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Get your ride SmartPlug ready. Replaces the fiddly twist lock inlet with a more secure and safe connection. Plug in with ease and have one less thing to worry about. Installs into the same footprint as a standard inlet with no modification needed.
Features:
Specs:
SmartPlug vs. Twist Lock
RV and boat owners have long relied on Twist Lock style connections for powering their rides. For years, it has been the best option for connecting to shore power. It's been reliable, but most know it's not without disadvantages:
SmartPlug's connector addresses each of these concerns and does all of the heavy lifting.
Locking arms grab the inlet, a clamp inside the plug body holds the cord, the inlet cap snaps to the top while in use, and the integrated seals weatherproof the connection. This helps prevent the wiggly, dirty connections that increase electrical resistance, which creates potentially dangerous heat.
Since it uses a square plug face, SmartPlug is able to use flat pins which create far more surface contact, further reducing the risk of high heat and electrical arcing. The square shape and flat pins also make it easy to plug in - no more twisting or guessing if the pins are lined up correctly.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
AJ What's up, everybody, it's AJ with etrailer.com. Today, we're gonna be checking out the SmartPlug replacement RV power inlet, 50 amp, and the color is gonna be gray on this one. Is gonna replace the plugin on your rig. So you probably have the plug in and twist version, and there's some issues with that. It's not exactly waterproof. It does overheat from time to time.
There's a lot of stress on the cord, too, hanging out there. This addresses a lot of those. I know I had issues with the push in and twist version, just because sometimes you can't line up quite right and you go to turn it or tighten it down with one of those rings and it just won't tighten up. You can't seem to get it, especially at nighttime, when you go to put it in there, you might not be able to see it right away. You can see these problems are fixed on this one.
It's got a specific shape to the plug. So you can match up that cord for this plugin in very easily. Now it doesn't come with the cord, you'll have to get that separately, but this is just converting your rig to this system. The system works really well. It's got triple weatherproofing.
The straight pins there on the inside are way better, make a far better connection. Actually, with this connection, it's 20% more contact than the curve design, so this is gonna get more power through there and be safer about it too. I like it 'cause you can line up and plug in on the first try, even in the dark, you know. Okay, match the shape, plug it in. You got a seal on the top here.
It's gonna further protect it. It closes very well, I've got it right there. You see, I can't just open it with my hand easily. You kind of do have to get in there, open it, so I like that that sturdy cover's gonna stay shut. It's gonna be really easy to install, too, and replace your old one. So you can see it's color-coded here on the back. You're gonna match up those wires with the one on your rig side already. When you remove the old cover, strip back those wires, you'll connect those in there. Comes with the Allen wrench to tighten that down on each side, so here, here, here, and here, and that'll hold the wires nice and tight and keep them in place. You push this back onto your rig side with the gusset here on there. And once it's on your rig, you'll use the existing hardware you use to remove the old inlet, to install this one and you're good to go. It's pretty easy to install. It makes it very easy to use, too, just that straight plugin. Also takes some stress off the cord that, like I said, the other twist-in one hangs down there, this one has a sleeve design so it's gonna go in here, hang out a little bit more. And then the stress will actually be on the part here rather than on the cord that's hanging down. That about does it. Thanks for hanging out, and I hope this helps..
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
Ratings & Reviews
East installation made power hookup easy and reliable.
The high quality kit install was very straightforward to install on my Sprinter van and should give many years of safe camping. Very pleased.
I haven’t installed the SmartPlug yet, it’s a bit cold for that. I have inspected the plus though. It’s a snug fit! So much better than the one in my trailer. I love how fast it got to my hous also Thank you for your service. Michael
I'm giving this Smartplug cord and the Smartplug male trailer wall socket a 4-star rating, but not because the product isn't EXCELLENT. IT IS! On this 2-week camping outing, we have nearly lost our 37-ft. Rockwood Signature travel trailer TWICE to fire, due to the common, everyday 'Twist LOC" RV socket and matching cord overheating while operating our 50-amp trailer on 30 amps (coming between 2-3 amps of 30 amps, but not OVER 30 amps.) The standard 50 amp female power cord end and male plug installed into the side of the trailer MELTED while running on 30-amp service, drawing 26 to 28 amps continuous when both A/Cs were cycled on at the same time. Neither the cord itself nor the trailer's power feed cable ever got hot--ONLY THE CONNECTION where the power cord and trailer plug MEET. It nearly started a fire in the rear wall of our trailer. Melted wall insulation, charred the edges of the fiberglass siding and nearly burned the underlayment underneath the skin. Fortunately, it was NOT a wood product. Both the female cord end and the wall connector plug were melted and charred. Both were replaced by the mobile RV tech who does all of our RV work (I am disabled.) The new cord and trailer plug then melted again 24 hours later. I ordered this Smartplug cord and trailer plug from Etrailer and got it in 4 days. Since new Smartplug cord & plug were installed, I am still pulling 25-28 amps when both A/C compressors are running, but I can feel very little heat on the outside or inside (where the trailer wiring is run into the wall), and the highest temperature I've recorded with the laser temperature gun is 102.5 degrees (high air temperature has been 95 degrees). PROBLEM SOLVED!! The only reason I gave these Smartplug items 4 stars is because of their COST!! The 30ft. Smartplug trailer cord and accompanying male trailer wall socket cost me $718!!! That's pretty close to RIDICULOUS!! They DID, however, SOLVE MY OVERHEATING WIRING CONNECTION PROBLEM!! Read the Smartplug ads and watch their YouTube video from eTrailer (can be reached on eTrailer's website). THEY AREN'T LYING!! Smartplug saved our very expensive RV!!
