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Blue Ox Base Plate, Tow Bar Receiver, and High-Low Adapter Lock Kit - Keyed Alike - Qty 4
Blue Ox

Blue Ox Base Plate, Tow Bar Receiver, and High-Low Adapter Lock Kit - Keyed Alike - Qty 4

Part Number: BX88177
In Stock
$86.73
Retail:$110.00
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Prevent theft and accidental disconnect of your flat tow setup. Secure your Blue Ox tow bar to your Blue Ox base plate, the hitch receiver, and high-low adapter with these four steel locks. The snap-on covers keep the locks free of dirt. Keyed alike. 1-800-940-8924 to order Blue Ox accessories and parts part number BX88177 or order online at etrailer.com. Free expert support on all Blue Ox products. Great prices and Fastest Shipping for Blue Ox Base Plate, Tow Bar Receiver, and High-Low Adapter Lock Kit - Keyed Alike - Qty 4. Accessories and Parts reviews from real customers.
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  • Reviews (195)
  • Q & A (0)
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Blue Ox Accessories and Parts - BX88177

  • Tow Bar
  • Tow Bar Base Plate
  • Locks
  • Blue Ox
  • Keyed Alike

Prevent theft and accidental disconnect of your flat tow setup. Secure your Blue Ox tow bar to your Blue Ox base plate, the hitch receiver, and high-low adapter with these four steel locks. The snap-on covers keep the locks free of dirt. Keyed alike.


Features:

  • Secures your tow bar to the base plate, hitch receiver, and high-low adapter to prevent theft and accidental disconnect
    • Replaces original pins
  • Blocks out dirt and moisture with snap-on covers
  • Constructed of forged and machined hardened steel
    • Chrome finish resists rust and corrosion
  • Includes 2 base plate locks, 2 receiver locks, and 8 keys
    • Keyed alike
  • Made in the USA


Specs:

  • Fits Blue Ox tow bars and base plates
  • Base-plate lock body diameter: 1/2"
    • Total length: 5-13/16"
    • Inner length: 2-11/16"
  • Receiver lock body diameter: 5/8"
    • Total length: 5-13/16"
    • Inner length: 2-11/16"
  • 1-Year warranty


BX88177 Blue Ox Baseplate and Towbar Receiver Locks 4 Pack - 2-1/2" and 2-5/8"





Customer Satisfaction Score:

Ratings & Reviews

4.8

195 reviews
5 Stars
(172)
4 Stars
(13)
3 Stars
(2)
2 Stars
(2)
1 Star
(6)
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by:
I had to use the lock kit a little different than what it was designed for as I have a falcon roadmaster tow bar but made it work
Gwendolyn Y. profile picture
Etrailer Expert

Gwendolyn Y.

4/2/2026

Hey, if it works it works, right?

by:
Quality product. Good customer service and support. These locking hitch pins are perfect fit for my blue ox flat tow bars. Snug fit. Bolt cutters can't reach. No more stolen pins at truck stops. Great price and fast shipping.
by:
I put this hitch on my 2017 Winnebago Vista (Base 2017 Ford F-53), I needed to update the default hitch that was only 5000lbs to flat tow my truck which was just over weight at 5600lbs and yes I double checked the max the winnie can pull which is 7500lbs. So now I have more than I need to pull the weight. As some of you may know, looking for an affordable hitch for something that is custom is difficult. I did look into the universal weld-on but that would not work either as there is a bracket that was in the way to hold the generator. I was not looking to cut and weld. This bolt-on fits great and looks good. The receiver sits just under the original location by 2 inches.
Brooke M. profile picture
Etrailer Expert

Brooke M.

5/27/2025

You did a great job, Ryan - it looks awesome! What are you towing now that you can unleash the full power of the Winnie?!

by:
Second set I have purchased in 5 years of full time travel. The locks simply wore out. They continue to be my first choice.
by:
Flawless:

Product and service from e
trailer

Scott

by:
Wished I'd had this item earlier. When I purchased my Blu Ox system the local RV dealership did not carry a similar item. So, etrailer is a life saver for useful products to the outdoor community. This package provides a number of keys, so you can have one on each family member's key ring -- truck, RV, and SUV. Love that one key can unlock/lock each hitch-pin on the Blue Ox flat tow system; no more fumbling with multiple keys. And, provides added security while away from your rig.
by:
Enjoy the extra security
by:
Nice to have all keys alike, barrels sealed and smooth operation
by:
Nice well constructed. Easy to use.
by:
The product seems great, but it is the service I found incredible. One of the locks seemed to be bent iside and sometimes it stuck and sometimes it would not latch properly. I was not going to use a defective item to hold onto a new Jeep and called etrailer to see if it could be made right easily. At first they tried to see if they had one in stock that could be used as a replacement, but with the same key since all 4 are keyed the same. No luck, so etrailer called me back and they had contacted Blue Ox to have a replacement with a matching lock shipped directly to me. It showed up Fedex only a few days later. Not too often one finds service like this. Since they I have ordered more items. And will continue to do so.
Art M. profile picture

Art M.

