Prime-Line N 7534 Bi-Fold Door Hardware Repair Kit –

Product Overview

The Prime-Line N 7534 Bi-Fold Door Hardware Repair Kit is a complete, reliable solution for restoring functionality to bi-fold closet doors that have become misaligned, stuck, or are missing essential components. Designed specifically for popular bi-fold door systems, this kit replaces worn, damaged, or lost hardware with precision-engineered parts made from durable steel and high-performance plastic. Whether you’re dealing with a wobbly panel, uneven folding motion, or a completely non-functional door, this repair kit brings your bi-fold closet back into smooth, dependable operation.

This comprehensive repair kit includes five key components tailored to support both the top and bottom sections of standard bi-fold doors. Each part is engineered to work seamlessly together, ensuring balanced movement and consistent alignment across both panels. Ideal for use in homes, offices, rental units, and other environments where bi-fold doors experience regular wear, the N 7534 kit allows you to fix issues without the cost or hassle of replacing an entire door system.

Compatible with major manufacturers including Acme, Alliance, and Kenna Frame—and usable on many other brands—this kit offers broad applicability. It’s especially valuable for those who own older doors or retrofit existing systems with updated hardware. By choosing genuine Prime-Line components, you ensure a direct-fit replacement that maintains original performance characteristics while enhancing longevity.

Key Features

• One N 6543 Jamb and Floor Mount Pivot Bracket: This foundational component features a robust steel base paired with an adjustable, self-lubricating plastic bushing. The design reduces friction and prevents metal-on-metal wear, promoting smoother door glide and better frame alignment. Its floor-mounted configuration secures the bottom hinge point, stabilizing the door during opening and closing cycles.
• One N 6673 Bottom Pivot: Constructed with a 3/8-inch diameter plastic base that houses a grooved pivot tip, this unit allows fine-tuning by screwing the tip in or out. This adjustability ensures proper door tracking and helps eliminate binding or sagging at the bottom edge—critical for maintaining even fold behavior across both panels.
• One Spring-Loaded 7/8 Inch Diameter N 6703 Top Roller Guide (3/8 Inch Plastic Base): Positioned at the top of the door assembly, this guide maintains constant contact between the door panel and the track. Its spring-loaded mechanism absorbs minor shifts and imbalances, preventing the door from slipping off course or creating gaps. This is particularly useful in doors that have settled over time due to humidity, settling foundations, or repeated stress.
• One Spring-Loaded 1/4 Inch Diameter N 6700 Top Pivot (3/8 Inch Plastic Base): Engineered for secure mounting at the upper section of the door, this pivot supports rotational motion while minimizing side-to-side play. The spring tension enhances flexibility, allowing the door to flex slightly during folding without losing alignment—ideal for older doors or those used frequently in high-traffic areas.
• One Spring-Loaded N 6672 Bi-Fold Closet Door Top Plastic Pivot (3/8 Inch Pivot and Base): This versatile component integrates spring action directly into its design, providing shock absorption and improved responsiveness. It’s commonly used where dynamic load distribution is needed, such as in double-panel systems or doors with heavier contents. The 3/8-inch pivot fits securely into standard tracks, ensuring reliable engagement every time.

Technical Specifications

• Materials: Steel (for structural integrity) and high-impact plastic (for durability and low friction)
• Compatibility: Designed for 1-inch and 1-3/8-inch thick doors; compatible with Kenna Frame systems and widely used by other manufacturers
• Supported Brands: Acme, Alliance, Kenna Frame, and many other leading bi-fold door producers
• Bottom Pivot Size: 3/8-inch diameter plastic base with adjustable grooved tip
• Top Roller Guide: 7/8-inch diameter spring-loaded roller on a 3/8-inch plastic base
• Pivot Options Included: 1/4-inch and 3/8-inch diameter pivots for varied mounting points and load requirements

Benefits & Use Cases

Homeowners, property managers, and maintenance professionals will appreciate how quickly and effectively this kit resolves common bi-fold door issues. If your closet door is no longer folding evenly, dragging along the track, or won’t stay open, these replacement parts address root causes like worn pivots, misaligned brackets, or lost rollers. Instead of tearing down walls or ordering expensive new doors, simply swap out the faulty components—saving both time and money.

The inclusion of spring-loaded elements throughout the kit adds resilience against daily wear, making it suitable for high-use scenarios. For example, rental properties often see frequent entry and exit through closets, accelerating hardware fatigue. Upgrading with this repair kit ensures tenants enjoy quiet, smooth operation without unexpected breakdowns.

Additionally, because all parts are included in one package, there’s no need to source individual components or worry about mismatched sizes. Installation typically requires only basic hand tools—a screwdriver and possibly a drill for securing brackets—making it accessible even for DIY beginners.

Important Notes

• Verify your door thickness before purchase; this kit works only with 1-inch and 1-3/8-inch wide doors.
• While compatible with Acme, Alliance, and Kenna Frame brands, always confirm model compatibility if unsure—especially for less common manufacturers.
• No additional hardware is required beyond what’s included, though having a level and measuring tape on hand can aid alignment during installation.
• For optimal results, clean the door track and remove old residue before installing new parts.
• If your door has severely warped panels or broken stiles, hardware replacement alone may not restore function—assess structural integrity first.
• Package includes: one N 6543 jamb/floor mount, one N 6673 bottom pivot, one N 6703 top roller guide, one N 6700 top pivot, and one N 6672 top plastic pivot.