will be using electric brakes on the trailer.
There isn't an easy wiring harness with this converter already installed, so I recommend you use the Curt Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 60" Wire Lead # C58044 (you will need to get the step down converter and install in line) to give you a 4-way connection. Then you can use the # ETBC7 to give you the wiring for a 7-way and brake controller. I've attached the article to assist in how you connect this differently based on your 24V system so your controller receives the proper power, the stop light signal is delivered properly to the controller, and then the output will be the correct voltage because you took care of that on the front end of the controller. For a brake controller, I recommend the Tekonsha Prodigy P3 # 90195.
Only if you are using a 4-way trailer running at 24V (which cannot have trailer brakes) will you have the ability to just splice in and then use lights like the Miro-Flex LED Trailer Stop/Turn/Tail Light - 12 Diode, 24 Volts - 4" Round - Red # STL23R24B.
Let me know if you have further questions.
Products Referenced in This Question
Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Automatic Leveling
- Under-Dash Box
- Dash Mount
- Up to 4 Axles
- LCD Display
- Up to 360 Degrees
- Tekonsha
more information >
Curt 4-Way Flat Trailer Connector w/ 60" Harness and Wire Taps
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- No Converter
- 5 Feet Long
- Universal Fit
- 4 Flat
- CURT
more information >
Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Accessories and Parts
- Trailer Brake Controller
- Installation Kits
- etrailer
more information >
Product Page this Question was Asked From
Miro-Flex LED Trailer Light w/ Reflector - Brake, Turn, Tail - Submersible - Round - Red - 24V
- Trailer Lights
- Tail Lights
- Stop/Turn/Tail
- Round
- Recessed Mount
- Submersible Lights
- LED Light
- 4-5/16 Inch Diameter
- Red
- Optronics
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Brake Controller
- Shop: Viair Portable RV Air Compressor Kit for 5th Wheels and Travel Trailers - 150 psi - 2.30 CFM
- Shop: Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers - Ford, Lincoln, Mercury
- Shop: Curt TriFlex NEXT Trailer Brake Controller w/ Custom Harness - 1 to 4 Axles - Proportional
- Shop: Tekonsha Prodigy P3 Trailer Brake Controller w/ Custom Harness - Up to 4 Axles - Proportional
- Search Results: tekonsha 90195
- Search Results: 2 inch boat winch strap
- Shop: Hand Winch Strap with Safety Hook, 2" Wide x 20' Long - Extra Heavy Duty - 4,800 lbs.
- Shop: BoatBuckle Boat Winch Strap with Latch-Lok Hook - Loop End - 2" x 20' - 4,000 lbs
- Shop: Thinline LED Clearance and Side Marker Light - Submersible - 3 Diodes - Rectangle - Red
- Search Results: padlock
- Search Results: coupler pin
- Search Results: bulldog hitch
- Search Results: 8 lug
- Search Results: boat trailer brake kit
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Video: How to Choose a Trailer Brake Controller
- Shop: Trailer Hitch
- Article: Brake Controller Installation: Starting from Scratch
- Shop: Trailer Wiring
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Shop: Suspension Enhancement
- Article: Trailer Wiring Diagrams
- Video: Finding the Right Trailer Wiring Harness
- Q&A: Should I Get a Proportional or Time-Delayed Brake Controller
- Video: What to Know About the Tekonsha Prodigy P3 Trailer Brake Controller
- Article: How to Measure for Trailer Hitch Drop
- Q&A: Brake Controller Recommendation for a Truck with Air Brakes and a Trailer with Electric Brakes
- Video: Redarc Tow-Pro Liberty Brake Controller Review RED24FR
on Trailer Lights
