Bulldog Chrome Hitch Pin & Coupler Lock Combo Bulldog
(Bulldog Part #: 580404)
In Stock - Ready to ship today!

This item is eligible for free shipping. Details

$50.52 You Save $14.43!


Item Added to Cart

View Cart & Checkout

Bulldogs' patented ball bearing locking system is the strongest on the market. Coupler lock has 1/4" pin diameter and offers a 5/8" span. The hitch pin has a 5/8" diameter and works for 2" receivers.


    Fits2 Inch receivers


    • 1/4 Key Turn Unlocks, Push In To Re-lock
    • Chrome Plated To Resist Corrosion
    • Two Keyed Alike Keys Included


    1919 - In a small third floor room over his car dealership in Wausau, Wisconsin, Thomas J. Jacob begins making high-quality precision tools of his own design. His venture becomes known as the Hammer Blow Tool Company. The death of a favorite hunting dog due to an accident involving a poorly-designed trailer hitch leads Jacob to develop the first drop-forged ball-and-socket trailer hitch, which he names the "Never Lets Go" Bull Dog. More inventions follow, positioning Hammer Blow at the forefront of the trailer industry at its infancy.

    1930's - Demonstration models of camper trailers built by Jacob at the Chicago World's Fair set off a period of rapid growth in the industry.

    1940's - Jacob dies in 1945. His wife, Lula, takes over Hammer Blow and guides it with great success for more than 20 years.

    1960's - In 1967, Lula Jacob sells Hammer Blow to Neway Equipment Company of Muskegon, Michigan, which later sells to Lear Siegler, Inc.

    1970's - In 1977, private investors led by Thomas J. Reinhart purchase and rename The HammerBlow Corporation. Expansion of the mechanical jack line and related products continues for more than a decade.

    The above information has been provided by the Manufacturer, and we cannot guarantee the accuracy thereof or endorse the opinions expressed.