Best automotive alternator resistors according to redditors

We found 16 Reddit comments discussing the best automotive alternator resistors. We ranked the 4 resulting products by number of redditors who mentioned them. Here are the top 20.

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Top Reddit comments about Automotive Replacement Alternator Resistors:

u/phiednate · 3 pointsr/volt

Not quite. They are called switvhback. It's a bulb with about 10 leds on it, half amber half white. When driving normal they glow white but when you the turn signal they flash amber. This is what I picked up: JDM ASTAR Extremely Bright 3030 Chipsets White/Yellow 7441 7443 7444 Switchback LED Bulbs with Projector For Turn Signal Lights(Brightest Switchback bulb on the market) https://www.amazon.com/dp/B017C6B5JO/ref=cm_sw_r_cp_apa_NW3qybA353513

You also need to pick up some resisters since they don't pull enough power and the car will make them hyperflash as if a bulb is out. I have some of these: 4Pcs Aaron 50W 6ohm Load Resistors - Fix LED Bulb Fast Hyper Flash Turn Signal Blink Error Code https://www.amazon.com/dp/B00L4V9ECY/ref=cm_sw_r_cp_apa_HY3qybDEKE0XE

u/Fuclyr_Nizzan · 3 pointsr/cars

You need load resistors when replacing halogen bulbs with LEDs

X-post this to r/mechanicadvice

u/chuckufarlie · 3 pointsr/DRZ400

Same... I ended up dropping my bike in the garage breaking a signal, and the taillight was already cracked so I went with a DRC Edge light... looks much better, easy enough to install.

http://www.twistedthrottle.ca/drc-edge-tail-light-with-aluminum-tail-light-holder-for-suzuki-drz400s-00-14-drz400sm-05-14

That didn't include blinkers... but they are only another $20 or $30... i had to add resistors for the blinkers though otherwise they flashed too fast... I got the resistors off amazon, I think. https://www.amazon.ca/AMAZENAR-Resistor-Running-Blinker-Cancellor/dp/B015JHP5QC/ref=sr_1_3?ie=UTF8&qid=1492819468&sr=8-3&keywords=led+resistor

Sorry about all of the Canadian pricing... I'm in Canada so those are the links I know.

u/tobyarch · 2 pointsr/Hyundai

Headlights (you only need one pair. the cutoff is outstanding)

Map lights, license plate lights, running tail lights, and side marker lights

Reverse lights

Front turn signals (accessible from under the vehicle - pin remover and 10mm socket needed)

Rear turn signals (requires tail light disassembly)

Turn signal resistors (required to prevent hyperflashing; soldering is recommended)

Brake lights (requires tail light disassembly)

Daytime-running lights (pliers needed)

Trunk light and dome light

u/MindlessAdeptness · 2 pointsr/motorcycle

https://www.amazon.com/4Pcs-Aaron-6ohm-Load-Resistors/dp/B00L4V9ECY/ref=sr_1_4?crid=2CRPCGSQG5P1V&keywords=led+turn+signal+resistor&qid=1570538089&sprefix=led+turn+signa%2Caps%2C159&sr=8-4. You may need to read up on what ohm rating you want but this should be similar to what you need. Also, don't worry too much about the heat warnings they have all over the page, if its just for a quick signal it wont get too hot but just be aware

u/jtwyrrpirate · 2 pointsr/ElCamino

You'll need to add some resistors to the blinker wiring, or possibly switch to a no-load flasher. Basically, the factory flasher won't work because the LEDs don't provide enough resistance for it to function. You can get resistors at brick-and-mortar auto parts stores or online retailers. Here's an example on Amazon.

Or, if you don't want to mess with the wiring you can switch back to incandescents and the blinkers will probably start working again (unless something else is wrong!)

Also, take this as an opportunity to clean your ground connections with a wire brush. There should be 1 in the back (under the bed near the bumper), and 2 up front (1 near each headlight).

u/J0hnnykarate · 1 pointr/Bobbers

Be careful doing that, mine came with warnings saying to not mount it near anything but metal. I bought these but removed them after I tested to verify that they fixed the light blink, which they did.. but that copper piece was burning hot to the touch. I can only foresee that catching fire one day so I opted out of keeping it

u/mywifemadethisforme · 1 pointr/camaro

I'd be pretty pissed about that. But yeah without load resistors, if the new lights are LEDs then you will still have the same issue. You'll need something like this to prevent it.

