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Putco LED Light Bulb Load-Resistor Kit - Aluminum

Item # P230004A

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putco accessories and parts  led light bulb load-resistor kit - aluminum
putco accessories and parts lights led light bulb load-resistor kit - aluminum

  • Lights
  • Load-Resistor Kit
  • Putco
  • Aluminum
Guard against LED-related turn signal problems with this load-resistor kit. Simple, effective system builds resistance that corrects flash timing, thereby preventing the "hyperflash" phenomenon that occurs with LED indicators. Call 800-298-8924 to order Putco accessories and parts part number P230004A or order online at Free expert support on all Putco products. Guaranteed Lowest Price and Fastest Shipping for Putco LED Light Bulb Load-Resistor Kit - Aluminum. Accessories and Parts reviews from real customers.

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Putco Accessories and Parts - P230004A

Guard against LED-related turn signal problems with this load-resistor kit. Simple, effective system builds resistance that corrects flash timing, thereby preventing the "hyperflash" phenomenon that occurs with LED indicators.


  • Fixes hyperflashing or burned-out bulb indicators on turn signals with LED lights
  • Has compact design for tight applications
  • Installs quickly and easily
  • Works with most import and domestic vehicles
  • Constructed of aluminum


  • 6 Ohms
  • 50 Watts
  • 1-Year warranty

Please Note: One kit is required for each LED bulb used in turn signal applications.

Because LED bulbs have little resistance on their own, they create a "hyperflash" situation when used in turn signals. This fast flashing is similar to what your factory signal light does when the bulb is about to burn out. To prevent this phenomenon, install a load-resistor kit along with your new LEDs. This kit will build additional resistance in the line to correct the flash timing, resulting in a properly functioning indicator.

230004A Putco LED Light Bulb Load Resistor Kit - Aluminum

P230004A Installation InstructionsInstallation Details P230004A Installation instructions

Customer Reviews

Putco LED Light Bulb Load-Resistor Kit - Aluminum - P230004A

Average Customer Rating:  5.0 out of 5 stars   (2 Customer Reviews)

Guard against LED-related turn signal problems with this load-resistor kit. Simple, effective system builds resistance that corrects flash timing, thereby preventing the "hyperflash" phenomenon that occurs with LED indicators.

- P230004A


This product made its way to South Africa were I installed it on a boat trailer with led rear lights with excellent results, no more pulsing of the led's This is a great inexpensive way to solve any pulsing of LED's on trailers 55787

- P230004A


Quick and easy install. 213842


Ask the Experts about this Putco Accessories and Parts
Do you have a question about this Accessories and Part?

