✓ In stock Nylon windshield setting block for Ford F-150, F-250, and F-350 Super Duty pickup trucks. Positioned along the pinchweld before the windshield is set into urethane adhesive, this block holds the glass at the OEM-specified height and prevents it from sinking before the adhesive cures. Matches Ford OEM 4L3Z-1503296-AB for a correct-fit replacement on 2004 and newer F-Series trucks. Specifications Type: Windshield Setting Block Application: Windshield Urethane Installation Material: Nylon Vehicle Fitment Ford F-150 (2004–present) Ford F-250 Super Duty (2004–present) Ford F-350 Super Duty (2004–present) Cross-Reference Numbers Ford OEM: 4L3Z-1503296-AB SMS Part#: 20836 What is a windshield setting block? A setting block is a small nylon spacer placed on the pinchweld (the metal flange surrounding the windshield opening) before the glass is lowered into the urethane adhesive bead. It supports the windshield at the OEM-specified height above the pinchweld, preventing sinking or lateral shifting while the adhesive cures. Without setting blocks, the glass can move before the urethane achieves its initial set. Is this an OEM equivalent replacement? Yes. This setting block matches Ford OEM part number 4L3Z-1503296-AB and is a direct replacement for the factory-specified spacer used during windshield installation on Ford F-Series trucks from 2004 to present. How many setting blocks do I need for an F-Series windshield? Ford F-Series windshield installations typically require setting blocks at the lower center and lower corners of the pinchweld. Consult the Ford service manual or your urethane adhesive manufacturer's instructions for the exact quantity and placement specified for the model year you are working on. Do I remove setting blocks after the urethane cures? No. Setting blocks remain permanently in place — they are encapsulated in the cured urethane and continue supporting the glass throughout the vehicle's life. Do not attempt to remove them after installation. What pack sizes are available? Available in packs of 5, 10, 20, and 30 to suit individual windshield jobs or shop supply needs.