8/19/2015

Performing fine. The tow car has not detached once using these locks, Isnt that the best measure? Occasionally squirt a bit of lubricant in lick mechanism

by:
All components very well made and solid, with good finish. Delivery packaging offered good protection. Installation instructions clear.

Service from etrailer.com was excellent - questions answered fully and promptly before order placed, price promise to match other supplier prices honored, order out for delivery within 24 hours with tracking information, and e-mail sent immediately after products delivered with supplier product info and instruction PDFs all gathered together in one place.
Ian V. profile picture

Ian V.

11/1/2017

Thanks for the very professional follow-up on the Blue Ox products I bought. In the end, I only used the set-up for about 3,000 miles before I changed my rig from a Class C towing a Jeep Wrangler using the Blue Ox parts to a Jeep Grand Cherokee towing an Airstream. Everything worked just fine for those 3,000 miles and all the parts have been sold on, practically as new, on [on-line].

by:
My order was filled, shipped and received very quickly. It actually arrived a day before scheduled. All items look great.
by:
As advertised. These locks fit perfectly. Be aware that the key must be in the lock and turned to install. The key stays in unlocked position, and must be turned to locked position to remove key. This is probably best way, since once the key is out you know it's installed correctly, since key won't turn unless all the way on or off.
Jhw profile picture

Jhw

12/15/2017

Great. Having all keys the same really makes hook up easy.

by:
Great product that provides assurance your toad stays attached! It takes a bit longer to attach due to the locking/unlocking however these pins will not accidently loose a cotter pin and come out. Well worth the small inconvenience.
by:
This set is great for securing the tow bar to the base plate tabs as well as the tow bar and high-low adapter to the hitch all with one key. Convenient!
by:
After one season of use, the larger pin locking mechanism hangs up and cannot be trusted despite keeping it clean and lubed. Will be using the second one this winter with hopes it offers better service life.
by:
Great Service. Good Products. Installation instructions were clear and well written. Full installation completed with no problems. Will be taking flat tow vehicle with RV for maiden voyage this weekend. Thanks for good service and support.
by:
I really like these - especially the fact that they are all keyed the same. Although you get a total of 8 keys (2 for each lock), they are all the same - any key will open all the locks.

I dinged it to 4 starts because 1 of the locks was stiff and hard to turn. As an example of their excellent customer support, etrailer accepted the return (postage paid) and offered to replace them at no charge.

Couldn't be happier.
by:
Very convenient to have them all keyed the same. Reassuring to have my towed vehicle and hitch locked to the RV.
by:
I could have looked for these locks at every store in town and not found them anywhere, wasting a bunch of gas. etrailer has the best inventory on trailer and hitch items I have ever seen. They were able to 2nd day ship them to me (for a price of course) and I had them in my possession before we left on vacation. KUDOS to etrailer. AND the locks worked perfectly for what I had come up with to secure my Hi-Lift jack to my jeep.
by:
Only gave it four because the covers are hard to get on and off. When you pull it off the whole cover comes off. One more thing I don't like they are all keyed the same but you have to use the key to put on and off the lock should be made so the lock when you put them on and not have to be turned to lock. Beside this the work great they just need to be improved That is why only four
by:
Installed the new locks on my dual receiver and the tow bar. Great to have locks that are all keyed the same. Quality service as usual! Thanks etrailer.
by:
I love that these are heavy duty, stainless, and keyed alike. They will add a lot of security to my tow set up. My only regret is that I wish I had gotten the five (5) pack so if I ever put anything in my towed vehicle hitch, it would match also. They were easy to find and order, and shipped as promised.
by:
Not happy. Ordered the four locks so I could have matching keys. Guess what? The keys are the same match for the three locks that be came with the blue ox setup. Wasted $$ on four when all I needed was one. Wish I had known. Not happy and not sure why they fit 2 different sets of locks
by:
All the items I ordered were in stock and shipped within the specified time. They were delivered to me ahead of the scheduled time and in perfect condition. The caps BX290-0437 were exactly what I needed and etrailer.com was the only place I found that could provide them to me. I really appreciate the in stock, fast service, and professional service that I get and would recommend etrailer.com to everyone. Thank you very much for your service as it is very much appreciated.
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