Prime-line MP6703 Bi-fold Door Top Roller Guide 2 Pack

Product Description

The PRIME-LINE MP6703 is a spring-loaded top roller guide designed for bi-fold closet doors. It mounts on the top edge of a bi-fold door panel and uses a spring-loaded mechanism to keep the door tracking smoothly along its upper track. The guide features a 7/8 inch outside diameter nylon wheel that is 1/4 inch thick, paired with a plastic base measuring 3/8 inch in outside diameter. Installation requires only a 3/8 inch diameter hole drilled or present at the top of the door panel. This hardware is typically installed by general contractors, finish carpenters, or experienced DIYers during door repair or replacement work.

The MP6703 is suited for residential bi-fold closet door applications where the original top roller guide is missing, worn, or damaged. It accommodates door panel thicknesses ranging from 1 inch to 1-3/8 inches, making it a practical fit for a wide range of standard interior bi-fold door panels. This guide was commonly specified for Kenna frame bi-fold door systems, but the 7/8 inch wheel size and 3/8 inch shaft diameter are shared by guides used across multiple bi-fold door manufacturers. Each package contains 2 roller guides.

Key Features

• 7/8 inch outside diameter nylon wheel provides smooth, low-friction rolling action
• Spring-loaded design maintains consistent contact with the upper track
• Fits door panel thicknesses from 1 inch to 1-3/8 inches
• Mounts with a simple 3/8 inch diameter hole at the top of the door panel - no complex hardware required
• Nylon wheel and plastic base construction resists corrosion in typical interior environments
• Comes as a 2-pack for replacing both panels of a standard single bi-fold door opening

Compatibility

Commonly used with Kenna frame bi-fold doors. The 7/8 inch outside diameter wheel and 3/8 inch shaft specification are also shared by a variety of other bi-fold door manufacturers. Fits door panels ranging from 1 inch to 1-3/8 inches thick.

Installation Notes

Installation is a finish carpentry task requiring no special trade license. Before installing, remove the door panel from the track and ensure the existing or new hole at the top edge measures exactly 3/8 inch in diameter. Insert the guide shaft into the hole until it seats fully against the door surface. Rehang the door panel and verify the roller engages the upper track correctly before closing.