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Hopkins 48510 Endurance Die-Cast 7 RV Blade Trailer End Plug

4.4 out of 5 stars 23 customer reviews

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  • Enter your model number above to make sure this fits.
  • Ergonomic pistol grip for easier handling
  • Ultimate weatherproofing protects connection
  • Includes terminal grease, mounting bracket, and hardware
  • Equipped with die-cast zinc housing
  • Easy to install
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30 new from $4.34
$9.97 & FREE Shipping on orders over $49. Details Only 5 left in stock. Sold by Mid Atlantic Discounters and Fulfilled by Amazon. Gift-wrap available.

Frequently Bought Together

  • Hopkins 48510 Endurance Die-Cast 7 RV Blade Trailer End Plug
  • +
  • Hopkins 48480 Endurance 7-Way Tow Vehicle End Socket
Total price: $23.75
Buy the selected items together


Product Information

Technical Details

Brand Endurance
Model 48510
Item Weight 5.8 ounces
Product Dimensions 2.5 x 4 x 6.8 inches
Item model number 48510
Manufacturer Part Number 48510
OEM Part Number 48510

Additional Information

ASIN B004BE7VF8
Customer Reviews
4.4 out of 5 stars 23 customer reviews

4.4 out of 5 stars
Best Sellers Rank #35,066 in Automotive (See top 100)
#62 in Automotive > Exterior Accessories > Towing Products & Winches > Hitch Accessories > Hitch Covers
#1,458 in Automotive > RV Parts & Accessories > Hitching & Towing
Shipping Weight 8 ounces (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item is not eligible for international shipping. Learn More
Date First Available September 8, 2010

Warranty & Support

Warranty, Parts:PartsWarranty, Labor:Full Manufacturer's Warranty

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

By Charlez on December 6, 2012
Verified Purchase
I haven't used this plug very long but so far it works well. The terminals inside are fairly large and easy to connect to. Getting the cable grip back together took a little extra effort. (This will vary depending on what cable you are using.)

I was slighly concerned with the angle at which the cable exits the plug. In the picture it looks like it would be at about a 40 degree angle (it isn't). The socket on my truck would have this pointing to the side, away from the trailer, not down. After installation and testing, the angle is minimal and works fine with a horizontal socket. (see customer pictures)
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This was exactly what I was looking for... a durable plug with strong wire connection points. Blade connections are thick, screw terminals are strong, the metal body isn't going to break with use, and wire management will protect cable from pulling out.

There is a slight angle to the exiting wire which probably mimics what the natural wire droop would be when plugged in. It isn't an issue. The overall body fits well in the hand for inserting and removing from the vehicle connector.

The provided metal clamps on the screw terminals are OK for smaller gauge wire, but awkward for larger gauges. I removed the clamps and used crimped ring terminals with lock-washers which fit easily on the screw terminals and cleared the inside of the metal shell... very rugged and reliable. I also used their provided waterproofing grease on these connections after testing. I expect these will be permanent connections.

The metal frame and plastic rear shell require stripping off the outer cable insulation essentially to the entrance grommet for wires to pass thru the frame. I would leave a little extra wire length (e.g., extend an inch past front of metal shell) to make connecting wires to screw terminals easier. Extra wire will easily fit inside the large shell. I cut the wires close to minimum length making it more difficult to make connections than necessary.

I needed to cut the rear grommet cone to fit my trailer cable, and left it a tight fit. However it can be difficult to push the cone onto the cable. I used slick tape over the cable jacket edge to guide the cone onto it.
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This is an odd piece of kit. Whilst the body is metal and very robust, the plastic working end is only held in by a small screw through the metal casing that screws into a piece of plastic less than 1/4" thick. Lots of strain on this when plugging and unplugging.

There is no cable clamp to take the strain of the wire. Sure you can tie wrap the cables to the metal bar inside as suggested, but that makes it difficult to take apart in future.

Cables coming in have to be routed half each side of a metal bar to get to the business end. Now my setup has individual cables inside an outer braid that can be undone and pulled back. Not sure how a sheathed cable would work though. Once you strip enough sheath off to get the loose cables out of the front for fitting to the clamps you would have to fold all the wires to get the front back in without the sheath coming out; maybe with small wires but not with anything like 12ga.
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Verified Purchase
This was a worthwhile upgrade to our trailer's factory plug, which seldom made a good connection without sanding the corroded contacts. The contacts appear to be high quality. The included holder is a nice bonus although you'll probably want to use different screws if you're attaching it to the steel beams of your trailer tongue - these "self-drilling" screws aren't going to cut it, and something with a hex head makes it easier to apply the torque necessary to bite into steel. The only reason I'm subtracting a star is that the black plastic tail of the plug, where the wire enters, has a center screw and interior braces that make it unnecessarily difficult to route a thick bundle of wires. I still recommend this and would buy it again, but save yourself some time and pay attention to how you'll route the wires through the tail piece before attaching the wires to the connector; it will likely be easier if you split the bundle and route half the wires above and half below the center screw.
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Fantastic tow plugs and I'm the envy of my pals. ONLY drawback is it's really hard to get the wires routed properly in the back so the plastic cover closes tightly. Should have been a little more thought put into the design of that portion. Still the best 7 way I've seen and I put them on all my trailers.
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I bought 3 of these to replace the connectors on some commercial utility trailers. I had read the reviews about having some difficulty negotiating the design of the inside of the connector. My trailers had 14 ga wires so that was a lot of wire to try and stuff inside the connector. To have enough wire to get through the body and make the terminal connections, you end up with excess wire once you fasten the end cap on. That can be dealt with, particularly if you have smaller gauge wire, as you can kind of wad it up inside the connector.

Another significant problem was the complete lack of strain relief for the cable going into the connector. They say "use the included zip tie to secure the wires." Zip tie was not included and there's nothing to really secure it to. Having a setscrew/clamp design as other connectors do would be much better. Second - the screw that secures the two black plastic halves together will strip out the plastic threads right away, so then that part doesn't hold together. I took it off and replaced my old one until I find something better. There has to be a better designed metal connector out there, or maybe I ought to just stick with the simple ones!
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