4Pcs Aaron 50W 6ohm Load Resistors - Fix LED Bulb Fast Hyper Flash Turn Signal Blink Error Code https://www.amazon.com/dp/B00L4V9ECY/ref=cm_sw_r_cp_api_V7UXAbB9DVN53

It's pretty straightforward to install, just Google it or message me if you need help with them. I'd recommend mounting them on metal where they won't come into contact with plastic though as they may heat up.

u/mrse0515 · 1 pointr/MechanicAdvice

Had to dig them out of my order history... here you go! (-:

Headlights-got a set for MIL's 2010 Forster and FIL's 2006 Forester... https://www.amazon.com/dp/B07FXP4KRS/ref=cm_sw_r_cp_apa_i_CAlzDbM6HHTV4

Turn signals for the front...(Aurora) https://www.amazon.com/dp/B07PY4VDD4/ref=cm_sw_r_cp_apa_i_sBlzDbFYTEF0R

These are the resisters for the turn signals so they don't blink fast...(both cars)... https://www.amazon.com/dp/B00UNG3EXQ/ref=cm_sw_r_cp_apa_i_BClzDbADZV5S6

License plate lights and marker lights (I think he used these for both)... https://www.amazon.com/dp/B0186P1MUW/ref=cm_sw_r_cp_apa_i_9BlzDb01J1YPN

Fog lights for the Aurora, they can be yellow or blue, just have to turn the switch off and back on... https://www.amazon.com/dp/B07DGY4LQK/ref=cm_sw_r_cp_apa_i_UIlzDbSPTJ0EF

Headlights in the Aurora, can be a white/blue or yellow, switch off and on... https://www.amazon.com/dp/B07MF1RY6V/ref=cm_sw_r_cp_apa_i_ZJlzDbQFKK85N

Tail lights/brake lights for the Aurora... https://www.amazon.com/dp/B00NPIUFMM/ref=cm_sw_r_cp_apa_i_JLlzDbYRDS6B4

Sorry all the links are Amazon, hubby works there, so he gets a discount...the rear fog light bulbs must have come from somewhere else though, that's the only thing I can't find in our order history... unless it's the same bulbs as the brakes, there are two on that order...

u/mrE0515 · 1 pointr/MechanicAdvice


The resistor goes between the positive wire for the turn signal / brake light and the ground wire.

Here's a picture for reference.

https://www.amazon.com/gp/aw/d/B00UNG3EXQ?psc=1&ref=ppx_pop_mob_b_asin_image

u/mentaldemise · 1 pointr/motorcycles

To second this, you'll need something like this: https://www.amazon.com/Zento-Deals-Pieces-Load-Resistors/dp/B01N0ZKV1R/ Not saying that's the correct one, but that's the idea.

u/SilentAcoustics · 0 pointsr/fordranger

They're alright. If you can afford to retrofit, I recommend doing that. Avoid any of the aftermarket lights that have projector lenses. They're all garbage from everything I have heard. The ones I got are nice because they fit the stock light (9007) and fit my pre-existing HID kit. I'm running 5000K Kensun HID's for my fog lights and my headlights (headlights are lo/hi). They're bright as hell but in Texas, it is illegal to run HID's without projector lenses and for good reason. (they spread across the road and are not controlled)


These are the headlights. They feel strong and solid but I had to return two passenger sides before I got one that worked properly. (the halo rings were not acting right).

The wiring was pretty straight forward. I wired my halo rings into the fog light's relay so they kick on with the driving lights.

Another neat little thing to get to complete the badass look are some switch back LED turn signals. I got these.

If you decide to get the switchbacks, don't forget to get the load resisters. Otherwise your turn signals will blink too fast.

Also, it doesn't look like a 98 because I have installed the 03 edge front-end and hood.

I will upload some night photos tonight. its hard to get the lighting right on my camera at night to where you can actually tell how they look. I'll do my best.