  • Using an Adapter to Tow a Trailer with LED Lights with a 2012 Mercedes GL450
  • Yes. If your trailer with LED lights has a 5-Way or 4-Way flat connector then you would use adapter # TR20141. If the trailer has a 7-Way connector you would need # C57003. These adapters have load resistors in them that provide additional power draw so the vehicle thinks there are incandescent lights on the trailer. The other option is to install load resistors, # P230004A, in line on each circuit on the trailer wiring behind its connector. You can also use this method if the resistors...
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  • Are Load Resistors Required when Adding LED Lights to a Trailer
  • You may not even need load resistors to switch to LED lights. The best thing to do is to try the lights without load resistors first. No need to purchase something you may not need until you know need it. Load resistors such as aluminum # P230004A and ceramic # P230004C dissipate heat through the body of the resistor. Wrapping them with insulation would prevent them from dissipating heat properly. You could put them in a battery or junction box though. Load resistors increase the...
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  • How to Install LED Light Bulb Load Resistor for Use with Trailer with LED Lighting
  • The Putco LED Light Bulb Aluminum Load-Resistor Kit # P230004A wires in parallel with each trailer lighting circuit. For a trailer with LED lighting (that does not present the same electrical load as an incandescent type bulb) you will wire one resistor inline with each circuit, so for a typical 4-pole installation you'll need three, for left turn/stop, right turn/stop and running light circuits. The kit includes quick-splice connectors.
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  • Troubleshooting LED Trailer Lights that Flicker When Vehicle is Off
  • What you are experiencing is due to the fact that LED taillights only require a very small amount of amperage to illuminate. A tiny amount can cause them to illuminate. Trailer wring for the most part goes totally dead when the vehicle is off. But there can be small amounts of voltage that would normally not get noticed if the trailer had incandescent bulbs. It really isn't a problem unless it bothers you. The flickering wouldn't be enough to drain your battery. But if you want it to...
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  • Turn Signals Hyperflashing on a 2011 GMC Sierra Denali 3500HD
  • As you probably know, adding LED lights can cause a hyperflash problem with turn signals. You would need to add a load resistor like # P230004A to every light that was changed to LED. You have to make sure that the load resistors are installed correctly. One wire will connect to the power wire going to the bulb. The other wire you will ground to the truck frame or grounding point. I have included a picture that shows how it should install.
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  • Trailer Lights Not Working Using 4- to 7-Way Adapter on a 2012 Mercedes GL450
  • If the trailer has LED lights then the issue isn't the adapter or the trailer. It is the vehicle. The 2012 Mercedes GL450 and other German vehicles do not work well with trailers that have LED lights. This is because LED lights do not draw enough power for the tow package on the vehicle to recognize them. Usually this is accompanied by a bulb out sensor light in the vehicle. The fix is to use a special adapter such as # TR20141. Or, if this is the adapter you are using then adding load...
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  • Installing LED Front Turn Signal and Running Lights and Resistors on a 2007 Nissan Frontier
  • It sounds as if you have a wiring issue. When installing the Putco 3157 LED Bulbs, # P233157A360, on your Frontier, you will need to keep in mind that this bulb is a two filament bulb and has two circuits going into the bulb. The 3 wires you are seeing should be two 12 volt wires and one ground wire. Use a circuit tester, item # 3808 if needed, and determine which wires are which. You should get one wire with turn signal and one wire with the tail light signal, the third wire being ground. Once...
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  • Troubleshooting LED Trailer Taillights that Stay Dimly Lit
  • Since it only takes a tiny amount of voltage to illuminate an LED what you are seeing is normal. The tiny bit of voltage present on your trailer wiring harness is illuminating your LEDs slightly. What you can do is install load resistors on the circuits of your trailer that are dimly lit and the problem will go away. For that you would want the part # P230004A. My contact at Curt stated that the small amount of power will not drain the vehicle battery since it is much a minute amount...
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  • Load Resistors for LED-Light Trailer Towed by 2017 Audi Q7 with Factory 7-Way
  • I cannot speak for Audi in terms of any progress they've made with the compatibility of their OEM wiring with LED-equipped trailers, but we do offer the Tow Ready adapter # TR20141 you referenced. This will carry your lighting and reverse lockout signals in the 5-pole format. If this does not work for you the other option is to wire in load resistors in front of each LED light on the trailer. Load resistors like ceramic # P230004C or aluminum # P230004A can mimic the electrical characteristics...
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  • Left Blinker Flashes Fast After Installing Trailer Wiring Harness on a 2014 Chevy Camaro
  • In order to determine the functions of the wires on your 2014 Chevy Camaro you will need to use the included circuit tester that came with # 119147KIT. What you are describing sounds like hyperflashing which can happen when using LED lights but usually not stock LED lights on a vehicle. If the issue is happening on a trailer then the hyperflashing is a result of not enough load on the system. Installing a load resistor such as # P230004A in line of the affected circuit would cause more...
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  • Why does the # P230004A Load Resistor to Prevent Hyper Flash Turn Signal Get So Hot
  • The Putco LED Light Bulb Load-Resistor Kit - Aluminum, item # P230004A, is designed to get hot. It can be explained like a dam. The result of a dam holding back water is pressure, so the dam has to be built to withstand that pressure. The load resistor is holding back power and the result of holding that power back so it does not get to the LED lights is heat. The load resistor is built to dissipate the heat caused by holding back the power and aluminum transfers heat to the air around...
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  • Should Load Resistors be Grounded to the Vehicle Frame or an Existing Ground Wire
  • The ideal location to ground anything would be to the metal frame of the vehicle in the nearest corrosion free bare metal surface. However, if there is a ground wire near by you could try it out and see if it offers a sufficient ground. If you still get hyper flashing then a better ground location could be needed. I have included a link to the installation details for the load resistor # P230004A for you. These resistors are also available in a pair, # P230004A-2.
