4 Way flat trailer connector cover for the vehicle protects the trailer connector from the elements and also tests the vehicle's brake, running and turn signals.
Tow Ready # 118147
Customers compare 30512 to these similar products
Customers Who Purchased This Accessories and Parts Also Bought...
Average Customer Rating: 
4.8 out of 5 stars (41 Customer Reviews)
by: Nick F03/21/2011
Is this review helpful?
Great little tester 9995
by: Doug C.07/08/2011
Is this review helpful?
This eliminates yelling "Hey, is it working?" at another person. It allows you to troubleshoot without help (Is it the trailer's lights that are bad? Is it the car's wires, etc...). Just snake the wire so you can see it through one of the driver side mirrors. 18936
by: Mark P.06/05/2011
Is this review helpful?
Was able to verify, by myself, that wiring was correct and operational. Only bought it for testing, probably won't use it as a cover.16144
by: Scott G06/01/2011
Is this review helpful?
Works nicely. Simple instruction would be nice addition15895
by: David K.05/24/2011
Is this review helpful?
Simple but useful. Makes it easy for one person to test a harness. Reduces the guesswork when tracing trailer harness electrical problems.15316
by: David G05/24/2011
Is this review helpful?
This little gadget is worth more than the few dollars they are charging. Suspected my old harness wasn't working properly and this proved the theory. Am keeping for future usage. Def recommend this product for anybody with a 4-flat wiring harness. May not need it today but use it once and it pays for itself.15311
by: William Thomas05/23/2011
Is this review helpful?
everything looks good... 15139
by: Charles T.03/26/2011
Is this review helpful?
Cool 10431
by: Orval03/21/2011
Is this review helpful?
Works like it should 9946
by: Jeff M03/07/2011
Is this review helpful?
Simple and easy tool to verify harness is wired properly and that signal and brake lights work. Works great.8655
by: John S.01/26/2011
Is this review helpful?
Good product 6142
by: Gary P01/20/2011
Is this review helpful?
Just what I needed Living and having a hitch that is in and out of salt water you need this. Although I have not installed the products that I ordered they are upon inspection out of the box of high quality. I would like to say that this etrailor.com web site and their delivery process is phenomenal. It was delivered promptly and I was kept informed of the order and where it was in the process. Keep up the great job and I will return when looking for item you carry. Thank you.5743
by: Ernie S.01/01/2011
Is this review helpful?
On time as ordered I haven't used these yet but I know they will do what I want. E-trailer always supplies good stuff.4868
by: John S.10/21/2010
Is this review helpful?
Great little helper. I love this little item. It makes checking the function of my wiring simple. I use it as the full-time cover for my flat four-pole connector. I wonder if anyone driving behind me ever notices the tiny LEDs at night.3534
by: Bryan10/23/2008
Is this review helpful?
Peace of mind This is a very inexpensive way to make sure that everything is working correctly before you hook up to the trailer and keeps the dust out too.1380
by: Dave W.05/09/2013
Is this review helpful?
A Handy item to use for testing 79623
by: Joan04/15/2013
Is this review helpful?
This does exactly what it's supposed to do - show you whether the vehicle is correctly wired so you can isolate an electrical problem in the vehicle from one on the trailer. Thanks.76179
by: Steven04/13/2013
Is this review helpful?
makes testing simple 75832
by: Jerry K.03/09/2013
Is this review helpful?
Simple tester that works as expected in indicating whether your lighting system is functioning properly. I would recommend this to others if asked.69765
by: Jim P02/18/2013
Is this review helpful?
I love this cover. 66869
by: Arnold02/13/2013
Is this review helpful?
Quality goods and shipped promptly. Look forward to doing additional business with etrailer.66216
by: Jim11/21/2012
Is this review helpful?
Cool and cheap little tool to prove your wiring installation in seconds. Will probably use to check out the trailer lighting connection once per year for safety's sake.59894
by: Al C.11/19/2012
Is this review helpful?
Works! 59731
by: BOB L.11/12/2012
Is this review helpful?
Great idea. 59314
by: JR Woodworker11/09/2012
Is this review helpful?
Made it real easy to see, is I had the power to the wires working59112
by: Ken Dorshorst09/17/2012
Is this review helpful?
This is a great tool. 54978
by: Jon C09/11/2012
Is this review helpful?
Covers like one provided and gives a quick check of proper operation54274
by: Josef Hoffman08/29/2012
Is this review helpful?
The lights work as advertised. The rubber retainer tore off really easily, though. I doubt that the whole thing would last too long if left out in the weather. 53506
by: Luke D.08/15/2012
Is this review helpful?
Very Easy to install. Protects the wiring from the elements. It also helped me make sure the wiring was done correctly. I could easily check my brake and signal lights when I was done.51764
by: chie fred07/27/2012
Is this review helpful?
great tool in 30 seconds you know if your cable is working - running, turn, brakes, flashers49566
by: Sam P.07/07/2012
Is this review helpful?
Great. 47076
by: AD06/27/2012
Is this review helpful?
Does what it's supposed to. Quality co nstruction.45903
by: Anthony06/03/2012
Is this review helpful?
Handy little product. I was able to confirm my new trailer wiring harness functioned properly without actually having my boat at my house (it was still in storage). Also an easy way to confirm before putting all the trim pieces back together on your vehicle. Also a diagnostic tool if you have trailer light issues. Thumbs up.42584
by: JR05/26/2012
Is this review helpful?
This wiring cover is great. It keeps the wiring connection clean and you can easily check if your connections are working by using the light controls of the vehicle.41740
by: James M.05/11/2012
Is this review helpful?
A must have to make sure everything is working the way it should.40116
by: Ron K.04/29/2012
Is this review helpful?
Didn't come with instructions, but after plugging it in and checking the running lights, brake lights and turn signals it is self explanatory.38736
by: Dean03/26/2012
Is this review helpful?
It's a great little tester. Beats hooking the trailer up to see if you got the wiring working on your vehicle side. Blinkers,Brakes,and running lights. Love it. Dean in Maine35190
by: Matt E.02/11/2012
Is this review helpful?
I bought this thinking It could double as a cover, but the wiring came with an attached cover already. At least I can test the wire, when I need to now rather than using it for a cover. 31441
by: todd10/24/2011
Is this review helpful?
had no problems putting hitch on. everything went smooth. the video really helped. the paper instructions were worthless26002
by: Jose C.10/18/2011
Is this review helpful?
Great products, reasonable pricing, great service.25738
by: LED cap (stop, L and R)09/14/2011
Is this review helpful?
I like it and it confirmed immediately that the wiring kit worked - Iuse this as the cap (did not cut the connected cap off the plug - just positioned it behind the plug so it doesn't show)23967
Ask the Experts about this Hidden Hitch Accessories and Parts
Do you have a question about this Accessories and Parts?
Info for this part was:
At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
