bing tracking image
  1. Accessories and Parts
  2. Blue Ox
  3. Base Plates
  4. Locks
  5. Keyed Unique
Blue Ox Base-Plate-to-Tow-Bar Lock

Blue Ox Base-Plate-to-Tow-Bar Lock

Item # BX8859
Our Price: $27.03
You Save: 37%
Accessories and Parts
Shipping Weight: 0.87 lbs
Add to cart
In Stock
BX8859 - Keyed Unique Blue Ox Base Plates
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed


Need help with installation?
Locate installers near me
Secure your Blue Ox tow bar to one of the base plates on your towed vehicle with this 1/2" diameter, deadbolt-style lock. 1-800-940-8924 to order Blue Ox accessories and parts part number BX8859 or order online at Free expert support on all Blue Ox products. Great prices and Fastest Shipping for Blue Ox Base-Plate-to-Tow-Bar Lock. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (17)
  • Q & A (0)
  • Videos (1)
  • Photos

Blue Ox Accessories and Parts - BX8859

  • Base Plates
  • Locks
  • Blue Ox
  • Keyed Unique

Secure your Blue Ox tow bar to one of the base plates on your towed vehicle with this 1/2" diameter, deadbolt-style lock.


  • Lock replaces one of the pins that holds tow bar to base plates for secure, tamper-resistant connection
    • Designed for use with Blue Ox tow bars and base plates
    • Helps to prevent accidental unhitching
  • Constructed of forged and machined hardened steel
  • Chrome finish resists rust and corrosion
  • Snap-on cover keeps keyway free of dirt and debris
  • 1 Lock and 2 keys included
  • Made in the USA


  • Diameter: 1/2"
    • Total length: 5-13/16"
    • Inner length: 2-11/16"
  • 1-Year warranty

BX8859 Blue Ox Base Plate Lock - 1/2"

Video of Blue Ox Base-Plate-to-Tow-Bar Lock

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Blue Ox Trailer Hitch Receiver Lock Review

Customer Satisfaction Score:

Customer Reviews

Blue Ox Base-Plate-to-Tow-Bar Lock - BX8859

Average Customer Rating:  4.9 out of 5 stars   (17 Customer Reviews)

Secure your Blue Ox tow bar to one of the base plates on your towed vehicle with this 1/2" diameter, deadbolt-style lock.


As always Blue Ox products are great. We have used Blue Ox equipment for 22 years.


I have yet to use them.





The pins are replacements for attaching our car to the Motorhome. The pins were more than I had anticipated. I got a better product at a very good price. You can’t beat that!



Very good, no complaints


I needed a base plate to tow bar lock quickly. After checking several websites including the oem site, I found the best value with Etrailer. Great site, everything you might need for towing. Would use them again.


My experience with etrailer was seamless. I called in a small order, they confirmed it in their inventory and seemed genuinely happy to answer my need. It shipped promptly and I appreciate it. Mike E. (California)


Product was shipped quickly, arrived in good condition, performs as advertised. etrailer personnel were extremely helpful answering questions when reached by phone. A good online commerce experience.


Great product and the service at etrailer were exceptional as usual.


looks strong i have not used them at the time but have no worry about using them.

Hugh E.


This is what I should have done to start with instead of a tow dolly. Hooking this thing up is great and so much easier. everything is set up level and I love it.


etrailer has always followed thru!


Very good service and the product was delivered on time. Have not used yet. Was bought as a spare.



Great! Actually arrived four days early.



great product works as described



Work great.



See what our Experts say about this Blue Ox Accessories and Parts

Do you have a question about this Accessories and Part?

Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Robert G
Expert Research:
Robert G
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Wilson B
Updated by:
Wilson B

At 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.

Product Experts Available Now!
Call 1-800-940-8924