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  • Lamp Out Warning Light Comes on with Headlights on and Left Turn Signal Engaged
  • Is this only happening when towing a trailer? If so it could be a few different things. First, if the trailer has LED lights the low power draw of the LED lights could confuse the vehicle computer. To simulate more load you would add a load resistor, # P230004A, to any affected circuit. It could also be a poor connection caused by dirty or corroded trailer connectors. Make sure that the vehicle and trailer side connectors are clean and free of corrosion inside and out. Also make...
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  • Why Do LED Taillights on Vehicle Cause "Bulb Burned Out" Message on Dash
  • When you replace incandescent bulbs on a vehicle's turn signal circuit with LEDs the blinker circuit doesn't want to work right. This is due to the amperage rating being too low on the LEDs and thermal flasher units needing to see a specific amperage rating to work right. Now with some vehicles if the circuit doesn't see a specific amperage load on the circuit it thinks the bulb has burned out. The LEDs will cause this. A load resistor puts that same amperage back on the circuit so that...
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  • Aluminum Versus Ceramic Load Resistors for Replacing Incandescent Lights for LED Lights on RV
  • Load resistors such as aluminum # P230004A and ceramic # P230004C, will get hot as they do their job of absorbing power (providing resistance). Both will work fine for helping a wiring harness work well with low-power-demand LED type trailer lighting. The difference between them is that the aluminum resistors will be able to more quickly dissipate that heat to the surrounding air. The aluminum housing will release it's heat better since the material itself is more conductive of heat...
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  • Troubleshooting Trailer LED Lights Not Working When Hooked Up to a 2012 Mercedes-Benz GL450
  • The LED bulbs on your trailer draw very little power and the Lamp-Out sensor in your 2012 Mercedes-Benz GL450 sees this as a bulb that is about to go out. To solve this problem the # TR20141 adapter has resistors to simulate more power draw which usually works. The other solution is to install load resistors like # P230004A on the lighting circuits. Since the adpater didn't solve your problem you'll need to install the resistors.
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  • Wiring Optronics Oval LED Trailer Turn Signal and Parking Light as a Vehicle Front End Replacement
  • When wiring the Optronics Oval LED Turn Signal and Parking Light, part # STL78AB, you will want to connect the red wire from the light to the turn signal wire from the vehicle and the black wire from the light to the parking light wire from the vehicle. Then you should ground the white wire from the light to the frame of the vehicle or another good ground source. This may not be an issue on the front end of your vehicle, but you may want to test the circuit you are attaching the red...
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  • Lamp Out Fault and Hyper Flash Problem With a Firestrip LED Light Installed on a 2002 Dodge Ram
  • Since the Universal LED Tailgate Fire Strip, # 360439, uses LED lights, you may be experiencing a hyper flash scenario that can be solved by using a load resistor such as # P230004A. But before that, check all of the bulbs on the truck to determine if there is a bulb that needs to be replaced because that can also cause the problem. If you examine all of the bulbs on the truck and nothing is out or you have replaced any that were out and you are still having the problem, a load resistor...
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  • Are Load Resistors Needed for an LED Light Kit on an RV
  • If you experience hyper flashing when using a turn signal then you would need to use a load resistor on the turn signal circuit. You would just need one per affected circuit. the brake lights, running lights, and backup lights do not need load resistors the vast majority of the time. Just the turn signals. The difference between the ceramic ones such as # P230004C and the aluminum one # P230004A is how well they dissipate heat. Aluminum dissipates heat better.
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  • Replacement LED Tail Lights on a 2007 Dodge 3500 Trips Bad Bulb Notification
  • It is possible that the resistors you are using are not the exact right type for this application. We do have resistor-kits for this exact purpose. They are Putco Resistor Kits part # P230004C for a ceramic housed resistor or part # P230004A that uses an aluminum heat sink. These resistors should solve your problems.
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  • LED Fire Strip Does Not Function with Running Lights or Turn Signals on a 1997 Chevy K1500
  • There could be a few issues that are causing the Universal LED Tailgate Fire Strip, # 360439, not to light up properly. First, you could be experiencing a hyperflash sort of issue that does not allow the unit to light up properly because there is not enough load on the system. You may have to install a load resistor, # P230004A, on the truck, to simulate more load. Another possible problem is the converter you are using is not pinned out the same as the Fire Strip requires. If you...
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  • Need to Separate My Turn Signals and Brake Signal on a 2008 Dodge Ram 2500.
  • Although typically used to convert a system from a tow vehicle to a towed vehicle, the use of the Vehicle to Vehicle Taillight Converter, # 118158, would work for you. When a vehicle has a combined system, both the left and right turn signal wires also carry the brake signal. With a separate system, the brake light signal is broken out onto it's own circuit. This converter will allow you to convert your combined taillight system to a separate taillight system on your 2008 Dodge Ram. The...
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  • Should Load Resistors Prevent Hyperflashing
  • LED lamps draw only a fraction of the power that an incandescent lamp would. If the vehicle has a bulb-out sensor, the turn signals will blink rapidly, or hyperflash because the vehicle thinks you have a burned out bulb. Using a properly installed load resistor will eliminate this problem. If the resistor is incorrectly installed, the lamp will still hyperflash. I've provided you an install diagram showing the proper installation of the load resistor. Review your installation to make...
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  • Load Resistor Recommendation to Install Bargman 47-84-009 on a Motorhome
  • What you would need to do to be able to install LED taillights on your motorhome that originally had incandescents would be either to install a different flasher unit like you mentioned or to install load resistors on all of the circuits that flash intermittently (blinkers/flashers). We don't carry the flasher units so the best solution I can give you would be load resistors. For that you would want the # P230004A. You would have no issue towing a trailer with incandescent bulbs with...
    view full answer...

