Do you own the Hein-Werner HW93776 Engine Stand and need a reliable adapter for Mack engine repairs? The Hein-Werner HW93776-3 is a genuine USA-made accessory designed specifically for the HW93776 Engine Stand, ensuring a secure fit for Mack 672, 673, 675, and 711 Series in-line 6-cylinder engines. Built for professional mechanics, this durable adapter provides the perfect solution for heavy-duty engine work. Trust Hein-Werner for unmatched quality and compatibility.