Bulldog® 580403 - Coupler Lock

8 reviews|Item # mpn1627637|Similar Products
Universal Fit
  • Not Vehicle Specific
Authorized Dealer
$36.94
In Stock (35) - Ships within 24 hrs
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Vehicle Fitment

This part is universal

Specifications

Package TypePlastic Shroud
FinishChrome

Features

  • Stronger Break Resistance
  • Dual Self-locking Design
  • High Security Square Key Design
  • Includes Dust Cap
  • Key required to remove ball mount from receiver
  • Key required to remove or attach coupler to ball
  • 1-1/4" receivers use 1/2" shank
  • 2" and larger receivers use 5/8" shank
  • Stops theft or unauthorized usage of trailer
  • Prevents theft of valuable ball mount

Product Details

Universal Coupler Lock (580403) by Bulldog®. Finish: Chrome. Limited Lifetime Warranty. Don't let your trailer walk away. Secure your ball mount to the vehicle with a locking hitch pin, and then lock the coupler so the trailer either can't be hitched or unhitched without the key. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials using up-to-date equipment, it ensures everlasting reliability and enduring value. This product is distinguished by total quality assurance, unsurpassed by anybody else.

It takes a key to start up your tow vehicle and drive it away. But anyone with a tow vehicle of their own can uncouple your trailer, couple it to their truck, and drive it away. So a simple lock through the coupler can keep it from being uncoupled. And an unattended trailer can meet the same fate. The same lock can keep your coupler closed, keeping someone else's trailer ball from mating, preventing theft. But thieves are canny; they know that even if the coupler is locked onto your hitch ball, it's easy to pull the pin on the ball mount, mate the mount with their receiver while it's still locked, and steal your boat, RV, race car or whatever.

Even if the trailer is locked away behind a fence, if you leave the ball mount in place while not towing, it's a matter of ten seconds to pull the pin and boost the mount. Especially if the mount is expensive, like an elaborate weight-distributing system. You'll need a small lock for the coupler, and a locking pin for the ball mount. Be aware that 1-1/4" receivers use 1/2" diameter pin, and 2" and larger receivers use a 5/8" pin.

Bulldog® gooseneck hitches, gooseneck couplers, trailer couplers and wedge-latch elements feature a high-strength, heavy duty design that makes them the most Tough and Trusted trailer components available today. From 1920 the Bulldog brand has been the choice of Military and Manufacturers everywhere. Bulldog jacks in particular are built with uncompromising strength and materials engineered to hold up under rigorous working conditions. The secret to success is having equipment you can count on and Bulldog is the perfect choice where trailering is concerned.

Brand:
Part Number:
580403
UPC:
783192025814

Reviews

(8)
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Bulldog® 580403 - Coupler Lock
/5
1-8 of 8 Reviews
5 of 5
Bulldog Gooseneck Coupler
Bulldog® 0289250300 - Adjustable Round Gooseneck Coupler with Outer Tube for 2-5/16" Balls (25000 lbs)
Product works great. It is a OEM replacement on a lot of trailers!
Posted by Earl'S Repair Service Inc. Earl (Pearisburg, VA) / June 18, 2018
Great product. Easy install - smooth positive trailer hook up. Strong design - eliminates the worry. This is the way to go.
Posted by John (Billings, MT) / November 29, 2016
5 of 5
Coupler Awesome Thank You Ronnie
Bulldog® 028244 - Straight Mount Coupler with Pin Style Latch for 2" Balls (5000 lbs)
Awesome, thank you.
Posted by Ronnie (Reedley, CA) / November 11, 2016
This hitch replaced an old one I had to put a bolt through to keep it secure. It had come loose once but I was lucky the safety chains kept it with the truck but the big dent still remains in the fender. Bulldog hitches are simple and I no longer worry about whether the trailer is securely attached to my vehicle. I just cut the old welds, ground everything, smooth, welded the Bulldog in place, added some spray primer, (the whole trailer will get paint when it warms up), and I am ready to roll. Both my trailers have been modified with Bulldog hitches.
Posted by Leland (Show Low, AZ) / February 04, 2016
5 of 5
Adjustable Coupler Channel
Bulldog® AC300 0300 - Trailer Coupler Adjustable Accessory with 8" Height, 4 Hole, 3 Position Channel
The adjustable channel & coupler is a great addition to my trailer? it will help when connecting to different high tow vehicles, I already have a few different drop draw bars but this will make it even easier to set up the high properly. Excellent product, heavy duty.
Posted by Jason (Snohomish, WA) / September 08, 2015
5 of 5
5 Stars
Bulldog® 67 0801 - Wedge Latch for 2-5/16" Balls
Great product easy instructions
Posted by David (Bainbridge, GA) / May 16, 2014
5 of 5
Bulldog Coupler Head
Bulldog® A2003C0317 - Adjustable Coupler with Cast Head and 3 Position Channel for 2" Balls Diameter (8000 lbs)
The product arrived right on time. Just what I ordered and couldn't find it anywhere else for a lower price.
Posted by Paul (New Glarus, WI) / July 03, 2013
5 of 5
Ok
Bulldog® 43805W0317 - Cast A-Frame Gooseneck Coupler with Wedge Latch (8000 lbs)
Overall, the product we ordered was great, but receiving it was a bad experience, it took too long to get the right one.
Posted by Louise (Canaan, VT) / February 27, 2013

Questions and Answers

(0)
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