A hitch device for converting a conventional wheelbarrow into a towable trailer. The wheelbarrow includes a tub, handles and at least one wheel. The hitch device includes an elongated tow bar, first and second engagement members, and a vehicle coupling assembly. Each of the engagement members has a handle capture, a cross bar, and a base. The handle capture is configured to slidably receive one of the wheelbarrow handles, and is connected to the cross bar. The base also projects from the cross bar. The first engagement member is separate from the tow bar, whereas the second engagement member is affixed to the tow bar. The handle captures are received over the wheelbarrow handles, respectively, and the bases fastened to one another to connect the first engagement member with the tow bar such that the hitch device is mounted to the wheelbarrow handles in a wedge-like fashion.