The 4500 Series HD works as an application on existing Shur-Loks on grain carts. Reliable motor* with all-metal casing and patented dual-pivoting motor mount operates heavy-duty extruded aluminum arms – the strongest on the market, with a lifetime guarantee against breakage. Super-strong tension arm opens and closes the tarp with smooth, consistent tension. Our exclusive dual-pivoting, Durabuilt™ motor mount allows for any misalignment of the roll tube without stress to the motor or arm. Arm is easily moved by 4-spiral torsion springs (heavy-duty front cable return is included with single-arm series).
*Motor may differ from those used on grain trailer applications.
• 4-Spiral Torsion Springs
• Heavy-Duty Aluminum Bracket
• Heavy-Duty Aluminum Arm
• Cab Wiring Kit for Standard Electric Hardware
• 90° Worm Gear Durabuilt™ Motor
• Heavy-Duty Front Cable Return