  • Trailer Wiring Harness Not Working On a 2013 Volkswagen Tiguan
  • There is actually a plug-in style wiring harness available for your 2013 Volkswagen Tiguan, # 118675. Using this harness will prevent you from having to cut and splice wires. It is possible that you will need to follow a different installation method for the 119190 harness but if you still have problems you can troubleshoot the harness. To troubleshoot your 119190 harness, if there is power at the 4-Way and all the signals are correct AND the trailer has LED lights then you will need...
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  • Dim Taillights On Vehicle Troubleshooting After LED Conversion
  • Did you install load resistors on the circuits like the part # P230004A for each of the circuits that have a blinker on them? What you described sounds like bad grounds or bad wiring. A very dim LED typically means it is picking up a very tiny amount of voltage on the circuit. Typically you wouldn't see this illumination with an incandescent but since LEDs can light up with the smallest amount of voltage the problem usually appears with an LED conversion. Your best option is going...
    view full answer...

  • Troubleshooting Brake Lamp Failure Light On 2016 Ford Escape With Trailer Connected
  • There can be a couple of reasons you are getting a brake lamp failure on your 2016 Escape. Either a brake light is really out on the trailer or you can have a ground issue which can cause all sorts of issues. I recommend using a circuit tester like part # 3808 to test the pins on the trailer connector on the Escape. If that checks out, you can use a 12V battery and test the trailer connector. If everything checks out another possibility is that the trailer has LED lights. LEDs...
    view full answer...

  • Getting Error Codes On 2016 Ford F-250 When Installing LED Trailer Lights
  • since 2015, Ford has changed their wiring in their trucks and it has been causing several different issues including the problem you are having with installing the LED lights. Resistors like the Putco LED Kit, part # P230004A are not always needed and it is recommended to install the lights like part # 47-84-610 first to see if any hyperflashing occurs. On the Ford trucks error codes may pop up as well and the resistors may work to resolve the issue. You would need a resistor for the...
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  • Recommended Converter for Separated Trailer 3rd Brake Lights
  • Your plan to use the converter will work if you use the Curt Vehicle to Vehicle Tail Light Converter # C56196. You will not need to use diodes, but you may need to use the Putco LED Light Bulb Load-Resistor # P230004A to keep the LED light from hyperflashing.
    view full answer...

  • Reverse Electric Lockout Not Working on Trailer and 2010 BMW X5 with OEM Wiring Harness
  • You are correct about the bulb out sensor and the adapter # TR20141. There are load resistors built into the adapter to provide more load so that you do not get that sensor. The solenoid should have enough draw without it but it might help. Since it works as it should when connecting the trailer to another vehicle that does sound like and issue on the vehicle side or with the adpater. Be sure to check that the output pin on the adpater matches the one on the trailer that leads to the...
    view full answer...

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