Very good so far. Installation of the power cord was harder than I thought- but eventually got it done. I am overall very happy with my purchase.
I installed on my travel trailer yesterday and very impressed with the quality of this product. Very happy with this.
I love it, noticeable difference of power when charging.
I found the installation of the inlet easy and the modification of the connector very easy. The instructions were very easy to follow and very comprehensive.
The only issue was the rear cover (pictured) for the inlet could not fit at the front location of may 2019 Airstream Flying Cloud 27 ft. FB. I also installed the cable port.
Was a little tight but lubed inside the plug holes and works great now.
This is one of the best engineered products I have purchased in a long time. The quality is excellent with clear easy to understand instructions. Highly recommend Smart plug products.
better than the stock 50 amp connector. Cutting and fitting 8awg wire was the hardest part to fit into the plug. The rest was easy.
awesome product, highly recommend, etrailer has been great through the whole processit took about 45 minutes to install as my 5yr. old great grandson was helping me,
It is so easy and quick to hook up power when arriving at the campground. Just as easy to disconnect. Had 2 days of rain, just over an inch, and no issues with water intrusion. My wife used it for the first time and said is that it! Yes, it is expensive, but worth it.
Easy to install, very firm connection to trailer. Much, much better than the old twist-on 30 amp plug and inlet
Product appears to be of excellent quality and very sturdy. If only the RV manufacturers would install these at the factory. I will be installing this over the weekend.
Well instead of part number sm67fr I was sent b30assynt I guess that's the upgraded part. But this was 2nd b30assynt that the d rings didn't open enough to except 10 gauge strand . Had to flie d rings some and plastic cover. Will see how long it lasts. It did come in time from e trailer.
I just installed the smart plug on my Airstream this morning. It was very straightforward with the instructions. This new smart plug is easier to deal with when you are attaching it to the cable with the way the lock nut holds the cable in place going into the back of the plug.That was a pleasant surprise. I like the new design. Pleased so far!
The installation and instructions were straightforward on this plug. Very happy with e-trailer shipping as well. Always on time and the package always looks good when arrives. The trailer you know what you're doing. Definitely keep up the awesome work.
This is the exact part I needed to replace the original Smart Plug receptacle on my 2023 Basecamp 16x (which became damaged due to a loose wire). Customer support, price, and shipping speed from etrailer was great. I will say the new rear cover on this item was a little tricky to install, but it was doable with a little patience.
This Smart plug inlet plug is true to size. I've used the Smart Plug system on other RVs and am familiar with the better contact area. I was delighted to see that this plug fit inside the connection center of my campervan, and still be able to close cover with no bulging.
The quality and design is fantastic. The cover feels soild not flimsy or cheap. Easy install . Have not taken it out yet but looking forward to going out and not dealing with the threaded ring that never felt secure.
I thought this was rather expensive until I received it. Very well built and so much more solid than the plastic one that came on my 5th wheel. My only complaint is that I wish there were an option for a 90-degree bend so the cord would hang from the plug rather than stick straight out. The weight of the 50AMP cord may cause an issue over time, but we will have to wait and see. My old connector was at 90 degrees, and it appears they offer this in the 30AMP option.
Easy to install and so much better of a system to hook up power, plug and go. Highly recommend the Smart Plug for safety and ease of use, plus looks good too.
I like this way more than the old twist one. Like the 2 levers on the sides that lock it in. Color coded for simple hook up, made my own 15/20amp dog bone in addition to my 50amp. Not looking back.
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Brooke M.
5/1/2025
It looks great, Shawn! Thanks for sharing all the photos--it's nice to see how things look in real life :)